adding default impl

[wxWidgets.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index 3adc66c3772cba5d96453539970890e78f7851cf..c700ef0eee1989418a30e40ddf2a90694ef61c6b 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -8,79 +8,22 @@ dnl
 dnl Version: $Id$
 dnl ---------------------------------------------------------------------------
 
 dnl Version: $Id$
 dnl ---------------------------------------------------------------------------
 

+

 dnl ===========================================================================
 dnl ===========================================================================

-dnl macros to detect specialty compiler options
+dnl Objective-C(++) related macros

 dnl ===========================================================================
 dnl ===========================================================================

-
-dnl Figure out if we need to pass -ext o to compiler (MetroWerks)
-AC_DEFUN([AC_WX_METROWERKS_EXTO],
-[AC_CACHE_CHECK([if the _AC_LANG compiler requires -ext o], wx_cv_[]_AC_LANG_ABBREV[]_exto,
-dnl First create an empty conf test
-[AC_LANG_CONFTEST([AC_LANG_PROGRAM()])
-dnl Now remove .o and .c.o or .cc.o
-rm -f conftest.$ac_objext conftest.$ac_ext.o
-dnl Now compile the test
-AS_IF([AC_TRY_EVAL(ac_compile)],
-dnl If the test succeeded look for conftest.c.o or conftest.cc.o
-[for ac_file in `(ls conftest.* 2>/dev/null)`; do
-    case $ac_file in
-        conftest.$ac_ext.o)
-            wx_cv_[]_AC_LANG_ABBREV[]_exto="-ext o"
-            ;;
-        *)
-            ;;
-    esac
-done],
-[AC_MSG_FAILURE([cannot figure out if compiler needs -ext o: cannot compile])
-]) dnl AS_IF
-
-rm -f conftest.$ac_ext.o conftest.$ac_objext conftest.$ac_ext
-]) dnl AC_CACHE_CHECK
-
-if test "x$wx_cv_[]_AC_LANG_ABBREV[]_exto" '!=' "x"; then
-    if test "[]_AC_LANG_ABBREV[]" = "c"; then
-        CFLAGS="$wx_cv_[]_AC_LANG_ABBREV[]_exto $CFLAGS"
-    fi
-    if test "[]_AC_LANG_ABBREV[]" = "cxx"; then
-        CXXFLAGS="$wx_cv_[]_AC_LANG_ABBREV[]_exto $CXXFLAGS"
-    fi
-fi
-]) dnl AC_DEFUN
-
-
-dnl Based on autoconf _AC_LANG_COMPILER_GNU
-AC_DEFUN([_AC_WX_LANG_COMPILER_XLC],
-[AC_CACHE_CHECK([whether we are using the IBM xlC _AC_LANG compiler],
-    [wx_cv_[]_AC_LANG_ABBREV[]_compiler_xlc],
-    [AC_TRY_COMPILE([],[#ifndef __xlC__
-       choke me
-#endif
-],
-        [wx_compiler_xlc=yes],
-        [wx_compiler_xlc=no])
-    wx_cv_[]_AC_LANG_ABBREV[]_compiler_xlc=$wx_compiler_xlc
-    ])
-])
-
-dnl Loosely based on autoconf AC_PROG_CC
-AC_DEFUN([AC_WX_PROG_XLCC],
-[AC_LANG_PUSH(C)
-_AC_WX_LANG_COMPILER_XLC
-XLCC=`test $wx_compiler_xlc = yes && echo yes`
-AC_LANG_POP(C)
+m4_define([AC_WX_LANG_OBJECTIVEC],
+[AC_LANG(C)
+ac_ext=m

 ])
 
 ])
 

-dnl Loosely based on autoconf AC_PROG_CXX
-AC_DEFUN([AC_WX_PROG_XLCXX],
-[AC_LANG_PUSH(C++)
-_AC_WX_LANG_COMPILER_XLC
-XLCXX=`test $wx_compiler_xlc = yes && echo yes`
-AC_LANG_POP(C++)
+m4_define([AC_WX_LANG_OBJECTIVECPLUSPLUS],
+[AC_LANG(C++)
+ac_ext=mm

 ])
 
 ])
 

-

 dnl ===========================================================================
 dnl ===========================================================================

-dnl macros to find the a file in the list of include/lib paths
+dnl macros to find a file in the list of include/lib paths

 dnl ===========================================================================
 
 dnl ---------------------------------------------------------------------------
 dnl ===========================================================================
 
 dnl ---------------------------------------------------------------------------


@@ -90,7 +33,7 @@ dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_PATH_FIND_INCLUDES],
 [
 ac_find_includes=
 AC_DEFUN([WX_PATH_FIND_INCLUDES],
 [
 ac_find_includes=

-for ac_dir in $1 /usr/include;
+for ac_dir in $1 /usr/include

   do
     if test -f "$ac_dir/$2"; then
       ac_find_includes=$ac_dir
   do
     if test -f "$ac_dir/$2"; then
       ac_find_includes=$ac_dir


