From 139a30928a23f8bbc7148197bbe98ed0e0565cf1 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Fri, 17 Aug 2018 22:26:24 -0400
Subject: [PATCH] configure: don't enable LTO by default

Not all compilers (or versions of compilers) use the same LTO options
or behave the same way with LTO.  In particular, using clang and the
current LTO options cause the build to fail.  We should probably fix
up the configure script to handle Clang and LTO, but for now, we won't
enable LTO unless the user explicitly passes --enable-lto to the
configure script.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
 configure    | 2 +-
 configure.ac | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 6244cb9e..98456b7f 100755
--- a/configure
+++ b/configure
@@ -13755,7 +13755,7 @@ esac
 if test "${enable_lto+set}" = set; then :
   enableval=$enable_lto;
 else
-  enable_lto=probe
+  enable_lto=no
 fi
 
 if test "$enable_lto" = "yes" || test "$enable_lto" = "probe"; then
diff --git a/configure.ac b/configure.ac
index 6c464ba7..0c2b2421 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1301,7 +1301,7 @@ dnl Enable LTO for all packages
 dnl
 AC_ARG_ENABLE([lto],
 [  --enable-lto		  enable link time optimization],,
-enable_lto=probe)
+enable_lto=no)
 if test "$enable_lto" = "yes" || test "$enable_lto" = "probe"; then
 	AC_MSG_CHECKING([if C compiler supports LTO])
 	OLD_CFLAGS="$CFLAGS"