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code cleanup in DrawTextRectangle()
[wxWidgets.git] / configure.in
diff --git a/configure.in b/configure.in
index 34f53337e82c8fd94c1f0226bdfdf996bb1bb516..a5e49b32e2bec04158f8552c2b966afb7a1cb9e8 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -401,6 +401,7 @@ if test $DEBUG_CONFIGURE = 1; then
   DEFAULT_wxUSE_LIBMSPACK=no
   DEFAULT_wxUSE_LIBSDL=no
   DEFAULT_wxUSE_LIBGNOMEPRINT=no
   DEFAULT_wxUSE_LIBMSPACK=no
   DEFAULT_wxUSE_LIBSDL=no
   DEFAULT_wxUSE_LIBGNOMEPRINT=no
+  DEFAULT_wxUSE_LIBGNOMEVFS=no
   DEFAULT_wxUSE_LIBHILDON=no
   DEFAULT_wxUSE_ODBC=no
   DEFAULT_wxUSE_OPENGL=no
   DEFAULT_wxUSE_LIBHILDON=no
   DEFAULT_wxUSE_ODBC=no
   DEFAULT_wxUSE_OPENGL=no
@@ -604,6 +605,7 @@ else
   DEFAULT_wxUSE_LIBMSPACK=yes
   DEFAULT_wxUSE_LIBSDL=no
   DEFAULT_wxUSE_LIBGNOMEPRINT=no
   DEFAULT_wxUSE_LIBMSPACK=yes
   DEFAULT_wxUSE_LIBSDL=no
   DEFAULT_wxUSE_LIBGNOMEPRINT=no
+  DEFAULT_wxUSE_LIBGNOMEVFS=no
   DEFAULT_wxUSE_LIBHILDON=no
   DEFAULT_wxUSE_ODBC=no
   DEFAULT_wxUSE_OPENGL=no
   DEFAULT_wxUSE_LIBHILDON=no
   DEFAULT_wxUSE_ODBC=no
   DEFAULT_wxUSE_OPENGL=no
@@ -830,7 +832,8 @@ WX_ARG_SYS_WITH(libtiff,   [  --with-libtiff          use libtiff (TIFF file for
 WX_ARG_SYS_WITH(libxpm,    [  --with-libxpm           use libxpm (XPM file format)], wxUSE_LIBXPM)
 WX_ARG_WITH(libmspack,     [  --with-libmspack        use libmspack (CHM help files loading)], wxUSE_LIBMSPACK)
 WX_ARG_WITH(sdl,           [  --with-sdl              use SDL for audio on Unix], wxUSE_LIBSDL)
 WX_ARG_SYS_WITH(libxpm,    [  --with-libxpm           use libxpm (XPM file format)], wxUSE_LIBXPM)
 WX_ARG_WITH(libmspack,     [  --with-libmspack        use libmspack (CHM help files loading)], wxUSE_LIBMSPACK)
 WX_ARG_WITH(sdl,           [  --with-sdl              use SDL for audio on Unix], wxUSE_LIBSDL)
-WX_ARG_WITH(gnomeprint,    [  --with-gnomeprint       use GNOME print for printing under Unix], wxUSE_LIBGNOMEPRINT)
+WX_ARG_WITH(gnomeprint,    [  --with-gnomeprint       use GNOME print for printing under GNOME], wxUSE_LIBGNOMEPRINT)
+WX_ARG_WITH(gnomevfs,      [  --with-gnomevfs         use GNOME VFS for associating MIME types], wxUSE_LIBGNOMEVFS)
 WX_ARG_WITH(hildon,        [  --with-hildon           use Hildon framework for Nokia 770], wxUSE_LIBHILDON)
 WX_ARG_WITH(opengl,        [  --with-opengl           use OpenGL (or Mesa)], wxUSE_OPENGL)
 
 WX_ARG_WITH(hildon,        [  --with-hildon           use Hildon framework for Nokia 770], wxUSE_LIBHILDON)
 WX_ARG_WITH(opengl,        [  --with-opengl           use OpenGL (or Mesa)], wxUSE_OPENGL)
 
@@ -1410,6 +1413,10 @@ dnl is -traditional needed for correct compilations
 dnl   adds -traditional for gcc if needed
 AC_PROG_GCC_TRADITIONAL
 
 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
 AC_LANG_PUSH(C++)
 
 dnl C++-compiler checks
@@ -1422,8 +1429,6 @@ dnl see CFLAGS line above
 CXXFLAGS=${CXXFLAGS:=}
 AC_BAKEFILE_PROG_CXX
 
 CXXFLAGS=${CXXFLAGS:=}
 AC_BAKEFILE_PROG_CXX
 
-AC_LANG_POP
-
 dnl ranlib command
 dnl   defines RANLIB with the appropriate command
 AC_PROG_RANLIB
 dnl ranlib command
 dnl   defines RANLIB with the appropriate command
 AC_PROG_RANLIB
@@ -1677,8 +1682,6 @@ case "${host}" in
       dnl ---------------------------------------------------------------------
       dnl (non-OS/2-only piece)
 
       dnl ---------------------------------------------------------------------
       dnl (non-OS/2-only piece)
 
-      AC_LANG_PUSH(C++)
-
       AC_CACHE_CHECK([for strcasecmp() in string.h], ac_cv_string_strcasecmp, [
           AC_TRY_LINK([
               #include <string.h>
       AC_CACHE_CHECK([for strcasecmp() in string.h], ac_cv_string_strcasecmp, [
           AC_TRY_LINK([
               #include <string.h>
@@ -1713,7 +1716,6 @@ case "${host}" in
           fi
       fi
 
           fi
       fi
 
-      AC_LANG_POP
       dnl (end of non-OS/2-only piece)
   ;;
 esac
       dnl (end of non-OS/2-only piece)
   ;;
 esac
@@ -1903,7 +1905,6 @@ if test "x$wx_largefile" = "xyes"; then
                 [if -D__STDC_EXT__ is required],
                 wx_cv_STDC_EXT_required,
                 [
                 [if -D__STDC_EXT__ is required],
                 wx_cv_STDC_EXT_required,
                 [
-                    AC_LANG_PUSH(C++)
                     AC_TRY_COMPILE(
                         [],
                         [
                     AC_TRY_COMPILE(
                         [],
                         [
@@ -1914,7 +1915,6 @@ if test "x$wx_largefile" = "xyes"; then
                         wx_cv_STDC_EXT_required=no,
                         wx_cv_STDC_EXT_required=yes
                     )
                         wx_cv_STDC_EXT_required=no,
                         wx_cv_STDC_EXT_required=yes
                     )
-                    AC_LANG_POP
                 ]
             )
             if test "x$wx_cv_STDC_EXT_required" = "xyes"; then
                 ]
             )
             if test "x$wx_cv_STDC_EXT_required" = "xyes"; then
@@ -2006,8 +2006,6 @@ fi
 
