added GCC visibility support

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47255 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

aclocal.m4

@@ -1,7 +1,7 @@
-# generated automatically by aclocal 1.9.6 -*- Autoconf -*-
+# generated automatically by aclocal 1.10 -*- Autoconf -*-
 
 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-# 2005  Free Software Foundation, Inc.
+# 2005, 2006  Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -11,6 +11,8 @@
 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 # PARTICULAR PURPOSE.
 
+m4_include([build/aclocal/ac_raf_func_which_getservbyname_r.m4])
+m4_include([build/aclocal/ax_func_which_gethostbyname_r.m4])
 m4_include([build/aclocal/bakefile-dllar.m4])
 m4_include([build/aclocal/bakefile-lang.m4])
 m4_include([build/aclocal/bakefile.m4])
@@ -19,6 +21,5 @@ m4_include([build/aclocal/gtk-2.0.m4])
 m4_include([build/aclocal/gtk.m4])
 m4_include([build/aclocal/pkg.m4])
 m4_include([build/aclocal/sdl.m4])
-m4_include([build/aclocal/ax_func_which_gethostbyname_r.m4])
+m4_include([build/aclocal/visibility.m4])
-m4_include([build/aclocal/ac_raf_func_which_getservbyname_r.m4])
 m4_include([acinclude.m4])

build/aclocal/visibility.m4

@@ -0,0 +1,70 @@
+dnl visibility.m4 serial 1 (gettext-0.15)
+dnl Copyright (C) 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+
+dnl Modified for use in wxWidgets by Vaclav Slavik:
+dnl    - don't define HAVE_VISIBILITY (=0) if not supported
+dnl    - use -fvisibility-inlines-hidden too
+dnl    - test in C++ mode
+
+dnl Tests whether the compiler supports the command-line option
+dnl -fvisibility=hidden and the function and variable attributes
+dnl __attribute__((__visibility__("hidden"))) and
+dnl __attribute__((__visibility__("default"))).
+dnl Does *not* test for __visibility__("protected") - which has tricky
+dnl semantics (see the 'vismain' test in glibc) and does not exist e.g. on
+dnl MacOS X.
+dnl Does *not* test for __visibility__("internal") - which has processor
+dnl dependent semantics.
+dnl Does *not* test for #pragma GCC visibility push(hidden) - which is
+dnl "really only recommended for legacy code".
+dnl Set the variable CFLAG_VISIBILITY.
+dnl Defines and sets the variable HAVE_VISIBILITY.
+
+AC_DEFUN([WX_VISIBILITY],
+[
+  AC_REQUIRE([AC_PROG_CC])
+  if test -n "$GCC"; then
+    CFLAGS_VISIBILITY="-fvisibility=hidden"
+    CXXFLAGS_VISIBILITY="-fvisibility=hidden -fvisibility-inlines-hidden"
+    AC_MSG_CHECKING([for symbols visibility support])
+    AC_CACHE_VAL(wx_cv_cc_visibility, [
+      wx_save_CXXFLAGS="$CXXFLAGS"
+      CXXFLAGS="$CXXFLAGS $CXXFLAGS_VISIBILITY"
+      AC_LANG_PUSH(C++)
+      AC_TRY_COMPILE(
+        [
+         /* we need gcc >= 4.0, older versions with visibility support
+            didn't have class visibility: */
+         #if defined(__GNUC__) && __GNUC__ < 4
+         error this gcc is too old;
+         #endif
+          
+         extern __attribute__((__visibility__("hidden"))) int hiddenvar;
+         extern __attribute__((__visibility__("default"))) int exportedvar;
+         extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void);
+         extern __attribute__((__visibility__("default"))) int exportedfunc (void);
+         class __attribute__((__visibility__("default"))) Foo {
+           Foo() {}
+         };
+        ],
+        [],
+        wx_cv_cc_visibility=yes,
+        wx_cv_cc_visibility=no)
+      AC_LANG_POP()
+      CXXFLAGS="$wx_save_CXXFLAGS"])
+    AC_MSG_RESULT([$wx_cv_cc_visibility])
+    if test $wx_cv_cc_visibility = yes; then
+      AC_DEFINE([HAVE_VISIBILITY])
+    else
+      CFLAGS_VISIBILITY=""
+      CXXFLAGS_VISIBILITY=""
+    fi
+    AC_SUBST([CFLAGS_VISIBILITY])
+    AC_SUBST([CXXFLAGS_VISIBILITY])
+  fi
+])

build/autogen.mk

@@ -58,7 +58,8 @@ ACLOCAL_SOURCES = \
   build/aclocal/gtk-2.0.m4 \
   build/aclocal/gtk.m4 \
   build/aclocal/pkg.m4 \
-  build/aclocal/sdl.m4
+  build/aclocal/sdl.m4 \
+  build/aclocal/visibility.m4
 
