]> git.saurik.com Git - wxWidgets.git/blobdiff - configure.in
fix XModifierKeymap memory leak (patch 1683137)
[wxWidgets.git] / configure.in
index be7ee024a56ec65dd1e7c1ae50295e057b2b11bc..cc96fcdeee2433c3e7dbe6e8d2e51da15d146889 100644 (file)
@@ -17,7 +17,7 @@ dnl ---------------------------------------------------------------------------
 dnl initialization
 dnl ---------------------------------------------------------------------------
 
-AC_INIT([wxWidgets], [2.7.1], [wx-dev@lists.wxwidgets.org])
+AC_INIT([wxWidgets], [2.9.0], [wx-dev@lists.wxwidgets.org])
 
 dnl the file passed to AC_CONFIG_SRCDIR should be specific to our package
 AC_CONFIG_SRCDIR([wx-config.in])
@@ -33,8 +33,8 @@ dnl
 dnl wx_release_number += 1
 
 wx_major_version_number=2
-wx_minor_version_number=7
-wx_release_number=2
+wx_minor_version_number=9
+wx_release_number=0
 wx_subrelease_number=0
 
 WX_RELEASE=$wx_major_version_number.$wx_minor_version_number
@@ -44,6 +44,11 @@ WX_SUBVERSION=$WX_VERSION.$wx_subrelease_number
 WX_MSW_VERSION=$wx_major_version_number$wx_minor_version_number$wx_release_number
 
 
+dnl Autoconf-2.60 changed the meaning of top_builddir variable, so we have
+dnl to use our own replacement that will work with both 2.5x and 2.60+:
+wx_top_builddir="`pwd`"
+AC_SUBST(wx_top_builddir)
+
 
 dnl ------------------------------------------------------------------------
 dnl Check platform (host system)
@@ -373,6 +378,7 @@ if test $DEBUG_CONFIGURE = 1; then
   DEFAULT_wxUSE_OPTIMISE=no
   DEFAULT_wxUSE_PROFILE=no
   DEFAULT_wxUSE_NO_DEPS=no
+  DEFAULT_wxUSE_VARARG_MACROS=no
   DEFAULT_wxUSE_NO_RTTI=no
   DEFAULT_wxUSE_NO_EXCEPTIONS=no
   DEFAULT_wxUSE_UNIVERSAL_BINARY=no
@@ -508,7 +514,6 @@ if test $DEBUG_CONFIGURE = 1; then
   DEFAULT_wxUSE_ARCHIVE_STREAMS=no
   DEFAULT_wxUSE_ZIPSTREAM=no
   DEFAULT_wxUSE_TARSTREAM=no
-  DEFAULT_wxUSE_BACKINGFILE=no
   DEFAULT_wxUSE_VALIDATORS=no
 
   DEFAULT_wxUSE_ACCEL=no
@@ -522,6 +527,7 @@ if test $DEBUG_CONFIGURE = 1; then
   DEFAULT_wxUSE_CHECKLST=no
   DEFAULT_wxUSE_CHOICE=no
   DEFAULT_wxUSE_CHOICEBOOK=no
+  DEFAULT_wxUSE_COLLPANE=no
   DEFAULT_wxUSE_COLOURPICKERCTRL=no
   DEFAULT_wxUSE_COMBOBOX=no
   DEFAULT_wxUSE_COMBOCTRL=no
@@ -546,6 +552,7 @@ if test $DEBUG_CONFIGURE = 1; then
   DEFAULT_wxUSE_RADIOBTN=no
   DEFAULT_wxUSE_SASH=no
   DEFAULT_wxUSE_SCROLLBAR=no
+  DEFAULT_wxUSE_SEARCHCTRL=no
   DEFAULT_wxUSE_SLIDER=no
   DEFAULT_wxUSE_SPINBTN=no
   DEFAULT_wxUSE_SPINCTRL=no
@@ -574,6 +581,7 @@ if test $DEBUG_CONFIGURE = 1; then
   DEFAULT_wxUSE_IMAGE=no
   DEFAULT_wxUSE_GIF=no
   DEFAULT_wxUSE_PCX=no
+  DEFAULT_wxUSE_TGA=no
   DEFAULT_wxUSE_PNM=no
   DEFAULT_wxUSE_IFF=no
   DEFAULT_wxUSE_XPM=no
@@ -595,6 +603,7 @@ else
   DEFAULT_wxUSE_OPTIMISE=yes
   DEFAULT_wxUSE_PROFILE=no
   DEFAULT_wxUSE_NO_DEPS=no
+  DEFAULT_wxUSE_VARARG_MACROS=yes
   DEFAULT_wxUSE_NO_RTTI=no
   DEFAULT_wxUSE_NO_EXCEPTIONS=no
   DEFAULT_wxUSE_UNIVERSAL_BINARY=no
@@ -626,7 +635,7 @@ else
   DEFAULT_wxUSE_LIBXPM=yes
   DEFAULT_wxUSE_LIBMSPACK=yes
   DEFAULT_wxUSE_LIBSDL=no
-  DEFAULT_wxUSE_LIBGNOMEPRINT=no
+  DEFAULT_wxUSE_LIBGNOMEPRINT=yes
   DEFAULT_wxUSE_LIBGNOMEVFS=no
   DEFAULT_wxUSE_LIBHILDON=no
   DEFAULT_wxUSE_ODBC=no
@@ -729,7 +738,6 @@ else
   DEFAULT_wxUSE_ARCHIVE_STREAMS=yes
   DEFAULT_wxUSE_ZIPSTREAM=yes
   DEFAULT_wxUSE_TARSTREAM=yes
-  DEFAULT_wxUSE_BACKINGFILE=yes
   DEFAULT_wxUSE_VALIDATORS=yes
 
   DEFAULT_wxUSE_ACCEL=yes
@@ -743,6 +751,7 @@ else
   DEFAULT_wxUSE_CHECKLST=yes
   DEFAULT_wxUSE_CHOICE=yes
   DEFAULT_wxUSE_CHOICEBOOK=yes
+  DEFAULT_wxUSE_COLLPANE=yes
   DEFAULT_wxUSE_COLOURPICKERCTRL=yes
   DEFAULT_wxUSE_COMBOBOX=yes
   DEFAULT_wxUSE_COMBOCTRL=yes
@@ -767,6 +776,7 @@ else
   DEFAULT_wxUSE_RADIOBTN=yes
   DEFAULT_wxUSE_SASH=yes
   DEFAULT_wxUSE_SCROLLBAR=yes
+  DEFAULT_wxUSE_SEARCHCTRL=yes
   DEFAULT_wxUSE_SLIDER=yes
   DEFAULT_wxUSE_SPINBTN=yes
   DEFAULT_wxUSE_SPINCTRL=yes
@@ -795,7 +805,8 @@ else
   DEFAULT_wxUSE_IMAGE=yes
   DEFAULT_wxUSE_GIF=yes
   DEFAULT_wxUSE_PCX=yes
-  DEFAULT_wxUSE_IFF=no
+  DEFAULT_wxUSE_TGA=yes
+  DEFAULT_wxUSE_IFF=no  dnl why is this set to "no"?
   DEFAULT_wxUSE_PNM=yes
   DEFAULT_wxUSE_XPM=yes
   DEFAULT_wxUSE_ICO_CUR=yes
@@ -923,10 +934,11 @@ WX_ARG_ENABLE(no_rtti,       [  --enable-no_rtti        create code without RTTI
 WX_ARG_ENABLE(no_exceptions, [  --enable-no_exceptions  create code without C++ exceptions handling], wxUSE_NO_EXCEPTIONS)
 WX_ARG_ENABLE(permissive,    [  --enable-permissive     compile code disregarding strict ANSI], wxUSE_PERMISSIVE)
 WX_ARG_ENABLE(no_deps,       [  --enable-no_deps        create code without dependency information], wxUSE_NO_DEPS)
+WX_ARG_ENABLE(vararg_macros, [  --disable-vararg_macros don't use vararg macros, even if they are supported], wxUSE_VARARG_MACROS)
 WX_ARG_ENABLE_PARAM(universal_binary, [[  --enable-universal_binary[=SDK] create Mac PowerPC and Intel Universal binary (not yet working)]], wxUSE_UNIVERSAL_BINARY)
 
-WX_ARG_ENABLE(compat24,      [  --enable-compat24       enable wxWidgets 2.4 compatibility], WXWIN_COMPATIBILITY_2_4, enable)
-WX_ARG_ENABLE(compat26,      [  --disable-compat26      disable wxWidgets 2.6 compatibility], WXWIN_COMPATIBILITY_2_6, disable)
+WX_ARG_ENABLE(compat26,      [  --enable-compat26       enable wxWidgets 2.6 compatibility], WXWIN_COMPATIBILITY_2_6, enable)
+WX_ARG_ENABLE(compat28,      [  --disable-compat28      disable wxWidgets 2.8 compatibility], WXWIN_COMPATIBILITY_2_8, disable)
 
 WX_ARG_ENABLE(rpath,         [  --disable-rpath         disable use of rpath for uninstalled builds], wxUSE_RPATH)
 
@@ -951,7 +963,6 @@ WX_ARG_ENABLE(ipc,           [  --enable-ipc            use interprocess communi
 dnl please keep the settings below in alphabetical order
 WX_ARG_ENABLE(apple_ieee,    [  --enable-apple_ieee     use the Apple IEEE codec], wxUSE_APPLE_IEEE)
 WX_ARG_ENABLE(arcstream,     [  --enable-arcstream      use wxArchive streams], wxUSE_ARCHIVE_STREAMS)
-WX_ARG_ENABLE(backingfile,   [  --enable-backingfile    use wxBackingFile], wxUSE_BACKINGFILE)
 WX_ARG_ENABLE(backtrace,     [  --enable-backtrace      use wxStackWalker class for getting backtraces], wxUSE_STACKWALKER)
 WX_ARG_ENABLE(catch_segvs,   [  --enable-catch_segvs    catch signals in wxApp::OnFatalException (Unix only)], wxUSE_ON_FATAL_EXCEPTION)
 WX_ARG_ENABLE(cmdline,       [  --enable-cmdline        use wxCmdLineParser class], wxUSE_CMDLINE_PARSER)
@@ -967,7 +978,7 @@ WX_ARG_ENABLE(filesystem,    [  --enable-filesystem     use virtual file systems
 WX_ARG_ENABLE(fontmap,       [  --enable-fontmap        use font encodings conversion classes], wxUSE_FONTMAP)
 WX_ARG_ENABLE(fs_archive,    [  --enable-fs_archive     use virtual archive filesystems], wxUSE_FS_ARCHIVE)
 WX_ARG_ENABLE(fs_inet,       [  --enable-fs_inet        use virtual HTTP/FTP filesystems], wxUSE_FS_INET)
-WX_ARG_ENABLE(fs_zip,        [  --enable-fs_zip         use virtual ZIP filesystems], wxUSE_FS_ZIP)
+WX_ARG_ENABLE(fs_zip,        [  --enable-fs_zip         now replaced by fs_archive], wxUSE_FS_ZIP)
 WX_ARG_ENABLE(geometry,      [  --enable-geometry       use geometry class], wxUSE_GEOMETRY)
 WX_ARG_ENABLE(log,           [  --enable-log            use logging system], wxUSE_LOG)
 WX_ARG_ENABLE(longlong,      [  --enable-longlong       use wxLongLong class], wxUSE_LONGLONG)
@@ -1026,7 +1037,7 @@ WX_ARG_ENABLE(loggui,      [  --enable-loggui         use standard GUI logger],
 WX_ARG_ENABLE(logwin,      [  --enable-logwin         use wxLogWindow], wxUSE_LOGWINDOW)
 WX_ARG_ENABLE(logdialog,   [  --enable-logdialog      use wxLogDialog], wxUSE_LOGDIALOG)
 WX_ARG_ENABLE(webkit,      [  --enable-webkit         use wxWebKitCtrl (Mac)], wxUSE_WEBKIT)
-WX_ARG_ENABLE(html,        [  --enable-richtext       use wxRichTextCtrl], wxUSE_RICHTEXT)
+WX_ARG_ENABLE(richtext,    [  --enable-richtext       use wxRichTextCtrl], wxUSE_RICHTEXT)
 WX_ARG_ENABLE(graphics_ctx, [  --enable-graphics_ctx   use graphics context 2D drawing API], wxUSE_GRAPHICS_CONTEXT)
 
