From: Ben Pfaff <blp@cs.stanford.edu>
Date: Sat, 26 Jan 2008 16:43:15 +0000 (+0000)
Subject: Use -fno-stack-protector with GCC versions that support it, to fix a
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?p=pintos-anon;a=commitdiff_plain;h=60208708f25db2a66d7ccbe47af83b04da459fdb

Use -fno-stack-protector with GCC versions that support it, to fix a
linker error on platform on which -fstack-protector is default, such
as recent versions of Ubuntu.
---

diff --git a/src/Make.config b/src/Make.config
index 16db6d5..841e910 100644
--- a/src/Make.config
+++ b/src/Make.config
@@ -39,6 +39,11 @@ ASFLAGS = -Wa,--gstabs
 LDFLAGS = 
 DEPS = -MMD -MF $(@:.o=.d)
 
+# Turn off -fstack-protector, which we don't support.
+ifeq ($(strip $(shell echo | $(CC) -fno-stack-protector -E - > /dev/null 2>&1; echo $$?)),0)
+CFLAGS += -fno-stack-protector
+endif
+
 %.o: %.c
 	$(CC) -c $< -o $@ $(CFLAGS) $(CPPFLAGS) $(WARNINGS) $(DEFINES) $(DEPS)