From b04dec1d217a82985e5d8e47fc2c305900ae68d7 Mon Sep 17 00:00:00 2001
From: Evan Klitzke <evan@eklitzke.org>
Date: Sun, 8 Nov 2020 11:46:30 -0800
Subject: [PATCH] Stop using legacy -ffat-lto-objects option in LTO builds

This change stops using the -ffat-lto-objects flag with GCC for builds
that use --enable-link-time-optimization. This option was originally
added to support GCC 4.9 which is very old, and makes compiling LTO
builds on modern versions of GCC significantly slower.
---
 configure.ac | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/configure.ac b/configure.ac
index f0c8e5210f..71a931da9e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1171,13 +1171,6 @@ AC_DEFUN
 	 # command, so plugin name is appended to ARFLAGS.
 	 ARFLAGS="cru --plugin $GOLD_PLUGIN"
 	 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
-      else
-        dnl The following is needed for GCC 4.9.0.  The GCC 4.9.0 release notes
-        dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
-        dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
-        dnl dump core on Fedora 20, so play it safe for now.
-        gl_COMPILER_OPTION_IF([-ffat-lto-objects],
-          [CFLAGS="$CFLAGS -ffat-lto-objects"])
       fi
    fi
 fi)
-- 
2.28.0