 dnl ---------------------------------------------------------------------------
@@ -1076,6 +1087,7 @@ if test "$wxUSE_CONTROLS" = "yes"; then
   DEFAULT_wxUSE_CHECKLISTBOX=yes
   DEFAULT_wxUSE_CHOICE=yes
   DEFAULT_wxUSE_CHOICEBOOK=yes
+  DEFAULT_wxUSE_COLLPANE=yes
   DEFAULT_wxUSE_COLOURPICKERCTRL=yes
   DEFAULT_wxUSE_COMBOBOX=yes
   DEFAULT_wxUSE_DATEPICKCTRL=yes
@@ -1097,6 +1109,7 @@ if test "$wxUSE_CONTROLS" = "yes"; then
   DEFAULT_wxUSE_RADIOBTN=yes
   DEFAULT_wxUSE_SASH=yes
   DEFAULT_wxUSE_SCROLLBAR=yes
+  DEFAULT_wxUSE_SEARCHCTRL=yes
   DEFAULT_wxUSE_SLIDER=yes
   DEFAULT_wxUSE_SPINBTN=yes
   DEFAULT_wxUSE_SPINCTRL=yes
@@ -1122,6 +1135,7 @@ elif test "$wxUSE_CONTROLS" = "no"; then
   DEFAULT_wxUSE_BUTTON=no
   DEFAULT_wxUSE_CALCTRL=no
   DEFAULT_wxUSE_CARET=no
+  DEFAULT_wxUSE_COLLPANE=no
   DEFAULT_wxUSE_COMBOBOX=no
   DEFAULT_wxUSE_CHECKBOX=no
   DEFAULT_wxUSE_CHECKLISTBOX=no
@@ -1148,6 +1162,7 @@ elif test "$wxUSE_CONTROLS" = "no"; then
   DEFAULT_wxUSE_RADIOBTN=no
   DEFAULT_wxUSE_SASH=no
   DEFAULT_wxUSE_SCROLLBAR=no
+  DEFAULT_wxUSE_SEARCHCTRL=no
   DEFAULT_wxUSE_SLIDER=no
   DEFAULT_wxUSE_SPINBTN=no
   DEFAULT_wxUSE_SPINCTRL=no
@@ -1179,6 +1194,7 @@ WX_ARG_ENABLE(checkbox,    [  --enable-checkbox       use wxCheckBox class], wxU
 WX_ARG_ENABLE(checklst,    [  --enable-checklst       use wxCheckListBox (listbox with checkboxes) class], wxUSE_CHECKLST)
 WX_ARG_ENABLE(choice,      [  --enable-choice         use wxChoice class], wxUSE_CHOICE)
 WX_ARG_ENABLE(choicebook,  [  --enable-choicebook     use wxChoicebook class], wxUSE_CHOICEBOOK)
+WX_ARG_ENABLE(collpane,    [  --enable-collpane       use wxCollapsiblePane class], wxUSE_COLLPANE)
 WX_ARG_ENABLE(colourpicker,[  --enable-colourpicker   use wxColourPickerCtrl class], wxUSE_COLOURPICKERCTRL)
 WX_ARG_ENABLE(combobox,    [  --enable-combobox       use wxComboBox class], wxUSE_COMBOBOX)
 WX_ARG_ENABLE(comboctrl,   [  --enable-comboctrl      use wxComboCtrl class], wxUSE_COMBOCTRL)
@@ -1190,7 +1206,7 @@ WX_ARG_ENABLE(filepicker,  [  --enable-filepicker     use wxFilePickerCtrl class
 WX_ARG_ENABLE(fontpicker,  [  --enable-fontpicker     use wxFontPickerCtrl class], wxUSE_FONTPICKERCTRL)
 WX_ARG_ENABLE(gauge,       [  --enable-gauge          use wxGauge class], wxUSE_GAUGE)
 WX_ARG_ENABLE(grid,        [  --enable-grid           use wxGrid class], wxUSE_GRID)
-WX_ARG_ENABLE(dataviewctrl,[  --enable-dataviewctrl,  use wxDataViewCtrl class], wxUSE_DATAVIEWCTRL)
+WX_ARG_ENABLE(dataviewctrl,[  --enable-dataviewctrl   use wxDataViewCtrl class], wxUSE_DATAVIEWCTRL)
 WX_ARG_ENABLE(hyperlink,   [  --enable-hyperlink      use wxHyperlinkCtrl class], wxUSE_HYPERLINKCTRL)
 WX_ARG_ENABLE(imaglist,    [  --enable-imaglist       use wxImageList class], wxUSE_IMAGLIST)
 WX_ARG_ENABLE(listbook,    [  --enable-listbook       use wxListbook class], wxUSE_LISTBOOK)
@@ -1202,6 +1218,7 @@ WX_ARG_ENABLE(radiobox,    [  --enable-radiobox       use wxRadioBox class], wxU
 WX_ARG_ENABLE(radiobtn,    [  --enable-radiobtn       use wxRadioButton class], wxUSE_RADIOBTN)
 WX_ARG_ENABLE(sash,        [  --enable-sash           use wxSashWindow class], wxUSE_SASH)
 WX_ARG_ENABLE(scrollbar,   [  --enable-scrollbar      use wxScrollBar class and scrollable windows], wxUSE_SCROLLBAR)
+WX_ARG_ENABLE(searchctrl,  [  --enable-searchctrl     use wxSearchCtrl class], wxUSE_SEARCHCTRL)
 WX_ARG_ENABLE(slider,      [  --enable-slider         use wxSlider class], wxUSE_SLIDER)
 WX_ARG_ENABLE(spinbtn,     [  --enable-spinbtn        use wxSpinButton class], wxUSE_SPINBTN)
 WX_ARG_ENABLE(spinctrl,    [  --enable-spinctrl       use wxSpinCtrl class], wxUSE_SPINCTRL)
@@ -1270,6 +1287,7 @@ WX_ARG_ENABLE(palette,     [  --enable-palette        use wxPalette class], wxUS
 WX_ARG_ENABLE(image,       [  --enable-image          use wxImage class], wxUSE_IMAGE)
 WX_ARG_ENABLE(gif,         [  --enable-gif            use gif images (GIF file format)], wxUSE_GIF)
 WX_ARG_ENABLE(pcx,         [  --enable-pcx            use pcx images (PCX file format)], wxUSE_PCX)
+WX_ARG_ENABLE(tga,         [  --enable-tga            use tga images (TGA file format)], wxUSE_TGA)
 WX_ARG_ENABLE(iff,         [  --enable-iff            use iff images (IFF file format)], wxUSE_IFF)
 WX_ARG_ENABLE(pnm,         [  --enable-pnm            use pnm images (PNM file format)], wxUSE_PNM)
 WX_ARG_ENABLE(xpm,         [  --enable-xpm            use xpm images (XPM file format)], wxUSE_XPM)
@@ -1313,6 +1331,8 @@ if test "$wxUSE_WINE" = "yes"; then
     DEFAULT_DEFAULT_wxUSE_MOTIF=0
     DEFAULT_DEFAULT_wxUSE_MSW=1
     wxUSE_SHARED=no
+    CC=${CC:-winegcc}
+    CXX=${CXX:-wineg++}
 fi
 
 
@@ -1411,61 +1431,6 @@ else
     fi
 fi
 
-dnl ---------------------------------------------------------------------------
-dnl When we are using Cygwin with Motif/GTK+, we want it to appear like
-dnl 'just' a POSIX platform, so the Win32 API must not be available
-dnl ---------------------------------------------------------------------------
-dnl (Windows-only piece)
-wants_win32=0
-doesnt_want_win32=0
-case "${host}" in
-  *-*-cygwin*)
-      if test "$wxUSE_MSW" = 1 ; then
-        wants_win32=1
-        BAKEFILE_FORCE_PLATFORM=win32
-      else
-        doesnt_want_win32=1
-      fi
-  ;;
-  *-*-mingw*)
-      wants_win32=1
-  ;;
-esac
-
-dnl ---------------------------------------------------------------------------
-dnl Wine is a virtual platform, we need to patch things up a bit
-dnl ---------------------------------------------------------------------------
-if test "$wxUSE_WINE" = "yes"; then
-    wants_win32=1
-    dnl FIXME: we should do a better job of testing for these
-    CC=winegcc
-    CXX=wineg++
-    LDFLAGS_GUI="-mwindows"
-fi
-
-dnl NB: The two tests bellow are *NOT* mutually exclusive! They should only
-dnl     take effect on Cygwin/Mingw and not other platforms.
-if test "$wants_win32" = 1 ; then
-    USE_UNIX=0
-    USE_WIN32=1
-    AC_DEFINE(__WIN32__)
-    AC_DEFINE(__WIN95__)
-    AC_DEFINE(__WINDOWS__)
-    AC_DEFINE(__GNUWIN32__)
-    AC_DEFINE(STRICT)
-    AC_DEFINE(WINVER, 0x0400)
-fi
-if test "$doesnt_want_win32" = 1 ; then
-    USE_UNIX=1
-    USE_WIN32=0
-fi
-dnl (end of Windows-only piece)
-
-if test "$USE_UNIX" = 1 ; then
-    wxUSE_UNIX=yes
-    AC_DEFINE(__UNIX__)
-fi
-
 dnl ---------------------------------------------------------------------------
 dnl Checks for programs
 dnl ---------------------------------------------------------------------------
@@ -1489,12 +1454,6 @@ dnl is -traditional needed for correct compilations
 dnl   adds -traditional for gcc if needed
 AC_PROG_GCC_TRADITIONAL
 
-dnl do all checks from now on using the C++ compiler: this saves us a lot of
-dnl problems with various functions which may be available in libc but not
-dnl declared in the header and various pointer conversions which compile with
-dnl the C compiler but not in C++
-AC_LANG_PUSH(C++)
-
 dnl C++-compiler checks
 dnl   defines CXX with the compiler to use
 dnl   defines GXX with yes if using gxx
@@ -1511,9 +1470,13 @@ AC_PROG_RANLIB
 
 dnl ar command
 dnl   defines AR with the appropriate command
-AC_CHECK_TOOL(AR, ar)
-if test "x$AR" = "x" ; then
-    AC_MSG_ERROR([ar is needed to build wxWidgets])
+dnl 
+dnl For Sun CC AC_BAKEFILE below sets AR to the compiler itself.
+if test "x$SUNCXX" != xyes; then
+    AC_CHECK_TOOL(AR, ar)
+    if test "x$AR" = "x" ; then
+        AC_MSG_ERROR([ar is needed to build wxWidgets])
+    fi
 fi
 
 dnl install checks
@@ -1570,7 +1533,7 @@ dnl does make support "-include" (only GNU make does AFAIK)?
 AC_CACHE_CHECK([if make is GNU make], wx_cv_prog_makeisgnu,
 [
     if ( ${SHELL-sh} -c "${MAKE-make} --version" 2> /dev/null |
-            egrep -s GNU > /dev/null); then
+            $EGREP -s GNU > /dev/null); then
         wx_cv_prog_makeisgnu="yes"
     else
         wx_cv_prog_makeisgnu="no"
@@ -1678,6 +1641,74 @@ case "${host}" in
   ;;
 esac
 
+dnl Determine whether we want to use Cygwin as Windows or POSIX platform: the
+dnl latter makes more sense for wxGTK/Motif/X11 ports
+wants_win32=0
+doesnt_want_win32=0
+case "${host}" in
+  *-*-cygwin*)
+      if test "$wxUSE_MSW" = 1 ; then
+        wants_win32=1
+      else
+        dnl when we use cygwin compiler with -mno-cygwin option it uses mingw32
+        dnl headers and libraries, so it's Windows-like in this case
+        AC_CACHE_CHECK([if -mno-cygwin is in effect], wx_cv_nocygwin,
+            [
+                AC_TRY_COMPILE(
+                    [],
+                    [
+                        #ifdef __MINGW32__
+                            choke me
+                        #endif
+                    ],
+                    wx_cv_nocygwin=no,
+                    wx_cv_nocygwin=yes
+                )
+            ]
+        )
+
+        if test "$wx_cv_nocygwin" = "yes"; then
+            wants_win32=1
+        else
+            doesnt_want_win32=1
+        fi
+      fi
+      if test "$wants_win32" = 1 ; then
+        BAKEFILE_FORCE_PLATFORM=win32
+      fi
+  ;;
+  *-*-mingw*)
+      wants_win32=1
+  ;;
+esac
+
+if test "$wxUSE_WINE" = "yes"; then
+    wants_win32=1
+    LDFLAGS_GUI="-mwindows"
+fi
+
+dnl NB: The two tests bellow are *NOT* mutually exclusive! They should only
+dnl     take effect on Cygwin/Mingw and not other platforms.
+if test "$wants_win32" = 1 ; then
+    USE_UNIX=0
+    USE_WIN32=1
+    AC_DEFINE(__WIN32__)
+    AC_DEFINE(__WIN95__)
+    AC_DEFINE(__WINDOWS__)
+    AC_DEFINE(__GNUWIN32__)
+    AC_DEFINE(STRICT)
+fi
+if test "$doesnt_want_win32" = 1 ; then
+    USE_UNIX=1
+    USE_WIN32=0
+fi
+dnl (end of Windows-only piece)
+
+if test "$USE_UNIX" = 1 ; then
+    wxUSE_UNIX=yes
+    AC_DEFINE(__UNIX__)
+fi
+
 dnl This case is for OS/2 vs. everything else
 case "${host}" in
   *-pc-os2_emx | *-pc-os2-emx )
@@ -1689,7 +1720,6 @@ case "${host}" in
       dnl not "g++/c++".
       dnl ---------------------------------------------------------------------
       dnl (OS/2-only piece)
-      AC_LANG_PUSH(C)
       if test "$wxUSE_MOTIF" = 1 -o "$wxUSE_GTK" = 1 -o "$wxUSE_X11" = 1; then
           dnl More complete Unix emulation for unix-like ports
           dnl by linking in POSIX/2's cExt (if available).
@@ -1733,7 +1763,6 @@ case "${host}" in
               wx_cv_gccversion="EMX2"
           )
       ])
-      AC_LANG_POP
       if test "$wx_cv_gccversion" = "EMX2"; then
           LIBS="$LIBS -lstdcpp"
           LDFLAGS="$LDFLAGS -Zsysv-signals"
@@ -1802,27 +1831,15 @@ dnl ------------------------------------------------------------------------
 dnl Check for headers
 dnl ------------------------------------------------------------------------
 
-dnl defines HAVE_STDLIB_H
-AC_CHECK_HEADERS(stdlib.h)
-dnl defines HAVE_MALLOC_H
-AC_CHECK_HEADERS(malloc.h)
-dnl defines HAVE_UNISTD_H
-AC_CHECK_HEADERS(unistd.h)
-dnl defines HAVE_WCHAR_H
-AC_CHECK_HEADERS(wchar.h)
+dnl Note: non-empty last parameter makes check compile-only,
+dnl   skipping worthless preprocessing check
+AC_CHECK_HEADERS(stdlib.h fnmatch.h langinfo.h malloc.h unistd.h wchar.h,,, [AC_INCLUDES_DEFAULT()])
 
 dnl maybe wchar_t is in wcstr.h if we don't have wchar.h?
 if test "$ac_cv_header_wchar_h" != "yes"; then
-    dnl defines HAVE_WCSTR_H
-    AC_CHECK_HEADERS(wcstr.h)
+    AC_CHECK_HEADER(wcstr.h,,, [AC_INCLUDES_DEFAULT()])
 fi
 
