From: Andreas Schwab Date: Fri, 21 Jan 2011 13:29:47 +0000 (+0000) Subject: Sync toplevel configure from GCC X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7837304f171553826fcfd7feb4efe63821b09769;p=binutils-gdb.git Sync toplevel configure from GCC 2011-01-21 Andreas Schwab * configure.ac: Use AS_HELP_STRING throughout. * configure: Regenerate. 2011-01-18 Jie Zhang * configure.ac (bfin-*-*): Remove gdb from noconfigdirs. * configure: Regenerate. --- diff --git a/ChangeLog b/ChangeLog index aeb360f584e..30aa6ba3195 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,17 @@ +2011-01-21 Andreas Schwab + + Sync from GCC: + + 2011-01-21 Andreas Schwab + + * configure.ac: Use AS_HELP_STRING throughout. + * configure: Regenerate. + + 2011-01-18 Jie Zhang + + * configure.ac (bfin-*-*): Remove gdb from noconfigdirs. + * configure: Regenerate. + 2010-12-10 John David Anglin * ltmain.sh (relink): Use absolute path when hardcoding with -L. diff --git a/configure b/configure index 5e469f4b865..bc408db8371 100755 --- a/configure +++ b/configure @@ -1454,69 +1454,76 @@ Optional Features: --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) --enable-FEATURE[=ARG] include FEATURE [ARG=yes] --enable-gold[=ARG] build gold [ARG={default,yes,no}] - --enable-ld[=ARG] build ld [ARG={default,yes,no}] + --enable-ld[=ARG] build ld [ARG={default,yes,no}] --disable-libquadmath do not build libquadmath directory --disable-libquadmath-support disable libquadmath support for Fortran --enable-libada build libada directory --enable-libssp build libssp directory --enable-build-with-cxx build with C++ compiler instead of C compiler - --disable-ppl-version-check disable check for PPL version + --disable-ppl-version-check + disable check for PPL version --enable-cloog-backend[=BACKEND] set the CLooG BACKEND used to either isl, ppl or ppl-legacy (default) --disable-cloog-version-check disable check for CLooG version --enable-lto enable link time optimization support - --enable-stage1-languages[=all] choose additional languages to build during - stage1. Mostly useful for compiler development. - --enable-objc-gc enable use of Boehm's garbage collector with the - GNU Objective-C runtime + --enable-stage1-languages[=all] + choose additional languages to build during stage1. + Mostly useful for compiler development + --enable-objc-gc enable use of Boehm's garbage collector with the GNU + Objective-C runtime --enable-bootstrap enable bootstrapping [yes if native build] --enable-serial-[{host,target,build}-]configure - force sequential configuration of - sub-packages for the host, target or build - machine, or all sub-packages - --enable-maintainer-mode enable make rules and dependencies not useful - (and sometimes confusing) to the casual installer - --enable-stage1-checking[=all] choose additional checking for stage1 - of the compiler + force sequential configuration of sub-packages for + the host, target or build machine, or all + sub-packages + --enable-maintainer-mode + enable make rules and dependencies not useful (and + sometimes confusing) to the casual installer + --enable-stage1-checking[=all] + choose additional checking for stage1 of the + compiler --enable-werror enable -Werror in bootstrap stage2 and later Optional Packages: --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no) --with-build-libsubdir=DIR Directory where to find libraries for build system - --with-mpc=PATH specify prefix directory for installed MPC package. - Equivalent to --with-mpc-include=PATH/include - plus --with-mpc-lib=PATH/lib - --with-mpc-include=PATH - specify directory for installed MPC include files - --with-mpc-lib=PATH specify directory for the installed MPC library + --with-mpc=PATH specify prefix directory for installed MPC package. + Equivalent to --with-mpc-include=PATH/include plus + --with-mpc-lib=PATH/lib + --with-mpc-include=PATH specify directory for installed MPC include files + --with-mpc-lib=PATH specify directory for the installed MPC library --with-mpfr-dir=PATH this option has been REMOVED --with-mpfr=PATH specify prefix directory for installed MPFR package. - Equivalent to --with-mpfr-include=PATH/include - plus --with-mpfr-lib=PATH/lib + Equivalent to --with-mpfr-include=PATH/include plus + --with-mpfr-lib=PATH/lib --with-mpfr-include=PATH specify directory for installed MPFR include files --with-mpfr-lib=PATH specify directory for the installed MPFR library --with-gmp-dir=PATH this option has been REMOVED - --with-gmp=PATH specify prefix directory for the installed GMP package. - Equivalent to --with-gmp-include=PATH/include - plus --with-gmp-lib=PATH/lib + --with-gmp=PATH specify prefix directory for the installed GMP + package. Equivalent to + --with-gmp-include=PATH/include plus + --with-gmp-lib=PATH/lib --with-gmp-include=PATH specify directory for installed GMP include files --with-gmp-lib=PATH specify directory for the installed GMP library - --with-host-libstdcxx=L Use linker arguments L to link with libstdc++ - when linking with PPL - --with-stage1-ldflags=FLAGS Linker flags for stage1 - -with-stage1-libs=LIBS Libraries for stage1 - --with-boot-libs=LIBS Libraries for stage2 and later - --with-boot-ldflags=FLAGS Linker flags for stage2 and later - --with-ppl=PATH Specify prefix directory for the installed PPL package - Equivalent to --with-ppl-include=PATH/include - plus --with-ppl-lib=PATH/lib - --with-ppl-include=PATH Specify directory for installed PPL include files - --with-ppl-lib=PATH Specify the directory for the installed PPL library + --with-host-libstdcxx=L use linker arguments L to link with libstdc++ when + linking with PPL + --with-stage1-ldflags=FLAGS + linker flags for stage1 + --with-stage1-libs=LIBS libraries for stage1 + --with-boot-libs=LIBS libraries for stage2 and later + --with-boot-ldflags=FLAGS + linker flags for stage2 and later + --with-ppl=PATH specify prefix directory for the installed PPL + package. Equivalent to + --with-ppl-include=PATH/include plus + --with-ppl-lib=PATH/lib + --with-ppl-include=PATH specify directory for installed PPL include files + --with-ppl-lib=PATH specify directory for the installed PPL library --with-cloog=PATH Specify prefix directory for the installed CLooG-PPL package. Equivalent to --with-cloog-include=PATH/include plus @@ -1528,9 +1535,9 @@ Optional Packages: --with-build-sysroot=SYSROOT use sysroot as the system root during the build --with-debug-prefix-map='A=B C=D ...' - map A to B, C to D ... in debug information ---with-build-config='NAME NAME2...' - Use config/NAME.mk build configuration + map A to B, C to D ... in debug information + --with-build-config='NAME NAME2...' + use config/NAME.mk build configuration --with-build-time-tools=PATH use given path to find target tools during the build @@ -3260,7 +3267,7 @@ case "${target}" in ;; bfin-*-*) unsupported_languages="$unsupported_languages java" - noconfigdirs="$noconfigdirs target-boehm-gc gdb" + noconfigdirs="$noconfigdirs target-boehm-gc" if test x${is_cross_compiler} != xno ; then