gcc -Wl,--as-needed -fPIE -pie -o test.cgi test.o -lgcrypt
-gcc -g -O2 -fstack-protector-strong -Wformat -Wformat-security -Werror=format-security test.c -o lib`basename test/test`.so
+gcc -g -O2 -fstack-protector-strong -fstack-clash-protection -Wformat -Wformat-security -Werror=format-security test.c -o lib`basename test/test`.so