syslet: update to -v7 as posted by Zach

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/Makefile b/Makefile
index 2acc918..aceee90 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 #CC	= /opt/intel/cce/9.1.045/bin/icc
-CC	= gcc -W
+CC	= gcc
 DEBUGFLAGS = -D_FORTIFY_SOURCE=2
 OPTFLAGS= -O2 -g $(EXTFLAGS)
 CFLAGS	= -Wwrite-strings -Wall -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 $(OPTFLAGS) $(DEBUGFLAGS) -rdynamic