-dnl defines HAVE_FNMATCH_H
-AC_CHECK_HEADERS(fnmatch.h)
-
-dnl defines HAVE_LANGINFO_H (GNU libc locale parameters)
-AC_CHECK_HEADERS(langinfo.h)
-
 case "${host}" in
   *-pc-os2_emx | *-pc-os2-emx )
       dnl Explicitly link -lintl if langinfo.h is available
@@ -1838,7 +1855,7 @@ esac
 
 dnl POSIX needs this for select(), but old systems don't have it
 if test "$USE_UNIX" = 1 ; then
-    AC_CHECK_HEADERS([sys/select.h])
+    AC_CHECK_HEADER([sys/select.h],,, [AC_INCLUDES_DEFAULT()])
 fi
 
 dnl ---------------------------------------------------------------------------
@@ -1853,7 +1870,6 @@ AC_C_INLINE
 dnl check the sizes of integral types (give some reasonable default values for
 dnl cross-compiling)
 dnl   defines the size of certain types of variables in SIZEOF_<TYPE>
-AC_CHECK_SIZEOF(char, 1)
 AC_CHECK_SIZEOF(short, 2)
 AC_CHECK_SIZEOF(void *, 4)
 AC_CHECK_SIZEOF(int, 4)
@@ -1965,11 +1981,19 @@ else
     fi
 fi
 
+dnl don't check for vararg macros if they're explicitly disabled: this is
+dnl useful if the user code using the library wants to limit itself to standard
+dnl C++ only (e.g. is compiled with g++ -std=c++98)
+if test "$wxUSE_VARARG_MACROS" = "yes"; then
+
 dnl Check if variadic macros (C99 feature) are supported:
 AC_CACHE_CHECK(
     [whether the compiler supports variadic macros],
     [wx_cv_have_variadic_macros],
     [
+        dnl C compiler might support variadic macros when C++ one doesn't
+        dnl (happens with gcc/g++ 2.95.4), so must use C++ one explicitly
+        AC_LANG_PUSH(C++)
         AC_COMPILE_IFELSE(
             AC_LANG_PROGRAM(
                 [
@@ -1983,6 +2007,7 @@ AC_CACHE_CHECK(
             [wx_cv_have_variadic_macros=yes],
             [wx_cv_have_variadic_macros=no]
             )
+        AC_LANG_POP()
     ]
 )
 
@@ -1990,6 +2015,8 @@ if test $wx_cv_have_variadic_macros = "yes"; then
     AC_DEFINE(HAVE_VARIADIC_MACROS)
 fi
 
+fi dnl wxUSE_VARARG_MACROS == yes
+
 dnl check for large file support
 AC_SYS_LARGEFILE
 
@@ -2013,6 +2040,7 @@ if test "x$wx_largefile" = "xyes"; then
                 [if -D__STDC_EXT__ is required],
                 wx_cv_STDC_EXT_required,
                 [
+                    AC_LANG_PUSH(C++)
                     AC_TRY_COMPILE(
                         [],
                         [
@@ -2023,6 +2051,7 @@ if test "x$wx_largefile" = "xyes"; then
                         wx_cv_STDC_EXT_required=no,
                         wx_cv_STDC_EXT_required=yes
                     )
+                    AC_LANG_POP()
                 ]
             )
             if test "x$wx_cv_STDC_EXT_required" = "xyes"; then
@@ -2112,6 +2141,10 @@ if test "x$COMPAQCXX" = "xyes"; then
     CXXFLAGS="-w0 -msg_disable basclsnondto,unrimpret,intconlosbit"
 fi
 
+dnl the next few tests are all for C++ features and so need to be done using
+dnl C++ compiler
+AC_LANG_PUSH(C++)
+
 dnl check for std::string or std::wstring
 if test "$wxUSE_STD_STRING" = "yes" -o "$wxUSE_STL" = "yes"; then
     if test "$wxUSE_UNICODE" = "yes"; then
@@ -2122,42 +2155,60 @@ if test "$wxUSE_STD_STRING" = "yes" -o "$wxUSE_STL" = "yes"; then
         char_type="char"
     fi
 
-    dnl check if <string> declares std::wstring
-    AC_MSG_CHECKING([for $std_string in <string>])
-    AC_TRY_COMPILE([#include <string>],
-                   [$std_string foo;],
-                   [AC_MSG_RESULT(yes)
-                    AC_DEFINE(HAVE_STD_WSTRING)],
-                   [AC_MSG_RESULT(no)
-                    AC_MSG_CHECKING([if std::basic_string<$char_type> works])
-                    AC_TRY_COMPILE([
-                        #ifdef HAVE_WCHAR_H
-                        #  ifdef __CYGWIN__
-                        #    include <stddef.h>
-                        #  endif
-                        #  include <wchar.h>
-                        #endif
-                        #ifdef HAVE_STDLIB_H
-                        #  include <stdlib.h>
-                        #endif
-                        #include <stdio.h>
-                        #include <string>
-                        ],
-                        [std::basic_string<$char_type> foo;
-                         const $char_type* dummy = foo.c_str();],
-                        [AC_MSG_RESULT(yes)],
-                        [AC_MSG_RESULT([no])
-                         if test "$wxUSE_STL" = "yes"; then
-                             AC_MSG_ERROR([Can't use --enable-stl without $std_string or std::basic_string<$char_type>])
-                         elif grep wxUSE_STD_STRING $wx_arg_cache_file >/dev/null; then
-                             AC_MSG_ERROR([Can't use --enable-std_string without $std_string or std::basic_string<$char_type>])
-                         else
-                             AC_MSG_WARN([No $std_string or std::basic_string<$char_type>, switching to --disable-std_string])
-                             wxUSE_STD_STRING=no
-                         fi
-                        ]
-                    )
-                    ])
+    dnl check if <string> declares std::[w]string
+    AC_CACHE_CHECK([for $std_string in <string>],
+        wx_cv_class_stdstring,
+        [
+            AC_TRY_COMPILE([#include <string>],
+                [$std_string foo;],
+                wx_cv_class_stdstring=yes,
+                wx_cv_class_stdstring=no
+            )
+        ]
+    )
+
+    if test "$wx_cv_class_stdstring" = yes; then
+        if test "$wxUSE_UNICODE" = "yes"; then
+            AC_DEFINE(HAVE_STD_WSTRING)
+        fi
+        dnl we don't need HAVE_STD_STRING, we just suppose it's available if
+        dnl wxUSE_STD_STRING==yes
+    else
+        AC_CACHE_CHECK([if std::basic_string<$char_type> works],
+            wx_cv_class_stdbasicstring,
+            [
+                AC_TRY_COMPILE([
+                    #ifdef HAVE_WCHAR_H
+                    #  ifdef __CYGWIN__
+                    #    include <stddef.h>
+                    #  endif
+                    #  include <wchar.h>
+                    #endif
+                    #ifdef HAVE_STDLIB_H
+                    #  include <stdlib.h>
+                    #endif
+                    #include <stdio.h>
+                    #include <string>
+                    ],
+                    [std::basic_string<$char_type> foo;
+                     const $char_type* dummy = foo.c_str();],
+                    wx_cv_class_stdbasicstring=yes,
+                    wx_cv_class_stdbasicstring=no
+                )
+            ]
+        )
+
+        if test "$wx_cv_class_stdbasicstring" != yes; then
+            if test "$wxUSE_STL" = "yes"; then
+                AC_MSG_ERROR([Can't use --enable-stl without $std_string or std::basic_string<$char_type>])
+            elif grep wxUSE_STD_STRING $wx_arg_cache_file >/dev/null; then
+                AC_MSG_ERROR([Can't use --enable-std_string without $std_string or std::basic_string<$char_type>])
+            else
+                AC_MSG_WARN([No $std_string or std::basic_string<$char_type>, switching to --disable-std_string])
+                wxUSE_STD_STRING=no
+            fi
+        fi
+    fi
 fi
 
 if test "$wxUSE_STD_IOSTREAM" = "yes"; then
@@ -2176,61 +2227,92 @@ fi
 
 if test "$wxUSE_STL" = "yes"; then
     dnl check for basic STL functionality
-    AC_MSG_CHECKING([for basic STL functionality])
-    AC_TRY_COMPILE([#include <string>
-                    #include <functional>
-                    #include <algorithm>
-                    #include <vector>
-                    #include <list>],
-                    [std::vector<int> moo;
-                     std::list<int> foo;
-                     std::vector<int>::iterator it =
-                         std::find_if(moo.begin(), moo.end(),
-                                      std::bind2nd(std::less<int>(), 3));],
-                    [AC_MSG_RESULT([yes])],
-                    [AC_MSG_RESULT([no])
-                     AC_MSG_ERROR([Basic STL functionality missing])])
+    AC_CACHE_CHECK([for basic STL functionality],
+        wx_cv_lib_stl,
+        [AC_TRY_COMPILE([#include <string>
+            #include <functional>
+            #include <algorithm>
+            #include <vector>
+            #include <list>],
+            [std::vector<int> moo;
+             std::list<int> foo;
+             std::vector<int>::iterator it =
+                 std::find_if(moo.begin(), moo.end(),
+                              std::bind2nd(std::less<int>(), 3));],
+            wx_cv_lib_stl=yes,
+            wx_cv_lib_stl=no
+        )]
+    )
+
+    if test "$wx_cv_lib_stl" != yes; then
+         AC_MSG_ERROR([Can't use --enable-stl as basic STL functionality is missing])
+    fi
 
     dnl check for compliant std::string::compare
-    AC_MSG_CHECKING([for compliant std::string::compare])
-    AC_TRY_COMPILE([#include <string>],
-                   [std::string foo, bar;
-                    foo.compare(bar);
-                    foo.compare(1, 1, bar);
-                    foo.compare(1, 1, bar, 1, 1);
-                    foo.compare("");
-                    foo.compare(1, 1, "");
-                    foo.compare(1, 1, "", 2);],
-                   [AC_MSG_RESULT(yes)
-                    AC_DEFINE(HAVE_STD_STRING_COMPARE)],
-                   [AC_MSG_RESULT(no)])
+    AC_CACHE_CHECK([for compliant std::string::compare],
+        wx_cv_func_stdstring_compare,
+        [AC_TRY_COMPILE([#include <string>],
+            [std::string foo, bar;
+            foo.compare(bar);
+            foo.compare(1, 1, bar);
+            foo.compare(1, 1, bar, 1, 1);
+            foo.compare("");
+            foo.compare(1, 1, "");
+            foo.compare(1, 1, "", 2);],
+            wx_cv_func_stdstring_compare=yes,
+            wx_cv_func_stdstring_compare=no
+        )]
+    )
+
+    if test "$wx_cv_func_stdstring_compare" = yes; then
+        AC_DEFINE(HAVE_STD_STRING_COMPARE)
+    fi
 
     dnl check for hash_map and hash_set headers
     AC_CHECK_HEADER([hash_map],
-                    [AC_MSG_CHECKING([for hash_map and hash_set])
-                     AC_TRY_COMPILE([#include <hash_map>
-                                     #include <hash_set>],
-                                    [std::hash_map<double*, char*, std::hash<double*>, std::equal_to<double*> > test1;
-                                     std::hash_set<char*, std::hash<char*>, std::equal_to<char*> > test2;],
-                                    [AC_MSG_RESULT(yes)
-                                     AC_DEFINE(HAVE_HASH_MAP)
-                                     AC_DEFINE(HAVE_STD_HASH_MAP)],
-                                    [AC_MSG_RESULT(no)])
-                     ])
+        [AC_CACHE_CHECK([for standard hash_map and hash_set],
+            wx_cv_class_stdhashmapset,
+            [AC_TRY_COMPILE([#include <hash_map>
+                #include <hash_set>],
+                [std::hash_map<double*, char*, std::hash<double*>, std::equal_to<double*> > test1;
+                 std::hash_set<char*, std::hash<char*>, std::equal_to<char*> > test2;],
+                wx_cv_class_stdhashmapset=yes,
+                wx_cv_class_stdhashmapset=no)
+            ]
+        )],
+        [],
+        [ ]
+    )
+
+    if test "$wx_cv_class_stdhashmapset" = yes; then
+        AC_DEFINE(HAVE_HASH_MAP)
+        AC_DEFINE(HAVE_STD_HASH_MAP)
+    fi
 
     AC_CHECK_HEADER([ext/hash_map],
-                    [AC_MSG_CHECKING([for hash_map and hash_set])
-                     AC_TRY_COMPILE([#include <ext/hash_map>
-                                     #include <ext/hash_set>],
-                                    [__gnu_cxx::hash_map<double*, char*, __gnu_cxx::hash<double*>, std::equal_to<double*> > test1;
-                                     __gnu_cxx::hash_set<char*, __gnu_cxx::hash<char*>, std::equal_to<char*> > test2;],
-                                    [AC_MSG_RESULT(yes)
-                                     AC_DEFINE(HAVE_EXT_HASH_MAP)
-                                     AC_DEFINE(HAVE_GNU_CXX_HASH_MAP)],
-                                    [AC_MSG_RESULT(no)])
-                     ])
+        [AC_CACHE_CHECK([for GNU hash_map and hash_set],
+            wx_cv_class_gnuhashmapset,
+            [AC_TRY_COMPILE([#include <ext/hash_map>
+                #include <ext/hash_set>],
+                [__gnu_cxx::hash_map<double*, char*, __gnu_cxx::hash<double*>, std::equal_to<double*> > test1;
+                 __gnu_cxx::hash_set<char*, __gnu_cxx::hash<char*>, std::equal_to<char*> > test2;],
+                wx_cv_class_gnuhashmapset=yes,
+                wx_cv_class_gnuhashmapset=no)
+            ]
+        )],
+        [],
+        [ ]
+    )
+
+    if test "$wx_cv_class_gnuhashmapset" = yes; then
+         AC_DEFINE(HAVE_EXT_HASH_MAP)
+         AC_DEFINE(HAVE_GNU_CXX_HASH_MAP)
+    fi
 fi
 
