| 1 | dnl Add --enable-multilib to configure.
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| 2 | dnl Usage: AM_ENABLE_MULTILIB([makefile, [rel-to-top-srcdir]])
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| 3 |
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| 4 | AC_DEFUN([AM_ENABLE_MULTILIB], [
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| 5 | dnl Default to --enable-multilib
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| 6 | AC_ARG_ENABLE(multilib,
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| 7 | [ --enable-multilib build many library versions (default)],
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| 8 | [case "${enableval}" in
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| 9 | yes) multilib=yes ;;
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| 10 | no) multilib=no ;;
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| 11 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
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| 12 | esac], [multilib=yes]
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| 13 |
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| 14 | dnl We may get other options which we are undocumented:
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| 15 | dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
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| 16 |
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| 17 | if test "[$]{srcdir}" = "."; then
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| 18 | if test "[$]{with_target_subdir}" != "."; then
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| 19 | multi_basedir="[$]{srcdir}/[$]{with_multisrctop}../ifelse([$2],,,[$2])"
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| 20 | else
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| 21 | multi_basedir="[$]{srcdir}/[$]{with_multisrctop}ifelse([$2],,,[$2])"
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| 22 | fi
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| 23 | else
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| 24 | multi_basedir="[$]{srcdir}/ifelse([$2],,,[$2])"
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| 25 | fi
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| 26 | AC_SUBST(multi_basedir)
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| 27 |
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| 28 | AC_OUTPUT_COMMANDS([
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| 29 | if test -n "$CONFIG_FILES"; then
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| 30 | ac_file=ifelse([$1],,Makefile,[$1]) . ..ifelse([$2],,,/[$2])/config-ml.in
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| 31 | fi], [
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| 32 | srcdir="$srcdir"
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| 33 | host="$host"
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| 34 | target="$target"
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| 35 | with_multisubdir="$with_multisubdir"
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| 36 | with_multisrctop="$with_multisrctop"
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| 37 | with_target_subdir="$with_target_subdir"
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| 38 | ac_configure_args="${multilib_arg} ${ac_configure_args}"
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| 39 | multi_basedir="$multi_basedir"
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| 40 | CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
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| 41 | CC="$CC"]))dnl
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