File stack-check of Package LibVNCServer

Index: LibVNCServer-0.8.2/libvncserver/Makefile.am
===================================================================
--- LibVNCServer-0.8.2.orig/libvncserver/Makefile.am
+++ LibVNCServer-0.8.2/libvncserver/Makefile.am
@@ -1,5 +1,5 @@
-AM_CFLAGS=-g -Wall -I $(top_srcdir)
+AM_CFLAGS=-g -Wall -I $(top_srcdir) $(CFLAGS_$@)
 
 if WITH_TIGHTVNC_FILETRANSFER
 TIGHTVNCFILETRANSFERHDRS=tightvnc-filetransfer/filelistinfo.h \
 	tightvnc-filetransfer/filetransfermsg.h \
@@ -32,8 +32,11 @@ if HAVE_LIBJPEG
 JPEGSRCS = tight.c
 endif
 endif
 
+CFLAGS_auth.o = $(CFLAGS) -fstack-protector
+CFLAGS_vncauth.o = $(CFLAGS) -fstack-protector
+
 LIB_SRCS = main.c rfbserver.c rfbregion.c auth.c sockets.c \
 	stats.c corre.c hextile.c rre.c translate.c cutpaste.c \
 	httpd.c cursor.c font.c \
 	draw.c selbox.c d3des.c vncauth.c cargs.c minilzo.c ultra.c scale.c \