]> git.saurik.com Git - wxWidgets.git/blobdiff - configure.in
removed wxBusyCursorSuspender use
[wxWidgets.git] / configure.in
index 68f6bf63fbe22cd2633381588943d76ee0fdc953..049843487e8d4c36651c1c820515fe890610705c 100644 (file)
@@ -589,7 +589,7 @@ fi
 
 dnl check for glibc version
 if test "$USE_LINUX" = 1; then
-    AC_CACHE_CHECK([for glibc version], wx_lib_glibc21,
+    AC_CACHE_CHECK([for glibc 2.1 or later], wx_lib_glibc21,
         AC_TRY_COMPILE([#include <features.h>],
             [
                 #if !__GLIBC_PREREQ(2, 1)
@@ -597,18 +597,16 @@ if test "$USE_LINUX" = 1; then
                 #endif
             ],
             [
-                AC_MSG_RESULT(2.1 or later),
                 wx_lib_glibc21=yes
             ],
             [
-                AC_MSG_RESULT(less than 2.1),
                 wx_lib_glibc21=no
             ]
         )
     )
 
     if test "$wx_lib_glibc21" = "yes"; then
-        AC_DEFINE(wxHAVE_GLIBC2))
+        AC_DEFINE(wxHAVE_GLIBC2)
     fi
 fi
 
@@ -2184,96 +2182,103 @@ dnl the name of the static library
 WX_LIBRARY_NAME_STATIC="lib${WX_LIBRARY}.a"
 WX_LIBRARY_NAME_STATIC_GL="lib${WX_LIBRARY}_gl.a"
 
-dnl the name of the shared library
-case "${host}" in
-  *-*-mingw32* )
-    WX_LIBRARY_NAME_SHARED="wx${WX_MAJOR_VERSION_NUMBER}${WX_MINOR_VERSION_NUMBER}_${WX_RELEASE_NUMBER}.dll"
-  ;;
-  * )
-    WX_LIBRARY_NAME_SHARED="lib${WX_LIBRARY}-${WX_RELEASE}.so.${WX_CURRENT}.${WX_REVISION}.${WX_AGE}"
-    WX_LIBRARY_NAME_SHARED_GL="lib${WX_LIBRARY}_gl-${WX_RELEASE}.so.${WX_CURRENT}.${WX_REVISION}.${WX_AGE}"
-  ;;
-esac
-
-dnl the name of the links to the shared library
-WX_LIBRARY_LINK1="lib${WX_LIBRARY}-${WX_RELEASE}.so.${WX_CURRENT}"
-WX_LIBRARY_LINK2="lib${WX_LIBRARY}-${WX_RELEASE}.so"
-WX_LIBRARY_LINK3="lib${WX_LIBRARY}.so"
-WX_LIBRARY_LINK1_GL="lib${WX_LIBRARY}_gl-${WX_RELEASE}.so.${WX_CURRENT}"
-WX_LIBRARY_LINK2_GL="lib${WX_LIBRARY}_gl-${WX_RELEASE}.so"
-WX_LIBRARY_LINK3_GL="lib${WX_LIBRARY}_gl.so"
-
-dnl shared library settings
-SHARED_LD=
-PIC_FLAG=
-WX_ALL=
-WX_ALL_INSTALLED=
-BURNT_LIBRARY_NAME=
-WX_TARGET_LIBRARY_SONAME=
-
 dnl --- the marker for quick search, leave it here: SHARED_LIB_SETUP ---
 
