m4/with_pkg.m4

   1 dnl with_pkg.m4 - Macros to ease the usage of pkg-config.    -*- Autoconf -*-
   2 dnl
   3 dnl Copyright © 2008 Luca Barbato <lu_zero@gentoo.org>,
   4 dnl                  Diego Pettenò <flameeyes@gentoo.org>
   5 dnl                  Jean-Baptiste Kempf
   6 dnl
   7 dnl This program is free software; you can redistribute it and/or modify
   8 dnl it under the terms of the GNU General Public License as published by
   9 dnl the Free Software Foundation; either version 2 of the License, or
  10 dnl (at your option) any later version.
  11 dnl
  12 dnl This program is distributed in the hope that it will be useful, but
  13 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
  14 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 dnl General Public License for more details.
  16 dnl
  17 dnl You should have received a copy of the GNU General Public License
  18 dnl along with this program; if not, write to the Free Software
  19 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20 dnl
  21 dnl As a special exception to the GNU General Public License, if you
  22 dnl distribute this file as part of a program that contains a
  23 dnl configuration script generated by Autoconf, you may include it under
  24 dnl the same distribution terms that you use for the rest of that program.
  25
  26 dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
  27 dnl                  [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
  28 dnl                  [DESCRIPTION], [DEFAULT])
  29 dnl
  30 dnl Prepare a --with-variable-prefix triggered check for module,
  31 dnl disable by default.
  32 dnl
  33
  34 AC_DEFUN([PKG_WITH_MODULES],
  35 [
  36 AC_REQUIRE([PKG_PROG_PKG_CONFIG])
  37 m4_pushdef([with_arg], m4_tolower([$1]))
  38
  39 m4_pushdef([description],
  40            [m4_default([$5], [build with ]with_arg[ support enabled])])
  41
  42 m4_pushdef([def_arg], [m4_default([$6], [auto])])
  43 m4_pushdef([def_action_if_found], [AS_TR_SH([enable_]with_arg)=yes])
  44 m4_pushdef([def_action_if_not_found], [AS_TR_SH([enable_]with_arg)=no])
  45
  46 m4_case(def_arg,
  47             [yes],[m4_pushdef([with_without], [--disable-]with_arg)],
  48             [m4_pushdef([with_without],[--enable-]with_arg)])
  49
  50 AC_ARG_ENABLE(with_arg,
  51      AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
  52     [AS_TR_SH([enable_]with_arg)=def_arg])
  53
  54 AS_CASE([$AS_TR_SH([enable_]with_arg)],
  55             [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
  56             [auto],[PKG_CHECK_MODULES([$1],[$2],
  57                                         [m4_n([def_action_if_found]) $3],
  58                                         [m4_n([def_action_if_not_found]) $4])])
  59
  60 m4_popdef([with_arg])
  61 m4_popdef([description])
  62 m4_popdef([def_arg])
  63
  64 ]) dnl PKG_WITH_MODULES
  65
  66 dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
  67 dnl                       [DESCRIPTION], [DEFAULT])
  68 dnl
  69
  70 AC_DEFUN([PKG_HAVE_WITH_MODULES],
  71 [
  72 PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
  73
  74 AM_CONDITIONAL([HAVE_][$1],
  75                [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
  76 ])
  77
  78 dnl PKG_ENABLE_MODULES_VLC(VARIABLE-PREFIX,
  79 dnl                         VLC_MODULE_NAME  dnl (if empty, same as VARIABLE-PREFIX)
  80 dnl                         PKG MODULES,
  81 dnl                         [DESCRIPTION], [DEFAULT],
  82 dnl                         [EXTRA_CFLAGS], [EXTRA_LIBS], [EXTRA_CPPFLAGS]
  83 AC_DEFUN([PKG_ENABLE_MODULES_VLC],
  84 [
  85 m4_pushdef([module_name], AS_TR_SH(m4_default(m4_tolower([$2]),m4_tolower([$1]))))
  86 m4_pushdef([enable_arg], m4_tolower([$1]))
  87
  88 PKG_WITH_MODULES([$1],[$3],
  89     VLC_ADD_PLUGIN(module_name)
  90     m4_ifval( m4_normalize([$8]), VLC_ADD_CPPFLAGS(module_name, [$8]))
  91     VLC_ADD_CFLAGS(module_name,[$$1_CFLAGS] [$6])
  92     VLC_ADD_LIBS(module_name,[$$1_LIBS] [$7]),
  93     AS_IF([test x"$AS_TR_SH([enable_]enable_arg)" = "xyes"],
  94         [AC_MSG_ERROR(Library [$3] needed for [m4_tolower([$1])] was not found)],
  95         [AC_MSG_WARN(Library [$3] needed for [m4_tolower([$1])] was not found)]
  96          ),
  97     [$4],[$5])
  98
  99 m4_popdef([module_name])
 100 m4_popdef([enable_arg])
 101
 102 ])
 103