@@ -100,16 +43,17 @@ for ac_dir in $1 /usr/include;
 ])
 
 dnl ---------------------------------------------------------------------------
 ])
 
 dnl ---------------------------------------------------------------------------

-dnl call WX_PATH_FIND_LIBRARIES(search path, header name), sets ac_find_libraries
-dnl to the full name of the file that was found or leaves it empty if not found
+dnl call WX_PATH_FIND_LIBRARIES(lib name, [optional extra search paths])
+dnl sets ac_find_libraries to the full name of the file that was found
+dnl or leaves it empty if not found

 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_PATH_FIND_LIBRARIES],
 [
 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_PATH_FIND_LIBRARIES],
 [

-ac_find_libraries=
-for ac_dir in $1 /usr/lib;
+  ac_find_libraries=
+  for ac_dir in $2 $SEARCH_LIB

   do
   do

-    for ac_extension in a so sl dylib; do
-      if test -f "$ac_dir/lib$2.$ac_extension"; then
+    for ac_extension in a so sl dylib dll.a; do
+      if test -f "$ac_dir/lib$1.$ac_extension"; then

         ac_find_libraries=$ac_dir
         break 2
       fi
         ac_find_libraries=$ac_dir
         break 2
       fi


@@ -117,6 +61,19 @@ for ac_dir in $1 /usr/lib;
   done
 ])
 
   done
 ])
 

+dnl ---------------------------------------------------------------------------
+dnl return list of standard library paths
+dnl ---------------------------------------------------------------------------
+dnl return all default locations:
+dnl   - /usr/lib: standard
+dnl   - /usr/lib32: n32 ABI on IRIX
+dnl   - /usr/lib64: n64 ABI on IRIX
+dnl   - /usr/lib/64: 64 bit ABI on Solaris and Linux x86-64
+dnl
+dnl NB: if any of directories in the list is not a subdir of /usr, code setting
+dnl     wx_cv_std_libpath needs to be updated
+AC_DEFUN([WX_STD_LIBPATH], [/usr/lib /usr/lib32 /usr/lib/64 /usr/lib64])
+

 dnl ---------------------------------------------------------------------------
 dnl Path to include, already defined
 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
 dnl Path to include, already defined
 dnl ---------------------------------------------------------------------------


@@ -137,19 +94,94 @@ AC_DEFUN([WX_INCLUDE_PATH_EXIST],
 ])
 
 dnl ---------------------------------------------------------------------------
 ])
 
 dnl ---------------------------------------------------------------------------

-dnl Path to link, already defined
+dnl Usage: WX_LINK_PATH_EXIST(path, libpath)
+dnl
+dnl Set ac_path_to_link to nothing if path is already in libpath, or to -Lpath
+dnl if it is not, so that libpath can be set to "$libpath$ac_path_to_link"
+dnl after calling this function

 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_LINK_PATH_EXIST],
 [
 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_LINK_PATH_EXIST],
 [

-  echo "$2" | grep "\-L$1" > /dev/null
-  result=$?
-  if test $result = 0; then
+  dnl never add -L/usr/libXXX explicitly to libpath
+  if test "$1" = "default location"; then

     ac_path_to_link=""
   else
     ac_path_to_link=""
   else

-    ac_path_to_link=" -L$1"
+    echo "$2" | grep "\-L$1" > /dev/null
+    result=$?
+    if test $result = 0; then
+      ac_path_to_link=""
+    else
+      ac_path_to_link=" -L$1"
+    fi

   fi
 ])
 
   fi
 ])
 