+dnl pop C++
+AC_LANG_POP()
+
 dnl ---------------------------------------------------------------------------
 dnl Define search path for includes and libraries: all headers and libs will be
 dnl looked for in all directories of this path
@@ -2468,11 +2550,16 @@ fi
 
 dnl check for C99 string to long long conversion functions, assume that if we
 dnl have the unsigned variants, then we have the signed ones as well
+dnl
+dnl at least under SGI these functions are only available in C99 code and not
+dnl in C++ so do these tests using C++ compiler
+AC_LANG_PUSH(C++)
 if test "wxUSE_UNICODE" = "yes"; then
-    AC_CHECK_FUNCS(wcstoull)
+    WX_CHECK_FUNCS(wcstoull)
 else
-    AC_CHECK_FUNCS(strtoull)
+    WX_CHECK_FUNCS(strtoull)
 fi
+AC_LANG_POP()
 
 dnl ---------------------------------------------------------------------------
 dnl Optional libraries
@@ -2509,7 +2596,7 @@ if test "$wxUSE_REGEX" != "no"; then
     if test "$wxUSE_REGEX" = "sys" -o "$wxUSE_REGEX" = "yes" ; then
         dnl according to Unix 98 specs, regcomp() is in libc but I believe that
         dnl on some old systems it may be in libregex - check for it too?
-        AC_CHECK_HEADER(regex.h, [AC_CHECK_FUNCS(regcomp re_search)])
+        AC_CHECK_HEADER(regex.h, [AC_CHECK_FUNCS(regcomp re_search)],, [ ])
 
         if test "x$ac_cv_func_regcomp" != "xyes"; then
             if test "$wxUSE_REGEX" = "sys" ; then
@@ -2577,7 +2664,7 @@ if test "$wxUSE_ZLIB" != "no" ; then
             )
             dnl If the test above did not come up with a value (e.g. cross
             dnl compiling) then this should give a definitive answer
-            AC_CHECK_HEADER(zlib.h)
+            AC_CHECK_HEADER(zlib.h,,, [ ])
 
             system_zlib_h_ok=$ac_cv_header_zlib_h
         fi
@@ -2648,7 +2735,7 @@ if test "$wxUSE_LIBPNG" != "no" ; then
                     unset ac_cv_header_png_h
                 )]
             )
-            AC_CHECK_HEADER(png.h)
+            AC_CHECK_HEADER(png.h,,, [ ])
 
             if test "$ac_cv_header_png_h" = "yes"; then
                 AC_CHECK_LIB(png, png_check_sig, PNG_LINK=" -lpng -lz", , [-lz -lm])
@@ -2720,6 +2807,30 @@ if test "$wxUSE_LIBJPEG" != "no" ; then
             else
                 dnl we are using the system library
                 wxUSE_LIBJPEG=sys
+
+                if test "$wxUSE_MSW" = 1; then
+                    dnl boolean is defined by the jpeg headers and also by the
+                    dnl Windows headers of some compilers. This type has been
+                    dnl renamed in the builtin, so it is only an issue when
+                    dnl using an external jpeg lib on Windows.
+                    AC_CHECK_TYPES(
+                        [boolean],
+                        [
+                            AC_CHECK_SIZEOF(
+                                [boolean],
+                                [],
+                                [
+                                    #undef HAVE_BOOLEAN
+                                    #include <stdio.h>
+                                    #include <jpeglib.h>
+                                ])
+                            AC_DEFINE_UNQUOTED(
+                                [wxHACK_BOOLEAN],
+                                [wxInt`expr 8 \* $ac_cv_sizeof_boolean`])
+                        ],
+                        [],
+                        [#include <windows.h>])
+                fi
             fi
         fi
     fi
@@ -2749,7 +2860,9 @@ if test "$wxUSE_LIBTIFF" != "no" ; then
                                          TIFF_LINK=" -ltiff",
                                          ,
                                          $TIFF_PREREQ_LINKS)
-                        ]
+                        ],
+                        [],
+                        [ ]
                        )
 
         if test "x$TIFF_LINK" = "x" ; then
@@ -2787,16 +2900,18 @@ if test "$wxUSE_EXPAT" != "no"; then
     AC_DEFINE(wxUSE_XML)
 
     if test "$wxUSE_EXPAT" = "sys" -o "$wxUSE_EXPAT" = "yes" ; then
-        AC_CHECK_HEADER([expat.h], [found_expat_h=1])
+        AC_CHECK_HEADER([expat.h], [found_expat_h=1],, [ ])
         if test "x$found_expat_h" = "x1"; then
             dnl Expat 1.95.6 comes with broken expat.h:
             AC_CACHE_CHECK([if expat.h is valid C++ header],
                 wx_cv_expat_is_not_broken,
                 [
+                AC_LANG_PUSH(C++)
                 AC_TRY_COMPILE([#include <expat.h>],[],
                     wx_cv_expat_is_not_broken=yes,
                     wx_cv_expat_is_not_broken=no
                 )
+                AC_LANG_POP()
                 ]
             )
             if test "$wx_cv_expat_is_not_broken" = "yes" ; then
@@ -2827,7 +2942,7 @@ dnl Check for libmspack
 dnl ------------------------------------------------------------------------
 
 if test "$wxUSE_LIBMSPACK" != "no"; then
-    AC_CHECK_HEADER([mspack.h], [found_mspack_h=1])
+    AC_CHECK_HEADER([mspack.h], [found_mspack_h=1],, [ ])
     if test "x$found_mspack_h" = "x1"; then
         AC_CHECK_LIB(mspack, mspack_create_chm_decompressor,
                      MSPACK_LINK=" -lmspack")
@@ -2856,11 +2971,12 @@ WIDGET_SET=
 dnl are we building for a win32 target environment?
 dnl If so, setup common stuff needed for both GUI and Base libs.
 if test "$USE_WIN32" = 1 ; then
-    AC_CHECK_HEADERS(w32api.h)
-    AC_CHECK_HEADER(windows.h, [],
+    AC_CHECK_HEADER(w32api.h,,, [ ])
+    AC_CHECK_HEADER(windows.h,,
     [
         AC_MSG_ERROR(please set CFLAGS to contain the location of windows.h)
-    ])
+    ],
+    [ ])
 
     dnl --- FIXME: This is still a somewhat random list of libs,
     dnl ---        some of them should probably be included conditionally.
@@ -2898,14 +3014,8 @@ if test "$USE_WIN32" = 1 ; then
     dnl install Win32-specific files in "make install"
     WIN32INSTALL=win32install
 
-    dnl the jpeg header jmorecfg.h delcares the type boolean, which conflicts
-    dnl on systems which declare it in the system headers. If HAVE_BOOLEAN is
-    dnl defined then jmorecfg.h doesn't declare it, so checking for it here
-    dnl solves the problem.
-    AC_CHECK_TYPES(boolean, [], [], [#include <windows.h>])
-
     dnl pbt.h is missing on Wine at least
-    AC_CHECK_HEADERS(pbt.h, [], [AC_DEFINE(NEED_PBT_H)])
+    AC_CHECK_HEADER(pbt.h,, [AC_DEFINE(NEED_PBT_H)], [ ])
 fi
 
 if test "$wxUSE_GUI" = "yes"; then
@@ -2928,7 +3038,7 @@ if test "$wxUSE_GUI" = "yes"; then
             wxUSE_DRAG_AND_DROP=no
         fi
         if test "$wxUSE_DRAGIMAGE" = "yes"; then
-            AC_MSG_WARN([Drag Image and DandD not supported under wxCocoa yet, disabled])
+            AC_MSG_WARN([wxDragImage not supported under wxCocoa yet, disabled])
             wxUSE_DRAGIMAGE=no
         fi
     fi
@@ -2946,8 +3056,6 @@ if test "$wxUSE_GUI" = "yes"; then
 
     if test "$wxUSE_GTK" = 1; then
         dnl GTK+ test program must be compiled with C compiler
-        AC_LANG_PUSH(C)
-
         AC_MSG_CHECKING([for GTK+ version])
 
         gtk_version_cached=1
@@ -3058,45 +3166,70 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                            [AC_DEFINE(NEED_GTK_ICON_SIZE_LOOKUP)],
                            [#include <gtk/gtk.h>])
 
-            dnl test if we have at least GTK+ 2.6:
-            AC_MSG_CHECKING([if GTK+ is version >= 2.6])
+
+            dnl test if we have at least GTK+ 2.10:
+            AC_MSG_CHECKING([if GTK+ is version >= 2.10])
             AC_TRY_COMPILE([
                             #include <gtk/gtk.h>
                            ],
                            [
-                            #if !GTK_CHECK_VERSION(2,6,0)
-                            Not GTK+ 2.6
+                            #if !GTK_CHECK_VERSION(2,10,0)
+                            Not GTK+ 2.10
                             #endif
                            ],
                            [
+                            AC_DEFINE(__WXGTK210__)
                             AC_DEFINE(__WXGTK26__)
                             AC_DEFINE(__WXGTK24__)
                             AC_MSG_RESULT([yes])
-                            ac_wxgtk26=1
+                            ac_wxgtk210=1
                            ],
                            [
                             AC_MSG_RESULT([no])
-                            ac_wxgtk26=0
+                            ac_wxgtk210=0
                            ])
 
+            if test "$ac_wxgtk210" = 0; then
+                dnl test if we have at least GTK+ 2.6:
+                AC_MSG_CHECKING([if GTK+ is version >= 2.6])
+                AC_TRY_COMPILE([
+                                #include <gtk/gtk.h>
+                            ],
+                            [
+                                #if !GTK_CHECK_VERSION(2,6,0)
+                                Not GTK+ 2.6
+                                #endif
+                            ],
+                            [
+                                AC_DEFINE(__WXGTK26__)
+                                AC_DEFINE(__WXGTK24__)
+                                AC_MSG_RESULT([yes])
+                                ac_wxgtk26=1
+                            ],
+                            [
+                                AC_MSG_RESULT([no])
+                                ac_wxgtk26=0
+                            ])
+            fi
+
             if test "$ac_wxgtk26" = 0; then
-            dnl test if we have at least GTK+ 2.4:
-            AC_MSG_CHECKING([if GTK+ is version >= 2.4])
-            AC_TRY_COMPILE([
-                            #include <gtk/gtk.h>
-                           ],
-                           [
-                            #if !GTK_CHECK_VERSION(2,4,0)
-                            Not GTK+ 2.4
-                            #endif
-                           ],
-                           [
-                            AC_DEFINE(__WXGTK24__)
-                            AC_MSG_RESULT([yes])
-                           ],
-                           [
-                            AC_MSG_RESULT([no])
-                           ])
+                dnl test if we have at least GTK+ 2.4:
+                AC_MSG_CHECKING([if GTK+ is version >= 2.4])
+                AC_TRY_COMPILE([
+                                #include <gtk/gtk.h>
+                            ],
+                            [
+                                #if !GTK_CHECK_VERSION(2,4,0)
+                                Not GTK+ 2.4
+                                #endif
+                            ],
+                            [
+                                AC_DEFINE(__WXGTK24__)
+                                AC_MSG_RESULT([yes])
+                            ],
+                            [
+                                AC_MSG_RESULT([no])
+                            ])
             fi
 
             CFLAGS="$save_CFLAGS"
@@ -3109,14 +3242,12 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
 
             dnl test for XIM support in libgdk
             AC_CHECK_LIB(gdk, gdk_im_open, AC_DEFINE(HAVE_XIM))
-        fi
-
-        AC_LANG_POP
 
-        dnl we need poll() in src/gtk/app.cpp (we know that Darwin doesn't
-        dnl have it but we do the check for the others)
-        if test "$USE_DARWIN" != 1; then
-            AC_CHECK_FUNCS(poll)
+            dnl we need poll() in src/gtk1/app.cpp (we know that Darwin doesn't
+            dnl have it but we do the check for the others)
+            if test "$USE_DARWIN" != 1; then
+                AC_CHECK_FUNCS(poll)
+            fi
         fi
 
         TOOLKIT_INCLUDE="$wx_cv_cflags_gtk"
@@ -3225,7 +3356,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
        PKG_PROG_PKG_CONFIG()
 
        PKG_CHECK_MODULES(DIRECTFB,
-                         [directfb >= 0.9.22],
+                         [directfb >= 0.9.23],
                          [
                            wxUSE_UNIVERSAL="yes"
                            TOOLKIT_INCLUDE="$DIRECTFB_CFLAGS"
@@ -3304,6 +3435,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
 
             PKG_CHECK_MODULES(PANGOX, pangox,
                 [
+                    CFLAGS="$PANGOX_CFLAGS $CFLAGS"
                     CXXFLAGS="$PANGOX_CFLAGS $CXXFLAGS"
                     GUI_TK_LIBRARY="$GUI_TK_LIBRARY $PANGOX_LIBS"
                 ],
@@ -3313,6 +3445,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
             )
             PKG_CHECK_MODULES(PANGOFT2, pangoft2,
                 [
+                    CFLAGS="$PANGOFT2_CFLAGS $CFLAGS"
                     CXXFLAGS="$PANGOFT2_CFLAGS $CXXFLAGS"
                     GUI_TK_LIBRARY="$GUI_TK_LIBRARY $PANGOFT2_LIBS"
                 ],
@@ -3324,6 +3457,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
             PKG_CHECK_MODULES(PANGOXFT, pangoxft,
                 [
                     AC_DEFINE(HAVE_PANGO_XFT)
+                    CFLAGS="$PANGOXFT_CFLAGS $CFLAGS"
                     CXXFLAGS="$PANGOXFT_CFLAGS $CXXFLAGS"
                     GUI_TK_LIBRARY="$GUI_TK_LIBRARY $PANGOXFT_LIBS"
                 ],
@@ -3331,12 +3465,9 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                     AC_MSG_WARN([pangoxft library not found, library will be compiled without anti-aliasing support])
                 ]
             )
-            save_CXXFLAGS="$CXXFLAGS"
             save_LIBS="$LIBS"
-            CXXFLAGS="$PANGOX_CFLAGS $CXXFLAGS"
             LIBS="$LIBS $PANGOX_LIBS"
             AC_CHECK_FUNCS([pango_font_family_is_monospace])
-            CXXFLAGS="$save_CXXFLAGS"
             LIBS="$save_LIBS"
         fi
 