target_configdirs="${target_configdirs} target-bsp target-cygmon" fi diff --git a/configure.ac b/configure.ac index c7a86e2b6db..1227054fb5b 100644 --- a/configure.ac +++ b/configure.ac @@ -1,5 +1,5 @@ # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, -# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 +# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 # Free Software Foundation, Inc. # # This file is free software; you can redistribute it and/or modify it @@ -344,7 +344,8 @@ esac default_ld= AC_ARG_ENABLE(gold, -[[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]], +[AS_HELP_STRING([[--enable-gold[=ARG]]], + [build gold @<:@ARG={default,yes,no}@:>@])], ENABLE_GOLD=$enableval, ENABLE_GOLD=no) case "${ENABLE_GOLD}" in @@ -385,7 +386,8 @@ case "${ENABLE_GOLD}" in esac AC_ARG_ENABLE(ld, -[[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]], +[AS_HELP_STRING([[--enable-ld[=ARG]]], + [build ld @<:@ARG={default,yes,no}@:>@])], ENABLE_LD=$enableval, ENABLE_LD=yes) @@ -480,7 +482,7 @@ fi AC_ARG_ENABLE(libada, -[ --enable-libada build libada directory], +[AS_HELP_STRING([--enable-libada], [build libada directory])], ENABLE_LIBADA=$enableval, ENABLE_LIBADA=yes) if test "${ENABLE_LIBADA}" != "yes" ; then @@ -488,7 +490,7 @@ if test "${ENABLE_LIBADA}" != "yes" ; then fi AC_ARG_ENABLE(libssp, -[ --enable-libssp build libssp directory], +[AS_HELP_STRING([--enable-libssp], [build libssp directory])], ENABLE_LIBSSP=$enableval, ENABLE_LIBSSP=yes) @@ -711,7 +713,7 @@ case "${target}" in ;; bfin-*-*) unsupported_languages="$unsupported_languages java" - noconfigdirs="$noconfigdirs target-boehm-gc gdb" + noconfigdirs="$noconfigdirs target-boehm-gc" if test x${is_cross_compiler} != xno ; then target_configdirs="${target_configdirs} target-bsp target-cygmon" fi @@ -1320,7 +1322,8 @@ ACX_PROG_CMP_IGNORE_INITIAL # See if we are building gcc with C++. AC_ARG_ENABLE(build-with-cxx, -[ --enable-build-with-cxx build with C++ compiler instead of C compiler], +[AS_HELP_STRING([--enable-build-with-cxx], + [build with C++ compiler instead of C compiler])], ENABLE_BUILD_WITH_CXX=$enableval, ENABLE_BUILD_WITH_CXX=no) @@ -1334,12 +1337,17 @@ have_gmp=no # Specify a location for mpc # check for this first so it ends up on the link line before mpfr. -AC_ARG_WITH(mpc, [ --with-mpc=PATH specify prefix directory for installed MPC package. - Equivalent to --with-mpc-include=PATH/include - plus --with-mpc-lib=PATH/lib]) -AC_ARG_WITH(mpc-include, [ --with-mpc-include=PATH - specify directory for installed MPC include files]) -AC_ARG_WITH(mpc-lib, [ --with-mpc-lib=PATH specify directory for the installed MPC library]) +AC_ARG_WITH(mpc, +[AS_HELP_STRING([--with-mpc=PATH], + [specify prefix directory for installed MPC package. + Equivalent to --with-mpc-include=PATH/include + plus --with-mpc-lib=PATH/lib])]) +AC_ARG_WITH(mpc-include, +[AS_HELP_STRING([--with-mpc-include=PATH], + [specify directory for installed MPC include files])]) +AC_ARG_WITH(mpc-lib, +[AS_HELP_STRING([--with-mpc-lib=PATH], + [specify directory for the installed MPC library])]) if test "x$with_mpc" != x; then gmplibs="-L$with_mpc/lib $gmplibs" @@ -1363,16 +1371,22 @@ fi # Specify a location for mpfr # check for this first so it ends up on the link line before gmp. -AC_ARG_WITH(mpfr-dir, [ --with-mpfr-dir=PATH this option has been REMOVED], - AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed. -Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])) - -AC_ARG_WITH(mpfr, [ --with-mpfr=PATH specify prefix directory for