blhc generates the following warnings because all hardening flags are missing:
- CFLAGS missing (-fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security): gcc -g -O2 -o test test.c
+ CFLAGS missing (-fstack-protector-strong -Wformat -Werror=format-security): gcc -g -O2 -o test test.c
CPPFLAGS missing (-D_FORTIFY_SOURCE=2): gcc -g -O2 -o test test.c
LDFLAGS missing (-Wl,-z,relro): gcc -g -O2 -o test test.c