Fix up compile flags
diff --git a/src/Makefile b/src/Makefile
index ed29b8e5..cb599948 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -3,14 +3,14 @@ CC = ../toolchain/bin/i386-elf-gcc
CFLAGS = -Os -pipe -Wall -Wextra
INTERNAL_CFLAGS = \
+ -std=gnu99 \
-ffreestanding \
-masm=intel \
-fno-pic \
+ -mno-80387 \
+ -mno-mmx \
-mno-sse \
-mno-sse2 \
- -mno-mmx \
- -mno-80387 \
- -ffreestanding \
-fno-stack-protector \
-I. \
-Wno-address-of-packed-member