+dnl ---------------------------------------------------------------------------
+dnl Usage: WX_FIND_LIB(lib-name, [lib-function to test], [extra search paths])
+dnl
+dnl Tests in a variety of ways for the presence of lib-name
+dnl
+dnl On success, returns any novel path found in ac_find_libraries; else "std"
+dnl             and any cflags in ac_find_cflags
+dnl On failure, ac_find_libraries will be empty
+dnl ---------------------------------------------------------------------------
+AC_DEFUN([WX_FIND_LIB],
+[
+  ac_find_libraries=
+
+  dnl Try with pkg-config first. It requires its lib-name parameter lowercase
+  fl_pkgname=`echo "$1" | tr [[:upper:]] [[:lower:]]`
+  dnl suppress PKG_PROG_PKG_CONFIG output; we don't want to keep seeing it
+  PKG_PROG_PKG_CONFIG() AS_MESSAGE_FD> /dev/null
+  PKG_CHECK_MODULES([$1], [$fl_pkgname],
+    [
+      dnl Start by assuming there are no novel lib paths
+      ac_find_libraries="std"
+
+      dnl A simple copy of the internal vars $1_CFLAGS $1_LIBS doesn't work
+      dnl inside the macro
+      dnl
+      dnl TODO: When we stop being autoconf 2.61 compatible, the next 2 lines
+      dnl should become:
+      dnl AS_VAR_COPY([ac_find_cflags], [$1_CFLAGS])
+      dnl AS_VAR_COPY([fl_libs], [$1_LIBS])
+      eval ac_find_cflags=\$$1_CFLAGS
+      eval fl_libs=\$$1_LIBS
+
+      dnl fl_libs may now contain -Lfoopath -lfoo (only non-standard paths are
+      dnl added) We only want the path bit, not the lib names
+      for fl_path in $fl_libs
+      do
+        if test `echo "$fl_path" | cut -c 1-2` = "-L"; then
+          dnl there shouldn't be >1 novel path
+          dnl return it without the -L, ready for WX_LINK_PATH_EXIST
+          ac_find_libraries=`echo "$fl_path" | cut -c 3-`
+        fi
+      done
+    ],
+    [
+      if test "x$ac_find_libraries" = "x"; then
+        dnl Next with AC_CHECK_LIB, if a test function was provided
+        if test "x$2" != "x"; then
+          AC_CHECK_LIB([$1], [$2], [ac_find_libraries="std"])
+        fi
+      fi
+
+      if test "x$ac_find_libraries" = "x"; then
+        dnl Finally try the search path
+        dnl Output a message again, as AC_CHECK_LIB will just have said "no"
+        AC_MSG_CHECKING([elsewhere])
+        dnl $3 will occasionally hold extra path(s) to search
+        WX_PATH_FIND_LIBRARIES([$1], [$3])
+        if test "x$ac_find_libraries" != "x"; then
+          AC_MSG_RESULT([yes])
+        else
+          AC_MSG_RESULT([no])
+        fi
+      fi
+    ])
+])
+

 dnl ===========================================================================
 dnl C++ features test
 dnl ===========================================================================
 dnl ===========================================================================
 dnl C++ features test
 dnl ===========================================================================


@@ -159,7 +191,7 @@ dnl WX_CPP_NEW_HEADERS checks whether the compiler has "new" <iostream> header
 dnl or only the old <iostream.h> one - it may be generally assumed that if
 dnl <iostream> exists, the other "new" headers (without .h) exist too.
 dnl
 dnl or only the old <iostream.h> one - it may be generally assumed that if
 dnl <iostream> exists, the other "new" headers (without .h) exist too.
 dnl

-dnl call WX_CPP_NEW_HEADERS(actiof-if-true, action-if-false)
+dnl call WX_CPP_NEW_HEADERS(action-if-true, action-if-false)

 dnl ---------------------------------------------------------------------------
 
 AC_DEFUN([WX_CPP_NEW_HEADERS],
 dnl ---------------------------------------------------------------------------
 
 AC_DEFUN([WX_CPP_NEW_HEADERS],


@@ -167,7 +199,7 @@ AC_DEFUN([WX_CPP_NEW_HEADERS],
     AC_LANG_SAVE
     AC_LANG_CPLUSPLUS
 
     AC_LANG_SAVE
     AC_LANG_CPLUSPLUS
 

-    AC_CHECK_HEADERS(iostream)
+    AC_CHECK_HEADERS([iostream],,, [ ])

 
     if test "$ac_cv_header_iostream" = "yes" ; then
       ifelse([$1], , :, [$1])
 
     if test "$ac_cv_header_iostream" = "yes" ; then
       ifelse([$1], , :, [$1])


@@ -178,43 +210,6 @@ AC_DEFUN([WX_CPP_NEW_HEADERS],
     AC_LANG_RESTORE
 ])
 
     AC_LANG_RESTORE
 ])
 

-dnl ---------------------------------------------------------------------------
-dnl WX_CPP_BOOL checks whether the C++ compiler has a built in bool type
-dnl
-dnl call WX_CPP_BOOL - will define HAVE_BOOL if the compiler supports bool
-dnl ---------------------------------------------------------------------------
-
-AC_DEFUN([WX_CPP_BOOL],
-[
-  AC_CACHE_CHECK([if C++ compiler supports bool], wx_cv_cpp_bool,
-  [
-    AC_LANG_SAVE
-    AC_LANG_CPLUSPLUS
-
-    AC_TRY_COMPILE(
-      [
-      ],
-      [
-        bool b = true;
-
-        return 0;
-      ],
-      [
-        wx_cv_cpp_bool=yes
-      ],
-      [
-        wx_cv_cpp_bool=no
-      ]
-    )
-
-    AC_LANG_RESTORE
-  ])
-
-  if test "$wx_cv_cpp_bool" = "yes"; then
-    AC_DEFINE(HAVE_BOOL)
-  fi
-])
-

 dnl ---------------------------------------------------------------------------
 dnl WX_CPP_EXPLICIT checks whether the C++ compiler support the explicit
 dnl keyword and defines HAVE_EXPLICIT if this is the case
 dnl ---------------------------------------------------------------------------
 dnl WX_CPP_EXPLICIT checks whether the C++ compiler support the explicit
 dnl keyword and defines HAVE_EXPLICIT if this is the case


