New patch to review for coreboot: DONOTMERGE buildgcc: Build GMP `--with-pic` if GCC defaults to `-pie`

[Nico Huber]

Nico Huber ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17936

-gerrit

commit ea0c2d76c4f16eccaafcb2c0741f76825505bafc
Author: Nico Huber 
Date:   Thu Dec 22 16:05:54 2016 +0100

DONOTMERGE buildgcc: Build GMP `--with-pic` if GCC defaults to `-pie`

Change-Id: I5f3185af9c8d599379a628e18724b217b88be974
    Signed-off-by: Nico Huber 
---
 util/crossgcc/buildgcc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index 97c38b8..4eefd43 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -515,6 +515,13 @@ set_hostcflags_from_gmp() {
 }

build_GMP() {
+	# Check if GCC enables `-pie` by default (likely on Debian Stretch).
+	# We have to use `--with-pic` then.
+	if "${CC}" -dumpspecs 2>/dev/null | grep -q '[{;][[:space:]]*:-pie>'
+	then
+		OPTIONS="$OPTIONS --with-pic"
+	fi
+
    CC="$CC" ../${GMP_DIR}/configure --disable-shared --enable-fat \
    	--prefix=$TARGETDIR $OPTIONS \
    	|| touch .failed