Makefile: Add CFLAGS for PIE and erranous warning

-Wdisabled-macro-expansion warns about macros that look like if they
were self-recursive but aren't according to the C standard. When
compiling with optimizations enabled clang throws this warning about
tolower and toupper.

1 files changed, 2 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index ee5600e..9f988fa 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,5 @@
-CFLAGS += -Weverything -O2 -std=c99 -ggdb
+CFLAGS += -O2 -std=c99 -ggdb -fPIE -pie -fstack-protector-all -Wl,-z,relro -Wl,-z,now
+CFLAGS += -Weverything -Wno-disabled-macro-expansion
 CC = clang
 
 SOURCES = test/twbctf.c src/sds.c