| Alexandre Lision | 7c6f4a6 | 2013-09-05 13:27:01 -0400 | [diff] [blame] | 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 |