[evince] unarr: Use zlib's crc32 instead of an internal implementation

[Bastien Nocera <hadess src gnome org>]

commit 670bc9257476edd24c845aa35b692db909d80c73
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Jul 19 19:34:28 2017 +0200

    unarr: Use zlib's crc32 instead of an internal implementation
    
    https://bugzilla.gnome.org/show_bug.cgi?id=785141

 cut-n-paste/unarr/Makefile.am |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/cut-n-paste/unarr/Makefile.am b/cut-n-paste/unarr/Makefile.am
index 75de17d..e6a49e2 100644
--- a/cut-n-paste/unarr/Makefile.am
+++ b/cut-n-paste/unarr/Makefile.am
@@ -28,6 +28,9 @@ libunarr_la_SOURCES =         \
        lzmasdk/Ppmd7.c         \
        lzmasdk/Ppmd.h
 
+libunarr_la_CPPFLAGS = -DHAVE_ZLIB
+libunarr_la_LIBADD = $(ZLIB_LIBS)
+
 EXTRA_DIST = COPYING AUTHORS
 
 -include $(top_srcdir)/git.mk