installed MPFR package. - Equivalent to --with-mpfr-include=PATH/include - plus --with-mpfr-lib=PATH/lib]) -AC_ARG_WITH(mpfr-include, [ --with-mpfr-include=PATH - specify directory for installed MPFR include files]) -AC_ARG_WITH(mpfr-lib, [ --with-mpfr-lib=PATH specify directory for the installed MPFR library]) +AC_ARG_WITH(mpfr-dir, +[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])], +[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed. +Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])]) + +AC_ARG_WITH(mpfr, +[AS_HELP_STRING([--with-mpfr=PATH], + [specify prefix directory for installed MPFR package. + Equivalent to --with-mpfr-include=PATH/include + plus --with-mpfr-lib=PATH/lib])]) +AC_ARG_WITH(mpfr-include, +[AS_HELP_STRING([--with-mpfr-include=PATH], + [specify directory for installed MPFR include files])]) +AC_ARG_WITH(mpfr-lib, +[AS_HELP_STRING([--with-mpfr-lib=PATH], + [specify directory for the installed MPFR library])]) if test "x$with_mpfr" != x; then gmplibs="-L$with_mpfr/lib $gmplibs" @@ -1396,15 +1410,22 @@ if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/m fi # Specify a location for gmp -AC_ARG_WITH(gmp-dir, [ --with-gmp-dir=PATH this option has been REMOVED], - AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed. -Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])) - -AC_ARG_WITH(gmp, [ --with-gmp=PATH specify prefix directory for the installed GMP package. - Equivalent to --with-gmp-include=PATH/include - plus --with-gmp-lib=PATH/lib]) -AC_ARG_WITH(gmp-include, [ --with-gmp-include=PATH specify directory for installed GMP include files]) -AC_ARG_WITH(gmp-lib, [ --with-gmp-lib=PATH specify directory for the installed GMP library]) +AC_ARG_WITH(gmp-dir, +[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])], +[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed. +Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])]) + +AC_ARG_WITH(gmp, +[AS_HELP_STRING([--with-gmp=PATH], + [specify prefix directory for the installed GMP package. + Equivalent to --with-gmp-include=PATH/include + plus --with-gmp-lib=PATH/lib])]) +AC_ARG_WITH(gmp-include, +[AS_HELP_STRING([--with-gmp-include=PATH], + [specify directory for installed GMP include files])]) +AC_ARG_WITH(gmp-lib, +[AS_HELP_STRING([--with-gmp-lib=PATH], + [specify directory for the installed GMP library])]) if test "x$with_gmp" != x; then @@ -1536,8 +1557,10 @@ AC_SUBST(extra_mpc_gmp_configure_flags) AC_SUBST(extra_mpc_mpfr_configure_flags) # Allow host libstdc++ to be specified for static linking with PPL. -AC_ARG_WITH(host-libstdcxx, [ --with-host-libstdcxx=L Use linker arguments L to link with libstdc++ - when linking with PPL]) +AC_ARG_WITH(host-libstdcxx, +[AS_HELP_STRING([--with-host-libstdcxx=L], + [use linker arguments L to link with libstdc++ + when linking with PPL])]) case $with_host_libstdcxx in no|yes) @@ -1547,7 +1570,7 @@ esac # Linker flags to use for stage1 or when not boostrapping. AC_ARG_WITH(stage1-ldflags, -[ --with-stage1-ldflags=FLAGS Linker flags for stage1], +[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])], [if test "$withval" = "no" -o "$withval" = "yes"; then stage1_ldflags= else @@ -1558,7 +1581,7 @@ AC_SUBST(stage1_ldflags) # Libraries to use for stage1 or when not bootstrapping. AC_ARG_WITH(stage1-libs, -[ -with-stage1-libs=LIBS Libraries for stage1], +[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])], [if test "$withval" = "no" -o "$withval" = "yes"; then stage1_libs= else @@ -1570,7 +1593,7 @@ AC_SUBST(stage1_libs) # Libraries to use for stage2 and later builds. This defaults to the # argument passed to --with-host-libstdcxx. AC_ARG_WITH(boot-libs, -[ --with-boot-libs=LIBS Libraries for stage2 and later], +[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])], [if test "$withval" = "no" -o "$withval" = "yes"; then poststage1_libs= else @@ -1581,7 +1604,8 @@ AC_SUBST(poststage1_libs) # Linker flags to use for stage2 and later builds. AC_ARG_WITH(boot-ldflags, -[ --with-boot-ldflags=FLAGS Linker flags for stage2 and later], +[AS_HELP_STRING([--with-boot-ldflags=FLAGS], + [linker flags for stage2 and later])], [if test "$withval" = "no" -o "$withval" = "yes"; then poststage1_ldflags= else @@ -1600,11 +1624,17 @@ AC_SUBST(poststage1_ldflags) ppllibs=" -lppl_c -lppl -lgmpxx" pplinc= -AC_ARG_WITH(ppl, [ --with-ppl=PATH Specify prefix directory for the installed PPL package - Equivalent to --with-ppl-include=PATH/include - plus --with-ppl-lib=PATH/lib]) -AC_ARG_WITH(ppl-include, [ --with-ppl-include=PATH Specify directory for installed PPL include files]) -AC_ARG_WITH(ppl-lib, [ --with-ppl-lib=PATH Specify the directory for the installed PPL library]) +AC_ARG_WITH(ppl, +[AS_HELP_STRING([--with-ppl=PATH], + [specify prefix directory for the installed PPL package. + Equivalent to --with-ppl-include=PATH/include + plus --with-ppl-lib=PATH/lib])]) +AC_ARG_WITH(ppl-include, +[AS_HELP_STRING([--with-ppl-include=PATH], + [specify directory for installed PPL include files])]) +AC_ARG_WITH(ppl-lib, +[AS_HELP_STRING([--with-ppl-lib=PATH], + [specify directory for the installed PPL library])]) case $with_ppl in no) @@ -1630,7 +1660,8 @@ if test "x$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; fi AC_ARG_ENABLE(ppl-version-check, -[ --disable-ppl-version-check disable check for PPL version], +[AS_HELP_STRING([--disable-ppl-version-check], + [disable check for PPL version])], ENABLE_PPL_CHECK=$enableval, ENABLE_PPL_CHECK=yes) @@ -1687,7 +1718,7 @@ fi # Check for LTO support. AC_ARG_ENABLE(lto, -[ --enable-lto enable link time optimization support], +[AS_HELP_STRING([--enable-lto], [enable link time optimization support])], enable_lto=$enableval, enable_lto=yes; default_enable_lto=yes) @@ -1948,8 +1979,9 @@ if test -d ${srcdir}/gcc; then fi AC_ARG_ENABLE(stage1-languages, -[ --enable-stage1-languages@<:@=all@:>@ choose additional languages to build during - stage1. Mostly useful for compiler development.], + [AS_HELP_STRING([[--enable-stage1-languages[=all]]], + [choose additional languages to build during + stage1. Mostly useful for compiler development])], [case ,${enable_stage1_languages}, in ,no,|,,) # Set it to something that will have no effect in the loop below @@ -2010,8 +2042,9 @@ done # Check for Boehm's garbage collector AC_ARG_ENABLE(objc-gc, -[ --enable-objc-gc enable use of Boehm's garbage collector with the - GNU Objective-C runtime], +[AS_HELP_STRING([--enable-objc-gc], + [enable use of Boehm's garbage collector with the + GNU Objective-C runtime])], [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in *,objc,*:*:yes:*target-boehm-gc*) AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration]) @@ -2166,8 +2199,8 @@ ACX_TOOL_DIRS copy_dirs= AC_ARG_WITH([build-sysroot], - [ --with-build-sysroot=SYSROOT - use sysroot as the system root during the build], + [AS_HELP_STRING([--with-build-sysroot=SYSROOT], + [use sysroot as the system root during the build])], [if test x"$withval" != x ; then SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval" fi], @@ -2175,8 +2208,8 @@ AC_ARG_WITH([build-sysroot], AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET) AC_ARG_WITH([debug-prefix-map], - [ --with-debug-prefix-map='A=B C=D ...' - map A to B, C to D ... in debug information], + [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'], + [map A to B, C to D ... in debug information])], [if test x"$withval" != x; then DEBUG_PREFIX_CFLAGS_FOR_TARGET= for debug_map in $withval; do @@ -2605,7 +2638,8 @@ INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g` # Do not nest @if/@endif pairs, because configure will not warn you at all. AC_ARG_ENABLE([bootstrap], -[ --enable-bootstrap enable bootstrapping @<:@yes if native build@:>@],, +[AS_HELP_STRING([--enable-bootstrap], + [enable bootstrapping @<:@yes if native build@:>@])],, enable_bootstrap=default) # Issue errors and warnings for invalid/strange bootstrap combinations. @@ -2674,8 +2708,8 @@ esac AC_MSG_CHECKING(for default BUILD_CONFIG) AC_ARG_WITH([build-config], - [--with-build-config='NAME NAME2...' - Use config/NAME.mk build configuration], + [AS_HELP_STRING([--with-build-config='NAME NAME2...'], + [use config/NAME.mk build configuration])], [case $with_build_config in yes) with_build_config= ;; no) with_build_config= BUILD_CONFIG= ;; @@ -2760,10 +2794,10 @@ extrasub_target="$extrasub_target # Create the serialization dependencies. This uses a temporary file. AC_ARG_ENABLE([serial-configure], -[ --enable-serial-@<:@{host,target,build}-@:>@configure - force sequential configuration of - sub-packages for the host, target or build - machine, or all sub-packages]) +[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]], + [force sequential configuration of + sub-packages for the host, target or build + machine, or all sub-packages])]) case ${enable_serial_configure} in yes) @@ -3227,8 +3261,8 @@ AC_SUBST(CXXFLAGS) # Target tools. AC_ARG_WITH([build-time-tools], - [ --with-build-time-tools=PATH - use given path to find target tools during the build], + [AS_HELP_STRING([--with-build-time-tools=PATH], + [use given path to find target tools during the build])], [case x"$withval" in x/*) ;; *) @@ -3315,8 +3349,9 @@ AC_SUBST(COMPILER_NM_FOR_TARGET) AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) AC_ARG_ENABLE(maintainer-mode, -[ --enable-maintainer-mode enable make rules and dependencies not useful - (and sometimes confusing) to the casual installer], +[AS_HELP_STRING([--enable-maintainer-mode], + [enable make rules and dependencies not useful + (and sometimes confusing) to the casual installer])], USE_MAINTAINER_MODE=$enableval, USE_MAINTAINER_MODE=no) AC_MSG_RESULT($USE_MAINTAINER_MODE) @@ -3370,8 +3405,8 @@ AC_SUBST(stage1_cflags) # Enable --enable-checking in stage1 of the compiler. AC_ARG_ENABLE(stage1-checking, -[ --enable-stage1-checking@<:@=all@:>@ choose additional checking for stage1 - of the compiler], +[AS_HELP_STRING([[--enable-stage1-checking[=all]]], + [choose additional checking for stage1 of the compiler])], [stage1_checking=--enable-checking=${enable_stage1_checking}], [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then stage1_checking=--enable-checking=yes,types @@ -3382,7 +3417,8 @@ AC_SUBST(stage1_checking) # Enable -Werror in bootstrap stage2 and later. AC_ARG_ENABLE(werror, -[ --enable-werror enable -Werror in bootstrap stage2 and later], [], +[AS_HELP_STRING([--enable-werror], + [enable -Werror in bootstrap stage2 and later])], [], [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then enable_werror=yes else