[gtk+] inspector: Fix build with quartz backend

[Juan R. Garcia Blanco <juanrgar src gnome org>]

commit 15c34b22d2874d71505e93899083a355b8a8302c
Author: Juan R. Garcia Blanco <juanrgar gmail com>
Date:   Sat Jun 7 10:50:27 2014 +0200

    inspector: Fix build with quartz backend
    
    Add -xobjective-c to libgtkinspector_la_CFLAGS to handle objc headers.

 gtk/inspector/Makefile.am |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtk/inspector/Makefile.am b/gtk/inspector/Makefile.am
index 72777d7..0ef0a6f 100644
--- a/gtk/inspector/Makefile.am
+++ b/gtk/inspector/Makefile.am
@@ -79,6 +79,10 @@ libgtkinspector_la_CFLAGS =          \
        $(GTK_DEBUG_FLAGS)              \
        $(AM_CFLAGS)
 
+if USE_QUARTZ
+libgtkinspector_la_CFLAGS += "-xobjective-c"
+endif # USE_QUARTZ
+
 libgtkinspector_la_LIBADD =            \
        $(GTK_DEP_LIBS)                 \
        $(INTLLIBS)