 # Run aclocal whenever acinclude or one of our local m4s is updated.
 aclocal.m4: configure.in acinclude.m4 $(ACLOCAL_SOURCES)

configure

@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Id: configure.in 46713 2007-06-26 20:44:58Z VS .
+# From configure.in Id: configure.in 47230 2007-07-08 07:04:38Z VS .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for wxWidgets 2.9.0.
 #
@@ -707,6 +707,8 @@ PANGOFT2_CFLAGS
 PANGOFT2_LIBS
 PANGOXFT_CFLAGS
 PANGOXFT_LIBS
+CFLAGS_VISIBILITY
+CXXFLAGS_VISIBILITY
 REZ
 DEREZ
 SETFILE
@@ -33096,6 +33098,105 @@ echo "${ECHO_T}$wx_cv_version_script" >&6; }
     esac
 
 
+
+
+  if test -n "$GCC"; then
+    CFLAGS_VISIBILITY="-fvisibility=hidden"
+    CXXFLAGS_VISIBILITY="-fvisibility=hidden -fvisibility-inlines-hidden"
+    { echo "$as_me:$LINENO: checking for symbols visibility support" >&5
+echo $ECHO_N "checking for symbols visibility support... $ECHO_C" >&6; }
+    if test "${wx_cv_cc_visibility+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+      wx_save_CXXFLAGS="$CXXFLAGS"
+      CXXFLAGS="$CXXFLAGS $CXXFLAGS_VISIBILITY"
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+         /* we need gcc >= 4.0, older versions with visibility support
+            didn't have class visibility: */
+         #if defined(__GNUC__) && __GNUC__ < 4
+         error this gcc is too old;
+         #endif
+
+         extern __attribute__((__visibility__("hidden"))) int hiddenvar;
+         extern __attribute__((__visibility__("default"))) int exportedvar;
+         extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void);
+         extern __attribute__((__visibility__("default"))) int exportedfunc (void);
+         class __attribute__((__visibility__("default"))) Foo {
+           Foo() {}
+         };
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  wx_cv_cc_visibility=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	wx_cv_cc_visibility=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      CXXFLAGS="$wx_save_CXXFLAGS"
+fi
+
+    { echo "$as_me:$LINENO: result: $wx_cv_cc_visibility" >&5
+echo "${ECHO_T}$wx_cv_cc_visibility" >&6; }
+    if test $wx_cv_cc_visibility = yes; then
+      cat >>confdefs.h <<\_ACEOF
+#define HAVE_VISIBILITY 1
+_ACEOF
+
+    else
+      CFLAGS_VISIBILITY=""
+      CXXFLAGS_VISIBILITY=""
+    fi
+
+
+  fi
+
+
         if test "x$SUNCXX" = xyes; then
         SAMPLES_RPATH_FLAG="-R\$(wx_top_builddir)/lib"
         WXCONFIG_RPATH="-R\$libdir"
@@ -49482,6 +49583,9 @@ case "${host}" in
         ;;
 esac
 
+CFLAGS="$CFLAGS $CFLAGS_VISIBILITY"
+CXXFLAGS="$CXXFLAGS $CXXFLAGS_VISIBILITY"
+
 SAMPLES_SUBDIRS="`echo $SAMPLES_SUBDIRS | tr -s ' ' | tr ' ' '\n' | sort | uniq | tr '\n' ' '| tr -d '\r'`"
 
