Fix warning in zlib thirdparty build.

The gzip functions need lseek, open, read, write, close.
Those functions are only defined in unistd.h is included,
so make sure that happens.

1 files changed, 1 insertions, 1 deletions

diff --git a/Makethird b/Makethird
index 70cce88f..afb6cb0f 100644
--- a/Makethird
+++ b/Makethird
@@ -290,7 +290,7 @@ $(ZLIB_LIB): $(addprefix $(ZLIB_OUT)/, $(ZLIB_SRC:%.c=%.o))
 $(ZLIB_OUT):
 	$(MKDIR_CMD)
 $(ZLIB_OUT)/%.o: $(ZLIB_DIR)/%.c | $(ZLIB_OUT)
-	$(CC_CMD) -Dverbose=-1
+	$(CC_CMD) -Dverbose=-1 -DHAVE_UNISTD_H -DHAVE_STDARG_H
 
 ZLIB_CFLAGS := -I$(ZLIB_DIR)
 else