1 # generated automatically by aclocal 1.15 -*- Autoconf -*- 2 3 # Copyright (C) 1996-2014 Free Software Foundation, Inc. 4 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 m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) 15 dnl pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 16 dnl serial 11 (pkg-config-0.29) 17 dnl 18 dnl Copyright 2004 Scott James Remnant <scott (a] netsplit.com>. 19 dnl Copyright 2012-2015 Dan Nicholson <dbn.lists (a] gmail.com> 20 dnl 21 dnl This program is free software; you can redistribute it and/or modify 22 dnl it under the terms of the GNU General Public License as published by 23 dnl the Free Software Foundation; either version 2 of the License, or 24 dnl (at your option) any later version. 25 dnl 26 dnl This program is distributed in the hope that it will be useful, but 27 dnl WITHOUT ANY WARRANTY; without even the implied warranty of 28 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 29 dnl General Public License for more details. 30 dnl 31 dnl You should have received a copy of the GNU General Public License 32 dnl along with this program; if not, write to the Free Software 33 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 34 dnl 02111-1307, USA. 35 dnl 36 dnl As a special exception to the GNU General Public License, if you 37 dnl distribute this file as part of a program that contains a 38 dnl configuration script generated by Autoconf, you may include it under 39 dnl the same distribution terms that you use for the rest of that 40 dnl program. 41 42 dnl PKG_PREREQ(MIN-VERSION) 43 dnl ----------------------- 44 dnl Since: 0.29 45 dnl 46 dnl Verify that the version of the pkg-config macros are at least 47 dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's 48 dnl installed version of pkg-config, this checks the developer's version 49 dnl of pkg.m4 when generating configure. 50 dnl 51 dnl To ensure that this macro is defined, also add: 52 dnl m4_ifndef([PKG_PREREQ], 53 dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) 54 dnl 55 dnl See the "Since" comment for each macro you use to see what version 56 dnl of the macros you require. 57 m4_defun([PKG_PREREQ], 58 [m4_define([PKG_MACROS_VERSION], [0.29]) 59 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, 60 [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) 61 ])dnl PKG_PREREQ 62 63 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) 64 dnl ---------------------------------- 65 dnl Since: 0.16 66 dnl 67 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to 68 dnl first found in the path. Checks that the version of pkg-config found 69 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is 70 dnl used since that's the first version where most current features of 71 dnl pkg-config existed. 72 AC_DEFUN([PKG_PROG_PKG_CONFIG], 73 [m4_pattern_forbid([^_?PKG_[A-Z_]+$]) 74 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) 75 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) 76 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) 77 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) 78 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) 79 80 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then 81 AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) 82 fi 83 if test -n "$PKG_CONFIG"; then 84 _pkg_min_version=m4_default([$1], [0.9.0]) 85 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) 86 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then 87 AC_MSG_RESULT([yes]) 88 else 89 AC_MSG_RESULT([no]) 90 PKG_CONFIG="" 91 fi 92 fi[]dnl 93 ])dnl PKG_PROG_PKG_CONFIG 94 95 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 96 dnl ------------------------------------------------------------------- 97 dnl Since: 0.18 98 dnl 99 dnl Check to see whether a particular set of modules exists. Similar to 100 dnl PKG_CHECK_MODULES(), but does not set variables or print errors. 101 dnl 102 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 103 dnl only at the first occurence in configure.ac, so if the first place 104 dnl it's called might be skipped (such as if it is within an "if", you 105 dnl have to call PKG_CHECK_EXISTS manually 106 AC_DEFUN([PKG_CHECK_EXISTS], 107 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 108 if test -n "$PKG_CONFIG" && \ 109 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then 110 m4_default([$2], [:]) 111 m4_ifvaln([$3], [else 112 $3])dnl 113 fi]) 114 115 dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) 116 dnl --------------------------------------------- 117 dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting 118 dnl pkg_failed based on the result. 119 m4_define([_PKG_CONFIG], 120 [if test -n "$$1"; then 121 pkg_cv_[]$1="$$1" 122 elif test -n "$PKG_CONFIG"; then 123 PKG_CHECK_EXISTS([$3], 124 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` 125 test "x$?" != "x0" && pkg_failed=yes ], 126 [pkg_failed=yes]) 127 else 128 pkg_failed=untried 129 fi[]dnl 130 ])dnl _PKG_CONFIG 131 132 dnl _PKG_SHORT_ERRORS_SUPPORTED 133 dnl --------------------------- 134 dnl Internal check to see if pkg-config supports short errors. 