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| # generated automatically by aclocal 1.16.2 -*- Autoconf -*- | |
| # Copyright (C) 1996-2020 Free Software Foundation, Inc. | |
| # This file is free software; the Free Software Foundation | |
| # gives unlimited permission to copy and/or distribute it, | |
| # with or without modifications, as long as this notice is preserved. | |
| # This program is distributed in the hope that it will be useful, | |
| # but WITHOUT ANY WARRANTY, to the extent permitted by law; without | |
| # even the implied warranty of MERCHANTABILITY or FITNESS FOR A | |
| # PARTICULAR PURPOSE. | |
| m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) | |
| # =========================================================================== | |
| # https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html | |
| # =========================================================================== | |
| # | |
| # SYNOPSIS | |
| # | |
| # AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) | |
| # | |
| # DESCRIPTION | |
| # | |
| # Check whether the given FLAG works with the current language's compiler | |
| # or gives an error. (Warnings, however, are ignored) | |
| # | |
| # ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on | |
| # success/failure. | |
| # | |
| # If EXTRA-FLAGS is defined, it is added to the current language's default | |
| # flags (e.g. CFLAGS) when the check is done. The check is thus made with | |
| # the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to | |
| # force the compiler to issue an error when a bad flag is given. | |
| # | |
| # INPUT gives an alternative input source to AC_COMPILE_IFELSE. | |
| # | |
| # NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this | |
| # macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG. | |
| # | |
| # LICENSE | |
| # | |
| # Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> | |
| # Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> | |
| # | |
| # Copying and distribution of this file, with or without modification, are | |
| # permitted in any medium without royalty provided the copyright notice | |
| # and this notice are preserved. This file is offered as-is, without any | |
| # warranty. | |
| #serial 6 | |
| AC_DEFUN([AX_CHECK_COMPILE_FLAG], | |
| [AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF | |
| AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl | |
| AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ | |
| ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS | |
| _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" | |
| AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], | |
| [AS_VAR_SET(CACHEVAR,[yes])], | |
| [AS_VAR_SET(CACHEVAR,[no])]) | |
| _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) | |
| AS_VAR_IF(CACHEVAR,yes, | |
| [m4_default([$2], :)], | |
| [m4_default([$3], :)]) | |
| AS_VAR_POPDEF([CACHEVAR])dnl | |
| ])dnl AX_CHECK_COMPILE_FLAGS | |
| # 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 | |
| m4_include([m4/ax_c_float_words_bigendian.m4]) | |
| m4_include([m4/ax_check_openssl.m4]) |