From: Laszlo Kajan <lkajan@rostlab.org>
Subject: hardening flags
Forwarded: yes

--- a/src/Makefile
+++ b/src/Makefile
@@ -15,6 +15,11 @@
 
 #-Wl,--version-script=libffindex.map
 
+# hardening flags
+CFLAGS+=-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security
+CPPFLAGS+=-D_FORTIFY_SOURCE=2
+LDFLAGS+=-Wl,-z,relro
+
 ifdef HAVE_MPI
 all: ffindex_apply_mpi ffindex_apply ffindex_from_fasta ffindex_get ffindex_build ffindex_modify libffindex.a libffindex.so
 else