 if test "$wxUSE_SHARED" = "yes"; then
+    dnl the name of the shared library
     case "${host}" in
+      *-*-mingw32* )
+        WX_LIBRARY_NAME_SHARED="wx${WX_MAJOR_VERSION_NUMBER}${WX_MINOR_VERSION_NUMBER}_${WX_RELEASE_NUMBER}.dll"
+      ;;
+
       *-hp-hpux* )
-        if test "$GCC" = yes ; then
-            SHARED_LD="${CXX} -shared -fPIC -o"
-            PIC_FLAG="-fPIC"
-        else
+        SO_SUFFIX="sl"
+      ;;
+
+      *-*-darwin* )
+        SO_SUFFIX="dylib"
+      ;;
+
+      * )
+        SO_SUFFIX="so"
+      ;;
+    esac
+
+    dnl set the name of the shared lib if not done above
+    if test "x$SO_SUFFIX" != "x"; then
+        WX_LIBRARY_NAME_SHARED="lib${WX_LIBRARY}-${WX_RELEASE}.${SO_SUFFIX}.${WX_CURRENT}.${WX_REVISION}.${WX_AGE}"
+        WX_LIBRARY_NAME_SHARED_GL="lib${WX_LIBRARY}_gl-${WX_RELEASE}.${SO_SUFFIX}.${WX_CURRENT}.${WX_REVISION}.${WX_AGE}"
+    fi
+
+    dnl the name of the links to the shared library
+    WX_LIBRARY_LINK1="lib${WX_LIBRARY}-${WX_RELEASE}.${SO_SUFFIX}.${WX_CURRENT}"
+    WX_LIBRARY_LINK2="lib${WX_LIBRARY}-${WX_RELEASE}.${SO_SUFFIX}"
+    WX_LIBRARY_LINK3="lib${WX_LIBRARY}.${SO_SUFFIX}"
+    WX_LIBRARY_LINK1_GL="lib${WX_LIBRARY}_gl-${WX_RELEASE}.${SO_SUFFIX}.${WX_CURRENT}"
+    WX_LIBRARY_LINK2_GL="lib${WX_LIBRARY}_gl-${WX_RELEASE}.${SO_SUFFIX}"
+    WX_LIBRARY_LINK3_GL="lib${WX_LIBRARY}_gl.${SO_SUFFIX}"
+
+    dnl install targets
+    if test "$wxUSE_OPENGL" = "yes"; then
+        WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS CREATE_INSTALLED_LINKS_GL"
+        WX_ALL="CREATE_LINKS CREATE_LINKS_GL"
+    else
+        WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
+        WX_ALL="CREATE_LINKS"
+    fi
+
+    dnl the extra compiler flags needed for compilation of shared library
+    if test "$GCC" = "yes"; then
+        dnl the switch for gcc is the same under all platforms
+        PIC_FLAG="-fPIC"
+    fi
+
+    dnl the command to use for creating the shared library
+    SHARED_LD="${CXX} -shared -o"
+
+    case "${host}" in
+      *-hp-hpux* )
+        dnl default settings are good for gcc but not for the native HP-UX
+        if test "$GCC" != "yes"; then
             dnl no idea why it wants it, but it does
             LDFLAGS="-L/usr/lib"
 
             SHARED_LD="${CXX} -b -o"
             PIC_FLAG="+Z"
         fi
-        WX_LIBRARY_NAME_SHARED="libwx_${TOOLKIT_NAME}.sl"
-        WX_LIBRARY_NAME_SHARED_GL="libwx_${TOOLKIT_NAME}_gl.sl"
-        if test "$wxUSE_OPENGL" = "yes"; then
-            WX_ALL_INSTALLED="preinstall_gl"
-            WX_ALL="${WX_LIBRARY_NAME_SHARED} ${WX_LIBRARY_NAME_SHARED_GL}"
-        else
-            WX_ALL="${WX_LIBRARY_NAME_SHARED}"
-        fi
+
       ;;
 