 dnl check for std::string or std::wstring
 if test "$wxUSE_STD_STRING" = "yes" -o "$wxUSE_STL" = "yes"; then
 
 dnl check for std::string or std::wstring
 if test "$wxUSE_STD_STRING" = "yes" -o "$wxUSE_STL" = "yes"; then
-    AC_LANG_PUSH(C++)
-
     if test "$wxUSE_UNICODE" = "yes"; then
         std_string="std::wstring"
         char_type="wchar_t"
     if test "$wxUSE_UNICODE" = "yes"; then
         std_string="std::wstring"
         char_type="wchar_t"
@@ -2052,13 +2050,9 @@ if test "$wxUSE_STD_STRING" = "yes" -o "$wxUSE_STL" = "yes"; then
                         ]
                     )
                     ])
                         ]
                     )
                     ])
-
-    AC_LANG_POP
 fi
 
 if test "$wxUSE_STD_IOSTREAM" = "yes"; then
 fi
 
 if test "$wxUSE_STD_IOSTREAM" = "yes"; then
-    AC_LANG_PUSH(C++)
-
     AC_CHECK_TYPES([std::istream, std::ostream],,
                    [wxUSE_STD_IOSTREAM=no],
                    [#include <iostream>])
     AC_CHECK_TYPES([std::istream, std::ostream],,
                    [wxUSE_STD_IOSTREAM=no],
                    [#include <iostream>])
@@ -2070,13 +2064,9 @@ if test "$wxUSE_STD_IOSTREAM" = "yes"; then
             AC_MSG_WARN([No std::iostreams, switching to --disable-std_iostreams])
         fi
     fi
             AC_MSG_WARN([No std::iostreams, switching to --disable-std_iostreams])
         fi
     fi
-
-    AC_LANG_POP
 fi
 
 if test "$wxUSE_STL" = "yes"; then
 fi
 
 if test "$wxUSE_STL" = "yes"; then
-    AC_LANG_PUSH(C++)
-
     dnl check for basic STL functionality
     AC_MSG_CHECKING([for basic STL functionality])
     AC_TRY_COMPILE([#include <string>
     dnl check for basic STL functionality
     AC_MSG_CHECKING([for basic STL functionality])
     AC_TRY_COMPILE([#include <string>
@@ -2131,8 +2121,6 @@ if test "$wxUSE_STL" = "yes"; then
                                      AC_DEFINE(HAVE_GNU_CXX_HASH_MAP)],
                                     [AC_MSG_RESULT(no)])
                      ])
                                      AC_DEFINE(HAVE_GNU_CXX_HASH_MAP)],
                                     [AC_MSG_RESULT(no)])
                      ])
-
-    AC_LANG_POP
 fi
 
 dnl ---------------------------------------------------------------------------
 fi
 
 dnl ---------------------------------------------------------------------------
@@ -2329,6 +2317,47 @@ if test "x$wx_cv_lib_glibc21" = "xyes"; then
     fi
 fi
 
     fi
 fi
 
+dnl Only add the -lm library if floating point functions cannot be used
+dnl without it.  This check is important on cygwin because of the bizarre
+dnl way that they have organized functions into libraries.  On cygwin, both
+dnl libc.a and libm.a are symbolic links to a single lib libcygwin.a.  This
+dnl means that
+dnl   1) linking with -lm is not necessary, and
+dnl   2) linking with -lm is dangerous if the order of libraries is wrong
+dnl In particular, if you compile any program with -mno-cygwin and link with
+dnl -lm, it will crash instantly when it is run.  This happens because the
+dnl linker incorrectly links the Cygwin libm.a (==libcygwin.a), which replaces
+dnl the ___main function instead of allowing it to be defined by
+dnl /usr/lib/mingw/libmingw32.a as it should be.
+dnl
+dnl On MacOS X, this test will find that -lm is unnecessary and leave it out.
+dnl
+dnl Just check a few floating point functions. If they are all found without
+dnl -lm, then we must not need -lm.
+have_cos=0
+have_floor=0
+AC_CHECK_FUNCS(cos, have_cos=1)
+AC_CHECK_FUNCS(floor, have_floor=1)
+AC_MSG_CHECKING(if floating point functions link without -lm)
+if test "$have_cos" = 1 -a "$have_floor" = 1; then
+    AC_MSG_RESULT(yes)
+else
+    AC_MSG_RESULT(no)
+    LIBS="$LIBS -lm"
+    # use different functions to avoid configure caching
+    have_sin=0
+    have_ceil=0
+    AC_CHECK_FUNCS(sin, have_sin=1)
+    AC_CHECK_FUNCS(ceil, have_ceil=1)
+    AC_MSG_CHECKING(if floating point functions link with -lm)
+    if test "$have_sin" = 1 -a "$have_ceil" = 1; then
+        AC_MSG_RESULT(yes)
+    else
+        AC_MSG_RESULT(no)
+        # not sure we should warn the user, crash, etc.
+    fi
+fi
+
 dnl ---------------------------------------------------------------------------
 dnl Optional libraries
 dnl
 dnl ---------------------------------------------------------------------------
 dnl Optional libraries
 dnl
@@ -2648,12 +2677,10 @@ if test "$wxUSE_EXPAT" != "no"; then
             AC_CACHE_CHECK([if expat.h is valid C++ header],
                 wx_cv_expat_is_not_broken,
                 [
             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_TRY_COMPILE([#include <expat.h>],[],
                     wx_cv_expat_is_not_broken=yes,
                     wx_cv_expat_is_not_broken=no
                 )
-                AC_LANG_POP
                 ]
             )
             if test "$wx_cv_expat_is_not_broken" = "yes" ; then
                 ]
             )
             if test "$wx_cv_expat_is_not_broken" = "yes" ; then
@@ -2793,6 +2820,9 @@ if test "$wxUSE_GUI" = "yes"; then
     fi
 
