add as-needed

diff --git a/debian/rules b/debian/rules
index 9626671..3b2acc6 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -8,8 +8,8 @@ DEB_MAKE_CLEAN_TARGET := distclean
 
 DEB_CONFIGURE_EXTRA_FLAGS := 
 DEB_SOURCE_VERSION := $(shell )
-CFLAGS += -fvisibility=hidden -ffast-math
-LDFLAGS += -fvisibility=hidden
+CFLAGS += -fvisibility=hidden -ffast-math -fPIC
+LDFLAGS += -fvisibility=hidden -Wl,--hash-style=both -Wl,--as-needed
 
 
 clean::