From 0198f52ea2328fd932622ad2299381f617a041f2 Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@redhat.com>
Date: Thu, 20 Dec 2018 16:03:01 +0100
Subject: bpo-35257: Avoid leaking LTO linker flags into distutils (GH-10900)
 (GH-11264)

When compiling 3rd party C extensions, the linker flags used by the
compiler for the interpreter and the stdlib modules, will get
leaked into distutils. In order to avoid that, the PY_CORE_LDFLAGS
and PY_LDFLAGS_NODIST are introduced to keep those flags separated.

(cherry picked from commit cf10a750f4b50b6775719cfb17bee00bc3a9c60b)
---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index c35aea98e5..a7de901e08 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1395,7 +1395,7 @@ if test "$Py_LTO" = 'true' ; then
   fi
 
   CFLAGS_NODIST="$CFLAGS_NODIST $LTOFLAGS"
-  LDFLAGS="$LDFLAGS $LTOFLAGS"
+  LDFLAGS_NODIST="$LDFLAGS_NODIST $LTOFLAGS"
 fi
 
 # Enable PGO flags.
@@ -1555,6 +1555,7 @@ fi
 
 AC_SUBST(BASECFLAGS)
 AC_SUBST(CFLAGS_NODIST)
+AC_SUBST(LDFLAGS_NODIST)
 
 # The -arch flags for universal builds on OSX
 UNIVERSAL_ARCH_FLAGS=
-- 
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