a92d090d699b433bc79e18b572737a5f9cd62c42
[Faustine.git] / interpretor / libsndfile-1.0.25 / M4 / extra_pkg.m4
1 # extra_pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
2 #
3 # Copyright (c) 2004 Scott James Remnant <scott@netsplit.com>.
4 #
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 #
19 # As a special exception to the GNU General Public License, if you
20 # distribute this file as part of a program that contains a
21 # configuration script generated by Autoconf, you may include it under
22 # the same distribution terms that you use for the rest of that program.
23
24 # --------------------------------------------------------------
25 # PKG_CHECK_MOD_VERSION(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
26 # [ACTION-IF-NOT-FOUND])
27 #
28 # This is a very slight modification to the macro PKG_CHECK_MODULES that
29 # is in the original pkg.m4 file. It prints the versions in the checking
30 # message (erikd@mega-nerd.com).
31
32 AC_DEFUN([PKG_CHECK_MOD_VERSION],
33 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
34 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
35 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
36
37 pkg_failed=no
38 AC_MSG_CHECKING([for $2 ])
39
40 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
41 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
42
43 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
44 and $1[]_LIBS to avoid the need to call pkg-config.
45 See the pkg-config man page for more details.])
46
47 if test $pkg_failed = yes; then
48 _PKG_SHORT_ERRORS_SUPPORTED
49 if test $_pkg_short_errors_supported = yes; then
50 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"`
51 else
52 $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
53 fi
54 # Put the nasty error message in config.log where it belongs
55 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
56
57 ifelse([$4], , [AC_MSG_ERROR(dnl
58 [Package requirements ($2) were not met:
59
60 $$1_PKG_ERRORS
61
62 Consider adjusting the PKG_CONFIG_PATH environment variable if you
63 installed software in a non-standard prefix.
64
65 _PKG_TEXT
66 ])],
67 [AC_MSG_RESULT([no])
68 $4])
69 elif test $pkg_failed = untried; then
70 ifelse([$4], , [AC_MSG_FAILURE(dnl
71 [The pkg-config script could not be found or is too old. Make sure it
72 is in your PATH or set the PKG_CONFIG environment variable to the full
73 path to pkg-config.
74
75 _PKG_TEXT
76
77 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
78 [$4])
79 else
80 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
81 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
82 AC_MSG_RESULT([yes])
83 ifelse([$3], , :, [$3])
84 fi[]dnl
85 ])# PKG_CHECK_MOD_VERSION