@@ -262,6 +257,72 @@ AC_DEFUN([WX_CPP_EXPLICIT],
   fi
 ])
 
   fi
 ])
 

+dnl ---------------------------------------------------------------------------
+dnl WX_CHECK_FUNCS(FUNCTIONS...,
+dnl                [ACTION-IF-FOUND],
+dnl                [ACTION-IF-NOT-FOUND],
+dnl                [EXTRA-DEFINES-AND-INCLUDES],
+dnl                [EXTRA-TEST-CODE])
+dnl
+dnl Checks that the functions listed in FUNCTIONS exist in the headers and the
+dnl libs. For each function, if it is found then defines 'HAVE_FUNCTION' and
+dnl executes ACTION-IF-FOUND, otherwise executes ACTION-IF-NOT-FOUND.
+dnl
+dnl The code from EXTRA-DEFINES-AND-INCLUDES is inserted into the test before
+dnl the default headers are included, and EXTRA-TEST-CODE is inserted into
+dnl the main() function after the default test for existence.
+dnl
+dnl Examples:
+dnl   # the simple case
+dnl   WX_CHECK_FUNCS(stat)
+dnl   # use break to finish the loop early
+dnl   WX_CHECK_FUNCS(mkstemp mktemp, break)
+dnl   # extra defines
+dnl   WX_CHECK_FUNCS(strtok_r, [], [], [#define _RREENTRANT])
+dnl   # extra includes
+dnl   WX_CHECK_FUNCS(swprintf, [], [], [#include <wchar.h>])
+dnl   # checking the signature with extra test code
+dnl   WX_CHECK_FUNCS(gettimeofday, [], [], [#include <sys/time.h>]
+dnl     [struct timeval tv; struct timezone tz; gettimeofday(&tv, &tz)])
+dnl ---------------------------------------------------------------------------
+
+AC_DEFUN([WX_CHECK_FUNCS],
+[
+  for wx_func in $1
+  do
+    AC_CACHE_CHECK(
+      [for $wx_func],
+      [wx_cv_func_$wx_func],
+      [
+        AC_LINK_IFELSE(
+          [
+            AC_LANG_PROGRAM(
+              [
+                $4
+                AC_INCLUDES_DEFAULT
+              ],
+              [
+                #ifndef $wx_func
+                  &$wx_func;
+                #endif
+                $5
+              ])
+          ],
+          [eval wx_cv_func_$wx_func=yes],
+          [eval wx_cv_func_$wx_func=no])
+      ])
+
+    if eval test \$wx_cv_func_$wx_func = yes
+    then
+      AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$wx_func]))
+      $2
+    else
+      :
+      $3
+    fi
+  done
+])
+

 dnl ---------------------------------------------------------------------------
 dnl a slightly better AC_C_BIGENDIAN macro which allows cross-compiling
 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
 dnl a slightly better AC_C_BIGENDIAN macro which allows cross-compiling
 dnl ---------------------------------------------------------------------------


@@ -293,7 +354,7 @@ AC_TRY_RUN([main () {
 }], [ac_cv_c_bigendian=no], [ac_cv_c_bigendian=yes], [ac_cv_c_bigendian=unknown])
 fi])
 if test $ac_cv_c_bigendian = unknown; then
 }], [ac_cv_c_bigendian=no], [ac_cv_c_bigendian=yes], [ac_cv_c_bigendian=unknown])
 fi])
 if test $ac_cv_c_bigendian = unknown; then

-  AC_MSG_WARN([Assuming little-endian target machine - this may be overriden by adding the line "ac_cv_c_bigendian=${ac_cv_c_bigendian='yes'}" to config.cache file])
+  AC_MSG_WARN([Assuming little-endian target machine - this may be overridden by adding the line "ac_cv_c_bigendian=${ac_cv_c_bigendian='yes'}" to config.cache file])

 fi
 if test $ac_cv_c_bigendian = yes; then
   AC_DEFINE(WORDS_BIGENDIAN)
 fi
 if test $ac_cv_c_bigendian = yes; then
   AC_DEFINE(WORDS_BIGENDIAN)