 
@@ -50511,12 +50615,12 @@ PANGOFT2_CFLAGS!$PANGOFT2_CFLAGS$ac_delim
 PANGOFT2_LIBS!$PANGOFT2_LIBS$ac_delim
 PANGOXFT_CFLAGS!$PANGOXFT_CFLAGS$ac_delim
 PANGOXFT_LIBS!$PANGOXFT_LIBS$ac_delim
+CFLAGS_VISIBILITY!$CFLAGS_VISIBILITY$ac_delim
+CXXFLAGS_VISIBILITY!$CXXFLAGS_VISIBILITY$ac_delim
 REZ!$REZ$ac_delim
 DEREZ!$DEREZ$ac_delim
 SETFILE!$SETFILE$ac_delim
 LIBICONV!$LIBICONV$ac_delim
-SDL_CONFIG!$SDL_CONFIG$ac_delim
-SDL_CFLAGS!$SDL_CFLAGS$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -50558,6 +50662,8 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+SDL_CONFIG!$SDL_CONFIG$ac_delim
+SDL_CFLAGS!$SDL_CFLAGS$ac_delim
 SDL_LIBS!$SDL_LIBS$ac_delim
 LIBGNOMEPRINTUI_CFLAGS!$LIBGNOMEPRINTUI_CFLAGS$ac_delim
 LIBGNOMEPRINTUI_LIBS!$LIBGNOMEPRINTUI_LIBS$ac_delim
@@ -50653,8 +50759,6 @@ COND_BUILD_DEBUG!$COND_BUILD_DEBUG$ac_delim
 COND_BUILD_DEBUG_DEBUG_FLAG_DEFAULT!$COND_BUILD_DEBUG_DEBUG_FLAG_DEFAULT$ac_delim
 COND_BUILD_DEBUG_DEBUG_INFO_DEFAULT!$COND_BUILD_DEBUG_DEBUG_INFO_DEFAULT$ac_delim
 COND_BUILD_DEBUG_UNICODE_0!$COND_BUILD_DEBUG_UNICODE_0$ac_delim
-COND_BUILD_DEBUG_UNICODE_1!$COND_BUILD_DEBUG_UNICODE_1$ac_delim
-COND_BUILD_RELEASE!$COND_BUILD_RELEASE$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -50696,6 +50800,8 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+COND_BUILD_DEBUG_UNICODE_1!$COND_BUILD_DEBUG_UNICODE_1$ac_delim
+COND_BUILD_RELEASE!$COND_BUILD_RELEASE$ac_delim
 COND_BUILD_RELEASE_DEBUG_INFO_DEFAULT!$COND_BUILD_RELEASE_DEBUG_INFO_DEFAULT$ac_delim
 COND_BUILD_RELEASE_UNICODE_0!$COND_BUILD_RELEASE_UNICODE_0$ac_delim
 COND_BUILD_RELEASE_UNICODE_1!$COND_BUILD_RELEASE_UNICODE_1$ac_delim
@@ -50791,8 +50897,6 @@ COND_TOOLKIT_!$COND_TOOLKIT_$ac_delim
 COND_TOOLKIT_COCOA!$COND_TOOLKIT_COCOA$ac_delim
 COND_TOOLKIT_COCOA_USE_GUI_1!$COND_TOOLKIT_COCOA_USE_GUI_1$ac_delim
 COND_TOOLKIT_COCOA_USE_GUI_1_WXUNIV_0!$COND_TOOLKIT_COCOA_USE_GUI_1_WXUNIV_0$ac_delim
-COND_TOOLKIT_DFB!$COND_TOOLKIT_DFB$ac_delim
-COND_TOOLKIT_DFB_USE_GUI_1!$COND_TOOLKIT_DFB_USE_GUI_1$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -50834,6 +50938,8 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+COND_TOOLKIT_DFB!$COND_TOOLKIT_DFB$ac_delim
+COND_TOOLKIT_DFB_USE_GUI_1!$COND_TOOLKIT_DFB_USE_GUI_1$ac_delim
 COND_TOOLKIT_GTK!$COND_TOOLKIT_GTK$ac_delim
 COND_TOOLKIT_GTK_TOOLKIT_VERSION_!$COND_TOOLKIT_GTK_TOOLKIT_VERSION_$ac_delim
 COND_TOOLKIT_GTK_TOOLKIT_VERSION_2!$COND_TOOLKIT_GTK_TOOLKIT_VERSION_2$ac_delim
@@ -50929,8 +51035,6 @@ GUIDIST!$GUIDIST$ac_delim
 DISTDIR!$DISTDIR$ac_delim
 SAMPLES_SUBDIRS!$SAMPLES_SUBDIRS$ac_delim
 LDFLAGS_GL!$LDFLAGS_GL$ac_delim
-OPENGL_LIBS!$OPENGL_LIBS$ac_delim
-DMALLOC_LIBS!$DMALLOC_LIBS$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -50972,6 +51076,8 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+OPENGL_LIBS!$OPENGL_LIBS$ac_delim
+DMALLOC_LIBS!$DMALLOC_LIBS$ac_delim
 WX_VERSION_TAG!$WX_VERSION_TAG$ac_delim
 RESCOMP!$RESCOMP$ac_delim
 RESFLAGS!$RESFLAGS$ac_delim
@@ -50987,7 +51093,7 @@ LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 13; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 15; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5