@@ -3366,8 +3497,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
             WX_INCLUDE_PATH_EXIST($ac_find_includes, $TOOLKIT_INCLUDE)
             TOOLKIT_INCLUDE="$TOOLKIT_INCLUDE$ac_path_to_include"
         else
-            save_CXXFLAGS=$CXXFLAGS
-            CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
+            save_CFLAGS=$CFLAGS
+            CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
 
             AC_TRY_COMPILE(
                 [
@@ -3387,7 +3518,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                 ]
             )
 
-            CXXFLAGS=$save_CXXFLAGS
+            CFLAGS=$save_CFLAGS
         fi
 
 
@@ -3403,8 +3534,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
             dnl it might happen that we found headers in one of the standard
             dnl paths but the libs are elsewhere but still in default (linker)
             dnl path -- try to compile a test program to check for this
-            save_CXXFLAGS=$CXXFLAGS
-            CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
+            save_CFLAGS=$CFLAGS
+            CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
             save_LIBS="$LIBS"
             LIBS="$GUI_TK_LIBRARY -lXm -lXmu -lXext -lX11"
 
@@ -3426,7 +3557,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                 ]
             )
 
-            CXXFLAGS=$save_CXXFLAGS
+            CFLAGS=$save_CFLAGS
             LIBS="$save_LIBS"
         fi
 
@@ -3440,8 +3571,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                     if test "$libs_found" = "0"; then
                         save_LIBS="$LIBS"
                         LIBS="$GUI_TK_LIBRARY -lXm ${libp} -lXmu -lXext -lXt${libsm_ice} -lX11"
-                        save_CXXFLAGS=$CXXFLAGS
-                        CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
+                        save_CFLAGS=$CFLAGS
+                        CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
 
                         AC_TRY_LINK(
                             [
@@ -3464,7 +3595,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                         )
 
                         LIBS="$save_LIBS"
-                        CXXFLAGS=$save_CXXFLAGS
+                        CFLAGS=$save_CFLAGS
                     fi
                 done
             fi
@@ -3479,8 +3610,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
         dnl elsewhere
         AC_CHECK_LIB(Sgm, [SgCreateList], [libsgm_link=" -lSgm"])
 
-        save_CXXFLAGS=$CXXFLAGS
-        CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
+        save_CFLAGS=$CFLAGS
+        CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
 
         AC_CACHE_CHECK([for Motif 2],
             wx_cv_lib_motif2,
@@ -3519,7 +3650,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
             AC_DEFINE(__WXLESSTIF__,0)
         fi
 
-        CXXFLAGS=$save_CXXFLAGS
+        CFLAGS=$save_CFLAGS
 
         GUI_TK_LIBRARY="$GUI_TK_LIBRARY${libsgm_link} -lXm${libp_link} -lXmu -lXext -lXt${libsm_ice_link} -lX11"
         TOOLKIT=MOTIF
@@ -3540,8 +3671,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                 AC_CACHE_CHECK([for X11/xpm.h],
                     wx_cv_x11_xpm_h,
                     [
-                        save_CXXFLAGS=$CXXFLAGS
-                        CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
+                        save_CFLAGS=$CFLAGS
+                        CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
 
                         AC_TRY_COMPILE(
                             [
@@ -3555,7 +3686,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                             wx_cv_x11_xpm_h=no
                         )
 
-                        CXXFLAGS=$save_CXXFLAGS
+                        CFLAGS=$save_CFLAGS
                     ]
                 )
 
@@ -3578,8 +3709,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                      [], [$GUI_TK_LIBRARY -lX11])
 
         if test "$wxHAVE_XEXT_LIB" = 1; then
-            save_CXXFLAGS="$CXXFLAGS"
-            CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
+            save_CFLAGS="$CFLAGS"
+            CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
 
             AC_MSG_CHECKING([for X11/extensions/shape.h])
             AC_TRY_COMPILE([
@@ -3598,7 +3729,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                            [
                             AC_MSG_RESULT([not found])
                            ])
-            CXXFLAGS="$save_CXXFLAGS"
+            CFLAGS="$save_CFLAGS"
 
         fi
     fi
@@ -3702,8 +3833,8 @@ dnl do this after test for X11 above so that we have a chance of finding Xlib.h
 if test "$wxUSE_GUI" = "yes"; then
     if test "$wxUSE_UNIX" = "yes" -a "$wxUSE_PM" != 1; then
         dnl defines HAVE_X11_XKBLIB_H
-        AC_CHECK_HEADERS(X11/Xlib.h)
-        AC_CHECK_HEADERS([X11/XKBlib.h], [], [],
+        AC_CHECK_HEADER(X11/Xlib.h,,, [ ])
+        AC_CHECK_HEADER([X11/XKBlib.h],,,
                          [
                           #if HAVE_X11_XLIB_H
                             #include <X11/Xlib.h>
@@ -3727,7 +3858,7 @@ if test "$TOOLKIT" != "MSW" ; then
         dnl This is not ideal we really ough to use the unixodbc-config
         dnl  or iodbc-config if they exist.
 
-        AC_CHECK_HEADER([sql.h], [found_sql_h=1])
+        AC_CHECK_HEADER([sql.h], [found_sql_h=1],, [ ])
         if test "x$found_sql_h" = "x1" ; then
             AC_CHECK_LIB(iodbc, SQLAllocEnv, ODBC_LINK=" -liodbc",
             [
@@ -3786,7 +3917,7 @@ dnl ---------------------------------------------------------------------------
             WX_PATH_FIND_LIBRARIES([$SEARCH_LIB],Xxf86vm)
             if test "$ac_find_libraries" != "" ; then
                 AC_MSG_RESULT([yes])
-                AC_CHECK_HEADERS([X11/extensions/xf86vmode.h],
+                AC_CHECK_HEADER([X11/extensions/xf86vmode.h],
                                  [
                                   GUI_TK_LIBRARY="$GUI_TK_LIBRARY -lXxf86vm"
                                  ],
@@ -3809,7 +3940,7 @@ dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
 dnl DirectDraw for MSW - optionally used by WxDisplay.
 dnl ---------------------------------------------------------------------------
-        AC_CHECK_HEADERS([ddraw.h], [], [], [#include <windows.h>])
+        AC_CHECK_HEADER([ddraw.h], [], [], [#include <windows.h>])
     fi
 fi
 
@@ -3844,30 +3975,34 @@ dnl ---------------------------------------------------------------------------
 
 USE_OPENGL=0
 if test "$wxUSE_OPENGL" = "yes"; then
-    if test "$wxUSE_MAC" = 1 -o "$wxUSE_COCOA" = "1"; then
+    if test "$wxUSE_MGL" = 1 -o "$wxUSE_DFB" = "1"; then
+        AC_MSG_WARN([wxGLCanvas not implemented for this port, library will be compiled without it.])
+        wxUSE_OPENGL="no"
+    elif test "$wxUSE_MAC" = 1 -o "$wxUSE_COCOA" = "1"; then
         OPENGL_LIBS="-framework OpenGL -framework AGL"
     elif test "$wxUSE_MSW" = 1; then
         OPENGL_LIBS="-lopengl32 -lglu32"
     else
-        dnl David Elliott: Without this snippet AC_CHECK_HEADER fails to find
-        dnl GL/gl.h on Mac OS X where it is located in
-        dnl /usr/X11R6/include/GL/gl.h:
-
-        WX_PATH_FIND_INCLUDES($SEARCH_INCLUDE, GL/gl.h)
+        dnl adjust CPPFLAGS to include GL/gl.h location if necessary
+        dnl (/opt/graphics/OpenGL is for HP-UX systems, bug 925307)
+        AC_MSG_CHECKING([for OpenGL headers])
+        WX_PATH_FIND_INCLUDES([$SEARCH_INCLUDE /opt/graphics/OpenGL/include], GL/gl.h)
         if test "$ac_find_includes" != "" ; then
             AC_MSG_RESULT(found in $ac_find_includes)
             WX_INCLUDE_PATH_EXIST($ac_find_includes, $CPPFLAGS)
             CPPFLAGS="$ac_path_to_include $CPPFLAGS"
+        else
+            AC_MSG_RESULT([not found])
         fi
 
-        AC_CHECK_HEADER(GL/gl.h,
-            [
+        AC_CHECK_HEADER(GL/gl.h, [
+            AC_CHECK_HEADER(GL/glu.h, [
                 found_gl=0
 
                 AC_MSG_CHECKING([for -lGL])
-                WX_PATH_FIND_LIBRARIES([$SEARCH_LIB],GL)
+                WX_PATH_FIND_LIBRARIES([$SEARCH_LIB /opt/graphics/OpenGL/lib],GL)
                 if test "$ac_find_libraries" != "" ; then
-                    AC_MSG_RESULT([yes])
+                    AC_MSG_RESULT([found in $ac_find_libraries])
 
                     WX_LINK_PATH_EXIST([$ac_find_libraries],[$LDFLAGS])
                     if test "$ac_path_to_link" != " -L/usr/lib" ; then
@@ -3909,6 +4044,9 @@ if test "$wxUSE_OPENGL" = "yes"; then
                     fi
                 fi
             ])
+        ],
+        [],
+        [ ])
 
         if test "x$OPENGL_LIBS" = "x"; then
             dnl it should be an error and not a warning because OpenGL is not on
@@ -3948,11 +4086,11 @@ fi
 if test "$wxUSE_SHARED" = "yes"; then
 
     dnl use versioned symbols if available on the platform
-    WX_VERSIONED_SYMBOLS([\$(top_builddir)version-script])
+    WX_VERSIONED_SYMBOLS([\$(wx_top_builddir)/version-script])
 
     case "${host}" in
       *-*-linux* | *-*-gnu* )
-        SAMPLES_RPATH_FLAG="-Wl,-rpath,\$(top_builddir)lib"
+        SAMPLES_RPATH_FLAG="-Wl,-rpath,\$(wx_top_builddir)/lib"
         WXCONFIG_RPATH="-Wl,-rpath,\$libdir"
         ;;
 
@@ -3971,7 +4109,7 @@ if test "$wxUSE_SHARED" = "yes"; then
                 [],[],
                 [
                     AC_MSG_RESULT([yes])
-                    SAMPLES_RPATH_FLAG="-Wl,-rpath,\$(top_builddir)lib"
+                    SAMPLES_RPATH_FLAG="-Wl,-rpath,\$(wx_top_builddir)/lib"
                     WXCONFIG_RPATH="-Wl,-rpath,\$libdir"
                 ],[
                     AC_MSG_RESULT([no])
@@ -3981,7 +4119,7 @@ if test "$wxUSE_SHARED" = "yes"; then
                         [],[],
                         [
                             AC_MSG_RESULT([yes])
-                            SAMPLES_RPATH_FLAG="-Wl,-R,\$(top_builddir)lib"
+                            SAMPLES_RPATH_FLAG="-Wl,-R,\$(wx_top_builddir)/lib"
                             WXCONFIG_RPATH="-Wl,-R,\$libdir"
                         ],[
                             AC_MSG_RESULT([no])
@@ -3989,7 +4127,7 @@ if test "$wxUSE_SHARED" = "yes"; then
                 ])
             LDFLAGS="$saveLdflags"
         else
-            SAMPLES_RPATH_FLAG="-R\$(top_builddir)lib"
+            SAMPLES_RPATH_FLAG="-R\$(wx_top_builddir)/lib"
             WXCONFIG_RPATH="-R\$libdir"
         fi
       ;;
@@ -3997,7 +4135,7 @@ if test "$wxUSE_SHARED" = "yes"; then
       *-*-darwin* )
         install_name_tool=`which install_name_tool`
         if test "$install_name_tool" -a -x "$install_name_tool"; then
-            SAMPLES_RPATH_POSTLINK="\$(top_builddir)change-install-names \$(LIBDIRNAME) \$(prefix) \$@"
+            SAMPLES_RPATH_POSTLINK="\$(wx_top_builddir)/change-install-names \$(LIBDIRNAME) \$(prefix) \$@"
             cat <<EOF >change-install-names
 #!/bin/sh
 libnames=\`cd \${1} ; ls -1 | grep '\.[[0-9]][[0-9]]*\.dylib\$'\`
@@ -4018,7 +4156,7 @@ EOF
         ;;
 
       *-*-hpux* )
-        SAMPLES_RPATH_FLAG="-Wl,+b,\$(top_builddir)lib"
+        SAMPLES_RPATH_FLAG="-Wl,+b,\$(wx_top_builddir)/lib"
         WXCONFIG_RPATH="-Wl,+b,\$libdir"
         ;;
 
@@ -4126,7 +4264,7 @@ if test "$wxUSE_MAC" = 1 -o "$wxUSE_COCOA" = 1; then
     WX_RESOURCES_MACOSX_DATA="libwx_${TOOLCHAIN_NAME}.${wx_release_number}.rsrc"
 
     dnl add the resources target for wxMac
-    LIBWXMACRES="\$(top_builddir)lib/${WX_RESOURCES_MACOSX_ASCII}"
+    LIBWXMACRES="\$(wx_top_builddir)/lib/${WX_RESOURCES_MACOSX_ASCII}"
 
     AC_CHECK_PROG(REZ, Rez, Rez, /Developer/Tools/Rez)
     AC_CHECK_PROG(DEREZ, DeRez, DeRez, /Developer/Tools/DeRez)
@@ -4183,6 +4321,7 @@ AC_CHECK_TYPES(ssize_t)
 
 dnl check what exactly size_t is on this machine - this is necessary to avoid
 dnl ambiguous overloads in several places, notably wx/string.h and wx/array.h
+AC_LANG_PUSH(C++) dnl tests below use overloaded functions and so need C++
 AC_CACHE_CHECK([if size_t is unsigned int],
     wx_cv_size_t_is_uint,
     [
@@ -4229,6 +4368,8 @@ else
     fi
 fi
 