     if test "$wxUSE_GTK" = 1; then
     fi
 
     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
         AC_MSG_CHECKING([for GTK+ version])
 
         gtk_version_cached=1
@@ -2890,7 +2920,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
         esac
 
         if test "$WXGTK20" = 1; then
         esac
 
         if test "$WXGTK20" = 1; then
-            save_CFLAGS="$CFLAGS"
+            save_CXXFLAGS="$CFLAGS"
             save_LIBS="$LIBS"
             CFLAGS="$wx_cv_cflags_gtk $CFLAGS"
             LIBS="$LIBS $wx_cv_libs_gtk"
             save_LIBS="$LIBS"
             CFLAGS="$wx_cv_cflags_gtk $CFLAGS"
             LIBS="$LIBS $wx_cv_libs_gtk"
@@ -2941,6 +2971,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
             fi
         fi
 
             fi
         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 "$USE_DARWIN" != 1; then
         dnl we need poll() in src/gtk/app.cpp (we know that Darwin doesn't
         dnl have it but we do the check for the others)
         if test "$USE_DARWIN" != 1; then
@@ -3143,12 +3175,12 @@ 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])
                     ]
                 )
                         AC_MSG_WARN([pangoxft library not found, library will be compiled without anti-aliasing support])
                     ]
                 )
-                save_CFLAGS="$CFLAGS"
+                save_CXXFLAGS="$CXXFLAGS"
                 save_LIBS="$LIBS"
                 save_LIBS="$LIBS"
-                CFLAGS="$PANGOX_CFLAGS $CFLAGS"
+                CXXFLAGS="$PANGOX_CFLAGS $CXXFLAGS"
                 LIBS="$LIBS $PANGOX_LIBS"
                 AC_CHECK_FUNCS([pango_font_family_is_monospace])
                 LIBS="$LIBS $PANGOX_LIBS"
                 AC_CHECK_FUNCS([pango_font_family_is_monospace])
-                CFLAGS="$save_CFLAGS"
+                CXXFLAGS="$save_CXXFLAGS"
                 LIBS="$save_LIBS"
         fi
 
                 LIBS="$save_LIBS"
         fi
 
@@ -3178,8 +3210,8 @@ 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$ac_path_to_include"
         else
             WX_INCLUDE_PATH_EXIST($ac_find_includes, $TOOLKIT_INCLUDE)
             TOOLKIT_INCLUDE="$TOOLKIT_INCLUDE$ac_path_to_include"
         else
-            save_CFLAGS=$CFLAGS
-            CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
+            save_CXXFLAGS=$CXXFLAGS
+            CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
 
             AC_TRY_COMPILE(
                 [
 
             AC_TRY_COMPILE(
                 [
@@ -3199,7 +3231,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                 ]
             )
 
                 ]
             )
 
-            CFLAGS=$save_CFLAGS
+            CXXFLAGS=$save_CXXFLAGS
         fi
 
 
         fi
 
 
@@ -3215,8 +3247,8 @@ 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
             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_CFLAGS=$CFLAGS
-            CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
+            save_CXXFLAGS=$CXXFLAGS
+            CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
             save_LIBS="$LIBS"
             LIBS="$GUI_TK_LIBRARY -lXm -lXmu -lXext -lX11"
 
             save_LIBS="$LIBS"
             LIBS="$GUI_TK_LIBRARY -lXm -lXmu -lXext -lX11"
 
@@ -3238,7 +3270,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                 ]
             )
 
                 ]
             )
 
-            CFLAGS=$save_CFLAGS
+            CXXFLAGS=$save_CXXFLAGS
             LIBS="$save_LIBS"
         fi
 
             LIBS="$save_LIBS"
         fi
 
@@ -3252,8 +3284,8 @@ 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"
                     if test "$libs_found" = "0"; then
                         save_LIBS="$LIBS"
                         LIBS="$GUI_TK_LIBRARY -lXm ${libp} -lXmu -lXext -lXt${libsm_ice} -lX11"
-                        save_CFLAGS=$CFLAGS
-                        CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
+                        save_CXXFLAGS=$CXXFLAGS
+                        CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
 
                         AC_TRY_LINK(
                             [
 
                         AC_TRY_LINK(
                             [
@@ -3276,7 +3308,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                         )
 
                         LIBS="$save_LIBS"
                         )
 
                         LIBS="$save_LIBS"
-                        CFLAGS=$save_CFLAGS
+                        CXXFLAGS=$save_CXXFLAGS
                     fi
                 done
             fi
                     fi
                 done
             fi
@@ -3291,8 +3323,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
         dnl elsewhere
         AC_CHECK_LIB(Sgm, [SgCreateList], [libsgm_link=" -lSgm"])
 
         dnl elsewhere
         AC_CHECK_LIB(Sgm, [SgCreateList], [libsgm_link=" -lSgm"])
 
-        save_CFLAGS=$CFLAGS
-        CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
+        save_CXXFLAGS=$CXXFLAGS
+        CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
 
         AC_CACHE_CHECK([for Motif 2],
             wx_cv_lib_motif2,
 
         AC_CACHE_CHECK([for Motif 2],
             wx_cv_lib_motif2,
@@ -3331,7 +3363,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
             AC_DEFINE(__WXLESSTIF__,0)
         fi
 
             AC_DEFINE(__WXLESSTIF__,0)
         fi
 
-        CFLAGS=$save_CFLAGS
+        CXXFLAGS=$save_CXXFLAGS
 
         GUI_TK_LIBRARY="$GUI_TK_LIBRARY${libsgm_link} -lXm${libp_link} -lXmu -lXext -lXt${libsm_ice_link} -lX11"
         TOOLKIT=MOTIF
 
         GUI_TK_LIBRARY="$GUI_TK_LIBRARY${libsgm_link} -lXm${libp_link} -lXmu -lXext -lXt${libsm_ice_link} -lX11"
         TOOLKIT=MOTIF
@@ -3352,8 +3384,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                 AC_CACHE_CHECK([for X11/xpm.h],
                     wx_cv_x11_xpm_h,
                     [
                 AC_CACHE_CHECK([for X11/xpm.h],
                     wx_cv_x11_xpm_h,
                     [
-                        save_CFLAGS=$CFLAGS
-                        CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
+                        save_CXXFLAGS=$CXXFLAGS
+                        CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
 
