From e1e1fa23b7e889d334230033e60f291f69c060e9 Mon Sep 17 00:00:00 2001
From: Norman Feske <norman.feske@genode-labs.com>
Date: Fri, 3 Jan 2020 15:31:30 +0100
Subject: [PATCH] zlib: fix compile warning
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This patch includes 'unistd.h' to avoid warnings about the implicit
declaration of the functions ‘read’, 'close', and 'write.
---
 repos/libports/lib/mk/zlib.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/repos/libports/lib/mk/zlib.mk b/repos/libports/lib/mk/zlib.mk
index 7451c39ff..a73b9bf96 100644
--- a/repos/libports/lib/mk/zlib.mk
+++ b/repos/libports/lib/mk/zlib.mk
@@ -5,6 +5,7 @@ SRC_C    = adler32.c compress.c crc32.c deflate.c gzclose.c \
            gzlib.c gzread.c gzwrite.c infback.c inffast.c inflate.c \
            inftrees.c trees.c uncompr.c zutil.c
 CC_WARN  =
+CC_OPT  += -DZ_HAVE_UNISTD_H
 
 vpath %.c $(ZLIB_DIR)