From c03d1113c26e2a2a0817a53124c2c9bd7897b193 Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@debian.org>
Date: Tue, 5 Jul 2011 22:09:07 +0100
Subject: [PATCH] Add support for "make LINK_TO_ZLIB=1"

In Debian we want library dependencies to work in the conventional way,
since many tools expect that and use it to generate package
dependencies.

Origin: vendor, Debian
---
 makefile     | 5 +++++
 makefile.inc | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/makefile b/makefile
index 2b228049..1510b727 100644
--- a/makefile
+++ b/makefile
@@ -307,6 +307,11 @@ CFLAGS_LIBJPEG=-DLINK_TO_LIBJPEG
 LIB_JPEG=-ljpeg
 endif
 
+ifdef LINK_TO_ZLIB
+CFLAGS_ZLIB=-DLINK_TO_ZLIB
+LIB_ZLIB=-lz
+endif
+
 CFLAGS_PRELOAD=
 ifneq ($(DP_MAKE_TARGET), mingw)
 ifdef DP_PRELOAD_DEPENDENCIES
diff --git a/makefile.inc b/makefile.inc
index bb721e00..bd018bb2 100644
--- a/makefile.inc
+++ b/makefile.inc
@@ -193,6 +193,7 @@ CFLAGS_COMMON=\
 	$(CFLAGS_FS) \
 	$(CFLAGS_WARNINGS) \
 	$(CFLAGS_LIBJPEG) \
+	$(CFLAGS_ZLIB) \
 	$(CFLAGS_D3D) \
 	-D_FILE_OFFSET_BITS=64 \
 	-D__KERNEL_STRICT_NAMES
@@ -230,6 +231,7 @@ LDFLAGS_UNIXCOMMON=\
 	-lm \
 	$(LIB_ODE) \
 	$(LIB_JPEG) \
+	$(LIB_ZLIB) \
 	$(LIB_CRYPTO) \
 	$(LIB_GMP) \
 	$(LIB_CRYPTO_RIJNDAEL)
-- 
2.39.2