                         AC_TRY_COMPILE(
                             [
 
                         AC_TRY_COMPILE(
                             [
@@ -3367,7 +3399,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                             wx_cv_x11_xpm_h=no
                         )
 
                             wx_cv_x11_xpm_h=no
                         )
 
-                        CFLAGS=$save_CFLAGS
+                        CXXFLAGS=$save_CXXFLAGS
                     ]
                 )
 
                     ]
                 )
 
@@ -3390,8 +3422,8 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                      [], [$GUI_TK_LIBRARY -lX11])
 
         if test "$wxHAVE_XEXT_LIB" = 1; then
                      [], [$GUI_TK_LIBRARY -lX11])
 
         if test "$wxHAVE_XEXT_LIB" = 1; then
-            save_CFLAGS="$CFLAGS"
-            CFLAGS="$TOOLKIT_INCLUDE $CFLAGS"
+            save_CXXFLAGS="$CXXFLAGS"
+            CXXFLAGS="$TOOLKIT_INCLUDE $CXXFLAGS"
 
             AC_MSG_CHECKING([for X11/extensions/shape.h])
             AC_TRY_COMPILE([
 
             AC_MSG_CHECKING([for X11/extensions/shape.h])
             AC_TRY_COMPILE([
@@ -3410,7 +3442,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                            [
                             AC_MSG_RESULT([not found])
                            ])
                            [
                             AC_MSG_RESULT([not found])
                            ])
-            CFLAGS="$save_CFLAGS"
+            CXXFLAGS="$save_CXXFLAGS"
 
         fi
     fi
 
         fi
     fi
@@ -3619,14 +3651,9 @@ dnl ---------------------------------------------------------------------------
         fi
     elif test "$wxUSE_MSW" = 1; then
 dnl ---------------------------------------------------------------------------
         fi
     elif test "$wxUSE_MSW" = 1; then
 dnl ---------------------------------------------------------------------------
-dnl DirectDraw  / Multimon for MSW
+dnl DirectDraw for MSW - optionally used by WxDisplay.
 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
-        AC_CHECK_HEADERS([multimon.h ddraw.h], [],
-            [
-                wxUSE_DISPLAY="no"
-                AC_MSG_WARN([ddraw.h or multimon.h not found; disabling wxDisplay])
-            ],
-            [#include <windows.h>])
+        AC_CHECK_HEADERS([ddraw.h], [], [], [#include <windows.h>])
     fi
 fi
 
     fi
 fi
 
@@ -3975,7 +4002,6 @@ 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
 
 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++)
 AC_CACHE_CHECK([if size_t is unsigned int],
     wx_cv_size_t_is_uint,
     [
 AC_CACHE_CHECK([if size_t is unsigned int],
     wx_cv_size_t_is_uint,
     [
@@ -4022,8 +4048,6 @@ else
     fi
 fi
 
     fi
 fi
 
-AC_LANG_POP
-
 dnl ---------------------------------------------------------------------------
 dnl Checks for structures
 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
 dnl Checks for structures
 dnl ---------------------------------------------------------------------------
@@ -4098,11 +4122,6 @@ else
     AC_MSG_WARN([Wide character support is unavailable])
 fi
 
     AC_MSG_WARN([Wide character support is unavailable])
 fi
 
-dnl *printf() functions sometimes are available in the library but not
-dnl prototyped -- if this is the case, we can't use them from C++ code, but to
-dnl detect this we have to use C++ compiler for testing
-AC_LANG_PUSH(C++)
-
 dnl check for vsnprintf() -- a safe version of vsprintf())
 dnl
 dnl the trouble here is that on some systems (e.g HP-UX 10) this function is
 dnl check for vsnprintf() -- a safe version of vsprintf())
 dnl
 dnl the trouble here is that on some systems (e.g HP-UX 10) this function is
@@ -4255,8 +4274,6 @@ if test "$wxUSE_UNICODE" = yes; then
                    [AC_MSG_RESULT([no])]);
 fi
 
                    [AC_MSG_RESULT([no])]);
 fi
 
-AC_LANG_POP
-
 if test "x$ac_cv_header_fnmatch_h" = "xyes"; then
     AC_CHECK_FUNCS(fnmatch)
 fi
 if test "x$ac_cv_header_fnmatch_h" = "xyes"; then
     AC_CHECK_FUNCS(fnmatch)
 fi
@@ -4271,10 +4288,8 @@ if test "$TOOLKIT" != "MSW"; then
 
 dnl check for available version of iconv()
 
 
 dnl check for available version of iconv()
 
-AC_LANG_PUSH(C++)
 AM_ICONV
 LIBS="$LIBICONV $LIBS"
 AM_ICONV
 LIBS="$LIBICONV $LIBS"
-AC_LANG_POP
 
 dnl check for POSIX signals if we need them
 if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes" -a "$wxUSE_UNIX" = "yes"; then
 
 dnl check for POSIX signals if we need them
 if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes" -a "$wxUSE_UNIX" = "yes"; then
@@ -4286,8 +4301,6 @@ if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes" -a "$wxUSE_UNIX" = "yes"; then
     fi
 
     if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes"; then
     fi
 
     if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes"; then
-      AC_LANG_PUSH(C++)
-
       AC_CACHE_CHECK([for sa_handler type], wx_cv_type_sa_handler,
       [
         AC_TRY_COMPILE([#include <signal.h>],
       AC_CACHE_CHECK([for sa_handler type], wx_cv_type_sa_handler,
       [
         AC_TRY_COMPILE([#include <signal.h>],
@@ -4303,16 +4316,12 @@ if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes" -a "$wxUSE_UNIX" = "yes"; then
                      ])
       ])
 
                      ])
       ])
 
