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