-      dnl in fact, these settings are for any platform using gcc
       *-*-linux* )
-        SHARED_LD="${CXX} -shared -o"
-        PIC_FLAG="-fPIC"
+        if test "$GCC" != "yes"; then
+            AC_CACHE_CHECK([for Intel compiler], wx_cv_prog_icc,
+            [
+                AC_TRY_COMPILE([],
+                    [
+                        #ifndef __INTEL_COMPILER
+                        #error Not icc
+                        #endif
+                    ],
+                    wx_cv_prog_icc=yes,
+                    wx_cv_prog_icc=no
+                )
+            ])
+
+            if test "$wx_cv_prog_icc" = "yes"; then
+                PIC_FLAG="-KPIC"
+            fi
+        fi
+
         if test "$wxUSE_BURNT_NAME" = "yes" ; then
             BURNT_LIBRARY_NAME="-Wl,-soname,${WX_LIBRARY_LINK1}"
             BURNT_LIBRARY_NAME_GL="-Wl,-soname,${WX_LIBRARY_LINK1_GL}"
             dnl substitute this in makelib.env for the contrib libs
             WX_TARGET_LIBRARY_SONAME="-Wl,-soname,\$(TARGETLIB_LINK1)"
         fi
-        if test "$wxUSE_OPENGL" = "yes"; then
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS CREATE_INSTALLED_LINKS_GL"
-            WX_ALL="CREATE_LINKS CREATE_LINKS_GL"
-        else
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-            WX_ALL="CREATE_LINKS"
-        fi
-      ;;
-      *-*-irix5* | *-*-irix6* )
-        if test "$GCC" = yes ; then
-           SHARED_LD="${CXX} -shared -o"
-           PIC_FLAG="-fPIC"
-        else
-           SHARED_LD="${CXX} -shared -o"
-        fi
-        if test "$wxUSE_OPENGL" = "yes"; then
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS CREATE_INSTALLED_LINKS_GL"
-            WX_ALL="CREATE_LINKS CREATE_LINKS_GL"
-        else
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-            WX_ALL="CREATE_LINKS"
-        fi
       ;;
+
       *-*-solaris2* )
         if test "$GCC" = yes ; then
-            SHARED_LD="${CXX} -shared -o"
-            PIC_FLAG="-fPIC"
-
             dnl newer versions of gcc need -isystem to compile X headers on
             dnl Solaris (which use old style C syntax)
             CPPFLAGS="$CPPFLAGS -isystem /usr/openwin/include"
@@ -2281,81 +2286,24 @@ if test "$wxUSE_SHARED" = "yes"; then
             SHARED_LD="${CXX} -G -o"
             PIC_FLAG="-KPIC"
         fi
-        if test "$wxUSE_OPENGL" = "yes"; then
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS CREATE_INSTALLED_LINKS_GL"
-            WX_ALL="CREATE_LINKS CREATE_LINKS_GL"
-        else
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-            WX_ALL="CREATE_LINKS"
-        fi
-      ;;
-      *-*-sunos4* )
-        SHARED_LD="${CXX} -shared -o"
-        PIC_FLAG="-fPIC"
-        WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-        WX_ALL="CREATE_LINKS"
-      ;;
-      *-*-freebsd* | *-*-openbsd* | *-*-netbsd* )
-        SHARED_LD="${CXX} -shared -o"
-        PIC_FLAG="-fPIC"
-        if test "$wxUSE_OPENGL" = "yes"; then
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS CREATE_INSTALLED_LINKS_GL"
-            WX_ALL="CREATE_LINKS CREATE_LINKS_GL"
-        else
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-            WX_ALL="CREATE_LINKS"
-        fi
       ;;
+
       *-*-darwin* )
-       TOOLKIT_DEF="${TOOLKIT_DEF} -D__UNIX__ -D__DARWIN__ -D__POWERPC__"
-       CFLAGS="${CFLAGS} -fno-common"
-       CPPFLAGS="${CPPFLAGS} -fno-common"
+        TOOLKIT_DEF="${TOOLKIT_DEF} -D__UNIX__ -D__DARWIN__ -D__POWERPC__"
+        CPPFLAGS="${CPPFLAGS} -fno-common"
         SHARED_LD="${CXX} -dynamiclib -o"
         PIC_FLAG="-dynamic -fPIC"
-        if test "$wxUSE_OPENGL" = "yes"; then
