Hi. One has to set stage2_werror_flags in action-if-{not,}-given in order to properly respect the configure option.
Ready to be installed? Martin
>From 77244d330010b2a17ca81fc866e2904e2f3fece0 Mon Sep 17 00:00:00 2001 From: marxin <mli...@suse.cz> Date: Wed, 31 May 2017 15:27:05 +0200 Subject: [PATCH] Fix configure.ac to respect --{enable,disable}-werror option. ChangeLog: 2017-05-31 Martin Liska <mli...@suse.cz> * configure.ac: Add handling of stage2_werror_flags to action-if-given and to action-if-not-given. * configure: Regenerate. --- configure | 7 +++++-- configure.ac | 7 +++++-- 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/configure b/configure index 82aa619fad1..2cbb4b7ab9d 100755 --- a/configure +++ b/configure @@ -14641,13 +14641,13 @@ fi # Check whether --enable-werror was given. if test "${enable_werror+set}" = set; then : enableval=$enable_werror; -fi - case ${enable_werror} in yes) stage2_werror_flag="--enable-werror-always" ;; *) stage2_werror_flag="" ;; esac +else + if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then case $BUILD_CONFIG in bootstrap-debug) @@ -14657,6 +14657,9 @@ if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; esac fi +fi + + # Specify what files to not compare during bootstrap. diff --git a/configure.ac b/configure.ac index 78d2d593106..82faf06946d 100644 --- a/configure.ac +++ b/configure.ac @@ -3508,12 +3508,14 @@ AC_SUBST(stage1_checking) # Enable -Werror in bootstrap stage2 and later. AC_ARG_ENABLE(werror, [AS_HELP_STRING([--enable-werror], - [enable -Werror in bootstrap stage2 and later])], [], []) + [enable -Werror in bootstrap stage2 and later])], +[ case ${enable_werror} in yes) stage2_werror_flag="--enable-werror-always" ;; *) stage2_werror_flag="" ;; esac - +], +[ if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then case $BUILD_CONFIG in bootstrap-debug) @@ -3522,6 +3524,7 @@ if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; stage2_werror_flag="--enable-werror-always" ;; esac fi +]) AC_SUBST(stage2_werror_flag) -- 2.12.2