@@ -301,60 +362,38 @@ fi
 ])
 
 dnl ---------------------------------------------------------------------------
 ])
 
 dnl ---------------------------------------------------------------------------

-dnl override AC_ARG_ENABLE/WITH to cache the results in .cache file
+dnl override AC_ARG_ENABLE/WITH to handle options defaults

 dnl ---------------------------------------------------------------------------
 
 dnl ---------------------------------------------------------------------------
 

-AC_DEFUN([WX_ARG_CACHE_INIT],
-        [
-          wx_arg_cache_file="configarg.cache"
-          echo "loading argument cache $wx_arg_cache_file"
-          rm -f ${wx_arg_cache_file}.tmp
-          touch ${wx_arg_cache_file}.tmp
-          touch ${wx_arg_cache_file}
-        ])
-
-AC_DEFUN([WX_ARG_CACHE_FLUSH],
-        [
-          echo "saving argument cache $wx_arg_cache_file"
-          mv ${wx_arg_cache_file}.tmp ${wx_arg_cache_file}
-        ])
-

 dnl this macro checks for a three-valued command line --with argument:
 dnl   possible arguments are 'yes', 'no', 'sys', or 'builtin'
 dnl usage: WX_ARG_SYS_WITH(option, helpmessage, variable-name)
 dnl this macro checks for a three-valued command line --with argument:
 dnl   possible arguments are 'yes', 'no', 'sys', or 'builtin'
 dnl usage: WX_ARG_SYS_WITH(option, helpmessage, variable-name)

+dnl
+dnl the default value (used if the option is not specified at all) is the value
+dnl of wxUSE_ALL_FEATURES (which is "yes" by default but can be changed by
+dnl giving configure --disable-all-features option)

 AC_DEFUN([WX_ARG_SYS_WITH],
         [
           AC_MSG_CHECKING([for --with-$1])
 AC_DEFUN([WX_ARG_SYS_WITH],
         [
           AC_MSG_CHECKING([for --with-$1])

-          no_cache=0

           AC_ARG_WITH($1, [$2],
                       [
                         if test "$withval" = yes; then
           AC_ARG_WITH($1, [$2],
                       [
                         if test "$withval" = yes; then

-                          ac_cv_use_$1='$3=yes'
+                          AS_TR_SH(wx_cv_use_$1)='$3=yes'

                         elif test "$withval" = no; then
                         elif test "$withval" = no; then

-                          ac_cv_use_$1='$3=no'
+                          AS_TR_SH(wx_cv_use_$1)='$3=no'

                         elif test "$withval" = sys; then
                         elif test "$withval" = sys; then

-                          ac_cv_use_$1='$3=sys'
+                          AS_TR_SH(wx_cv_use_$1)='$3=sys'

                         elif test "$withval" = builtin; then
                         elif test "$withval" = builtin; then

-                          ac_cv_use_$1='$3=builtin'
+                          AS_TR_SH(wx_cv_use_$1)='$3=builtin'

                         else
                           AC_MSG_ERROR([Invalid value for --with-$1: should be yes, no, sys, or builtin])
                         fi
                       ],
                       [
                         else
                           AC_MSG_ERROR([Invalid value for --with-$1: should be yes, no, sys, or builtin])
                         fi
                       ],
                       [

-                        LINE=`grep "$3" ${wx_arg_cache_file}`
-                        if test "x$LINE" != x ; then
-                          eval "DEFAULT_$LINE"
-                        else
-                          no_cache=1
-                        fi
-
-                        ac_cv_use_$1='$3='$DEFAULT_$3
+                        AS_TR_SH(wx_cv_use_$1)='$3=${'DEFAULT_$3":-$wxUSE_ALL_FEATURES}"

                       ])
 
                       ])
 

-          eval "$ac_cv_use_$1"
-          if test "$no_cache" != 1; then
-            echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
-          fi
+          eval "$AS_TR_SH(wx_cv_use_$1)"

 
           if test "$$3" = yes; then
             AC_MSG_RESULT(yes)
 
           if test "$$3" = yes; then
             AC_MSG_RESULT(yes)


@@ -369,85 +408,136 @@ AC_DEFUN([WX_ARG_SYS_WITH],
           fi
         ])
 
           fi
         ])
 

-dnl this macro checks for a command line argument and caches the result
-dnl usage: WX_ARG_WITH(option, helpmessage, variable-name)
+dnl this macro simply checks for a command line argument
+dnl usage: WX_ARG_WITH(option, helpmessage, variable-name, [withstring])

 AC_DEFUN([WX_ARG_WITH],
         [
 AC_DEFUN([WX_ARG_WITH],
         [

-          AC_MSG_CHECKING([for --with-$1])
-          no_cache=0
+          withstring=$4
+          defaultval=$wxUSE_ALL_FEATURES
+          if test -z "$defaultval"; then
+              if test x"$withstring" = xwithout; then
+                  defaultval=yes
+              else
+                  defaultval=no
+              fi
+          fi
+          AC_MSG_CHECKING([for --${withstring:-with}-$1])

           AC_ARG_WITH($1, [$2],
                       [
                         if test "$withval" = yes; then
           AC_ARG_WITH($1, [$2],
                       [
                         if test "$withval" = yes; then

-                          ac_cv_use_$1='$3=yes'
+                          AS_TR_SH(wx_cv_use_$1)='$3=yes'

                         else
                         else

-                          ac_cv_use_$1='$3=no'
+                          AS_TR_SH(wx_cv_use_$1)='$3=no'

                         fi
                       ],
                       [
                         fi
                       ],
                       [

