88 lines
3.2 KiB
Plaintext
88 lines
3.2 KiB
Plaintext
##### http://autoconf-archive.cryp.to/dps_java_check_class.html
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#
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# SYNOPSIS
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#
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# DPS_JAVA_CHECK_CLASS(<class>,<action-if-found>,<action-if-not-found>)
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#
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# DESCRIPTION
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#
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# Test if a Java class is available. Based on AC_PROG_JAVAC_WORKS.
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# This version uses a cache variable which is both compiler, options
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# and classpath dependent (so if you switch from javac to gcj it
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# correctly notices and redoes the test).
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#
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# The macro tries to compile a minimal program importing <class>.
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# Some newer compilers moan about the failure to use this but fail or
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# produce a class file anyway. All moaing is sunk to /dev/null since
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# I only wanted to know if the class could be imported. This is a
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# recommended followup to DPS_CHECK_JAVA_PLUGIN with classpath
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# appropriately adjusted.
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#
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# LAST MODIFICATION
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#
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# 2008-01-28
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#
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# COPYLEFT
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#
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# Copyright (c) 2008 Duncan Simpson <dps@simpson.demon.co.uk>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of the
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# License, or (at your 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
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# General 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
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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#
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# As a special exception, the respective Autoconf Macro's copyright
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# owner gives unlimited permission to copy, distribute and modify the
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# configure scripts that are the output of Autoconf when processing
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# the Macro. You need not follow the terms of the GNU General Public
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# License when using or distributing such scripts, even though
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# 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
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# Autoconf Macro released by the Autoconf Macro Archive. When you
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# make and distribute a modified version of the Autoconf Macro, you
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# may extend this special exception to the GPL to apply to your
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# modified version as well.
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AC_DEFUN([DPS_JAVA_CHECK_CLASS],[
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m4_define([cache_val],[m4_translit(dps_cv_have_java_class_$1, " ." ,"__")])
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if test "x$CLASSPATH" != "x"; then
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xtra=" with classpath ${CLASSPATH}"
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xopts=`echo ${CLASSPATH} | ${SED} 's/^ *://'`
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xopts="-classpath $xopts"
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else xtra=""; xopts=""; fi
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cache_var="cache_val"AS_TR_SH([_Jc_${JAVAC}_Cp_${CLASSPATH}])
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AC_CACHE_CHECK([if the $1 class is available$xtra], [$cache_var], [
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JAVA_TEST=Testing.java
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CLASS_TEST=Testing.class
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cat << \EOF > $JAVA_TEST
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/* [#]xline __oline__ "configure" */
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import $1;
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public class Testing {
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}
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EOF
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if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $xopts $JAVA_TEST) >/dev/null 2>&1; then
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eval "${cache_var}=yes"
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else
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eval "${cache_var}=no"
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echo "configure: failed program was:" >&AC_FD_CC
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cat $JAVA_TEST >&AC_FD_CC
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fi
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rm -f $JAVA_TEST $CLASS_TEST
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])
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if eval 'test "x$'${cache_var}'" = "xyes"'; then
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$2
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true; else
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$3
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false; fi])
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