+AC_LANG_POP() dnl C++
+
 dnl ---------------------------------------------------------------------------
 dnl Checks for structures
 dnl ---------------------------------------------------------------------------
@@ -4311,6 +4452,8 @@ dnl stupidly, provides a dummy function declaration inside its extension)
 dnl succeeds, even with C++ compiler, but the compilation of wxWidgets fails
 dnl
 dnl so we first check if the function is in the library
+dnl
+dnl FIXME: replace this mess with WX_CHECK_FUNCS()
 AC_CHECK_FUNCS(snprintf vsnprintf)
 
 if test "$ac_cv_func_vsnprintf" = "yes"; then
@@ -4454,7 +4597,7 @@ if test "$ac_cv_func_snprintf" = "yes"; then
                         int main (void)
                         {
                             char buffer[128];
-                            snprintf (buffer, 128, "%2\$d %3\$d %1\$d", 1, 2, 3);
+                            snprintf (buffer, 128, "%2$d %3$d %1$d", 1, 2, 3);
                             if (strcmp ("2 3 1", buffer) == 0)
                                 exit (0);
                             exit (1);
@@ -4512,8 +4655,21 @@ if test "$wxUSE_UNICODE" = yes; then
         fi
     fi
 
-    dnl also look if we have wide char IO functions
-    AC_CHECK_FUNCS(wputc wputchar putws fputws wprintf vswprintf)
+    dnl also look if we have wide char IO functions, notice that [f]putws are
+    dnl declared in special widec.h under Solaris
+    wchar_headers="#include <stdio.h>
+#include <wchar.h>"
+    case "${host}" in
+        *-*-solaris2* )
+            AC_CHECK_HEADER(widec.h,,, [AC_INCLUDES_DEFAULT()])
+            if test "$ac_cv_header_widec_h" = "yes"; then
+                wchar_headers="$wchar_headers
+#include <widec.h>"
+            fi
+    esac
+
+    WX_CHECK_FUNCS(wputc wputchar putws fputws wprintf vswprintf,,,
+                   [$wchar_headers])
 
     dnl MinGW has a vswprintf with a different prototype, and
     dnl a _vsnwprintf with the correct prototype, but AC_CHECK_FUNCS
@@ -4527,18 +4683,14 @@ if test "$wxUSE_UNICODE" = yes; then
 fi
 
 if test "x$ac_cv_header_fnmatch_h" = "xyes"; then
-    AC_CHECK_FUNCS(fnmatch)
+    WX_CHECK_FUNCS(fnmatch,,,[#include <fnmatch.h>])
 fi
 
 if test "$wxUSE_FILE" = "yes"; then
-    AC_CHECK_FUNCS(fsync)
-fi
-
-AC_CHECK_FUNCS(round)
-if test "$ac_cv_func_round" = yes; then
-    AC_CHECK_DECLS(round,,,[#include <math.h>])
+    WX_CHECK_FUNCS(fsync)
 fi
 
+WX_CHECK_FUNCS(round,,,[#include <math.h>])
 
 dnl the following tests are for Unix(like) systems only
 if test "$TOOLKIT" != "MSW"; then
@@ -4560,6 +4712,8 @@ if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes" -a "$wxUSE_UNIX" = "yes"; then
     if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes"; then
       AC_CACHE_CHECK([for sa_handler type], wx_cv_type_sa_handler,
       [
+        dnl C compiler happily compiles the code even if there is type mismatch
+        AC_LANG_PUSH(C++)
         AC_TRY_COMPILE([#include <signal.h>],
                      [
                         extern void testSigHandler(int);
@@ -4571,6 +4725,7 @@ if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes" -a "$wxUSE_UNIX" = "yes"; then
                      ], [
                         wx_cv_type_sa_handler=void
                      ])
+        AC_LANG_POP()
       ])
 
       AC_DEFINE_UNQUOTED(wxTYPE_SA_HANDLER, $wx_cv_type_sa_handler)
@@ -4581,6 +4736,7 @@ dnl backtrace() and backtrace_symbols() for wxStackWalker
 if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
     AC_CACHE_CHECK([for backtrace() in <execinfo.h>], wx_cv_func_backtrace,
         [
+            AC_LANG_PUSH(C++)
             AC_TRY_COMPILE([#include <execinfo.h>],
                 [
                     void *trace[1];
@@ -4592,6 +4748,7 @@ if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
                 wx_cv_func_backtrace=yes,
                 wx_cv_func_backtrace=no
             )
+            AC_LANG_POP()
         ]
     )
 
@@ -4602,6 +4759,7 @@ if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
     else
         AC_CACHE_CHECK([for __cxa_demangle() in <cxxabi.h>], wx_cv_func_cxa_demangle,
             [
+                AC_LANG_PUSH(C++)
                 AC_TRY_LINK([#include <cxxabi.h>],
                     [
                         int rc;
@@ -4610,6 +4768,7 @@ if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
                     wx_cv_func_cxa_demangle=yes,
                     wx_cv_func_cxa_demangle=no
                 )
+                AC_LANG_POP()
             ]
         )
 
@@ -4656,6 +4815,7 @@ AC_CACHE_CHECK(for statfs, wx_cv_func_statfs,
 if test "$wx_cv_func_statfs" = "yes"; then
     dnl check whether we have its dcelaration too: some systems (AIX 4) lack it
     AC_CACHE_CHECK(for statfs declaration, wx_cv_func_statfs_decl,
+        AC_LANG_PUSH(C++)
         AC_TRY_COMPILE(
             [
                  #if defined(__BSD__)
@@ -4672,6 +4832,7 @@ if test "$wx_cv_func_statfs" = "yes"; then
             wx_cv_func_statfs_decl=yes,
             wx_cv_func_statfs_decl=no
         )
+        AC_LANG_POP()
     )
 
     if test "$wx_cv_func_statfs_decl" = "yes"; then
@@ -4704,6 +4865,7 @@ else
         dnl for this check C++ compiler has to be used as passing incompatible
         dnl pointers is just a warning and not an error in C
         AC_CACHE_CHECK(for statvfs argument type, wx_cv_type_statvfs_t,
+            AC_LANG_PUSH(C++)
             AC_TRY_COMPILE(
                 [
                     #include <sys/statvfs.h>
@@ -4735,6 +4897,7 @@ else
                     )
                 ]
             )
+            AC_LANG_POP()
         )
 
         if test "$wx_cv_type_statvfs_t" != "unknown"; then
@@ -4796,9 +4959,8 @@ if test "$HAVE_SOME_SLEEP_FUNC" != 1; then
                     POSIX4_LINK=" -lposix4"
                 ],
                 [
-                    AC_CHECK_FUNCS(usleep,
-                        AC_DEFINE(HAVE_USLEEP),
-                        AC_MSG_WARN([wxSleep() function will not work])
+                    WX_CHECK_FUNCS(usleep,,
+                                    AC_MSG_WARN([wxSleep() function will not work])
                     )
                 ]
             )
@@ -4807,7 +4969,10 @@ if test "$HAVE_SOME_SLEEP_FUNC" != 1; then
 fi
 
 dnl check for uname (POSIX) and gethostname (BSD)
-AC_CHECK_FUNCS(uname gethostname, break)
+WX_CHECK_FUNCS(uname,,,[#include <sys/utsname.h>])
+if test "$wx_cv_func_uname" != yes; then
+    WX_CHECK_FUNCS(gethostname)  
+fi
 
 WX_CHECK_FUNCS(strtok_r, [], [], [#define _REENTRANT])
 
@@ -4859,9 +5024,11 @@ dnl ------------------------------------------
 dnl Check for ESD:
 EXTRALIBS_ESD=
 AC_CHECK_LIB(esd, esd_close, [
-    AC_CHECK_HEADERS([esd.h], [
+    AC_CHECK_HEADER([esd.h], [
     EXTRALIBS_ESD="-lesd"
-  ])
+  ],
+  [],
+  [ ])
 ])
 AC_SUBST(EXTRALIBS_ESD)
 
@@ -4896,14 +5063,14 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
 
     dnl the code below:
     dnl
-    dnl   defines THREADS_LINK and THREADS_CXXFLAGS which are the options
+    dnl   defines THREADS_LINK and THREADS_CFLAGS which are the options
     dnl   necessary to build the MT programs for the linker and compiler
     dnl   respectively
     dnl
     dnl   sets wxUSE_THREADS=1 if thread support is activated
 
     THREADS_LINK=
-    THREADS_CXXFLAGS=
+    THREADS_CFLAGS=
 
     if test "$wxUSE_THREADS" = "yes" ; then
         if test "$USE_BEOS" = 1; then
@@ -4994,7 +5161,7 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
 
                 -*)
                     AC_MSG_CHECKING([whether pthreads work with $flag])
-                    THREADS_CXXFLAGS="$flag"
+                    THREADS_CFLAGS="$flag"
                     ;;
 
                 *)
@@ -5004,16 +5171,16 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
               esac
 
               save_LIBS="$LIBS"
-              save_CXXFLAGS="$CXXFLAGS"
+              save_CFLAGS="$CFLAGS"
               LIBS="$THREADS_LINK $LIBS"
-              CXXFLAGS="$THREADS_CXXFLAGS $CXXFLAGS"
+              CFLAGS="$THREADS_CFLAGS $CFLAGS"
 
               AC_TRY_LINK([#include <pthread.h>],
                           [pthread_create(0,0,0,0);],
                           THREADS_OK=yes)
 
               LIBS="$save_LIBS"
-              CXXFLAGS="$save_CXXFLAGS"
+              CFLAGS="$save_CFLAGS"
 
               AC_MSG_RESULT($THREADS_OK)
               if test "x$THREADS_OK" = "xyes"; then
@@ -5021,7 +5188,7 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
               fi
 
               THREADS_LINK=""
-              THREADS_CXXFLAGS=""
+              THREADS_CFLAGS=""
       done
 
       if test "x$THREADS_OK" != "xyes"; then
@@ -5030,7 +5197,7 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
       else
           dnl yes, these special compiler flags should be used with the
           dnl linker as well
-          LDFLAGS="$THREADS_CXXFLAGS $LDFLAGS"
+          LDFLAGS="$THREADS_CFLAGS $LDFLAGS"
           LIBS="$THREADS_LINK $LIBS"
 
           AC_MSG_CHECKING([if more special flags are required for pthreads])
@@ -5062,11 +5229,11 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
           esac
           AC_MSG_RESULT(${flag})
           if test "x$flag" != xno; then
-              THREADS_CXXFLAGS="$THREADS_CXXFLAGS $flag"
+              THREADS_CFLAGS="$THREADS_CFLAGS $flag"
           fi
 
           dnl don't add these options to CPPFLAGS as cpp might not know them
-          WXCONFIG_CXXFLAGS="$WXCONFIG_CXXFLAGS $THREADS_CXXFLAGS"
+          WXCONFIG_CFLAGS="$WXCONFIG_CFLAGS $THREADS_CFLAGS"
       fi
     fi
 
@@ -5096,7 +5263,7 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
         AC_DEFINE(wxHAVE_PTHREAD_CLEANUP)
       fi
 
-      AC_CHECK_HEADERS(sched.h)
+      AC_CHECK_HEADER(sched.h,,, [AC_INCLUDES_DEFAULT()])
       if test "$ac_cv_header_sched_h" = "yes"; then
           AC_CHECK_FUNC(sched_yield,
             AC_DEFINE(HAVE_SCHED_YIELD),
@@ -5141,6 +5308,10 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
                     AC_DEFINE(HAVE_PTHREAD_CANCEL),
                     AC_MSG_WARN([wxThread::Kill() will not work properly]))
 
+      AC_CHECK_FUNC(pthread_mutex_timedlock,
+                    AC_DEFINE(HAVE_PTHREAD_MUTEX_TIMEDLOCK),
+                    AC_MSG_WARN([wxMutex::LockTimeout() will not work]))
+
       AC_CHECK_FUNC(pthread_attr_setstacksize,
                     AC_DEFINE(HAVE_PTHREAD_ATTR_SETSTACKSIZE))
 
@@ -5217,8 +5388,8 @@ else
             AC_CACHE_CHECK([if compiler supports -mthreads],
                 wx_cv_cflags_mthread,
                 [
-                    CXXFLAGS_OLD="$CXXFLAGS"
-                    CXXFLAGS="-mthreads $CXXFLAGS"
+                    CFLAGS_OLD="$CFLAGS"
+                    CFLAGS="-mthreads $CFLAGS"
                     AC_TRY_COMPILE([], [],
                         wx_cv_cflags_mthread=yes,
                         wx_cv_cflags_mthread=no
@@ -5228,16 +5399,15 @@ else
 
             if test "$wx_cv_cflags_mthread" = "yes"; then
                 dnl it does, use it
-                WXCONFIG_CXXFLAGS="$WXCONFIG_CXXFLAGS -mthreads"
+                WXCONFIG_CFLAGS="$WXCONFIG_CFLAGS -mthreads"
                 LDFLAGS="$LDFLAGS -mthreads"
             else
                 dnl it doesn't
-                CXXFLAGS="$CXXFLAGS_OLD"
+                CFLAGS="$CFLAGS_OLD"
             fi
         ;;
         *-pc-os2*emx )
             WXCONFIG_CFLAGS="$WXCONFIG_CFLAGS -Zmt -D__ST_MT_ERRNO__"
-            WXCONFIG_CXXFLAGS="$WXCONFIG_CXXFLAGS -Zmt -D__ST_MT_ERRNO__"
             LDFLAGS="$LDFLAGS -Zmt"
         ;;
       esac
@@ -5422,14 +5592,14 @@ dnl ---------------------------------------------------------------------------
 dnl compatibility level
 dnl ---------------------------------------------------------------------------
 
-if test "x$WXWIN_COMPATIBILITY_2_4" = "xyes"; then
-    AC_DEFINE(WXWIN_COMPATIBILITY_2_4)
+if test "x$WXWIN_COMPATIBILITY_2_6" = "xyes"; then
+    AC_DEFINE(WXWIN_COMPATIBILITY_2_6)
 
