+ if test "$wxUSE_VISIBILITY" != "no"; then
+
+
+ if test -n "$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.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ /* we need gcc >= 4.0, older versions with visibility support
+ didn't have class visibility: */
+ #if defined(__GNUC__) && __GNUC__ < 4
+ error this gcc is too old;
+ #endif
+
+ /* visibility only makes sense for ELF shared libs: */
+ #if !defined(__ELF__) && !defined(__APPLE__)
+ error this platform has no visibility;
+ #endif
+
+ extern __attribute__((__visibility__("hidden"))) int hiddenvar;
+ extern __attribute__((__visibility__("default"))) int exportedvar;
+ extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void);
+ extern __attribute__((__visibility__("default"))) int exportedfunc (void);
+ class __attribute__((__visibility__("default"))) Foo {
+ Foo() {}
+ };
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$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 $wx_cv_cc_visibility = yes; then
+ { echo "$as_me:$LINENO: checking for broken libstdc++ visibility" >&5
+echo $ECHO_N "checking for broken libstdc++ visibility... $ECHO_C" >&6; }
+ if test "${wx_cv_cc_broken_libstdcxx_visibility+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ wx_save_CXXFLAGS="$CXXFLAGS"
+ wx_save_LDFLAGS="$LDFLAGS"
+ CXXFLAGS="$CXXFLAGS $CXXFLAGS_VISIBILITY"
+ LDFLAGS="$LDFLAGS -shared -fPIC"
+ 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.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ #include <string>
+
+int
+main ()
+{
+
+ std::string s("hello");
+ return s.length();
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+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_link") 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_exeext &&
+ $as_test_x conftest$ac_exeext; then
+ wx_cv_cc_broken_libstdcxx_visibility=no
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ wx_cv_cc_broken_libstdcxx_visibility=yes
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+ conftest$ac_exeext 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="$wx_save_CXXFLAGS"
+ LDFLAGS="$wx_save_LDFLAGS"
+fi
+
+ { echo "$as_me:$LINENO: result: $wx_cv_cc_broken_libstdcxx_visibility" >&5
+echo "${ECHO_T}$wx_cv_cc_broken_libstdcxx_visibility" >&6; }
+
+ if test $wx_cv_cc_broken_libstdcxx_visibility = yes; then
+ { echo "$as_me:$LINENO: checking whether we can work around it" >&5
+echo $ECHO_N "checking whether we can work around it... $ECHO_C" >&6; }
+ if test "${wx_cv_cc_visibility_workaround+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ ac_ext=cpp
+ac_cpp='$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.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ #pragma GCC visibility push(default)
+ #include <string>
+ #pragma GCC visibility pop
+
+int
+main ()
+{
+
+ std::string s("hello");
+ return s.length();
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+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_link") 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_exeext &&
+ $as_test_x conftest$ac_exeext; then
+ wx_cv_cc_visibility_workaround=no
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ wx_cv_cc_visibility_workaround=yes
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+ conftest$ac_exeext 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
+
+
+fi
+
+ { echo "$as_me:$LINENO: result: $wx_cv_cc_visibility_workaround" >&5
+echo "${ECHO_T}$wx_cv_cc_visibility_workaround" >&6; }
+
+ if test $wx_cv_cc_visibility_workaround = no; then
+ wx_cv_cc_visibility=no
+ fi
+ fi
+ fi
+
+ if test $wx_cv_cc_visibility = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_VISIBILITY 1
+_ACEOF
+
+ if test $wx_cv_cc_broken_libstdcxx_visibility = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_BROKEN_LIBSTDCXX_VISIBILITY 1
+_ACEOF
+
+ fi
+ else
+ CFLAGS_VISIBILITY=""
+ CXXFLAGS_VISIBILITY=""
+ fi
+
+
+ fi
+
+ fi
+
+ if test "x$SUNCXX" = xyes; then
+ SAMPLES_RPATH_FLAG="-R\$(wx_top_builddir)/lib"
+ WXCONFIG_RPATH="-R\$libdir"
+ else
projects / wxWidgets.git / blobdiff