2017-09-27 01:37:54 +00:00
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# SYNOPSIS
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#
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# AX_PROG_JAVAC_VERSION
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#
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# DESCRIPTION
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#
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# Discover the version of the java compiler by invoking it with the -version
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# option and stripping off any leading "javac " word. Cache the result in
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# $ac_cv_prog_javac_version
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#
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# LICENSE
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#
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# Copyright (C) 2017 Flinders University
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# As a special exception, Flinders University gives unlimited permission to
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# copy, distribute and modify the configure scripts that are the output of
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# Autoconf when processing the Macro. You need not follow the terms of the
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# GNU General Public License when using or distributing such scripts, even
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# though portions of the text of the Macro appear in them. The GNU General
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# Public License (GPL) does govern all other use of the material that
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# constitutes the Autoconf Macro.
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#
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# This special exception to the GPL applies to versions of the Autoconf
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# Macro released by Flinders University. When you make and distribute a
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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#serial 1
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AU_ALIAS([AC_PROG_JAVAC_VERSION], [AX_PROG_JAVAC_VERSION])
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AC_DEFUN([AX_PROG_JAVAC_VERSION],[
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AC_REQUIRE([AC_PROG_SED])
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AC_CACHE_CHECK([Java compiler version],
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ax_cv_prog_javac_version,
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[ dnl
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dnl Many javac print their version number on standard output
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if AC_TRY_COMMAND([$JAVAC -version >java_version 2>&1]); then
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2017-10-05 05:13:24 +00:00
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ax_cv_prog_javac_version=`$SED -n 's/^javac //p' java_version`
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2017-09-27 01:37:54 +00:00
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else
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AC_MSG_ERROR([The Java compiler $JAVAC failed (see config.log)])
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ax_cv_prog_javac_version=""
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fi
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rm -f java_version
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])
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AC_PROVIDE([$0])dnl
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])
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