|
| 1 | +# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- |
| 2 | +# serial 12 (pkg-config-0.29.2) |
| 3 | + |
| 4 | +dnl Copyright © 2004 Scott James Remnant <[email protected]>. |
| 5 | +dnl Copyright © 2012-2015 Dan Nicholson <[email protected]> |
| 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 |
| 20 | +dnl 02111-1307, USA. |
| 21 | +dnl |
| 22 | +dnl As a special exception to the GNU General Public License, if you |
| 23 | +dnl distribute this file as part of a program that contains a |
| 24 | +dnl configuration script generated by Autoconf, you may include it under |
| 25 | +dnl the same distribution terms that you use for the rest of that |
| 26 | +dnl program. |
| 27 | + |
| 28 | +dnl PKG_PREREQ(MIN-VERSION) |
| 29 | +dnl ----------------------- |
| 30 | +dnl Since: 0.29 |
| 31 | +dnl |
| 32 | +dnl Verify that the version of the pkg-config macros are at least |
| 33 | +dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's |
| 34 | +dnl installed version of pkg-config, this checks the developer's version |
| 35 | +dnl of pkg.m4 when generating configure. |
| 36 | +dnl |
| 37 | +dnl To ensure that this macro is defined, also add: |
| 38 | +dnl m4_ifndef([PKG_PREREQ], |
| 39 | +dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) |
| 40 | +dnl |
| 41 | +dnl See the "Since" comment for each macro you use to see what version |
| 42 | +dnl of the macros you require. |
| 43 | +m4_defun([PKG_PREREQ], |
| 44 | +[m4_define([PKG_MACROS_VERSION], [0.29.2]) |
| 45 | +m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, |
| 46 | + [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) |
| 47 | +])dnl PKG_PREREQ |
| 48 | + |
| 49 | +dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) |
| 50 | +dnl ---------------------------------- |
| 51 | +dnl Since: 0.16 |
| 52 | +dnl |
| 53 | +dnl Search for the pkg-config tool and set the PKG_CONFIG variable to |
| 54 | +dnl first found in the path. Checks that the version of pkg-config found |
| 55 | +dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is |
| 56 | +dnl used since that's the first version where most current features of |
| 57 | +dnl pkg-config existed. |
| 58 | +AC_DEFUN([PKG_PROG_PKG_CONFIG], |
| 59 | +[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) |
| 60 | +m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) |
| 61 | +m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) |
| 62 | +AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) |
| 63 | +AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) |
| 64 | +AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) |
| 65 | +
|
| 66 | +if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then |
| 67 | + AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) |
| 68 | +fi |
| 69 | +if test -n "$PKG_CONFIG"; then |
| 70 | + _pkg_min_version=m4_default([$1], [0.9.0]) |
| 71 | + AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) |
| 72 | + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then |
| 73 | + AC_MSG_RESULT([yes]) |
| 74 | + else |
| 75 | + AC_MSG_RESULT([no]) |
| 76 | + PKG_CONFIG="" |
| 77 | + fi |
| 78 | +fi[]dnl |
| 79 | +])dnl PKG_PROG_PKG_CONFIG |
| 80 | + |
| 81 | +dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) |
| 82 | +dnl ------------------------------------------------------------------- |
| 83 | +dnl Since: 0.18 |
| 84 | +dnl |
| 85 | +dnl Check to see whether a particular set of modules exists. Similar to |
| 86 | +dnl PKG_CHECK_MODULES(), but does not set variables or print errors. |
| 87 | +dnl |
| 88 | +dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) |
| 89 | +dnl only at the first occurence in configure.ac, so if the first place |
| 90 | +dnl it's called might be skipped (such as if it is within an "if", you |
| 91 | +dnl have to call PKG_CHECK_EXISTS manually |
| 92 | +AC_DEFUN([PKG_CHECK_EXISTS], |
| 93 | +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| 94 | +if test -n "$PKG_CONFIG" && \ |