configure.in

@@ -4127,6 +4127,10 @@ if test "$wxUSE_SHARED" = "yes"; then
     dnl use versioned symbols if available on the platform
     WX_VERSIONED_SYMBOLS([\$(wx_top_builddir)/version-script])
 
+    dnl test for GCC's visibility support (sets CFLAGS_VISIBILITY, which is
+    dnl assigned to CFLAGS and CXXFLAGS below)
+    WX_VISIBILITY
+
     dnl test for Sun CC which can be used under both Solaris and Linux
     if test "x$SUNCXX" = xyes; then
         SAMPLES_RPATH_FLAG="-R\$(wx_top_builddir)/lib"
@@ -8075,6 +8079,11 @@ case "${host}" in
         ;;
 esac
 
+dnl Add visibility support flags to CFLAGS/CXXFLAGS - do it this late so that
+dnl it doesn't affect compilation checks above
+CFLAGS="$CFLAGS $CFLAGS_VISIBILITY"
+CXXFLAGS="$CXXFLAGS $CXXFLAGS_VISIBILITY"
+
 dnl for convenience, sort the samples in alphabetical order
 dnl
 dnl FIXME For some mysterious reasons, sometimes the directories are duplicated

include/wx/dlimpexp.h

@@ -16,7 +16,7 @@
 #ifndef _WX_DLIMPEXP_H_
 #define _WX_DLIMPEXP_H_
 
-#if defined(__WXMSW__)
+#if defined(__WINDOWS__)
     /*
        __declspec works in BC++ 5 and later, Watcom C++ 11.0 and later as well
        as VC++ and gcc
@@ -51,6 +51,9 @@
 #elif defined(__CYGWIN__)
 #    define WXEXPORT __declspec(dllexport)
 #    define WXIMPORT __declspec(dllimport)
+#elif defined(HAVE_VISIBILITY)
+#    define WXEXPORT __attribute__ ((visibility("default")))
+#    define WXIMPORT
 #endif
 