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS CREATE_INSTALLED_LINKS_GL"
-            WX_ALL="CREATE_LINKS CREATE_LINKS_GL"
-        else
-            WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-            WX_ALL="CREATE_LINKS"
-        fi
+
         dnl add the resources target for wxMac
-       if test "$wxUSE_MAC" = 1 ; then
-               WX_ALL="${WX_ALL} ./lib/lib${WX_LIBRARY}-${WX_RELEASE}.r"
-       fi
-        dnl the name of the shared library
-        WX_LIBRARY_NAME_SHARED="lib${WX_LIBRARY}-${WX_RELEASE}.dylib.${WX_CURRENT}.${WX_REVISION}.${WX_AGE}"
-        WX_LIBRARY_NAME_SHARED_GL="lib${WX_LIBRARY}_gl-${WX_RELEASE}.dylib.${WX_CURRENT}.${WX_REVISION}.${WX_AGE}"
-        dnl the name of the links to the shared library
-        WX_LIBRARY_LINK1="lib${WX_LIBRARY}-${WX_RELEASE}.dylib.${WX_CURRENT}"
-        WX_LIBRARY_LINK2="lib${WX_LIBRARY}-${WX_RELEASE}.dylib"
-        WX_LIBRARY_LINK3="lib${WX_LIBRARY}.dylib"
-        WX_LIBRARY_LINK1_GL="lib${WX_LIBRARY}_gl-${WX_RELEASE}.dylib.${WX_CURRENT}"
-        WX_LIBRARY_LINK2_GL="lib${WX_LIBRARY}_gl-${WX_RELEASE}.dylib"
-        WX_LIBRARY_LINK3_GL="lib${WX_LIBRARY}_gl.dylib"
-      ;;
-      *-*-osf* )
-        SHARED_LD="${CXX} -shared -o"
-        PIC_FLAG="-fPIC"
-        WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-        WX_ALL="CREATE_LINKS"
-      ;;
-      *-*-dgux5* )
-        SHARED_LD="${CXX} -shared -o"
-        PIC_FLAG="-fPIC"
-        WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-        WX_ALL="CREATE_LINKS"
-      ;;
-      *-*-sysv5* )
-        SHARED_LD="${CXX} -shared -o"
-        PIC_FLAG="-fPIC"
-        WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-        WX_ALL="CREATE_LINKS"
+        if test "$wxUSE_MAC" = 1 ; then
+                WX_ALL="${WX_ALL} ./lib/lib${WX_LIBRARY}-${WX_RELEASE}.r"
+        fi
       ;;
+
       *-*-aix* )
         SHARED_LD="/usr/lpp/xlC/bin/makeC++SharedLib -p 0 -o"
-        WX_ALL=${WX_LIBRARY_NAME_SHARED}
       ;;
+
       *-*-cygwin* )
         dnl only static for now
         WX_TARGET_LIBRARY="${WX_LIBRARY_NAME_STATIC}"
@@ -2367,6 +2315,7 @@ if test "$wxUSE_SHARED" = "yes"; then
             WX_ALL="${WX_LIBRARY_NAME_STATIC}"
         fi
       ;;
+
       *-*-mingw32* )
         WX_LIBRARY_NAME_STATIC="lib/libwx${WX_MAJOR_VERSION_NUMBER}${WX_MINOR_VERSION_NUMBER}_${WX_RELEASE_NUMBER}.a"
         SHARED_LD="${CC} -shared -Wl,--out-implib,${WX_LIBRARY_NAME_STATIC} -o"
@@ -2381,19 +2330,28 @@ if test "$wxUSE_SHARED" = "yes"; then
             WX_ALL="${WX_LIBRARY_NAME_SHARED}"
         fi
       ;;
+
       *-pc-os2_emx )
         dnl only static for now
         WX_TARGET_LIBRARY="${WX_LIBRARY_NAME_STATIC}"
         WX_ALL="${WX_LIBRARY_NAME_STATIC}"
       ;;
+
       *-*-beos* )
         dnl can't use gcc under BeOS for shared library creation because it
         dnl complains about missing 'main'
         SHARED_LD="${LD} -shared -o"
-        PIC_FLAG="-fPIC"
-        WX_ALL_INSTALLED="CREATE_INSTALLED_LINKS"
-        WX_ALL="CREATE_LINKS"
       ;;
+
+      *-*-freebsd* | *-*-openbsd* | *-*-netbsd* | \
+      *-*-sunos4* | \
+      *-*-irix5* | *-*-irix6* | \
+      *-*-osf* | \
+      *-*-dgux5* | \
+      *-*-sysv5* )
+        dnl defaults are ok
+      ;;
+
       *)
         AC_MSG_ERROR(unknown system type ${host}.)
     esac
@@ -2403,6 +2361,7 @@ if test "$wxUSE_SHARED" = "yes"; then
         WX_TARGET_LIBRARY="${WX_LIBRARY_NAME_SHARED}"
         WX_TARGET_LIBRARY_GL="${WX_LIBRARY_NAME_SHARED_GL}"
     fi
+
     dnl do not alter the LIBRARY_TYPE strings "so" and "a", they are magic
     WX_TARGET_LIBRARY_TYPE="so"
 else
@@ -2456,6 +2415,27 @@ fi
 
