Add wxDynamicLibrary::GetModuleFromAddress().

Use dladdr() under Unix, if available, to provide the same functionality as we
get from GetModuleHandleEx() under MSW and export it in a new public function.

Closes #15248.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76114 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure

@@ -33348,6 +33348,63 @@ fi
 
 
 
+fi
+done
+
+                for ac_func in dladdr
+do :
+  ac_fn_c_check_func "$LINENO" "dladdr" "ac_cv_func_dladdr"
+if test "x$ac_cv_func_dladdr" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DLADDR 1
+_ACEOF
+ $as_echo "#define HAVE_DLADDR 1" >>confdefs.h
+
+else
+
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dladdr in -ldl" >&5
+$as_echo_n "checking for dladdr in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dladdr+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dladdr ();
+int
+main ()
+{
+return dladdr ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dladdr=yes
+else
+  ac_cv_lib_dl_dladdr=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dladdr" >&5
+$as_echo "$ac_cv_lib_dl_dladdr" >&6; }
+if test "x$ac_cv_lib_dl_dladdr" = xyes; then :
+  $as_echo "#define HAVE_DLADDR 1" >>confdefs.h
+
+fi
+
+
+
 fi
 done