-    WXWIN_COMPATIBILITY_2_6="yes"
+    WXWIN_COMPATIBILITY_2_8="yes"
 fi
 
-if test "x$WXWIN_COMPATIBILITY_2_6" != "xno"; then
-    AC_DEFINE(WXWIN_COMPATIBILITY_2_6)
+if test "x$WXWIN_COMPATIBILITY_2_8" != "xno"; then
+    AC_DEFINE(WXWIN_COMPATIBILITY_2_8)
 fi
 
 dnl ---------------------------------------------------------------------------
@@ -5581,37 +5751,40 @@ fi
 dnl Unix implementation needs additional checks because audio support
 dnl comes in many favours:
 if test "$USE_UNIX" = "1" ; then
-    dnl it's not enough to check for just the header because OSS under NetBSD
-    dnl redefines ioctl as oss_ioctrl inside it and so we also need to test
-    dnl whether we need -lossaudio at link-time
-    AC_CACHE_CHECK([for SNDCTL_DSP_SPEED in sys/soundcard.h], ac_cv_header_sys_soundcard, [
-        AC_TRY_LINK([
-                #include <sys/ioctl.h>
-                #include <sys/soundcard.h>
-            ],
-            [
-                ioctl(0, SNDCTL_DSP_SPEED, 0);
-            ],
-            ac_cv_header_sys_soundcard=yes,
-            [
-                saveLibs="$LIBS"
-                LIBS="$saveLibs -lossaudio"
-                AC_TRY_LINK([
-                        #include <sys/ioctl.h>
-                        #include <sys/soundcard.h>
-                    ],
-                    [
-                        ioctl(0, SNDCTL_DSP_SPEED, 0);
-                    ],
-                    ac_cv_header_sys_soundcard=yes,
-                    [
-                        LIBS="$saveLibs"
-                        ac_cv_header_sys_soundcard=no
-                    ]
-                )
-            ]
-        )
-    ])
+    dnl mmedia doesn't compile with wxMGL, remove this if this is ever fixed
+    if test "$wxUSE_MGL" != 1; then
+        dnl it's not enough to check for just the header because OSS under NetBSD
+        dnl redefines ioctl as oss_ioctrl inside it and so we also need to test
+        dnl whether we need -lossaudio at link-time
+        AC_CACHE_CHECK([for SNDCTL_DSP_SPEED in sys/soundcard.h], ac_cv_header_sys_soundcard, [
+            AC_TRY_LINK([
+                    #include <sys/ioctl.h>
+                    #include <sys/soundcard.h>
+                ],
+                [
+                    ioctl(0, SNDCTL_DSP_SPEED, 0);
+                ],
+                ac_cv_header_sys_soundcard=yes,
+                [
+                    saveLibs="$LIBS"
+                    LIBS="$saveLibs -lossaudio"
+                    AC_TRY_LINK([
+                            #include <sys/ioctl.h>
+                            #include <sys/soundcard.h>
+                        ],
+                        [
+                            ioctl(0, SNDCTL_DSP_SPEED, 0);
+                        ],
+                        ac_cv_header_sys_soundcard=yes,
+                        [
+                            LIBS="$saveLibs"
+                            ac_cv_header_sys_soundcard=no
+                        ]
+                    )
+                ]
+            )
+        ])
+    fi
 
     if test "$ac_cv_header_sys_soundcard" = "yes"; then
         AC_DEFINE(HAVE_SYS_SOUNDCARD_H)
@@ -5619,6 +5792,7 @@ if test "$USE_UNIX" = "1" ; then
         DISABLED_CONTRIB="$DISABLED_CONTRIB mmedia"
     fi
 fi
+
 WITH_PLUGIN_SDL=0
 if test "$wxUSE_SOUND" = "yes"; then
   if test "$USE_UNIX" = "1" ; then
@@ -5626,6 +5800,7 @@ if test "$wxUSE_SOUND" = "yes"; then
       AM_PATH_SDL([1.2.0],
                   [
                     EXTRALIBS_SDL="$SDL_LIBS"
+                    CFLAGS="$SDL_CFLAGS $CFLAGS"
                     CXXFLAGS="$SDL_CFLAGS $CXXFLAGS"
                     AC_DEFINE(wxUSE_LIBSDL)
                   ],
@@ -5634,20 +5809,30 @@ if test "$wxUSE_SOUND" = "yes"; then
         WITH_PLUGIN_SDL=1
       fi
     fi
+  else
+    dnl wxMGL doesn't support sound under DOS, only under Unix
+    if test "$wxUSE_MGL" = 1; then
+        AC_MSG_WARN([wxSound not supported in MGL under DOS... disabled])
+        wxUSE_SOUND="no"
+    fi
   fi
+fi
 
+if test "$wxUSE_SOUND" = "yes"; then
   AC_DEFINE(wxUSE_SOUND)
   SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS sound"
 fi
 
 if test "$WXGTK20" = 1; then
+    PKG_PROG_PKG_CONFIG()
+
     if test "$wxUSE_PRINTING_ARCHITECTURE" = "yes" ; then
         if test "$wxUSE_LIBGNOMEPRINT" = "yes" ; then
 
                 PKG_CHECK_MODULES(LIBGNOMEPRINTUI,
                                   [libgnomeprintui-2.2 >= 2.8],
                     [
-dnl                     EXTRALIBS_GNOMEPRINT="$LIBGNOMEPRINTUI_LIBS"
+                        CFLAGS="$LIBGNOMEPRINTUI_CFLAGS $CFLAGS"
                         CXXFLAGS="$LIBGNOMEPRINTUI_CFLAGS $CXXFLAGS"
                         AC_DEFINE(wxUSE_LIBGNOMEPRINT)
                     ],
@@ -5658,16 +5843,14 @@ dnl                     EXTRALIBS_GNOMEPRINT="$LIBGNOMEPRINTUI_LIBS"
                 )
         fi
     fi
-fi
 
-if test "$WXGTK20" = 1; then
     if test "$wxUSE_MIMETYPE" = "yes" ; then
         if test "$wxUSE_LIBGNOMEVFS" = "yes" ; then
 
                 PKG_CHECK_MODULES(GNOMEVFS,
                                   [gnome-vfs-2.0 >= 2.0],
                     [
-dnl                     EXTRALIBS_GNOMEVFS="$LIBGNOMEVFS_LIBS"
+                        CFLAGS="$GNOMEVFS_CFLAGS $CFLAGS"
                         CXXFLAGS="$GNOMEVFS_CFLAGS $CXXFLAGS"
                         AC_DEFINE(wxUSE_LIBGNOMEVFS)
                     ],
@@ -5678,14 +5861,13 @@ dnl                     EXTRALIBS_GNOMEVFS="$LIBGNOMEVFS_LIBS"
                 )
         fi
     fi
-fi
 
-if test "$WXGTK20" = 1; then
     if test "$wxUSE_LIBHILDON" = "yes" ; then
-        PKG_CHECK_MODULES(HILDON, 
+        PKG_CHECK_MODULES(HILDON,
                           [hildon-lgpl >= 0.9],
             [
                 EXTRALIBS_HILDON="$HILDON_LIBS"
+                CFLAGS="$CFLAGS $HILDON_CFLAGS"
                 CXXFLAGS="$CXXFLAGS $HILDON_CFLAGS"
                 AC_DEFINE(wxUSE_LIBHILDON)
             ],
@@ -5717,17 +5899,10 @@ if test "$wxUSE_FFILE" = "yes"; then
   AC_DEFINE(wxUSE_FFILE)
 fi
 
-if test "$wxUSE_FILESYSTEM" = "yes"; then
-  AC_DEFINE(wxUSE_FILESYSTEM)
-fi
-
-if test "$wxUSE_FS_ZIP" = "yes"; then
-  AC_DEFINE(wxUSE_FS_ZIP)
-fi
-
 if test "$wxUSE_ARCHIVE_STREAMS" = "yes"; then
   if test "$wxUSE_STREAMS" != yes; then
     AC_MSG_WARN(wxArchive requires wxStreams... disabled)
+    wxUSE_ARCHIVE_STREAMS=no
   else
     AC_DEFINE(wxUSE_ARCHIVE_STREAMS)
   fi
@@ -5751,22 +5926,31 @@ if test "$wxUSE_TARSTREAM" = "yes"; then
   fi
 fi
 
-if test "$wxUSE_BACKINGFILE" = "yes"; then
+if test "$wxUSE_FILESYSTEM" = "yes"; then
   if test "$wxUSE_STREAMS" != yes -o \( "$wxUSE_FILE" != yes -a "$wxUSE_FFILE" != yes \); then
-    AC_MSG_WARN(wxBackingFile requires wxStreams and wxFile or wxFFile... disabled)
+    AC_MSG_WARN(wxFileSystem requires wxStreams and wxFile or wxFFile... disabled)
+    wxUSE_FILESYSTEM=no
   else
-    AC_DEFINE(wxUSE_BACKINGFILE)
+    AC_DEFINE(wxUSE_FILESYSTEM)
   fi
 fi
 
 if test "$wxUSE_FS_ARCHIVE" = "yes"; then
-  if test "$wxUSE_ARCHIVE_STREAMS" != yes -o "$wxUSE_BACKINGFILE" != yes; then
-    AC_MSG_WARN(wxArchiveFSHandler requires wxArchive and wxBackingFile... disabled)
+  if test "$wxUSE_FILESYSTEM" != yes -o "$wxUSE_ARCHIVE_STREAMS" != yes; then
+    AC_MSG_WARN(wxArchiveFSHandler requires wxArchive and wxFileSystem... disabled)
   else
     AC_DEFINE(wxUSE_FS_ARCHIVE)
   fi
 fi
 
+if test "$wxUSE_FS_ZIP" = "yes"; then
+  if test "$wxUSE_FS_ARCHIVE" != yes; then
+    AC_MSG_WARN(wxZipFSHandler requires wxArchiveFSHandler... disabled)
+  else
+    AC_DEFINE(wxUSE_FS_ZIP)
+  fi
+fi
+
 if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes"; then
   if test "$USE_UNIX" != 1; then
     AC_MSG_WARN([Catching fatal exceptions not currently supported on this system, wxApp::OnFatalException will not be called])
@@ -5886,10 +6070,12 @@ dnl ---------------------------------------------------------------------------
 
 if test "$wxUSE_DATETIME" = "yes"; then
     dnl check for strptime and for its declaration as some systems lack it
+    dnl FIXME: use WX_CHECK_FUNCS instead
     AC_CHECK_FUNCS(strptime)
     if test "$ac_cv_func_strptime" = "yes"; then
         AC_CACHE_CHECK([for strptime declaration], wx_cv_func_strptime_decl,
             [
+                AC_LANG_PUSH(C++)
                 AC_TRY_COMPILE(
                     [
                         #include <time.h>
@@ -5901,6 +6087,7 @@ if test "$wxUSE_DATETIME" = "yes"; then
                     wx_cv_func_strptime_decl=yes,
                     wx_cv_func_strptime_decl=no
                 )
+                AC_LANG_POP()
             ]
         )
     fi
@@ -5913,6 +6100,7 @@ if test "$wxUSE_DATETIME" = "yes"; then
     AC_CACHE_CHECK(for timezone variable in <time.h>,
                    wx_cv_var_timezone,
                    [
+                        AC_LANG_PUSH(C++)
                         AC_TRY_COMPILE(
                             [
                                 #include <time.h>
@@ -5958,6 +6146,7 @@ if test "$wxUSE_DATETIME" = "yes"; then
                                 )
                             ]
                         )
+                        AC_LANG_POP()
                    ]
     )
 
@@ -6082,6 +6271,7 @@ if test "$wxUSE_SOCKETS" = "yes" ; then
         AC_CACHE_CHECK([what is the type of the third argument of getsockname],
                        wx_cv_type_getsockname3,
             [
+                AC_LANG_PUSH(C++)
                 AC_TRY_COMPILE(
                     [
                         #include <sys/types.h>
@@ -6099,9 +6289,9 @@ if test "$wxUSE_SOCKETS" = "yes" ; then
                         dnl converting between incompatible pointer types, so
                         dnl try to use it to get the correct behaviour at
                         dnl least with gcc (otherwise we'd always use size_t)
-                        CXXFLAGS_OLD="$CXXFLAGS"
+                        CFLAGS_OLD="$CFLAGS"
                         if test "$GCC" = yes ; then
-                            CXXFLAGS="-Werror $CXXFLAGS"
+                            CFLAGS="-Werror $CFLAGS"
                         fi
 
                         AC_TRY_COMPILE(
@@ -6128,9 +6318,10 @@ if test "$wxUSE_SOCKETS" = "yes" ; then
                             )
                         )
 