 if test "$USE_WIN32" = 1; then
     AC_CHECK_HEADERS(w32api.h)
+    
+    dnl check if can use _WIN_IE macro
+    AC_CACHE_CHECK([if w32api has good enough MSIE support], wx_cv_w32api_win_ie,
+    [
+      AC_TRY_COMPILE([#include <w32api.h>],
+                   [
+                     #define wxCHECK_W32API_VERSION( major, minor ) \
+                     ( defined( __W32API_MAJOR_VERSION ) && defined( __W32API_MINOR_VERSION ) \
+                     && ( ( __W32API_MAJOR_VERSION > (major) ) \
+                     || ( __W32API_MAJOR_VERSION == (major) && __W32API_MINOR_VERSION >= (minor))))
+                     
+                     #if !wxCHECK_W32API_VERSION(1,1)
+                     #error You need w32api 1.1 or newer
+                     #endif
+                   ], [
+                      wx_cv_w32api_win_ie=yes
+                      CPPFLAGS="$CPPFLAGS -D_WIN_IE=0x400"
+                   ], [
+                      wx_cv_w32api_win_ie=no
+                   ])
+    ])
 fi
 
 dnl ---------------------------------------------------------------------------
@@ -2825,6 +2805,35 @@ fi
 dnl check for vfork() (even if it's the same as fork() in modern Unices)
 AC_CHECK_FUNCS(vfork)
 
+dnl get the library function to use for wxGetDiskSpace()
+AC_CACHE_CHECK(for statfs, wx_cv_func_statfs,
+    AC_TRY_COMPILE(
+        [
+             #include <sys/vfs.h>
+        ],
+        [
+             long l;
+             struct statfs fs;
+             statfs("/", &fs);
+             l = fs.f_bsize;
+             l += fs.f_blocks;
+             l += fs.f_bavail;
+        ],
+        [
+             wx_cv_func_statfs=yes
+        ],
+        [
+             wx_cv_func_statfs=no
+        ]
+    )
+)
+
+if test "$wx_cv_func_statfs" = "yes"; then
+    AC_DEFINE(HAVE_STATFS)
+else
+    AC_MSG_WARN([wxGetDiskSpace() function won't work without statfs()])
+fi
+
 dnl check for fcntl() or at least flock() needed by Unix implementation of
 dnl wxSingleInstanceChecker
 if test "$wxUSE_SNGLINST_CHECKER" = "yes"; then
@@ -3074,10 +3083,12 @@ if test "$wxUSE_THREADS" = "yes" ; then
   dnl defined, we do it by directly assigned
   dnl PTHREAD_MUTEX_RECURSIVE_MUTEX_INITIALIZER_NP to attr
 
-  dnl we need to define _XOPEN_SOURCE=500 to get PTHREAD_MUTEX_RECURSIVE
-  dnl with glibc 2.1+, it probably shouldn't hurt elsewhere?
+  dnl we need _GNU_SOURCE to get PTHREAD_MUTEX_RECURSIVE with glibc 2.1+
+  dnl (strictly speaking we only need _XOPEN_SOURCE=500 but just defining
+  dnl this disables _BSD_SOURCE which breaks libtiff compilation, so it is
+  dnl simpler to just define _GNU_SOURCE to get everything)
   if test "x$wx_lib_glibc21" = "xyes"; then
-      CFLAGS="$CFLAGS -D_XOPEN_SOURCE=500"
+      CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
   fi
 
   AC_CACHE_CHECK([for pthread_mutexattr_t], wx_cv_type_pthread_mutexattr_t,
@@ -3124,7 +3135,7 @@ if test "$wxUSE_THREADS" = "yes" ; then
   dnl building MT programs under Solaris with the native compiler requires -mt
   dnl switch
   if test "$USE_SOLARIS" = "yes" -a "$GCC" != "yes"; then
-      CFLAGS="${CFLAGS} -mt"
+      CPPFLAGS="${CFLAGS} -mt"
       CXXFLAGS="${CXXFLAGS} -mt"
       LDFLAGS="${LDFLAGS} -mt"
   fi
@@ -3138,8 +3149,7 @@ if test "$wxUSE_THREADS" = "yes"; then
 
   dnl must define _REENTRANT for multithreaded code except for Darwin/Mac OS X
   if test "$USE_DARWIN" != 1; then
-    CFLAGS="${CFLAGS} -D_REENTRANT"
-    CXXFLAGS="${CXXFLAGS} -D_REENTRANT"
+    CPPFLAGS="${CPPFLAGS} -D_REENTRANT"
   fi
 
   SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS thread"
@@ -3149,8 +3159,7 @@ else
   if test "$ac_cv_func_strtok_r" = "yes"; then
     AC_MSG_CHECKING(if -D_REENTRANT is needed)
     if test "$NEEDS_D_REENTRANT_FOR_R_FUNCS" = 1; then
-        CFLAGS="${CFLAGS} -D_REENTRANT"
-        CXXFLAGS="${CXXFLAGS} -D_REENTRANT"
+        CPPFLAGS="${CPPFLAGS} -D_REENTRANT"
         AC_MSG_RESULT(yes)
     else
         AC_MSG_RESULT(no)
@@ -3177,8 +3186,8 @@ fi
 
 if test "$wxUSE_MAC" = 1 ; then
   TOOLKIT_DEF="${TOOLKIT_DEF} -DTARGET_CARBON"
-  CFLAGS="${CFLAGS} -fpascal-strings"
-  CPPFLAGS="${CPPFLAGS} -cpp-precomp -fpascal-strings"
+  CPPFLAGS="${CPPFLAGS} -fpascal-strings"
+  CXXFLAGS="${CXXFLAGS} -cpp-precomp"
   AC_CHECK_PROG(REZ, Rez, Rez, /Developer/Tools/Rez)
   AC_CHECK_PROG(DEREZ, Derez, Derez, /Developer/Tools/Derez)
   RESCOMP=${REZ}
@@ -3574,7 +3583,7 @@ if test "$wxUSE_STREAMS" = "yes" ; then
   AC_DEFINE(wxUSE_STREAMS)
 fi
 
-dnl ------------------------------------------------------------------------
+dnl ---------------------------------------------------------------------------
 dnl time/date functions
 dnl ------------------------------------------------------------------------
 
@@ -3679,8 +3688,7 @@ if test "$wxUSE_DATETIME" = "yes"; then
                 ],
                 [
                     struct timeval tv;
-                    struct timezone tz;
-                    gettimeofday(&tv, &tz);
+                    gettimeofday(&tv, NULL);
                 ],
                 wx_cv_func_gettimeofday_has_2_args=yes,
                 AC_TRY_COMPILE(
@@ -3693,7 +3701,10 @@ if test "$wxUSE_DATETIME" = "yes"; then
                         gettimeofday(&tv);
                     ],
                     wx_cv_func_gettimeofday_has_2_args=no,
-                    wx_cv_func_gettimeofday_has_2_args=unknown
+                    [
+                        AC_MSG_WARN([failed to determine number of gettimeofday() arguments])
+                        wx_cv_func_gettimeofday_has_2_args=unknown
+                    ]
                 )
             )
             AC_LANG_RESTORE
@@ -3983,7 +3994,7 @@ if test "$wxUSE_HELP" = "yes"; then
                 AC_DEFINE(wxUSE_MS_HTML_HELP)
             ],
             [
-                AC_MSG_WARN(MS HTML Help cannot be used without htmlhelp.h so it won't be compiled without it)
+                AC_MSG_WARN([MS HTML Help cannot be used without htmlhelp.h, disabled])
                 wxUSE_MS_HTML_HELP=no
             ])
       fi
@@ -4025,6 +4036,40 @@ dnl ---------------------------------------------------------------------------
 dnl IPC: IPC, Drag'n'Drop, Clipboard, ...
 dnl ---------------------------------------------------------------------------
 
