wxgtk-3.0: accept '-stdlib=' option

Closes: https://trac.macports.org/ticket/57092

graphics/wxWidgets-3.0/files/patch-configure.diff

@@ -1,4 +1,5 @@
-This patch is needed for GTK to make sure that the port finds the right OpenGL library
+The first patch is needed for GTK to make sure that the port finds the right OpenGL library
+The second patch is for https://trac.macports.org/ticket/57092
 --- configure.orig
 +++ configure
 @@ -22047,48 +22047,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
@@ -51,3 +52,15 @@ This patch is needed for GTK to make sure that the port finds the right OpenGL l
 
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libraries directories" >&5
  $as_echo_n "checking for libraries directories... " >&6; }
+@@ -39278,6 +39242,11 @@ while test ${D}# -gt 0; do
+         args="${D}{args} ${D}1"
+         ;;
+
++       -stdlib*)
++        # collect these options
++        args="${D}{args} ${D}1"
++        ;;
++
+        -dynamiclib|-bundle)
+         linking_flag="${D}1"
+         ;;