-                        LINE=`grep "$3" ${wx_arg_cache_file}`
-                        if test "x$LINE" != x ; then
-                          eval "DEFAULT_$LINE"
-                        else
-                          no_cache=1
-                        fi
-
-                        ac_cv_use_$1='$3='$DEFAULT_$3
+                        AS_TR_SH(wx_cv_use_$1)='$3=${'DEFAULT_$3":-$defaultval}"

                       ])
 
                       ])
 

-          eval "$ac_cv_use_$1"
-          if test "$no_cache" != 1; then
-            echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
-          fi
+          eval "$AS_TR_SH(wx_cv_use_$1)"

 
 

-          if test "$$3" = yes; then
-            AC_MSG_RESULT(yes)
+          if test x"$withstring" = xwithout; then
+            if test $$3 = yes; then
+              result=no
+            else
+              result=yes
+            fi

           else
           else

-            AC_MSG_RESULT(no)
+            result=$$3

           fi
           fi

+
+          AC_MSG_RESULT($result)

         ])
 
         ])
 

+dnl same as WX_ARG_WITH but makes it clear that the option is enabled by default
+AC_DEFUN([WX_ARG_WITHOUT], [WX_ARG_WITH($1, [$2], $3, without)])
+

 dnl like WX_ARG_WITH but uses AC_ARG_ENABLE instead of AC_ARG_WITH
 dnl like WX_ARG_WITH but uses AC_ARG_ENABLE instead of AC_ARG_WITH

-dnl usage: WX_ARG_ENABLE(option, helpmessage, variable-name, enablestring)
+dnl usage: WX_ARG_ENABLE(option, helpmessage, var, [enablestring], [default])

 dnl
 dnl

-dnl enablestring is a hack and allows to show "checking for --disable-foo"
-dnl message when running configure instead of the default "checking for
-dnl --enable-foo" one whih is useful for the options enabled by default
+dnl enablestring can be omitted or a literal string "disable" and allows to
+dnl show "checking for --disable-foo" message when running configure instead of
+dnl the default "checking for --enable-foo" one whih is useful for the options
+dnl enabled by default
+dnl
+dnl the "default" argument can be omitted or contain the default value to use
+dnl for the option if it's unspecified

 AC_DEFUN([WX_ARG_ENABLE],
         [
 AC_DEFUN([WX_ARG_ENABLE],
         [

-         enablestring=$4
+          enablestring=$4
+          defaultval=$5
+          if test -z "$defaultval"; then
+              if test x"$enablestring" = xdisable; then
+                  defaultval=yes
+              else
+                  defaultval=no
+              fi
+          fi
+

           AC_MSG_CHECKING([for --${enablestring:-enable}-$1])
           AC_MSG_CHECKING([for --${enablestring:-enable}-$1])

-          no_cache=0

           AC_ARG_ENABLE($1, [$2],
                         [
                           if test "$enableval" = yes; then
           AC_ARG_ENABLE($1, [$2],
                         [
                           if test "$enableval" = yes; then

-                            ac_cv_use_$1='$3=yes'
+                            AS_TR_SH(wx_cv_use_$1)='$3=yes'

                           else
                           else

-                            ac_cv_use_$1='$3=no'
+                            AS_TR_SH(wx_cv_use_$1)='$3=no'

                           fi
                         ],
                         [
                           fi
                         ],
                         [

-                          LINE=`grep "$3" ${wx_arg_cache_file}`
-                          if test "x$LINE" != x ; then
-                            eval "DEFAULT_$LINE"
-                          else
-                            no_cache=1
-                          fi
-
-                          ac_cv_use_$1='$3='$DEFAULT_$3
+                          AS_TR_SH(wx_cv_use_$1)='$3=${'DEFAULT_$3":-$defaultval}"

                         ])
 
                         ])
 

-          eval "$ac_cv_use_$1"
-          if test "$no_cache" != 1; then
-            echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
-          fi
+          eval "$AS_TR_SH(wx_cv_use_$1)"

 
 

-          if test "$$3" = yes; then
-            AC_MSG_RESULT(yes)
+          if test x"$enablestring" = xdisable; then
+            if test $$3 = no; then
+              result=yes
+            else
+              result=no
+            fi

           else
           else

-            AC_MSG_RESULT(no)
+            result=$$3

           fi
           fi

+
+          AC_MSG_RESULT($result)

         ])
 
         ])
 

