[gtk+] win32: Fix build

[Alexander Larsson <alexl src gnome org>]

commit 8c61659225a6fda9cfec8b58b04b04688b21ad39
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Apr 11 11:22:27 2013 +0200

    win32: Fix build
    
    Need to take ".exe" into account for file dependencies on win32.

 gtk/Makefile.am |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index b0ecaef..99f0e33 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -1124,8 +1124,8 @@ template_headers = $(COMPOSITE_TEMPLATES:.ui=.ui.h)
 
 MAINTAINERCLEANFILES += $(template_headers)
 
-%.ui.h: %.ui extract-strings
-       $(AM_V_GEN) ./extract-strings $< > $@
+%.ui.h: %.ui extract-strings$(EXEEXT)
+       $(AM_V_GEN) ./extract-strings$(EXEEXT) $< > $@
 
 #
 # rules to generate built sources