--- libproxy-0.4.11.old/CMakeLists.txt
+++ libproxy-0.4.11/CMakeLists.txt
@@ -55,3 +55,5 @@
 add_subdirectory(libproxy)
 add_subdirectory(utils)
 
+set (CMAKE_C_FLAGS_RELEASE   "-fPIC -O3")
+set (CMAKE_CXX_FLAGS_RELEASE "-fPIC -O3")