 /* for other platforms/compilers we don't anything */
@@ -240,21 +243,39 @@
 
 /* GCC warns about using __attribute__ on forward declarations, so we need
    another set of macros for them: */
-#define WXDLLIMPEXP_FWD_BASE      WXDLLIMPEXP_BASE
+#if defined(HAVE_VISIBILITY)
-#define WXDLLIMPEXP_FWD_NET       WXDLLIMPEXP_NET
+    #define WXDLLIMPEXP_FWD_BASE
-#define WXDLLIMPEXP_FWD_CORE      WXDLLIMPEXP_CORE
+    #define WXDLLIMPEXP_FWD_NET
-#define WXDLLIMPEXP_FWD_ADV       WXDLLIMPEXP_ADV
+    #define WXDLLIMPEXP_FWD_CORE
-#define WXDLLIMPEXP_FWD_QA        WXDLLIMPEXP_QA
+    #define WXDLLIMPEXP_FWD_ADV
-#define WXDLLIMPEXP_FWD_ODBC      WXDLLIMPEXP_ODBC
+    #define WXDLLIMPEXP_FWD_QA
-#define WXDLLIMPEXP_FWD_DBGRID    WXDLLIMPEXP_DBGRID
+    #define WXDLLIMPEXP_FWD_ODBC
-#define WXDLLIMPEXP_FWD_HTML      WXDLLIMPEXP_HTML
+    #define WXDLLIMPEXP_FWD_DBGRID
-#define WXDLLIMPEXP_FWD_GL        WXDLLIMPEXP_GL
+    #define WXDLLIMPEXP_FWD_HTML
-#define WXDLLIMPEXP_FWD_XML       WXDLLIMPEXP_XML
+    #define WXDLLIMPEXP_FWD_GL
-#define WXDLLIMPEXP_FWD_XRC       WXDLLIMPEXP_XRC
+    #define WXDLLIMPEXP_FWD_XML
-#define WXDLLIMPEXP_FWD_AUI       WXDLLIMPEXP_AUI
+    #define WXDLLIMPEXP_FWD_XRC
-#define WXDLLIMPEXP_FWD_RICHTEXT  WXDLLIMPEXP_RICHTEXT
+    #define WXDLLIMPEXP_FWD_AUI
-#define WXDLLIMPEXP_FWD_MEDIA     WXDLLIMPEXP_MEDIA
+    #define WXDLLIMPEXP_FWD_RICHTEXT
-#define WXDLLIMPEXP_FWD_STC       WXDLLIMPEXP_STC
+    #define WXDLLIMPEXP_FWD_MEDIA
+    #define WXDLLIMPEXP_FWD_STC
+#else
+    #define WXDLLIMPEXP_FWD_BASE      WXDLLIMPEXP_BASE
+    #define WXDLLIMPEXP_FWD_NET       WXDLLIMPEXP_NET
+    #define WXDLLIMPEXP_FWD_CORE      WXDLLIMPEXP_CORE
+    #define WXDLLIMPEXP_FWD_ADV       WXDLLIMPEXP_ADV
+    #define WXDLLIMPEXP_FWD_QA        WXDLLIMPEXP_QA
+    #define WXDLLIMPEXP_FWD_ODBC      WXDLLIMPEXP_ODBC
+    #define WXDLLIMPEXP_FWD_DBGRID    WXDLLIMPEXP_DBGRID
+    #define WXDLLIMPEXP_FWD_HTML      WXDLLIMPEXP_HTML
+    #define WXDLLIMPEXP_FWD_GL        WXDLLIMPEXP_GL
+    #define WXDLLIMPEXP_FWD_XML       WXDLLIMPEXP_XML
+    #define WXDLLIMPEXP_FWD_XRC       WXDLLIMPEXP_XRC
+    #define WXDLLIMPEXP_FWD_AUI       WXDLLIMPEXP_AUI
+    #define WXDLLIMPEXP_FWD_RICHTEXT  WXDLLIMPEXP_RICHTEXT
+    #define WXDLLIMPEXP_FWD_MEDIA     WXDLLIMPEXP_MEDIA
+    #define WXDLLIMPEXP_FWD_STC       WXDLLIMPEXP_STC
+#endif
 
 /* for backwards compatibility, define suffix-less versions too */
 #define WXDLLEXPORT WXDLLIMPEXP_CORE

setup.h.in

@@ -633,6 +633,11 @@
  */
 #undef HAVE_GNU_CXX_HASH_MAP
 
+/*
+ * Define if the compiler supports simple visibility declarations.
+ */
+#undef HAVE_VISIBILITY
+
 /*
  * The built-in regex supports advanced REs in additional to POSIX's basic
  * and extended. Your system regex probably won't support this, and in this

setup.h_vms

@@ -676,6 +676,11 @@ typedef pid_t GPid;
  */
 #undef HAVE_GNU_CXX_HASH_MAP
 
+/*
+ * Define if the compiler supports simple visibility declarations.
+ */
+#undef HAVE_VISIBILITY
+
 /*
  * The built-in regex supports advanced REs in additional to POSIX's basic
  * and extended. Your system regex probably won't support this, and in this

version-script.in

@@ -14,7 +14,6 @@
 #
 #   # public symbols added in release 2.6.2 (please keep in alphabetical order):
 #   @WX_VERSION_TAG@.2 {
-#       global:
 #           *wxChoice*GetCurrentSelection*;
 #   };
 #
@@ -28,6 +27,5 @@
 # generic branch tag (don't remove this!):
 
 @WX_VERSION_TAG@ {
-    global:
         *;
 };