-      AC_LANG_POP
-
       AC_DEFINE_UNQUOTED(wxTYPE_SA_HANDLER, $wx_cv_type_sa_handler)
     fi
 fi
 
 dnl backtrace() and backtrace_symbols() for wxStackWalker
 if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
       AC_DEFINE_UNQUOTED(wxTYPE_SA_HANDLER, $wx_cv_type_sa_handler)
     fi
 fi
 
 dnl backtrace() and backtrace_symbols() for wxStackWalker
 if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
-    AC_LANG_PUSH(C++)
-
     AC_CACHE_CHECK([for backtrace() in <execinfo.h>], wx_cv_func_backtrace,
         [
             AC_TRY_COMPILE([#include <execinfo.h>],
     AC_CACHE_CHECK([for backtrace() in <execinfo.h>], wx_cv_func_backtrace,
         [
             AC_TRY_COMPILE([#include <execinfo.h>],
@@ -4351,8 +4360,6 @@ if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
             AC_DEFINE(HAVE_CXA_DEMANGLE)
         fi
     fi
             AC_DEFINE(HAVE_CXA_DEMANGLE)
         fi
     fi
-
-    AC_LANG_POP
 fi
 
 if test "$wxUSE_STACKWALKER" = "yes" -a "$USE_WIN32" != "1" -a "$USE_UNIX" != "1"; then
 fi
 
 if test "$wxUSE_STACKWALKER" = "yes" -a "$USE_WIN32" != "1" -a "$USE_UNIX" != "1"; then
@@ -4391,7 +4398,6 @@ 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
 
 if test "$wx_cv_func_statfs" = "yes"; then
     dnl check whether we have its dcelaration too: some systems (AIX 4) lack it
-    AC_LANG_PUSH(C++)
     AC_CACHE_CHECK(for statfs declaration, wx_cv_func_statfs_decl,
         AC_TRY_COMPILE(
             [
     AC_CACHE_CHECK(for statfs declaration, wx_cv_func_statfs_decl,
         AC_TRY_COMPILE(
             [
@@ -4410,7 +4416,6 @@ if test "$wx_cv_func_statfs" = "yes"; then
             wx_cv_func_statfs_decl=no
         )
     )
             wx_cv_func_statfs_decl=no
         )
     )
-    AC_LANG_POP
 
     if test "$wx_cv_func_statfs_decl" = "yes"; then
         AC_DEFINE(HAVE_STATFS_DECL)
 
     if test "$wx_cv_func_statfs_decl" = "yes"; then
         AC_DEFINE(HAVE_STATFS_DECL)
@@ -4441,8 +4446,6 @@ else
         dnl
         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
         dnl
         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_LANG_PUSH(C++)
-
         AC_CACHE_CHECK(for statvfs argument type, wx_cv_type_statvfs_t,
             AC_TRY_COMPILE(
                 [
         AC_CACHE_CHECK(for statvfs argument type, wx_cv_type_statvfs_t,
             AC_TRY_COMPILE(
                 [
@@ -4477,8 +4480,6 @@ else
             )
         )
 
             )
         )
 
-        AC_LANG_POP
-
         if test "$wx_cv_type_statvfs_t" != "unknown"; then
             AC_DEFINE(HAVE_STATVFS)
         fi
         if test "$wx_cv_type_statvfs_t" != "unknown"; then
             AC_DEFINE(HAVE_STATVFS)
         fi
@@ -4551,14 +4552,8 @@ fi
 dnl check for uname (POSIX) and gethostname (BSD)
 AC_CHECK_FUNCS(uname gethostname, break)
 
 dnl check for uname (POSIX) and gethostname (BSD)
 AC_CHECK_FUNCS(uname gethostname, break)
 
-dnl check for MT-safe version of strtok (on DEC Alpha, it's ok for C compiler
-dnl but not for C++ one - hence change language)
-AC_LANG_PUSH(C++)
-
 AC_CHECK_FUNCS(strtok_r)
 
 AC_CHECK_FUNCS(strtok_r)
 
-AC_LANG_POP
-
 dnl check for inet_addr and inet_aton (these may live either in libc, or in
 dnl libnsl or libresolv or libsocket)
 INET_LINK=
 dnl check for inet_addr and inet_aton (these may live either in libc, or in
 dnl libnsl or libresolv or libsocket)
 INET_LINK=
@@ -4641,14 +4636,14 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
 
     dnl the code below:
     dnl
 
     dnl the code below:
     dnl
-    dnl   defines THREADS_LINK and THREADS_CFLAGS which are the options
+    dnl   defines THREADS_LINK and THREADS_CXXFLAGS 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=
     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_CFLAGS=
+    THREADS_CXXFLAGS=
 
     if test "$wxUSE_THREADS" = "yes" ; then
         if test "$USE_BEOS" = 1; then
 
     if test "$wxUSE_THREADS" = "yes" ; then
         if test "$USE_BEOS" = 1; then
@@ -4739,7 +4734,7 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
 
                 -*)
                     AC_MSG_CHECKING([whether pthreads work with $flag])
 
                 -*)
                     AC_MSG_CHECKING([whether pthreads work with $flag])
-                    THREADS_CFLAGS="$flag"
+                    THREADS_CXXFLAGS="$flag"
                     ;;
 
                 *)
                     ;;
 
                 *)
@@ -4749,16 +4744,16 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
               esac
 
               save_LIBS="$LIBS"
               esac
 
               save_LIBS="$LIBS"
-              save_CFLAGS="$CFLAGS"
+              save_CXXFLAGS="$CXXFLAGS"
               LIBS="$THREADS_LINK $LIBS"
               LIBS="$THREADS_LINK $LIBS"
-              CFLAGS="$THREADS_CFLAGS $CFLAGS"
+              CXXFLAGS="$THREADS_CXXFLAGS $CXXFLAGS"
 
               AC_TRY_LINK([#include <pthread.h>],
                           [pthread_create(0,0,0,0);],
                           THREADS_OK=yes)
 
               LIBS="$save_LIBS"
 
               AC_TRY_LINK([#include <pthread.h>],
                           [pthread_create(0,0,0,0);],
                           THREADS_OK=yes)
 
               LIBS="$save_LIBS"
-              CFLAGS="$save_CFLAGS"
+              CXXFLAGS="$save_CXXFLAGS"
 
               AC_MSG_RESULT($THREADS_OK)
               if test "x$THREADS_OK" = "xyes"; then
 
               AC_MSG_RESULT($THREADS_OK)
               if test "x$THREADS_OK" = "xyes"; then
@@ -4766,7 +4761,7 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
               fi
 
               THREADS_LINK=""
               fi
 
               THREADS_LINK=""
-              THREADS_CFLAGS=""
+              THREADS_CXXFLAGS=""
       done
 
       if test "x$THREADS_OK" != "xyes"; then
       done
 
       if test "x$THREADS_OK" != "xyes"; then
@@ -4775,7 +4770,7 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
       else
           dnl yes, these special compiler flags should be used with the
           dnl linker as well
       else
           dnl yes, these special compiler flags should be used with the
           dnl linker as well
-          LDFLAGS="$THREADS_CFLAGS $LDFLAGS"
+          LDFLAGS="$THREADS_CXXFLAGS $LDFLAGS"
           LIBS="$THREADS_LINK $LIBS"
 
