linux-ext4 - [PATCH 5/5] Fix LTO builds so debugging information is preserved

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Message-Id: <20180809024219.15696-5-tytso@mit.edu>
Date:   Wed,  8 Aug 2018 22:42:19 -0400
From:   Theodore Ts'o <tytso@....edu>
To:     Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc:     Theodore Ts'o <tytso@....edu>
Subject: [PATCH 5/5] Fix LTO builds so debugging information is preserved

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

diff --git a/configure b/configure
index 1493e1527..f5092e3b6 100755
--- a/configure
+++ b/configure
@@ -13763,7 +13763,7 @@ if test "$enable_lto" = "yes" || test "$enable_lto" = "probe"; then
 $as_echo_n "checking if C compiler supports LTO... " >&6; }
 	OLD_CFLAGS="$CFLAGS"
 	OLD_LDFLAGS="$LDFLAGS"
-	LTO_FLAGS="-flto -ffat-lto-objects"
+	LTO_FLAGS="-g -flto -ffat-lto-objects"
 	CFLAGS="$CFLAGS $LTO_FLAGS"
 	LDFLAGS="$LDFLAGS $LTO_FLAGS"
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
diff --git a/configure.ac b/configure.ac
index fe717d090..54bd1fe1a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1305,7 +1305,7 @@ if test "$enable_lto" = "yes" || test "$enable_lto" = "probe"; then
 	AC_MSG_CHECKING([if C compiler supports LTO])
 	OLD_CFLAGS="$CFLAGS"
 	OLD_LDFLAGS="$LDFLAGS"
-	LTO_FLAGS="-flto -ffat-lto-objects"
+	LTO_FLAGS="-g -flto -ffat-lto-objects"
 	CFLAGS="$CFLAGS $LTO_FLAGS"
 	LDFLAGS="$LDFLAGS $LTO_FLAGS"
 	AC_LINK_IFELSE([AC_LANG_PROGRAM([])],
-- 
2.18.0.rc0