Index: mmc-utils-f4eb241519f8d500ce6068a70d2389be39ac5189/Makefile
===================================================================
--- mmc-utils-f4eb241519f8d500ce6068a70d2389be39ac5189.orig/Makefile
+++ mmc-utils-f4eb241519f8d500ce6068a70d2389be39ac5189/Makefile
@@ -1,5 +1,5 @@
 CC ?= gcc
-AM_CFLAGS = -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2
+AM_CFLAGS = -D_FILE_OFFSET_BITS=64 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
 CFLAGS ?= -g -O2
 objects = \
 	mmc.o \