| # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- |
| # serial 12 (pkg-config-0.29.2) |
| |
| dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>. |
| dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com> |
| dnl |
| dnl This program is free software; you can redistribute it and/or modify |
| dnl it under the terms of the GNU General Public License as published by |
| dnl the Free Software Foundation; either version 2 of the License, or |
| dnl (at your option) any later version. |
| dnl |
| dnl This program is distributed in the hope that it will be useful, but |
| dnl WITHOUT ANY WARRANTY; without even the implied warranty of |
| dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| dnl General Public License for more details. |
| dnl |
| dnl You should have received a copy of the GNU General Public License |
| dnl along with this program; if not, write to the Free Software |
| dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| dnl 02111-1307, USA. |
| dnl |
| dnl As a special exception to the GNU General Public License, if you |
| dnl distribute this file as part of a program that contains a |
| dnl configuration script generated by Autoconf, you may include it under |
| dnl the same distribution terms that you use for the rest of that |
| dnl program. |
| |
| dnl PKG_PREREQ(MIN-VERSION) |
| dnl ----------------------- |
| dnl Since: 0.29 |
| dnl |
| dnl Verify that the version of the pkg-config macros are at least |
| dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's |
| dnl installed version of pkg-config, this checks the developer's version |
| dnl of pkg.m4 when generating configure. |
| dnl |
| dnl To ensure that this macro is defined, also add: |
| dnl m4_ifndef([PKG_PREREQ], |
| dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) |
| dnl |
| dnl See the "Since" comment for each macro you use to see what version |
| dnl of the macros you require. |
| m4_defun([PKG_PREREQ], |
| [m4_define([PKG_MACROS_VERSION], [0.29.2]) |
| m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, |
| [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) |
| ])dnl PKG_PREREQ |
| |
| dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) |
| dnl ---------------------------------- |
| dnl Since: 0.16 |
| dnl |
| dnl Search for the pkg-config tool and set the PKG_CONFIG variable to |
| dnl first found in the path. Checks that the version of pkg-config found |
| dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is |
| dnl used since that's the first version where most current features of |
| dnl pkg-config existed. |
| AC_DEFUN([PKG_PROG_PKG_CONFIG], |
| [m4_pattern_forbid([^_?PKG_[A-Z_]+$]) |
| m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) |
| m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) |
| AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) |
| AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) |
| AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) |
| |
| if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then |
| AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) |
| fi |
| if test -n "$PKG_CONFIG"; then |
| _pkg_min_version=m4_default([$1], [0.9.0]) |
| AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) |
| if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then |
| AC_MSG_RESULT([yes]) |
| else |
| AC_MSG_RESULT([no]) |
| PKG_CONFIG="" |
| fi |
| fi[]dnl |
| ])dnl PKG_PROG_PKG_CONFIG |
| |
| dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) |
| dnl ------------------------------------------------------------------- |
| dnl Since: 0.18 |
| dnl |
| dnl Check to see whether a particular set of modules exists. Similar to |
| dnl PKG_CHECK_MODULES(), but does not set variables or print errors. |
| dnl |
| dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) |
| dnl only at the first occurence in configure.ac, so if the first place |
| dnl it's called might be skipped (such as if it is within an "if", you |
| dnl have to call PKG_CHECK_EXISTS manually |
| AC_DEFUN([PKG_CHECK_EXISTS], |
| [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| if test -n "$PKG_CONFIG" && \ |
| AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then |
| m4_default([$2], [:]) |
| m4_ifvaln([$3], [else |
| $3])dnl |
| fi]) |
| |
| dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) |
| dnl --------------------------------------------- |
| dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting |
| dnl pkg_failed based on the result. |
| m4_define([_PKG_CONFIG], |
| [if test -n "$$1"; then |
| pkg_cv_[]$1="$$1" |
| elif test -n "$PKG_CONFIG"; then |
| PKG_CHECK_EXISTS([$3], |
| [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` |
| test "x$?" != "x0" && pkg_failed=yes ], |
| [pkg_failed=yes]) |
| else |
| pkg_failed=untried |
| fi[]dnl |
| ])dnl _PKG_CONFIG |
| |
| dnl _PKG_SHORT_ERRORS_SUPPORTED |
| dnl --------------------------- |
| dnl Internal check to see if pkg-config supports short errors. |
| AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], |
| [AC_REQUIRE([PKG_PROG_PKG_CONFIG]) |
| if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then |
| _pkg_short_errors_supported=yes |
| else |
| _pkg_short_errors_supported=no |
| fi[]dnl |
| ])dnl _PKG_SHORT_ERRORS_SUPPORTED |
| |
| |
| dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], |
