config: improve check for PIE-disabling flags.

* configure: the logic must be cumulative; the test for the code
generation flag (e.g. -fno-pie) needs to incorporate the previously
detected linker flag (e.g. -no-pie). On x86_64, -fno-pie by itself
without -no-pie fails with errors.

1 files changed, 2 insertions, 2 deletions

diff --git a/configure b/configure
index f79a71ff..57f7a929 100755
--- a/configure
+++ b/configure
@@ -888,14 +888,14 @@ printf "Checking how to disable PIE ..."
 nopie_flags=
 
 for flag in -nopie -no-pie ; do
-  if conftest EXTRA_FLAGS=$flag ; then
+  if conftest EXTRA_FLAGS=$flag && ! grep -q option conftest.err ; then
     nopie_flags=" $flag"
     break
   fi
 done
 
 for flag in -fnopie -fno-pie ; do
-  if conftest EXTRA_FLAGS=$flag ; then
+  if conftest EXTRA_FLAGS="$flag$nopie_flags" && ! grep -q option conftest.err ; then
     nopie_flags="$nopie_flags $flag"
     break
   fi