           AC_MSG_CHECKING([if more special flags are required for pthreads])
           LIBS="$THREADS_LINK $LIBS"
 
           AC_MSG_CHECKING([if more special flags are required for pthreads])
@@ -4807,11 +4802,11 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
           esac
           AC_MSG_RESULT(${flag})
           if test "x$flag" != xno; then
           esac
           AC_MSG_RESULT(${flag})
           if test "x$flag" != xno; then
-              THREADS_CFLAGS="$THREADS_CFLAGS $flag"
+              THREADS_CXXFLAGS="$THREADS_CXXFLAGS $flag"
           fi
 
           dnl don't add these options to CPPFLAGS as cpp might not know them
           fi
 
           dnl don't add these options to CPPFLAGS as cpp might not know them
-          WXCONFIG_CFLAGS="$WXCONFIG_CFLAGS $THREADS_CFLAGS"
+          WXCONFIG_CXXFLAGS="$WXCONFIG_CXXFLAGS $THREADS_CXXFLAGS"
       fi
     fi
 
       fi
     fi
 
@@ -4962,8 +4957,8 @@ else
             AC_CACHE_CHECK([if compiler supports -mthreads],
                 wx_cv_cflags_mthread,
                 [
             AC_CACHE_CHECK([if compiler supports -mthreads],
                 wx_cv_cflags_mthread,
                 [
-                    CFLAGS_OLD="$CFLAGS"
-                    CFLAGS="-mthreads $CFLAGS"
+                    CXXFLAGS_OLD="$CXXFLAGS"
+                    CXXFLAGS="-mthreads $CXXFLAGS"
                     AC_TRY_COMPILE([], [],
                         wx_cv_cflags_mthread=yes,
                         wx_cv_cflags_mthread=no
                     AC_TRY_COMPILE([], [],
                         wx_cv_cflags_mthread=yes,
                         wx_cv_cflags_mthread=no
@@ -4973,11 +4968,11 @@ else
 
             if test "$wx_cv_cflags_mthread" = "yes"; then
                 dnl it does, use it
 
             if test "$wx_cv_cflags_mthread" = "yes"; then
                 dnl it does, use it
-                WXCONFIG_CFLAGS="$WXCONFIG_CFLAGS -mthreads"
+                WXCONFIG_CXXFLAGS="$WXCONFIG_CXXFLAGS -mthreads"
                 LDFLAGS="$LDFLAGS -mthreads"
             else
                 dnl it doesn't
                 LDFLAGS="$LDFLAGS -mthreads"
             else
                 dnl it doesn't
-                CFLAGS="$CFLAGS_OLD"
+                CXXFLAGS="$CXXFLAGS_OLD"
             fi
         ;;
         *-pc-os2*emx )
             fi
         ;;
         *-pc-os2*emx )
@@ -4997,7 +4992,6 @@ dnl safety issues and supports IPv6, however there currently is no code
 dnl for it, so testing for it is temporarily disabled and we are restricted
 dnl to gethostbyname_r/gethostbyaddr_r  and getservbyname_r
 
 dnl for it, so testing for it is temporarily disabled and we are restricted
 dnl to gethostbyname_r/gethostbyaddr_r  and getservbyname_r
 
-AC_LANG_PUSH(C++)
 dnl AC_CHECK_FUNC(getaddrinfo, AC_DEFINE(HAVE_GETADDRINFO), [
     dnl no getaddrinfo, so check for gethostbyname_r and
     dnl related functions (taken from python's configure.in)
 dnl AC_CHECK_FUNC(getaddrinfo, AC_DEFINE(HAVE_GETADDRINFO), [
     dnl no getaddrinfo, so check for gethostbyname_r and
     dnl related functions (taken from python's configure.in)
@@ -5025,7 +5019,6 @@ dnl AC_CHECK_FUNC(getaddrinfo, AC_DEFINE(HAVE_GETADDRINFO), [
       dnl  check to fit this case, if it's really needed.                - SN )
 dnl    ]
 dnl )
       dnl  check to fit this case, if it's really needed.                - SN )
 dnl    ]
 dnl )
-AC_LANG_POP
 
 if test "$wxUSE_THREADS" = "yes"; then
   AC_DEFINE(wxUSE_THREADS)
 
 if test "$wxUSE_THREADS" = "yes"; then
   AC_DEFINE(wxUSE_THREADS)
@@ -5147,7 +5140,19 @@ if test "$wxUSE_OPTIMISE" = "no" ; then
     fi
 else
     if test "$GCC" = yes ; then
     fi
 else
     if test "$GCC" = yes ; then
-        OPTIMISE_CFLAGS="-O2"
+        case "${host}" in
+            *-pc-os2_emx | *-pc-os2-emx )
+                dnl Not all of the supported gcc versions understand
+                dnl -fstrict-aliasing and none actually needs it (yet).
+                OPTIMISE_CFLAGS="-O2"
+            ;;
+            *)
+                dnl Switch on optimisation but keep strict-aliasing off for
+                dnl now (see -fstrict-aliasing in the gcc manual). When it is
+                dnl switched back on consider using -Wstrict-aliasing=2.
+                OPTIMISE_CFLAGS="-O2 -fno-strict-aliasing"
+            ;;
+        esac
     else
         OPTIMISE_CFLAGS="-O"
     fi
     else
         OPTIMISE_CFLAGS="-O"
     fi
@@ -5393,6 +5398,26 @@ dnl                     EXTRALIBS_GNOMEPRINT="$LIBGNOMEPRINTUI_LIBS"
     fi
 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"
+                        CXXFLAGS="$GNOMEVFS_CFLAGS $CXXFLAGS"
+                        AC_DEFINE(wxUSE_LIBGNOMEVFS)
+                    ],
+                    [
+                        AC_MSG_WARN([libgnomevfs not found, library won't be able to associate MIME type])
+                        wxUSE_LIBGNOMEVFS="no"
+                    ]
+                )
+        fi
+    fi
+fi
+
 if test "$WXGTK20" = 1; then
     if test "$wxUSE_LIBHILDON" = "yes" ; then
         PKG_CHECK_MODULES(HILDON, 
 if test "$WXGTK20" = 1; then
     if test "$wxUSE_LIBHILDON" = "yes" ; then
         PKG_CHECK_MODULES(HILDON, 
@@ -5570,7 +5595,6 @@ if test "$wxUSE_DATETIME" = "yes"; then
     if test "$ac_cv_func_strptime" = "yes"; then
         AC_CACHE_CHECK([for strptime declaration], wx_cv_func_strptime_decl,
             [
     if test "$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>
                 AC_TRY_COMPILE(
                     [
                         #include <time.h>
@@ -5582,7 +5606,6 @@ if test "$wxUSE_DATETIME" = "yes"; then
                     wx_cv_func_strptime_decl=yes,
                     wx_cv_func_strptime_decl=no
                 )
                     wx_cv_func_strptime_decl=yes,
                     wx_cv_func_strptime_decl=no
                 )
-                AC_LANG_POP
             ]
         )
     fi
             ]
         )
     fi
@@ -5684,8 +5707,6 @@ if test "$wxUSE_DATETIME" = "yes"; then
                        wx_cv_func_gettimeofday_has_2_args,
         [
             dnl on some _really_ old systems it takes only 1 argument
                        wx_cv_func_gettimeofday_has_2_args,
         [
             dnl on some _really_ old systems it takes only 1 argument
-            AC_LANG_PUSH(C++)
-
             AC_TRY_COMPILE(
                 [
                     #include <sys/time.h>
             AC_TRY_COMPILE(
                 [
                     #include <sys/time.h>
@@ -5712,7 +5733,6 @@ if test "$wxUSE_DATETIME" = "yes"; then
                     ]
                 )
             )
                     ]
                 )
             )
-            AC_LANG_POP
         ])
 
