1 files changed, 3 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index 54f80f3..90c11b3 100644
--- a/Makefile
+++ b/Makefile
@@ -7,8 +7,9 @@ MAKEFLAGS += --no-builtin-rules
 WARNINGS := -Wall -Wextra -Wpedantic -Wformat=2 -Wstrict-aliasing=3 -Wstrict-overflow=3 -Wstack-usage=12500 \
 	-Wfloat-equal -Wcast-align -Wpointer-arith -Wchar-subscripts -Warray-bounds=2
 
-override CFLAGS ?= -g
-override CFLAGS += -std=c11 $(WARNINGS)
+override CFLAGS ?= -g -O2 $(WARNINGS)
+override CFLAGS += -std=c11
+override CPPFLAGS ?= -D_FORTIFY_SOURCE=2
 override CPPFLAGS += -Isrc
 
 bins = escpos2raster starpbm