1dnl Fix Autoconf-2.59 AC_CONFIG_SUBDIRS whitespace mangling, 2dnl by overriding the broken internal Autoconf macro with a 3dnl backport of the 2.60 fix. 4dnl 5dnl This file should be a no-op for Autoconf versions != 2.59. 6dnl It can be removed once the complete tree has moved to a 7dnl newer Autoconf version. 8 9dnl m4_PACKAGE_VERSION is an undocumented Autoconf macro. 10dnl We use it because this fix is intended for 2.59 only. 11dnl A feature test for the broken AC_CONFIG_SUBDIRS instead 12dnl would be better but is tricky. 13dnl 14dnl Use ifdef/ifelse over m4_ifdef/m4_ifelse to be clean for 2.13. 15dnl Redefine AC_CONFIG_SUBDIRS so aclocal pulls in this file 16dnl when needed. 17 18ifdef([m4_PACKAGE_VERSION], 19[ifelse(m4_PACKAGE_VERSION, [2.59], [ 20 21dnl Redefine AC_CONFIG_SUBDIRS so this file is picked up if needed. 22AC_DEFUN([AC_CONFIG_SUBDIRS], defn([AC_CONFIG_SUBDIRS])) 23 24dnl Override the broken macro. 25# _AC_OUTPUT_SUBDIRS 26# ------------------ 27# This is a subroutine of AC_OUTPUT, but it does not go into 28# config.status, rather, it is called after running config.status. 29m4_define([_AC_OUTPUT_SUBDIRS], 30[ 31# 32# CONFIG_SUBDIRS section, as fixed in confsubdir.m4. 33# 34if test "$no_recursion" != yes; then 35 36 # Remove --cache-file and --srcdir arguments so they do not pile up. 37 ac_sub_configure_args= 38 ac_prev= 39 eval "set x $ac_configure_args" 40 shift 41 for ac_arg 42 do 43 if test -n "$ac_prev"; then 44 ac_prev= 45 continue 46 fi 47 case $ac_arg in 48 -cache-file | --cache-file | --cache-fil | --cache-fi \ 49 | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c) 50 ac_prev=cache_file ;; 51 -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \ 52 | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \ 53 | --c=*) 54 ;; 55 --config-cache | -C) 56 ;; 57 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr) 58 ac_prev=srcdir ;; 59 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*) 60 ;; 61 -prefix | --prefix | --prefi | --pref | --pre | --pr | --p) 62 ac_prev=prefix ;; 63 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*) 64 ;; 65 *) 66 case $ac_arg in 67 *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 68 esac 69 ac_sub_configure_args="$ac_sub_configure_args '$ac_arg'" ;; 70 esac 71 done 72 73 # Always prepend --prefix to ensure using the same prefix 74 # in subdir configurations. 75 ac_arg="--prefix=$prefix" 76 case $ac_arg in 77 *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 78 esac 79 ac_sub_configure_args="$ac_arg $ac_sub_configure_args" 80 81 ac_popdir=`pwd` 82 for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue 83 84 # Do not complain, so a configure script can configure whichever 85 # parts of a large source tree are present. 86 test -d "$srcdir/$ac_dir" || continue 87 88 AC_MSG_NOTICE([configuring in $ac_dir]) 89 AS_MKDIR_P(["$ac_dir"]) 90 _AC_SRCPATHS(["$ac_dir"]) 91 92 cd "$ac_dir" 93 94 # Check for guested configure; otherwise get Cygnus style configure. 95 if test -f "$ac_srcdir/configure.gnu"; then 96 ac_sub_configure=$ac_srcdir/configure.gnu 97 elif test -f "$ac_srcdir/configure"; then 98 ac_sub_configure=$ac_srcdir/configure 99 elif test -f "$ac_srcdir/configure.in"; then 100 # This should be Cygnus configure. 101 ac_sub_configure=$ac_aux_dir/configure 102 else 103 AC_MSG_WARN([no configuration information is in $ac_dir]) 104 ac_sub_configure= 105 fi 106 107 # The recursion is here. 108 if test -n "$ac_sub_configure"; then 109 # Make the cache file name correct relative to the subdirectory. 110 case $cache_file in 111 [[\\/]]* | ?:[[\\/]]* ) ac_sub_cache_file=$cache_file ;; 112 *) # Relative path. 113 ac_sub_cache_file=$ac_top_builddir$cache_file ;; 114 esac 115 116 AC_MSG_NOTICE([running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir]) 117 # The eval makes quoting arguments work. 118 eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \ 119 --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" || 120 AC_MSG_ERROR([$ac_sub_configure failed for $ac_dir]) 121 fi 122 123 cd "$ac_popdir" 124 done 125fi 126])# _AC_OUTPUT_SUBDIRS 127])]) 128