extra_pkg.m4
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上传日期:2022-01-05
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- # extra_pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
- #
- # Copyright (c) 2004 Scott James Remnant <scott@netsplit.com>.
- #
- # This program is free software; you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation; either version 2 of the License, or
- # (at your option) any later version.
- #
- # This program is distributed in the hope that it will be useful, but
- # WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- # General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- #
- # As a special exception to the GNU General Public License, if you
- # distribute this file as part of a program that contains a
- # configuration script generated by Autoconf, you may include it under
- # the same distribution terms that you use for the rest of that program.
- # --------------------------------------------------------------
- # PKG_CHECK_MOD_VERSION(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
- # [ACTION-IF-NOT-FOUND])
- #
- # This is a very slight modification to the macro PKG_CHECK_MODULES that
- # is in the original pkg.m4 file. It prints the versions in the checking
- # message (erikd@mega-nerd.com).
- AC_DEFUN([PKG_CHECK_MOD_VERSION],
- [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
- _PKG_SHORT_ERRORS_SUPPORTED
- if test $_pkg_short_errors_supported = yes; then
- $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"`
- else
- $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
- fi
- # Put the nasty error message in config.log where it belongs
- echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
- ifelse([$4], , [AC_MSG_ERROR(dnl
- [Package requirements ($2) were not met:
- $$1_PKG_ERRORS
- Consider adjusting the PKG_CONFIG_PATH environment variable if you
- installed software in a non-standard prefix.
- _PKG_TEXT
- ])],
- [AC_MSG_RESULT([no])
- $4])
- elif test $pkg_failed = untried; then
- ifelse([$4], , [AC_MSG_FAILURE(dnl
- [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/>.])],
- [$4])
- else
- $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
- $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
- AC_MSG_RESULT([yes])
- ifelse([$3], , :, [$3])
- fi[]dnl
- ])# PKG_CHECK_MOD_VERSION