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5b043f08 GK |
1 | ## -*- Autoconf -*- |
2 | # Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006 | |
3 | # Free Software Foundation, Inc. | |
4 | # | |
5 | # This file is free software; the Free Software Foundation | |
6 | # gives unlimited permission to copy and/or distribute it, | |
7 | # with or without modifications, as long as this notice is preserved. | |
8 | ||
9 | # serial 6 | |
10 | ||
11 | # AM_ENABLE_MULTILIB([MAKEFILE], [REL-TO-TOP-SRCDIR]) | |
12 | # --------------------------------------------------- | |
13 | # Add --enable-multilib to configure. | |
14 | AC_DEFUN([AM_ENABLE_MULTILIB], | |
15 | [# Default to --enable-multilib | |
16 | AC_ARG_ENABLE(multilib, | |
17 | [ --enable-multilib build many library versions (default)], | |
18 | [case "$enableval" in | |
19 | yes) multilib=yes ;; | |
20 | no) multilib=no ;; | |
21 | *) AC_MSG_ERROR([bad value $enableval for multilib option]) ;; | |
22 | esac], | |
23 | [multilib=yes]) | |
24 | ||
25 | # We may get other options which we leave undocumented: | |
26 | # --with-target-subdir, --with-multisrctop, --with-multisubdir | |
27 | # See config-ml.in if you want the gory details. | |
28 | ||
29 | if test "$srcdir" = "."; then | |
30 | if test "$with_target_subdir" != "."; then | |
31 | multi_basedir="$srcdir/$with_multisrctop../$2" | |
32 | else | |
33 | multi_basedir="$srcdir/$with_multisrctop$2" | |
34 | fi | |
35 | else | |
36 | multi_basedir="$srcdir/$2" | |
37 | fi | |
38 | AC_SUBST(multi_basedir) | |
39 | ||
40 | # Even if the default multilib is not a cross compilation, | |
41 | # it may be that some of the other multilibs are. | |
42 | if test $cross_compiling = no && test $multilib = yes \ | |
43 | && test "x${with_multisubdir}" != x ; then | |
44 | cross_compiling=maybe | |
45 | fi | |
46 | ||
47 | AC_OUTPUT_COMMANDS([ | |
48 | # Only add multilib support code if we just rebuilt the top-level | |
49 | # Makefile. | |
50 | case " $CONFIG_FILES " in | |
51 | *" ]m4_default([$1],Makefile)[ "*) | |
52 | ac_file=]m4_default([$1],Makefile)[ . ${multi_basedir}/config-ml.in | |
53 | ;; | |
54 | esac], | |
55 | [ | |
56 | srcdir="$srcdir" | |
57 | host="$host" | |
58 | target="$target" | |
59 | with_multisubdir="$with_multisubdir" | |
60 | with_multisrctop="$with_multisrctop" | |
61 | with_target_subdir="$with_target_subdir" | |
62 | ac_configure_args="${multilib_arg} ${ac_configure_args}" | |
63 | multi_basedir="$multi_basedir" | |
64 | CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} | |
65 | CC="$CC"])])dnl |