icuSources/aclocal.m4

   1 # generated automatically by aclocal 1.11.1 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   4 # 2005, 2006, 2007, 2008, 2009  Free Software Foundation, Inc.
   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 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  12 # PARTICULAR PURPOSE.
  13
  14 # pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
  15 #
  16 # Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
  17 #
  18 # This program is free software; you can redistribute it and/or modify
  19 # it under the terms of the GNU General Public License as published by
  20 # the Free Software Foundation; either version 2 of the License, or
  21 # (at your option) any later version.
  22 #
  23 # This program is distributed in the hope that it will be useful, but
  24 # WITHOUT ANY WARRANTY; without even the implied warranty of
  25 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  26 # General Public License for more details.
  27 #
  28 # You should have received a copy of the GNU General Public License
  29 # along with this program; if not, write to the Free Software
  30 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  31 #
  32 # As a special exception to the GNU General Public License, if you
  33 # distribute this file as part of a program that contains a
  34 # configuration script generated by Autoconf, you may include it under
  35 # the same distribution terms that you use for the rest of that program.
  36
  37 # PKG_PROG_PKG_CONFIG([MIN-VERSION])
  38 # ----------------------------------
  39 AC_DEFUN([PKG_PROG_PKG_CONFIG],
  40 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
  41 m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
  42 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
  43 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
  44         AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
  45 fi
  46 if test -n "$PKG_CONFIG"; then
  47         _pkg_min_version=m4_default([$1], [0.9.0])
  48         AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
  49         if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
  50                 AC_MSG_RESULT([yes])
  51         else
  52                 AC_MSG_RESULT([no])
  53                 PKG_CONFIG=""
  54         fi
  55
  56 fi[]dnl
  57 ])# PKG_PROG_PKG_CONFIG
  58
  59 # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
  60 #
  61 # Check to see whether a particular set of modules exists.  Similar
  62 # to PKG_CHECK_MODULES(), but does not set variables or print errors.
  63 #
  64 #
  65 # Similar to PKG_CHECK_MODULES, make sure that the first instance of
  66 # this or PKG_CHECK_MODULES is called, or make sure to call
  67 # PKG_CHECK_EXISTS manually
  68 # --------------------------------------------------------------
  69 AC_DEFUN([PKG_CHECK_EXISTS],
  70 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
  71 if test -n "$PKG_CONFIG" && \
  72     AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
  73   m4_ifval([$2], [$2], [:])
  74 m4_ifvaln([$3], [else
  75   $3])dnl
  76 fi])
  77
  78
  79 # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
  80 # ---------------------------------------------
  81 m4_define([_PKG_CONFIG],
  82 [if test -n "$$1"; then
  83     pkg_cv_[]$1="$$1"
  84  elif test -n "$PKG_CONFIG"; then
  85     PKG_CHECK_EXISTS([$3],
  86                      [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
  87                      [pkg_failed=yes])
  88  else
  89     pkg_failed=untried
  90 fi[]dnl
  91 ])# _PKG_CONFIG
  92
  93 # _PKG_SHORT_ERRORS_SUPPORTED
  94 # -----------------------------
  95 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
  96 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
  97 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
  98         _pkg_short_errors_supported=yes
  99 else
 100         _pkg_short_errors_supported=no
 101 fi[]dnl
 102 ])# _PKG_SHORT_ERRORS_SUPPORTED
 103
 104
 105 # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
 106 # [ACTION-IF-NOT-FOUND])
 107 #
 108 #
 109 # Note that if there is a possibility the first call to
 110 # PKG_CHECK_MODULES might not happen, you should be sure to include an
 111 # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
 112 #
 113 #
 114 # --------------------------------------------------------------
 115 AC_DEFUN([PKG_CHECK_MODULES],
 116 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 117 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
 118 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
 119
 120 pkg_failed=no
 121 AC_MSG_CHECKING([for $1])
 122
 123 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
 124 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
 125
 126 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
 127 and $1[]_LIBS to avoid the need to call pkg-config.
 128 See the pkg-config man page for more details.])
 129
 130 if test $pkg_failed = yes; then
 131         _PKG_SHORT_ERRORS_SUPPORTED
 132         if test $_pkg_short_errors_supported = yes; then
 133                 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1`
 134         else
 135                 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1`
 136         fi
 137         # Put the nasty error message in config.log where it belongs
 138         echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
 139
 140         ifelse([$4], , [AC_MSG_ERROR(dnl
 141 [Package requirements ($2) were not met:
 142
 143 $$1_PKG_ERRORS
 144
 145 Consider adjusting the PKG_CONFIG_PATH environment variable if you
 146 installed software in a non-standard prefix.
 147
 148 _PKG_TEXT
 149 ])],
 150                 [AC_MSG_RESULT([no])
 151                 $4])
 152 elif test $pkg_failed = untried; then
 153         ifelse([$4], , [AC_MSG_FAILURE(dnl
 154 [The pkg-config script could not be found or is too old.  Make sure it
 155 is in your PATH or set the PKG_CONFIG environment variable to the full
 156 path to pkg-config.
 157
 158 _PKG_TEXT
 159
 160 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
 161                 [$4])
 162 else
 163         $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
 164         $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
 165         AC_MSG_RESULT([yes])
 166         ifelse([$3], , :, [$3])
 167 fi[]dnl
 168 ])# PKG_CHECK_MODULES
 169
 170 m4_include([acinclude.m4])