[gthumb] added zlib in PKG_CHECK_MODULES for GTHUMB

[Paolo Bacchilega <paobac src gnome org>]

commit acc1e402fe0be95d41805e3b9cf1034c251fc0df
Author: xcsnake free fr <xcsnake free fr>
Date:   Sat Jan 28 17:56:57 2012 +0100

    added zlib in PKG_CHECK_MODULES for GTHUMB

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 4fb297b..59dc87f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -136,6 +136,7 @@ PKG_CHECK_MODULES(GTHUMB, [
 	gio-unix-2.0
 	gtk+-3.0 		>= $GTK_REQUIRED
 	libpng
+	zlib
 ])
 AC_SUBST(GTHUMB_LIBS)
 AC_SUBST(GTHUMB_CFLAGS)