| 95 | + AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then |
| 96 | + m4_default([$2], [:]) |
| 97 | +m4_ifvaln([$3], [else |
| 98 | + $3])dnl |
| 99 | +fi]) |
| 100 | + |
| 101 | +dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) |
| 102 | +dnl --------------------------------------------- |
| 103 | +dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting |
| 104 | +dnl pkg_failed based on the result. |
| 105 | +m4_define([_PKG_CONFIG], |
| 106 | +[if test -n "$$1"; then |
| 107 | + pkg_cv_[]$1="$$1" |
| 108 | + elif test -n "$PKG_CONFIG"; then |
| 109 | + PKG_CHECK_EXISTS([$3], |
| 110 | + [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` |
| 111 | + test "x$?" != "x0" && pkg_failed=yes ], |
| 112 | + [pkg_failed=yes]) |
| 113 | + else |
| 114 | + pkg_failed=untried |
| 115 | +fi[]dnl |
| 116 | +])dnl _PKG_CONFIG |
| 117 | + |
| 118 | +dnl _PKG_SHORT_ERRORS_SUPPORTED |
| 119 | +dnl --------------------------- |
| 120 | +dnl Internal check to see if pkg-config supports short errors. |
| 121 | +AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], |
| 122 | +[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) |
| 123 | +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then |
| 124 | + _pkg_short_errors_supported=yes |
| 125 | +else |
| 126 | + _pkg_short_errors_supported=no |
| 127 | +fi[]dnl |
| 128 | +])dnl _PKG_SHORT_ERRORS_SUPPORTED |
| 129 | + |
| 130 | + |
| 131 | +dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], |
| 132 | +dnl [ACTION-IF-NOT-FOUND]) |
| 133 | +dnl -------------------------------------------------------------- |
| 134 | +dnl Since: 0.4.0 |
| 135 | +dnl |
| 136 | +dnl Note that if there is a possibility the first call to |
| 137 | +dnl PKG_CHECK_MODULES might not happen, you should be sure to include an |
| 138 | +dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac |
| 139 | +AC_DEFUN([PKG_CHECK_MODULES], |
| 140 | +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| 141 | +AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl |
| 142 | +AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl |
| 143 | +
|
| 144 | +pkg_failed=no |
| 145 | +AC_MSG_CHECKING([for $2]) |
| 146 | +
|
| 147 | +_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) |
| 148 | +_PKG_CONFIG([$1][_LIBS], [libs], [$2]) |
| 149 | +
|
| 150 | +m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS |
| 151 | +and $1[]_LIBS to avoid the need to call pkg-config. |
| 152 | +See the pkg-config man page for more details.]) |
| 153 | +
|
| 154 | +if test $pkg_failed = yes; then |
| 155 | + AC_MSG_RESULT([no]) |
| 156 | + _PKG_SHORT_ERRORS_SUPPORTED |
| 157 | + if test $_pkg_short_errors_supported = yes; then |
| 158 | + $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` |
| 159 | + else |
| 160 | + $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` |
| 161 | + fi |
| 162 | + # Put the nasty error message in config.log where it belongs |
| 163 | + echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD |
| 164 | +
|
| 165 | + m4_default([$4], [AC_MSG_ERROR( |
| 166 | +[Package requirements ($2) were not met: |
| 167 | +
|
| 168 | +$$1_PKG_ERRORS |
| 169 | +
|
| 170 | +Consider adjusting the PKG_CONFIG_PATH environment variable if you |
| 171 | +installed software in a non-standard prefix. |
| 172 | +
|
| 173 | +_PKG_TEXT])[]dnl |
| 174 | + ]) |
| 175 | +elif test $pkg_failed = untried; then |
| 176 | + AC_MSG_RESULT([no]) |
| 177 | + m4_default([$4], [AC_MSG_FAILURE( |
| 178 | +[The pkg-config script could not be found or is too old. Make sure it |
| 179 | +is in your PATH or set the PKG_CONFIG environment variable to the full |
| 180 | +path to pkg-config. |
| 181 | +
|
| 182 | +_PKG_TEXT |
| 183 | +
|
| 184 | +To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl |
| 185 | + ]) |
| 186 | +else |
| 187 | + $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS |
| 188 | + $1[]_LIBS=$pkg_cv_[]$1[]_LIBS |
| 189 | + AC_MSG_RESULT([yes]) |
| 190 | + $3 |