| dnl [ACTION-IF-NOT-FOUND]) |
| dnl -------------------------------------------------------------- |
| dnl Since: 0.4.0 |
| dnl |
| dnl Note that if there is a possibility the first call to |
| dnl PKG_CHECK_MODULES might not happen, you should be sure to include an |
| dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac |
| AC_DEFUN([PKG_CHECK_MODULES], |
| [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl |
| AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl |
| |
| pkg_failed=no |
| AC_MSG_CHECKING([for $2]) |
| |
| _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) |
| _PKG_CONFIG([$1][_LIBS], [libs], [$2]) |
| |
| m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS |
| and $1[]_LIBS to avoid the need to call pkg-config. |
| See the pkg-config man page for more details.]) |
| |
| if test $pkg_failed = yes; then |
| AC_MSG_RESULT([no]) |
| _PKG_SHORT_ERRORS_SUPPORTED |
| if test $_pkg_short_errors_supported = yes; then |
| $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` |
| else |
| $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` |
| fi |
| # Put the nasty error message in config.log where it belongs |
| echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD |
| |
| m4_default([$4], [AC_MSG_ERROR( |
| [Package requirements ($2) were not met: |
| |
| $$1_PKG_ERRORS |
| |
| Consider adjusting the PKG_CONFIG_PATH environment variable if you |
| installed software in a non-standard prefix. |
| |
| _PKG_TEXT])[]dnl |
| ]) |
| elif test $pkg_failed = untried; then |
| AC_MSG_RESULT([no]) |
| m4_default([$4], [AC_MSG_FAILURE( |
| [The pkg-config script could not be found or is too old. Make sure it |
| is in your PATH or set the PKG_CONFIG environment variable to the full |
| path to pkg-config. |
| |
| _PKG_TEXT |
| |
| To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl |
| ]) |
| else |
| $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS |
| $1[]_LIBS=$pkg_cv_[]$1[]_LIBS |
| AC_MSG_RESULT([yes]) |
| $3 |
| fi[]dnl |
| ])dnl PKG_CHECK_MODULES |
| |
| |
| dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], |
| dnl [ACTION-IF-NOT-FOUND]) |
| dnl --------------------------------------------------------------------- |
| dnl Since: 0.29 |
| dnl |
| dnl Checks for existence of MODULES and gathers its build flags with |
| dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags |
| dnl and VARIABLE-PREFIX_LIBS from --libs. |
| dnl |
| dnl Note that if there is a possibility the first call to |
| dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to |
| dnl include an explicit call to PKG_PROG_PKG_CONFIG in your |
| dnl configure.ac. |
| AC_DEFUN([PKG_CHECK_MODULES_STATIC], |
| [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| _save_PKG_CONFIG=$PKG_CONFIG |
| PKG_CONFIG="$PKG_CONFIG --static" |
| PKG_CHECK_MODULES($@) |
| PKG_CONFIG=$_save_PKG_CONFIG[]dnl |
| ])dnl PKG_CHECK_MODULES_STATIC |
| |
| |
| dnl PKG_INSTALLDIR([DIRECTORY]) |
| dnl ------------------------- |
| dnl Since: 0.27 |
| dnl |
| dnl Substitutes the variable pkgconfigdir as the location where a module |
| dnl should install pkg-config .pc files. By default the directory is |
| dnl $libdir/pkgconfig, but the default can be changed by passing |
| dnl DIRECTORY. The user can override through the --with-pkgconfigdir |
| dnl parameter. |
| AC_DEFUN([PKG_INSTALLDIR], |
| [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) |
| m4_pushdef([pkg_description], |
| [pkg-config installation directory @<:@]pkg_default[@:>@]) |
| AC_ARG_WITH([pkgconfigdir], |
| [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, |
| [with_pkgconfigdir=]pkg_default) |
| AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) |
| m4_popdef([pkg_default]) |
| m4_popdef([pkg_description]) |
| ])dnl PKG_INSTALLDIR |
| |
| |
| dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) |
| dnl -------------------------------- |
| dnl Since: 0.27 |
| dnl |
| dnl Substitutes the variable noarch_pkgconfigdir as the location where a |
| dnl module should install arch-independent pkg-config .pc files. By |
| dnl default the directory is $datadir/pkgconfig, but the default can be |
| dnl changed by passing DIRECTORY. The user can override through the |
| dnl --with-noarch-pkgconfigdir parameter. |
| AC_DEFUN([PKG_NOARCH_INSTALLDIR], |
| [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) |
| m4_pushdef([pkg_description], |
| [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) |
| AC_ARG_WITH([noarch-pkgconfigdir], |
| [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, |
| [with_noarch_pkgconfigdir=]pkg_default) |
| AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) |
| m4_popdef([pkg_default]) |
| m4_popdef([pkg_description]) |
| ])dnl PKG_NOARCH_INSTALLDIR |
| |
| |
| dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, |
| dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) |
| dnl ------------------------------------------- |
| dnl Since: 0.28 |
| dnl |
| dnl Retrieves the value of the pkg-config variable for the given module. |
| AC_DEFUN([PKG_CHECK_VAR], |
| [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl |
| |
| _PKG_CONFIG([$1], [variable="][$3]["], [$2]) |
| AS_VAR_COPY([$1], [pkg_cv_][$1]) |
| |
| AS_VAR_IF([$1], [""], [$5], [$4])dnl |
| ])dnl PKG_CHECK_VAR |