+dnl the same as WX_ARG_ENABLE but makes it more clear that the option is
+dnl enabled by default
+AC_DEFUN([WX_ARG_DISABLE], [WX_ARG_ENABLE($1, [$2], $3, disable)])
+
+dnl same as WX_ARG_ENABLE but defaults to wxUSE_ALL_FEATURES instead of "yes"
+AC_DEFUN([WX_ARG_FEATURE], [WX_ARG_ENABLE($1, [$2], $3,, $wxUSE_ALL_FEATURES)])
+
+dnl Like WX_ARG_ENABLE but accepts a parameter.
+dnl
+dnl Usage:
+dnl   WX_ARG_ENABLE_PARAM(option, helpmessage, variable-name, enablestring)
+dnl
+dnl Example:
+dnl   WX_ARG_ENABLE_PARAM(foo, [[  --enable-foo[=bar] use foo]], wxUSE_FOO)
+dnl
+dnl  --enable-foo       wxUSE_FOO=yes
+dnl  --disable-foo      wxUSE_FOO=no
+dnl  --enable-foo=bar   wxUSE_FOO=bar
+dnl  <not given>        wxUSE_FOO=$DEFAULT_wxUSE_FOO
+dnl
+AC_DEFUN([WX_ARG_ENABLE_PARAM],
+        [
+          enablestring=$4
+          AC_MSG_CHECKING([for --${enablestring:-enable}-$1])
+          AC_ARG_ENABLE($1, [$2],
+                        [
+                          wx_cv_use_$1="$3='$enableval'"
+                        ],
+                        [
+                          wx_cv_use_$1='$3='$DEFAULT_$3
+                        ])
+
+          eval "$wx_cv_use_$1"
+
+          AC_MSG_RESULT([$$3])
+        ])

 
 dnl ===========================================================================
 dnl Linker features test
 
 dnl ===========================================================================
 dnl Linker features test


@@ -462,44 +552,80 @@ dnl call WX_VERSIONED_SYMBOLS(versionfile)
 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_VERSIONED_SYMBOLS],
 [
 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_VERSIONED_SYMBOLS],
 [

-  found_versioning=no
-
-  dnl FIXME - doesn't work, Solaris linker doesn't accept wildcards
-  dnl         in the script.
-  dnl dnl Check for known non-gcc cases:
-  dnl case "${host}" in
-  dnl   *-*-solaris2* )
-  dnl     if test "x$GCC" != "xyes" ; then
-  dnl         LDFLAGS_VERSIONING="-M $1"
-  dnl         found_versioning=yes
-  dnl     fi
-  dnl   ;;
-  dnl esac
-  
-  dnl Generic check for GCC or GCC-like behaviour (Intel C++, GCC):
-  if test $found_versioning = no ; then
-      AC_CACHE_CHECK([if the linker accepts --version-script], wx_cv_version_script,
-      [
-        echo "VER_1 { *; };" >conftest.sym
-        echo "int main() { return 0; }" >conftest.cpp
-  
-        if AC_TRY_COMMAND([
-                $CXX -o conftest.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
-                -Wl,--version-script,conftest.sym >/dev/null 2>conftest.stderr]) ; then
-          if test -s conftest.stderr ; then
-              wx_cv_version_script=no
-          else
-              wx_cv_version_script=yes
-          fi
-        else
-          wx_cv_version_script=no
-        fi
-        rm -f conftest.output conftest.stderr conftest.sym conftest.cpp
-      ])
-      if test $wx_cv_version_script = yes ; then
-        LDFLAGS_VERSIONING="-Wl,--version-script,$1"
-      fi
-  fi
+    case "${host}" in
+        *-*-cygwin* | *-*-mingw* )
+            dnl although ld does support version script option on these
+            dnl platforms, it doesn't make much sense to use it under Win32
+            dnl and, moreover, this breaks linking because of a bug in handling
+            dnl paths in -Wl,--version-script,path option (if we ever do need
+            dnl to use it for cygwin/mingw32, keep in mind that replacing last
+            dnl comma with the equal sign works) so
+            dnl simply disable it
+            wx_cv_version_script=no
+            ;;
+
+        *)
+            AC_CACHE_CHECK([if the linker accepts --version-script], wx_cv_version_script,
+            [
+                echo "VER_1 { *; };" >conftest.sym
+                echo "int main() { return 0; }" >conftest.cpp
+
+                if AC_TRY_COMMAND([
+                        $CXX -o conftest.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
+                        -Wl,--version-script,conftest.sym >/dev/null 2>conftest.stderr]) ; then
+                  if test -s conftest.stderr ; then
+                      wx_cv_version_script=no
+                  else
+                      wx_cv_version_script=yes
+                  fi
+                else
+                  wx_cv_version_script=no
+                fi
+
+                dnl There's a problem in some old linkers with --version-script that
+                dnl can cause linking to fail when you have objects with vtables in
+                dnl libs 3 deep.  This is known to happen in netbsd and openbsd with
+                dnl ld 2.11.2.
+                dnl
+                dnl To test for this we need to make some shared libs and
+                dnl unfortunately we can't be sure of the right way to do that. If the
+                dnl first two compiles don't succeed then it looks like the test isn't
+                dnl working and the result is ignored, but if OTOH the first two
+                dnl succeed but the third does not then the bug has been detected and
+                dnl the --version-script flag is dropped.
+                if test $wx_cv_version_script = yes
+                then
+                  echo "struct B { virtual ~B() { } }; \
+                        struct D : public B { }; \
+                        void F() { D d; }" > conftest.cpp
+
+                  if AC_TRY_COMMAND([
+                        $CXX -shared -fPIC -o conftest1.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
+                        -Wl,--version-script,conftest.sym >/dev/null 2>/dev/null]) &&
+                     AC_TRY_COMMAND([
+                        $CXX -shared -fPIC -o conftest2.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
+                        -Wl,--version-script,conftest.sym conftest1.output >/dev/null 2>/dev/null])
+                  then
+                    if AC_TRY_COMMAND([
+                          $CXX -shared -fPIC -o conftest3.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
+                          -Wl,--version-script,conftest.sym conftest2.output conftest1.output >/dev/null 2>/dev/null])
+                    then
+                      wx_cv_version_script=yes
+                    else
+                      wx_cv_version_script=no
+                    fi
+                  fi
+                fi
+
+                rm -f conftest.output conftest.stderr conftest.sym conftest.cpp
+                rm -f conftest1.output conftest2.output conftest3.output
+            ])
+
+            if test $wx_cv_version_script = yes ; then
+                LDFLAGS_VERSIONING="-Wl,--version-script,$1"
+            fi
+            ;;
+    esac

