[gtk+] Unbreak win32 build

[Alexander Larsson <alexl src gnome org>]

commit aae60af8a3376d57bd9faf68239a22e9c960fa04
Author: Alexander Larsson <alexl redhat com>
Date:   Fri Mar 16 10:32:06 2012 +0100

    Unbreak win32 build
    
    Commit de62a1096 broke win32 as it removed the HAVE_X11R6 checks for
    building xim, but did not replace them with USE_X11. This made
    it try to build xim on non-X targets.

 modules/input/Makefile.am |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/modules/input/Makefile.am b/modules/input/Makefile.am
index da989eb..46e00fb 100644
--- a/modules/input/Makefile.am
+++ b/modules/input/Makefile.am
@@ -30,11 +30,13 @@ im_xim_la_SOURCES = 		\
 	imxim.c
 libstatic_im_xim_la_SOURCES = $(im_xim_la_SOURCES)
 im_xim_la_LIBADD = $(LDADDS)
+if USE_X11
 if INCLUDE_IM_XIM
 STATIC_XIM_MODULE = libstatic-im-xim.la
 else
 XIM_MODULE=im-xim.la
 endif
+endif
 
 im_am_et_la_LDFLAGS = -rpath $(moduledir) -avoid-version -module $(no_undefined)
 im_am_et_la_SOURCES = imam-et.c