+dnl check for ole headers and disable a few features requiring it if not
+dnl present (earlier versions of mingw32 don't have ole2.h)
+if test "$USE_WIN32" = 1; then
+    AC_CHECK_HEADERS(ole2.h)
+
+    if test "$ac_cv_header_ole2_h" = "yes" ; then
+        if test "$GCC" = yes ; then
+            ALL_OBJECTS="$ALL_OBJECTS \$(OLEOBJS)"
+            ALL_DEPFILES="$ALL_DEPFILES \$(OLEDEPS)"
+            CODE_GEN_FLAGS_CXX="$CODE_GEN_FLAGS_CXX -fvtable-thunks"
+            LIBS="$LIBS -lrpcrt4 -loleaut32 -lole32 -luuid"
+            AC_DEFINE(wxUSE_OLE)
+
+        fi
+
+        dnl for OLE clipboard and dnd
+        AC_DEFINE(wxUSE_DATAOBJ)
+    else
+        AC_MSG_WARN([Some features disabled because OLE headers not found])
+
+        wxUSE_CLIPBOARD=no
+        wxUSE_DRAG_AND_DROP=no
+        wxUSE_DATAOBJ=no
+    fi
+
+    dnl this is for MSW only, so we test for it inside "if USE_WIN32"
+    if test "$wxUSE_METAFILE" = "yes"; then
+        AC_DEFINE(wxUSE_METAFILE)
+
+        dnl this one should probably be made separately configurable
+        AC_DEFINE(wxUSE_ENH_METAFILE)
+    fi
+fi
+
 if test "$wxUSE_IPC" = "yes"; then
     if test "$wxUSE_SOCKETS" != "yes"; then
         AC_MSG_WARN(wxWindows IPC classes require sockets, disabled)
@@ -4035,6 +4080,8 @@ fi
 
 if test "$wxUSE_CLIPBOARD" = "yes"; then
     AC_DEFINE(wxUSE_CLIPBOARD)
+
+    dnl required by clipboard code in configuration check
     AC_DEFINE(wxUSE_DATAOBJ)
 fi
 
@@ -4056,34 +4103,6 @@ if test "$wxUSE_DRAG_AND_DROP" = "yes" ; then
         wxUSE_DRAG_AND_DROP=no
     fi
 
-    if test "$USE_WIN32" = 1; then
-        dnl check for ole headers and disable DnD if not present (earlier
-        dnl versions of mingw32 don't have them)
-
-        AC_CHECK_HEADERS(ole2.h)
-
-        if test "$ac_cv_header_ole2_h" = "yes" ; then
-            if test "$GCC" = yes ; then
-                ALL_OBJECTS="$ALL_OBJECTS \$(OLEOBJS)"
-                ALL_DEPFILES="$ALL_DEPFILES \$(OLEDEPS)"
-                CODE_GEN_FLAGS_CXX="$CODE_GEN_FLAGS_CXX -fvtable-thunks"
-                LIBS="$LIBS -lrpcrt4 -loleaut32 -lole32 -luuid"
-                AC_DEFINE(wxUSE_OLE)
-
-                dnl metafiles need the ole code, right??  if not this
-                dnl doesn't need to be in here.
-                if test "$wxUSE_METAFILE" = "yes"; then
-                    AC_DEFINE(wxUSE_METAFILE)
-                    dnl this one should probably be made separately configurable
-                    AC_DEFINE(wxUSE_ENH_METAFILE)
-                fi
-            fi
-        else
-            AC_MSG_WARN(Drag and drop disabled because OLE headers not found)
-            wxUSE_DRAG_AND_DROP=no
-        fi
-    fi
-
     if test "$wxUSE_DRAG_AND_DROP" = "yes"; then
         AC_DEFINE(wxUSE_DRAG_AND_DROP)
         SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS dnd"
@@ -4509,6 +4528,18 @@ fi
 
 AC_DEFINE_UNQUOTED(WXWIN_OS_DESCRIPTION, $OSINFO)
 
+dnl ---------------------------------------------------------------------------
+dnl define the variable containing the installation prefix (used in dcpsg.cpp)
+dnl ---------------------------------------------------------------------------
+
+if test "x$prefix" != "xNONE"; then
+    wxPREFIX=$prefix
+else
+    wxPREFIX=$ac_default_prefix
+fi
+
+AC_DEFINE_UNQUOTED(wxINSTALL_PREFIX, "$wxPREFIX")
+
 dnl ---------------------------------------------------------------------------
 dnl Output the makefiles and such from the results found above
 dnl ---------------------------------------------------------------------------