| 191 | +fi[]dnl |
| 192 | +])dnl PKG_CHECK_MODULES |
| 193 | + |
| 194 | + |
| 195 | +dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], |
| 196 | +dnl [ACTION-IF-NOT-FOUND]) |
| 197 | +dnl --------------------------------------------------------------------- |
| 198 | +dnl Since: 0.29 |
| 199 | +dnl |
| 200 | +dnl Checks for existence of MODULES and gathers its build flags with |
| 201 | +dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags |
| 202 | +dnl and VARIABLE-PREFIX_LIBS from --libs. |
| 203 | +dnl |
| 204 | +dnl Note that if there is a possibility the first call to |
| 205 | +dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to |
| 206 | +dnl include an explicit call to PKG_PROG_PKG_CONFIG in your |
| 207 | +dnl configure.ac. |
| 208 | +AC_DEFUN([PKG_CHECK_MODULES_STATIC], |
| 209 | +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| 210 | +_save_PKG_CONFIG=$PKG_CONFIG |
| 211 | +PKG_CONFIG="$PKG_CONFIG --static" |
| 212 | +PKG_CHECK_MODULES($@) |
| 213 | +PKG_CONFIG=$_save_PKG_CONFIG[]dnl |
| 214 | +])dnl PKG_CHECK_MODULES_STATIC |
| 215 | + |
| 216 | + |
| 217 | +dnl PKG_INSTALLDIR([DIRECTORY]) |
| 218 | +dnl ------------------------- |
| 219 | +dnl Since: 0.27 |
| 220 | +dnl |
| 221 | +dnl Substitutes the variable pkgconfigdir as the location where a module |
| 222 | +dnl should install pkg-config .pc files. By default the directory is |
| 223 | +dnl $libdir/pkgconfig, but the default can be changed by passing |
| 224 | +dnl DIRECTORY. The user can override through the --with-pkgconfigdir |
| 225 | +dnl parameter. |
| 226 | +AC_DEFUN([PKG_INSTALLDIR], |
| 227 | +[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) |
| 228 | +m4_pushdef([pkg_description], |
| 229 | + [pkg-config installation directory @<:@]pkg_default[@:>@]) |
| 230 | +AC_ARG_WITH([pkgconfigdir], |
| 231 | + [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, |
| 232 | + [with_pkgconfigdir=]pkg_default) |
| 233 | +AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) |
| 234 | +m4_popdef([pkg_default]) |
| 235 | +m4_popdef([pkg_description]) |
| 236 | +])dnl PKG_INSTALLDIR |
| 237 | + |
| 238 | + |
| 239 | +dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) |
| 240 | +dnl -------------------------------- |
| 241 | +dnl Since: 0.27 |
| 242 | +dnl |
| 243 | +dnl Substitutes the variable noarch_pkgconfigdir as the location where a |
| 244 | +dnl module should install arch-independent pkg-config .pc files. By |
| 245 | +dnl default the directory is $datadir/pkgconfig, but the default can be |
| 246 | +dnl changed by passing DIRECTORY. The user can override through the |
| 247 | +dnl --with-noarch-pkgconfigdir parameter. |
| 248 | +AC_DEFUN([PKG_NOARCH_INSTALLDIR], |
| 249 | +[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) |
| 250 | +m4_pushdef([pkg_description], |
| 251 | + [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) |
| 252 | +AC_ARG_WITH([noarch-pkgconfigdir], |
| 253 | + [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, |
| 254 | + [with_noarch_pkgconfigdir=]pkg_default) |
| 255 | +AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) |
| 256 | +m4_popdef([pkg_default]) |
| 257 | +m4_popdef([pkg_description]) |
| 258 | +])dnl PKG_NOARCH_INSTALLDIR |
| 259 | + |
| 260 | + |
| 261 | +dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, |
| 262 | +dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) |
| 263 | +dnl ------------------------------------------- |
| 264 | +dnl Since: 0.28 |
| 265 | +dnl |
| 266 | +dnl Retrieves the value of the pkg-config variable for the given module. |
| 267 | +AC_DEFUN([PKG_CHECK_VAR], |
| 268 | +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| 269 | +AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl |
| 270 | +
|
| 271 | +_PKG_CONFIG([$1], [variable="][$3]["], [$2]) |
| 272 | +AS_VAR_COPY([$1], [pkg_cv_][$1]) |
| 273 | +
|
| 274 | +AS_VAR_IF([$1], [""], [$5], [$4])dnl |
| 275 | +])dnl PKG_CHECK_VAR |
0 commit comments