diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/configure.ac b/configure.ac index 33e3afc9751..255575d8ad3 100644 --- a/configure.ac +++ b/configure.ac @@ -2516,12 +2516,13 @@ INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g` # configuration, so that the top-level Makefile reconfigures them, # like we used to do when configure itself was recursive. -# Loop over modules. $extrasub must be used with care, limiting as -# much as possible the usage of range addresses. That's because autoconf -# splits the sed script to overcome limits in the number of commands, -# and relying on carefully-timed sed passes may turn out to be very hard -# to maintain later. In this particular case, you just have to be careful -# not to nest @if/@endif pairs, because configure will not warn you at all. +# Loop over modules. We used to use the "$extrasub" feature from Autoconf +# but now we're fixing up the Makefile ourselves with the additional +# commands passed to AC_CONFIG_FILES. Use separate variables +# extrasub-{build,host,target} not because there is any reason to split +# the substitutions up that way, but only to remain below the limit of +# 99 commands in a script, for HP-UX sed. +# 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@:>@],, @@ -2577,6 +2578,15 @@ case $enable_bootstrap in esac AC_MSG_CHECKING(for default BUILD_CONFIG) + +AC_ARG_WITH([build-config], + [--with-build-config='NAME NAME2...' + Use config/NAME.mk build configuration], + [case $with_build_config in + yes) with_build_config= ;; + no) with_build_config= BUILD_CONFIG= ;; + esac]) + if test "x${with_build_config}" != x; then BUILD_CONFIG=$with_build_config else @@ -2599,18 +2609,20 @@ fi AC_MSG_RESULT($BUILD_CONFIG) AC_SUBST(BUILD_CONFIG) +extrasub_build= for module in ${build_configdirs} ; do if test -z "${no_recursion}" \ && test -f ${build_subdir}/${module}/Makefile; then echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure" rm -f ${build_subdir}/${module}/Makefile fi - extrasub="$extrasub + extrasub_build="$extrasub_build /^@if build-$module\$/d /^@endif build-$module\$/d /^@if build-$module-$bootstrap_suffix\$/d /^@endif build-$module-$bootstrap_suffix\$/d" done +extrasub_host= for module in ${configdirs} ; do if test -z "${no_recursion}"; then for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do @@ -2620,12 +2632,13 @@ for module in ${configdirs} ; do fi done fi - extrasub="$extrasub + extrasub_host="$extrasub_host /^@if $module\$/d /^@endif $module\$/d /^@if $module-$bootstrap_suffix\$/d /^@endif $module-$bootstrap_suffix\$/d" done +extrasub_target= for module in ${target_configdirs} ; do if test -z "${no_recursion}" \ && test -f ${target_subdir}/${module}/Makefile; then @@ -2639,14 +2652,15 @@ for module in ${target_configdirs} ; do *) target_bootstrap_suffix=no-bootstrap ;; esac - extrasub="$extrasub + extrasub_target="$extrasub_target /^@if target-$module\$/d /^@endif target-$module\$/d /^@if target-$module-$target_bootstrap_suffix\$/d /^@endif target-$module-$target_bootstrap_suffix\$/d" done -extrasub="$extrasub +# Do the final fixup along with target modules. +extrasub_target="$extrasub_target /^@if /,/^@endif /d" # Create the serialization dependencies. This uses a temporary file. @@ -3264,4 +3278,12 @@ case "$target" in esac AC_SUBST(compare_exclusions) -AC_OUTPUT(Makefile) +AC_CONFIG_FILES([Makefile], + [sed "$extrasub_build" Makefile | + sed "$extrasub_host" | + sed "$extrasub_target" > mf$$ + mv -f mf$$ Makefile], + [extrasub_build="$extrasub_build" + extrasub_host="$extrasub_host" + extrasub_target="$extrasub_target"]) +AC_OUTPUT |