         if test "$wx_cv_func_gettimeofday_has_2_args" != "yes"; then
         ])
 
         if test "$wx_cv_func_gettimeofday_has_2_args" != "yes"; then
@@ -5764,7 +5784,6 @@ if test "$wxUSE_SOCKETS" = "yes" ; then
         dnl This test needs to be done in C++ mode since gsocket.cpp now
         dnl is C++ code and pointer cast that are possible even without
         dnl warning in C still fail in C++.
         dnl This test needs to be done in C++ mode since gsocket.cpp now
         dnl is C++ code and pointer cast that are possible even without
         dnl warning in C still fail in C++.
-        AC_LANG_PUSH(C++)
         AC_CACHE_CHECK([what is the type of the third argument of getsockname],
                        wx_cv_type_getsockname3,
             [
         AC_CACHE_CHECK([what is the type of the third argument of getsockname],
                        wx_cv_type_getsockname3,
             [
@@ -5886,7 +5905,6 @@ if test "$wxUSE_SOCKETS" = "yes" ; then
         else
             AC_DEFINE_UNQUOTED(SOCKOPTLEN_T, $wx_cv_type_getsockopt5)
         fi
         else
             AC_DEFINE_UNQUOTED(SOCKOPTLEN_T, $wx_cv_type_getsockopt5)
         fi
-        AC_LANG_POP
     fi
 fi
 
     fi
 fi
 
@@ -5951,14 +5969,12 @@ if test "$wxUSE_GUI" = "yes" -a "$wxUSE_JOYSTICK" = "yes"; then
         if test "$USE_DARWIN" = 1; then
             dnl check for a bug in the headers, some have bad setEventCallout
             AC_MSG_CHECKING([headers have declarations needed for joystick support])
         if test "$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_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
 
             AC_MSG_RESULT($wxUSE_JOYSTICK)
         fi
 
@@ -6104,8 +6120,6 @@ if test "$USE_WIN32" = 1 -a \( "$wxUSE_DATAOBJ"       = "yes" \
 
     if test "$ac_cv_header_ole2_h" = "yes" ; then
         if test "$GCC" = yes ; then
 
     if test "$ac_cv_header_ole2_h" = "yes" ; then
         if test "$GCC" = yes ; then
-            AC_LANG_PUSH(C++)
-
             AC_MSG_CHECKING([if g++ requires -fvtable-thunks])
             AC_TRY_COMPILE([#include <windows.h>
                             #include <ole2.h>],
             AC_MSG_CHECKING([if g++ requires -fvtable-thunks])
             AC_TRY_COMPILE([#include <windows.h>
                             #include <ole2.h>],
@@ -6113,7 +6127,6 @@ if test "$USE_WIN32" = 1 -a \( "$wxUSE_DATAOBJ"       = "yes" \
                            [AC_MSG_RESULT(no)],
                            [AC_MSG_RESULT(yes)
                             WXCONFIG_CXXFLAGS="$WXCONFIG_CXXFLAGS -fvtable-thunks"])
                            [AC_MSG_RESULT(no)],
                            [AC_MSG_RESULT(yes)
                             WXCONFIG_CXXFLAGS="$WXCONFIG_CXXFLAGS -fvtable-thunks"])
-            AC_LANG_POP
             LIBS=" -lrpcrt4 -loleaut32 -lole32 -luuid$LIBS"
             if test "$wxUSE_OLE" = "yes" ; then
                 AC_DEFINE(wxUSE_OLE)
             LIBS=" -lrpcrt4 -loleaut32 -lole32 -luuid$LIBS"
             if test "$wxUSE_OLE" = "yes" ; then
                 AC_DEFINE(wxUSE_OLE)
@@ -6885,10 +6898,10 @@ dnl ---------------------------------------------------------------------------
 dnl Output the makefiles and such from the results found above
 dnl ---------------------------------------------------------------------------
 
 dnl Output the makefiles and such from the results found above
 dnl ---------------------------------------------------------------------------
 
-dnl all additional libraries (except wxWidgets itself) we link with
+dnl no more tests from here
+AC_LANG_POP
 
 
-dnl note that we always link with -lm except for Mac OS X
-dnl extended.c uses floor() and is always linked in
+dnl all additional libraries (except wxWidgets itself) we link with
 
 if test "$wxUSE_MAC" = 1 ; then
     if test "$wxUSE_SOUND" = "yes" || test "$wxUSE_MEDIACTRL" = "yes"; then
 
 if test "$wxUSE_MAC" = 1 ; then
     if test "$wxUSE_SOUND" = "yes" || test "$wxUSE_MEDIACTRL" = "yes"; then
@@ -6914,53 +6927,8 @@ if test "$USE_DARWIN" = 1 -a "$wxUSE_MAC" != 1 -a "$wxUSE_COCOA" != 1 ; then
     LDFLAGS="$LDFLAGS -framework IOKit -framework CoreServices -framework System -framework ApplicationServices"
 fi
 