 ])
 
 
 ])
 
 


@@ -648,79 +774,3 @@ if test "$enable_largefile" != no; then
 fi
 ])
 
 fi
 ])
 

-
-dnl Available from the GNU Autoconf Macro Archive at:
-dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_const_cast.html
-dnl
-AC_DEFUN([AC_CXX_CONST_CAST],
-[AC_CACHE_CHECK(whether the compiler supports const_cast<>,
-ac_cv_cxx_const_cast,
-[AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE(,[int x = 0;const int& y = x;int& z = const_cast<int&>(y);return z;],
- ac_cv_cxx_const_cast=yes, ac_cv_cxx_const_cast=no)
- AC_LANG_RESTORE
-])
-if test "$ac_cv_cxx_const_cast" = yes; then
-  AC_DEFINE(HAVE_CONST_CAST,,[define if the compiler supports const_cast<>])
-fi
-])
-
-dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_reinterpret_cast.html
-AC_DEFUN([AC_CXX_REINTERPRET_CAST],
-[AC_CACHE_CHECK(whether the compiler supports reinterpret_cast<>,
-ac_cv_cxx_reinterpret_cast,
-[AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <typeinfo>
-class Base { public : Base () {} virtual void f () = 0;};
-class Derived : public Base { public : Derived () {} virtual void f () {} };
-class Unrelated { public : Unrelated () {} };
-int g (Unrelated&) { return 0; }],[
-Derived d;Base& b=d;Unrelated& e=reinterpret_cast<Unrelated&>(b);return g(e);],
- ac_cv_cxx_reinterpret_cast=yes, ac_cv_cxx_reinterpret_cast=no)
- AC_LANG_RESTORE
-])
-if test "$ac_cv_cxx_reinterpret_cast" = yes; then
-  AC_DEFINE(HAVE_REINTERPRET_CAST,,
-            [define if the compiler supports reinterpret_cast<>])
-fi
-])
-
-dnl and http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_static_cast.html
-AC_DEFUN([AC_CXX_STATIC_CAST],
-[AC_CACHE_CHECK(whether the compiler supports static_cast<>,
-ac_cv_cxx_static_cast,
-[AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <typeinfo>
-class Base { public : Base () {} virtual void f () = 0; };
-class Derived : public Base { public : Derived () {} virtual void f () {} };
-int g (Derived&) { return 0; }],[
-Derived d; Base& b = d; Derived& s = static_cast<Derived&> (b); return g (s);],
- ac_cv_cxx_static_cast=yes, ac_cv_cxx_static_cast=no)
- AC_LANG_RESTORE
-])
-if test "$ac_cv_cxx_static_cast" = yes; then
-  AC_DEFINE(HAVE_STATIC_CAST,, [define if the compiler supports static_cast<>])
-fi
-])
-
-dnl http://autoconf-archive.cryp.to/ac_cxx_dynamic_cast.html
-AC_DEFUN([AC_CXX_DYNAMIC_CAST],
-[AC_CACHE_CHECK(whether the compiler supports dynamic_cast<>,
-ac_cv_cxx_dynamic_cast,
-[AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <typeinfo>
-class Base { public : Base () {} virtual void f () = 0;};
-class Derived : public Base { public : Derived () {} virtual void f () {} };],[
-Derived d; Base& b=d; return dynamic_cast<Derived*>(&b) ? 0 : 1;],
- ac_cv_cxx_dynamic_cast=yes, ac_cv_cxx_dynamic_cast=no)
- AC_LANG_RESTORE
-])
-if test "$ac_cv_cxx_dynamic_cast" = yes; then
-  AC_DEFINE(HAVE_DYNAMIC_CAST,,[define if the compiler supports dynamic_cast<>])
-fi
-])
-