From fe61f6de0dd5d39ac3de5e8e18742f9bd0aafad7 Mon Sep 17 00:00:00 2001 From: Gilles Espinasse Date: Tue, 29 Mar 2011 15:30:11 +0100 Subject: [PATCH] [build] Fix compilation when gcc is patched to default to -fPIE -Wl,-pie Signed-off-by: Gilles Espinasse Modified-by: Michael Brown Signed-off-by: Michael Brown --- src/Makefile.housekeeping | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping index 57e52c0f..c184351d 100644 --- a/src/Makefile.housekeeping +++ b/src/Makefile.housekeeping @@ -138,6 +138,17 @@ SP_FLAGS := $(shell $(SP_TEST) && $(ECHO) '-fno-stack-protector') WORKAROUND_CFLAGS += $(SP_FLAGS) endif +# Some widespread patched versions of gcc include -fPIE -Wl,-pie by +# default. Note that gcc will exit *successfully* if it fails to +# recognise an option that starts with "no", so we have to test for +# output on stderr instead of checking the exit status. +# +ifeq ($(CCTYPE),gcc) +PIE_TEST = [ -z "`$(CC) -fno-PIE -nopie -x c -c /dev/null -o /dev/null 2>&1`" ] +PIE_FLAGS := $(shell $(PIE_TEST) && $(ECHO) '-fno-PIE -nopie') +WORKAROUND_CFLAGS += $(PIE_FLAGS) +endif + # gcc 4.4 generates .eh_frame sections by default, which distort the # output of "size". Inhibit this. #