BUILD: makefile: support ZLIB_CFLAGS and ZLIB_LDFLAGS
The CFLAGS and LDFLAGS appended by USE_ZLIB can now be overridden using
ZLIB_CFLAGS and ZLIB_LDFLAGS.
diff --git a/Makefile b/Makefile
index 0cafdad..a1aaeef 100644
--- a/Makefile
+++ b/Makefile
@@ -519,8 +519,8 @@
ifneq ($(USE_ZLIB),)
# Use ZLIB_INC and ZLIB_LIB to force path to zlib.h and libz.{a,so} if needed.
- OPTIONS_CFLAGS += $(if $(ZLIB_INC),-I$(ZLIB_INC))
- OPTIONS_LDFLAGS += $(if $(ZLIB_LIB),-L$(ZLIB_LIB)) -lz
+ ZLIB_CFLAGS = $(if $(ZLIB_INC),-I$(ZLIB_INC))
+ ZLIB_LDFLAGS = $(if $(ZLIB_LIB),-L$(ZLIB_LIB)) -lz
endif
ifneq ($(USE_SLZ),)