-                        CXXFLAGS="$CXXFLAGS_OLD"
+                        CFLAGS="$CFLAGS_OLD"
                     ]
                 )
+                AC_LANG_POP()
             ])
 
         if test "$wx_cv_type_getsockname3" = "unknown"; then
@@ -6154,17 +6345,12 @@ if test "$wxUSE_SOCKETS" = "yes" ; then
                     ],
                     wx_cv_type_getsockopt5=socklen_t,
                     [
-                        dnl the compiler will compile the version with size_t
-                        dnl even if the real type of the last parameter is int
-                        dnl but it should give at least a warning about
-                        dnl converting between incompatible pointer types, so
-                        dnl try to use it to get the correct behaviour at
-                        dnl least with gcc (otherwise we'd always use size_t)
-                        CXXFLAGS_OLD="$CXXFLAGS"
-                        if test "$GCC" = yes ; then
-                            CXXFLAGS="-Werror $CXXFLAGS"
-                        fi
-
+                        dnl Note that the rules for compatibility of pointers
+                        dnl are somewhat different between C and C++, so code 
+                        dnl that fails in C++ may not even give a warning about
+                        dnl converting between incompatible pointer types in C.
+                        dnl So this test needs to be done in C++ mode.
+                        AC_LANG_PUSH(C++)
                         AC_TRY_COMPILE(
                             [
                                 #include <sys/types.h>
@@ -6188,8 +6374,7 @@ if test "$wxUSE_SOCKETS" = "yes" ; then
                                 wx_cv_type_getsockopt5=unknown
                             )
                         )
-
-                        CXXFLAGS="$CXXFLAGS_OLD"
+                        AC_LANG_POP()
                     ]
                 )
             ])
@@ -6268,18 +6453,29 @@ if test "$wxUSE_GUI" = "yes" -a "$wxUSE_JOYSTICK" = "yes"; then
         if test "$USE_DARWIN" = 1; then
             dnl check for a bug in the headers, some have bad setEventCallout
             AC_MSG_CHECKING([headers have declarations needed for joystick support])
+            AC_LANG_PUSH(C++)
             AC_TRY_COMPILE( [ #include <IOKit/hid/IOHIDLib.h> ],
                             [ IOHIDQueueInterface *qi = NULL;
                               IOHIDCallbackFunction cb = NULL;
                               qi->setEventCallout(NULL, cb, NULL, NULL); ],
                             [ wxUSE_JOYSTICK=yes ]
                           )
+            AC_LANG_POP()
             AC_MSG_RESULT($wxUSE_JOYSTICK)
         fi
 
     dnl joystick support is only for Linux 2.1.x or greater
     else
-        AC_CHECK_HEADERS(linux/joystick.h, wxUSE_JOYSTICK=yes)
+        dnl wxJoystick not supported by wxMGL at all
+        if test "$wxUSE_MGL" != "1"; then
+            dnl notice the dummy includes argument: without it, AC_CHECK_HEADER
+            dnl checks only whether the header can be preprocessed, not that it
+            dnl can be compiled and in Linux 2.6.16 joystick.h is present but
+            dnl can't be compiled because of an error and with the default
+            dnl AC_CHECK_HEADER semantics we'd still detect it in this case and
+            dnl build would fail later
+            AC_CHECK_HEADER(linux/joystick.h, [wxUSE_JOYSTICK=yes],, [AC_INCLUDES_DEFAULT()])
+        fi
     fi
 
     if test "$wxUSE_JOYSTICK" = "yes"; then
@@ -6415,7 +6611,7 @@ if test "$USE_WIN32" = 1 -a \( "$wxUSE_DATAOBJ"       = "yes" \
                           -o "$wxUSE_CLIPBOARD"     = "yes" \
                           -o "$wxUSE_OLE"     = "yes" \
                           -o "$wxUSE_DRAG_AND_DROP" = "yes" \) ; then
-    AC_CHECK_HEADERS(ole2.h)
+    AC_CHECK_HEADER(ole2.h,,, [ ])
 
     if test "$ac_cv_header_ole2_h" = "yes" ; then
         if test "$GCC" = yes ; then
@@ -6430,7 +6626,7 @@ if test "$USE_WIN32" = 1 -a \( "$wxUSE_DATAOBJ"       = "yes" \
             if test "$wxUSE_OLE" = "yes" ; then
                 AC_DEFINE(wxUSE_OLE)
                 AC_DEFINE(wxUSE_OLE_AUTOMATION)
-                AC_DEFINE(wxUSE_OLE_ACTIVEX)
+                AC_DEFINE(wxUSE_ACTIVEX)
                 SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS oleauto"
             fi
         fi
@@ -6469,8 +6665,8 @@ if test "$wxUSE_IPC" = "yes"; then
 fi
 
 if test "$wxUSE_DATAOBJ" = "yes"; then
-    if test "$wxUSE_MGL" = 1; then
-        AC_MSG_WARN([wxDataObject not yet supported under MGL... disabled])
+    if test "$wxUSE_MGL" = 1 -o "$wxUSE_DFB" = 1; then
+        AC_MSG_WARN([wxDataObject not yet supported under $TOOLKIT... disabled])
         wxUSE_DATAOBJ=no
     else
         AC_DEFINE(wxUSE_DATAOBJ)
@@ -6482,8 +6678,8 @@ else
 fi
 
 if test "$wxUSE_CLIPBOARD" = "yes"; then
-    if test "$wxUSE_MGL" = 1; then
-        AC_MSG_WARN([Clipboard not yet supported under MGL... disabled])
+    if test "$wxUSE_MGL" = 1 -o "$wxUSE_DFB" = 1; then
+        AC_MSG_WARN([Clipboard not yet supported under $TOOLKIT... disabled])
         wxUSE_CLIPBOARD=no
     fi
 
@@ -6500,18 +6696,9 @@ if test "$wxUSE_DRAG_AND_DROP" = "yes" ; then
         fi
     fi
 
-    if test "$wxUSE_MOTIF" = 1; then
-        AC_MSG_WARN([Drag and drop not yet supported under Motif... disabled])
-        wxUSE_DRAG_AND_DROP=no
-    fi
-
-    if test "$wxUSE_X11" = 1; then
-        AC_MSG_WARN([Drag and drop not yet supported under X11... disabled])
-        wxUSE_DRAG_AND_DROP=no
-    fi
-
-    if test "$wxUSE_MGL" = 1; then
-        AC_MSG_WARN([Drag and drop not yet supported under MGL... disabled])
+    if test "$wxUSE_MOTIF" = 1 -o "$wxUSE_X11" = 1 -o "$wxUSE_MGL" = 1 -o \
+            "$wxUSE_DFB" = 1; then
+        AC_MSG_WARN([Drag and drop not yet supported under $TOOLKIT... disabled])
         wxUSE_DRAG_AND_DROP=no
     fi
 
@@ -6575,6 +6762,12 @@ if test "$wxUSE_CARET" = "yes"; then
   SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS caret"
 fi
 
+if test "$wxUSE_COLLPANE" = "yes"; then
+    AC_DEFINE(wxUSE_COLLPANE)
+    USES_CONTROLS=1
+    SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS collpane"
+fi
+
 if test "$wxUSE_COMBOBOX" = "yes"; then
   AC_DEFINE(wxUSE_COMBOBOX)
   USES_CONTROLS=1
@@ -6632,8 +6825,13 @@ if test "$wxUSE_FONTPICKERCTRL" = "yes"; then
 fi
 
 if test "$wxUSE_DISPLAY" = "yes"; then
-    AC_DEFINE(wxUSE_DISPLAY)
-    SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS display multimon"
+    if test "$wxUSE_DFB" = 1 -o "$wxUSE_MGL" = 1; then
+        AC_MSG_WARN([wxDisplay not yet supported under $TOOLKIT... disabled])
+        wxUSE_DISPLAY=no
+    else
+        AC_DEFINE(wxUSE_DISPLAY)
+        SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS display multimon"
+    fi
 fi
 
 if test "$wxUSE_DETECT_SM" = "yes"; then
@@ -6731,6 +6929,11 @@ if test "$wxUSE_SCROLLBAR" = "yes"; then
     SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS scroll scrollsub"
 fi
 
+if test "$wxUSE_SEARCHCTRL" = "yes"; then
+    AC_DEFINE(wxUSE_SEARCHCTRL)
+    USES_CONTROLS=1
+fi
+
 if test "$wxUSE_SLIDER" = "yes"; then
     AC_DEFINE(wxUSE_SLIDER)
     USES_CONTROLS=1
@@ -6864,8 +7067,8 @@ if test "$wxUSE_POPUPWIN" = "yes"; then
 fi
 
 if test "$wxUSE_DIALUP_MANAGER" = "yes"; then
-    if test "$wxUSE_MAC" = 1 -o "$wxUSE_COCOA" = 1 ; then
-        AC_MSG_WARN([Dialup manager not yet supported under Mac OS X... disabled])
+    if test "$wxUSE_MAC" = 1 -o "$wxUSE_COCOA" = 1 -o "$wxUSE_MGL" = 1; then
+        AC_MSG_WARN([Dialup manager not supported on this platform... disabled])
     else
         AC_DEFINE(wxUSE_DIALUP_MANAGER)
         SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS dialup"
@@ -6934,7 +7137,10 @@ if test "$wxUSE_WEBKIT" = "yes"; then
                            AC_MSG_WARN([WebKit headers not found; disabling wxWebKit])
                            wxUSE_WEBKIT=no
                         ],
-                        [#include <Carbon/Carbon.h>])
+                        [
+                           #include <Carbon/Carbon.h>
+                           #include <WebKit/WebKit.h>
+                        ])
         CPPFLAGS="$old_CPPFLAGS"
     elif test "$wxUSE_COCOA" = 1; then
         AC_DEFINE(wxUSE_WEBKIT)
@@ -6995,7 +7201,12 @@ if test "$wxUSE_VALIDATORS" = "yes"; then
 fi
 
 if test "$wxUSE_PALETTE" = "yes" ; then
-  AC_DEFINE(wxUSE_PALETTE)
+    if test "$wxUSE_DFB" = 1; then
+        AC_MSG_WARN([wxPalette not yet supported under DFB... disabled])
+        wxUSE_PALETTE=no
+    else
+        AC_DEFINE(wxUSE_PALETTE)
+    fi
 fi
 
 if test "$wxUSE_UNICODE" = "yes" -a "$wxUSE_UNICODE_MSLU" = "yes" ; then
@@ -7025,6 +7236,10 @@ if test "$wxUSE_IMAGE" = "yes" ; then
       AC_DEFINE(wxUSE_PCX)
     fi
 
+    if test "$wxUSE_TGA" = "yes" ; then
+      AC_DEFINE(wxUSE_TGA)
+    fi
+
     if test "$wxUSE_IFF" = "yes" ; then
       AC_DEFINE(wxUSE_IFF)
     fi
@@ -7281,9 +7496,6 @@ dnl ---------------------------------------------------------------------------
 dnl Output the makefiles and such from the results found above
 dnl ---------------------------------------------------------------------------
 
-dnl no more tests from here
-AC_LANG_POP
-
 dnl all additional libraries (except wxWidgets itself) we link with
 
 if test "$wxUSE_MAC" = 1 ; then
@@ -7392,7 +7604,7 @@ dnl come first and the one with setup.h should be before $(top_srcdir)/include
 dnl in case the latter contains setup.h used by non-autoconf makefiles (e.g.
 dnl CodeWarrior):
 CPPFLAGS=`echo $WXCONFIG_CPPFLAGS \
- -I\\${top_builddir}lib/wx/include/${TOOLCHAIN_FULLNAME} \
+ -I\\${wx_top_builddir}/lib/wx/include/${TOOLCHAIN_FULLNAME} \
  -I\\${top_srcdir}/include $TOOLKIT_INCLUDE \
  $CPPFLAGS `
 
@@ -7588,7 +7800,7 @@ if test "$wxUSE_WINE" = "yes"; then
 fi
 
 dnl ---------------------------------------------------------------------------
-dnl Add Universal binary support 
+dnl Add Universal binary support
 dnl Note we don't do this earlier because adding these cpp/ld flags could
 dnl cause configure tests to fail.
 dnl ---------------------------------------------------------------------------
@@ -7598,7 +7810,7 @@ if test "$wxUSE_MAC" = 1 ; then
         dnl --enable-universal_binary=SDK names a path to an SDK
         if test "x$wxUSE_UNIVERSAL_BINARY" == xyes; then
             OSX_UNIV_OPTS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk"
-        else 
+        else
             dnl '' would mean universal with no SDK, which may be the case if
             dnl the compiler uses a sysroot by default
             OSX_UNIV_OPTS=${wxUSE_UNIVERSAL_BINARY:+"-isysroot '$wxUSE_UNIVERSAL_BINARY'"}
@@ -7676,7 +7888,7 @@ then
     CPPFLAGS="-DWX_PRECOMP $CPPFLAGS"
 fi
 
-dnl HACK ALERT!! 
+dnl HACK ALERT!!
 dnl For now, we need to alter bk-deps not to generate deps
 dnl when we've configured a Universal binary build.
 dnl The next version of Bakefile will have the correct fix for this
@@ -7857,7 +8069,10 @@ AC_CONFIG_FILES([ lib/wx/config/inplace-${TOOLCHAIN_FULLNAME}:wx-config-inplace.
                 [ chmod +x lib/wx/config/inplace-${TOOLCHAIN_FULLNAME} ],
                 [ TOOLCHAIN_FULLNAME="${TOOLCHAIN_FULLNAME}" ])
 
-AC_CONFIG_FILES([ version-script Makefile ])
+if test "$wx_cv_version_script" = "yes"; then
+    AC_CONFIG_FILES(version-script)
+fi
+AC_CONFIG_FILES(Makefile)
 
 AC_CONFIG_COMMANDS([wx-config],
                    [ rm -f wx-config
@@ -7885,6 +8100,10 @@ fi
 dnl Add tests to the list of subdirs if cppunit 1.8.0+ is detected
 AM_PATH_CPPUNIT(1.8.0, [SUBDIRS="$SUBDIRS tests"])
 
+if test "$USE_UNIX" != "1" -a "$USE_WIN32" != "1"; then
+    DISABLED_CONTRIB="$DISABLED_CONTRIB net"
+fi
+
 for subdir in `echo $SUBDIRS`; do
     if test -d ${srcdir}/${subdir} ; then
         if test "$wxUSE_GUI" = "yes"; then
@@ -7904,7 +8123,7 @@ for subdir in `echo $SUBDIRS`; do
                 disabled_var=DISABLED_`echo $subdir | tr [[a-z]] [[A-Z]]`;
                 eval "disabled=\$$disabled_var"
                 disabled=/`echo X $disabled | sed 's@ @/|/@g'`/
-                makefiles=`(cd $srcdir ; find $subdir -name Makefile.in) | egrep -v "$disabled"`
+                makefiles=`(cd $srcdir ; find $subdir -name Makefile.in) | $EGREP -v "$disabled"`
             fi
         else dnl we build wxBase only
             dnl don't take all samples/utils, just those which build with
@@ -7947,8 +8166,8 @@ echo "  Should wxWidgets be linked as a shared library?         ${wxUSE_SHARED:-
 echo "  Should wxWidgets be compiled in Unicode mode?           ${wxUSE_UNICODE:-no}"
 
 echo "  What level of wxWidgets compatibility should be enabled?"
-echo "                                       wxWidgets 2.4      ${WXWIN_COMPATIBILITY_2_4:-no}"
-echo "                                       wxWidgets 2.6      ${WXWIN_COMPATIBILITY_2_6:-yes}"
+echo "                                       wxWidgets 2.6      ${WXWIN_COMPATIBILITY_2_6:-no}"
+echo "                                       wxWidgets 2.8      ${WXWIN_COMPATIBILITY_2_8:-yes}"
 
 echo "  Which libraries should wxWidgets use?"
 echo "                                       jpeg               ${wxUSE_LIBJPEG-none}"