1 files changed, 3 insertions, 2 deletions
diff --git a/macros.mk b/macros.mk
index 15529f6..6df5b3a 100644
--- a/macros.mk
+++ b/macros.mk
@@ -45,8 +45,9 @@ V ?= 0
 CPPFLAGS += -I$(TOPDIR) -I$(TOPDIR)/include
 LIBFLAGS =
 
-CFLAGS ?= -Wl,-z,relro -Wall -O0 -g
+CFLAGS ?= -Wl,-z,relro -Wall -O0 -g -fvisibility=hidden
 CFLAGS += -fPIC
+PYCFLAGS ?= -fvisibility=default
 LDFLAGS ?= -z relro -g
 
 #
@@ -107,7 +108,7 @@ VERSION_HDR = version.h
 
 PY_DISTUTILS = \
 	VERSION_RELEASE="$(VERSION_RELEASE)" \
-	CFLAGS="$(CFLAGS) $(CPPFLAGS)" LDFLAGS="$(LDFLAGS)" \
+	CFLAGS="$(CFLAGS) $(CPPFLAGS) $(PYCFLAGS)" LDFLAGS="$(LDFLAGS)" \
 	$(PYTHON) ./setup.py
 
 ifeq ($(V),0)