[evince] Add zlib to linker flags to avoid undefined symbols on win32

[Carlos Garcia Campos <carlosgc src gnome org>]

commit b544d50d45d476a523fbb55c564eb8b6dd015cac
Author: Fridrich Strba <fridrich strba bluewin ch>
Date:   Wed Jun 10 21:06:49 2009 +0200

    Add zlib to linker flags to avoid undefined symbols on win32

 backend/impress/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/backend/impress/Makefile.am b/backend/impress/Makefile.am
index d6213f7..02305f3 100644
--- a/backend/impress/Makefile.am
+++ b/backend/impress/Makefile.am
@@ -43,7 +43,7 @@ IMPOSTER_RENDER_INCLUDE_FILES =		\
 libimpressdocument_la_LDFLAGS = $(BACKEND_LIBTOOL_FLAGS)
 libimpressdocument_la_LIBADD =				\
 	$(top_builddir)/libdocument/libevdocument.la     \
-	$(BACKEND_LIBS)
+	$(BACKEND_LIBS) -lz
 
 backend_in_files = impressdocument.evince-backend.in