135 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], 136 [AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 137 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then 138 _pkg_short_errors_supported=yes 139 else 140 _pkg_short_errors_supported=no 141 fi[]dnl 142 ])dnl _PKG_SHORT_ERRORS_SUPPORTED 143 144 145 dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 146 dnl [ACTION-IF-NOT-FOUND]) 147 dnl -------------------------------------------------------------- 148 dnl Since: 0.4.0 149 dnl 150 dnl Note that if there is a possibility the first call to 151 dnl PKG_CHECK_MODULES might not happen, you should be sure to include an 152 dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac 153 AC_DEFUN([PKG_CHECK_MODULES], 154 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 155 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl 156 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl 157 158 pkg_failed=no 159 AC_MSG_CHECKING([for $1]) 160 161 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) 162 _PKG_CONFIG([$1][_LIBS], [libs], [$2]) 163 164 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS 165 and $1[]_LIBS to avoid the need to call pkg-config. 166 See the pkg-config man page for more details.]) 167 168 if test $pkg_failed = yes; then 169 AC_MSG_RESULT([no]) 170 _PKG_SHORT_ERRORS_SUPPORTED 171 if test $_pkg_short_errors_supported = yes; then 172 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` 173 else 174 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` 175 fi 176 # Put the nasty error message in config.log where it belongs 177 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD 178 179 m4_default([$4], [AC_MSG_ERROR( 180 [Package requirements ($2) were not met: 181 182 $$1_PKG_ERRORS 183 184 Consider adjusting the PKG_CONFIG_PATH environment variable if you 185 installed software in a non-standard prefix. 186 187 _PKG_TEXT])[]dnl 188 ]) 189 elif test $pkg_failed = untried; then 190 AC_MSG_RESULT([no]) 191 m4_default([$4], [AC_MSG_FAILURE( 192 [The pkg-config script could not be found or is too old. Make sure it 193 is in your PATH or set the PKG_CONFIG environment variable to the full 194 path to pkg-config. 195 196 _PKG_TEXT 197 198 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl 199 ]) 200 else 201 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS 202 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS 203 AC_MSG_RESULT([yes]) 204 $3 205 fi[]dnl 206 ])dnl PKG_CHECK_MODULES 207 208 209 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 210 dnl [ACTION-IF-NOT-FOUND]) 211 dnl --------------------------------------------------------------------- 212 dnl Since: 0.29 213 dnl 214 dnl Checks for existence of MODULES and gathers its build flags with 215 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags 216 dnl and VARIABLE-PREFIX_LIBS from --libs. 217 dnl 218 dnl Note that if there is a possibility the first call to 219 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to 220 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your 221 dnl configure.ac. 222 AC_DEFUN([PKG_CHECK_MODULES_STATIC], 223 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 224 _save_PKG_CONFIG=$PKG_CONFIG 225 PKG_CONFIG="$PKG_CONFIG --static" 226 PKG_CHECK_MODULES($@) 227 PKG_CONFIG=$_save_PKG_CONFIG[]dnl 228 ])dnl PKG_CHECK_MODULES_STATIC 229 230 231 dnl PKG_INSTALLDIR([DIRECTORY]) 232 dnl ------------------------- 233 dnl Since: 0.27 234 dnl 235 dnl Substitutes the variable pkgconfigdir as the location where a module 236 dnl should install pkg-config .pc files. By default the directory is 237 dnl $libdir/pkgconfig, but the default can be changed by passing 238 dnl DIRECTORY. The user can override through the --with-pkgconfigdir 239 dnl parameter. 240 AC_DEFUN([PKG_INSTALLDIR], 241 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) 242 m4_pushdef([pkg_description], 243 [pkg-config installation directory @<:@]pkg_default[@:>@]) 244 AC_ARG_WITH([pkgconfigdir], 245 [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, 246 [with_pkgconfigdir=]pkg_default) 247 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) 248 m4_popdef([pkg_default]) 249 m4_popdef([pkg_description]) 250 ])dnl PKG_INSTALLDIR 251 252 253 dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) 254 dnl -------------------------------- 255 dnl Since: 0.27 256 dnl 257 dnl Substitutes the variable noarch_pkgconfigdir as the location where a 258 dnl module should install arch-independent pkg-config .pc files. By 259 dnl default the directory is $datadir/pkgconfig, but the default can be 260 dnl changed by passing DIRECTORY. The user can override through the 261 dnl --with-noarch-pkgconfigdir parameter. 262 AC_DEFUN([PKG_NOARCH_INSTALLDIR], 263 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) 264 m4_pushdef([pkg_description], 265 [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) 266 AC_ARG_WITH([noarch-pkgconfigdir], 267 [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, 268 [with_noarch_pkgconfigdir=]pkg_default) 269 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) 270 m4_popdef([pkg_default]) 271 m4_popdef([pkg_description]) 272 ])dnl PKG_NOARCH_INSTALLDIR 273 274 275 dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, 276 dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 277 dnl ------------------------------------------- 278 dnl Since: 0.28 279 dnl 280 dnl Retrieves the value of the pkg-config variable for the given module. 281 AC_DEFUN([PKG_CHECK_VAR], 282 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 283 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl 284 285 _PKG_CONFIG([$1], [variable="][$3]["], [$2]) 286 AS_VAR_COPY([$1], [pkg_cv_][$1]) 287 288 AS_VAR_IF([$1], [""], [$5], [$4])dnl 289 ])dnl PKG_CHECK_VAR 290 291
