fix mfkey tools (issue #247)

[proxmark3-svn] / tools / mfkey / Makefile

diff --git a/tools/mfkey/Makefile b/tools/mfkey/Makefile
index da7d431a4edb917ea81369cff3cddc285dd41bea..1744e35a2763a7032dee232cd0a4c40891d26b38 100755 (executable)
--- a/tools/mfkey/Makefile
+++ b/tools/mfkey/Makefile
@@ -1,7 +1,7 @@
 VPATH = ../../common/crapto1 ../../client
 CC = gcc
 LD = gcc
-CFLAGS = -I../../common -I../../client -Wall -O4
+CFLAGS = -std=c99 -D_ISOC99_SOURCE -I../../common -I../../client -Wall -O3
 LDFLAGS =
 
 OBJS = crypto1.o crapto1.o util.o mfkey.o