     LDFLAGS="$LDFLAGS -framework IOKit -framework CoreServices -framework System -framework ApplicationServices"
 fi
 
-dnl FIXME: should this be covered by the conditional above
-dnl given the -lm comment there?  Or should that comment (and
-dnl this one) be removed..   [ 7 Nov 2001 ]
-
 LIBS="$ZLIB_LINK $POSIX4_LINK $INET_LINK $WCHAR_LINK $DL_LINK $LIBS"
 
 LIBS="$ZLIB_LINK $POSIX4_LINK $INET_LINK $WCHAR_LINK $DL_LINK $LIBS"
 
-dnl Only add the -lm library if floating point functions cannot be used
-dnl without it.  This check is important on cygwin because of the bizarre
-dnl way that they have organized functions into libraries.  On cygwin, both
-dnl libc.a and libm.a are symbolic links to a single lib libcygwin.a.  This
-dnl means that
-dnl   1) linking with -lm is not necessary, and
-dnl   2) linking with -lm is dangerous if the order of libraries is wrong
-dnl In particular, if you compile any program with -mno-cygwin and link with
-dnl -lm, it will crash instantly when it is run.  This happens because the
-dnl linker incorrectly links the Cygwin libm.a (==libcygwin.a), which replaces
-dnl the ___main function instead of allowing it to be defined by
-dnl /usr/lib/mingw/libmingw32.a as it should be.
-dnl
-dnl On MacOS X, this test will find that -lm is unnecessary and leave it out.
-dnl
-dnl Just check a few floating point functions. If they are all found without
-dnl -lm, then we must not need -lm.
-have_cos=0
-have_floor=0
-AC_CHECK_FUNCS(cos, have_cos=1)
-AC_CHECK_FUNCS(floor, have_floor=1)
-AC_MSG_CHECKING(if floating point functions link without -lm)
-if test "$have_cos" = 1 -a "$have_floor" = 1; then
-    AC_MSG_RESULT(yes)
-else
-    AC_MSG_RESULT(no)
-    LIBS="$LIBS -lm"
-    # use different functions to avoid configure caching
-    have_sin=0
-    have_ceil=0
-    AC_CHECK_FUNCS(sin, have_sin=1)
-    AC_CHECK_FUNCS(ceil, have_ceil=1)
-    AC_MSG_CHECKING(if floating point functions link with -lm)
-    if test "$have_sin" = 1 -a "$have_ceil" = 1; then
-        AC_MSG_RESULT(yes)
-    else
-        AC_MSG_RESULT(no)
-        # not sure we should warn the user, crash, etc.
-    fi
-fi
-
 if test "$wxUSE_GUI" = "yes"; then
 
     dnl TODO add checks that these samples will really compile (i.e. all the
 if test "$wxUSE_GUI" = "yes"; then
 
     dnl TODO add checks that these samples will really compile (i.e. all the
@@ -7076,7 +7044,7 @@ EXTRALIBS_XML="$EXPAT_LINK"
 EXTRALIBS_HTML="$MSPACK_LINK"
 EXTRALIBS_ODBC="$ODBC_LINK"
 if test "$wxUSE_GUI" = "yes"; then
 EXTRALIBS_HTML="$MSPACK_LINK"
 EXTRALIBS_ODBC="$ODBC_LINK"
 if test "$wxUSE_GUI" = "yes"; then
-    EXTRALIBS_GUI=`echo $GUI_TK_LIBRARY $PNG_LINK $JPEG_LINK $TIFF_LINK $WEBKIT_LINK $EXTRALIBS_HILDON $EXTRALIBS_GNOMEPRINT`
+    EXTRALIBS_GUI=`echo $GUI_TK_LIBRARY $PNG_LINK $JPEG_LINK $TIFF_LINK $WEBKIT_LINK $EXTRALIBS_HILDON $EXTRALIBS_GNOMEVFS $EXTRALIBS_GNOMEPRINT`
 fi
 if test "$wxUSE_OPENGL" = "yes"; then
     EXTRALIBS_OPENGL="$LDFLAGS_GL $OPENGL_LIBS"
 fi
 if test "$wxUSE_OPENGL" = "yes"; then
     EXTRALIBS_OPENGL="$LDFLAGS_GL $OPENGL_LIBS"
@@ -7176,6 +7144,7 @@ AC_SUBST(EXTRALIBS_OPENGL)
 AC_SUBST(EXTRALIBS_SDL)
 AC_SUBST(WITH_PLUGIN_SDL)
 AC_SUBST(EXTRALIBS_GNOMEPRINT)
 AC_SUBST(EXTRALIBS_SDL)
 AC_SUBST(WITH_PLUGIN_SDL)
 AC_SUBST(EXTRALIBS_GNOMEPRINT)
+AC_SUBST(EXTRALIBS_GNOMEVFS)
 AC_SUBST(EXTRALIBS_HILDON)
 AC_SUBST(UNICODE)
 AC_SUBST(BUILD)
 AC_SUBST(EXTRALIBS_HILDON)
 AC_SUBST(UNICODE)
 AC_SUBST(BUILD)
@@ -7521,6 +7490,7 @@ echo "                                       expat              ${wxUSE_EXPAT}"
 echo "                                       libmspack          ${wxUSE_LIBMSPACK}"
 echo "                                       sdl                ${wxUSE_LIBSDL}"
 echo "                                       gnomeprint         ${wxUSE_LIBGNOMEPRINT-none}"
 echo "                                       libmspack          ${wxUSE_LIBMSPACK}"
 echo "                                       sdl                ${wxUSE_LIBSDL}"
 echo "                                       gnomeprint         ${wxUSE_LIBGNOMEPRINT-none}"
+echo "                                       gnomevfs           ${wxUSE_LIBGNOMEVFS-none}"
 echo "                                       hildon             ${wxUSE_LIBHILDON-none}"
 
 echo ""
 echo "                                       hildon             ${wxUSE_LIBHILDON-none}"
 
 echo ""
wxWidgets (Impactor)