2012-03-27 23:13:14 +00:00
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dnl @synopsis AC_PROG_JAVAC
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dnl
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dnl AC_PROG_JAVAC tests an existing Java compiler. It uses the
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dnl environment variable JAVAC then tests in sequence various common
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dnl Java compilers. For political reasons, it starts with the free
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dnl ones.
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dnl
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dnl If you want to force a specific compiler:
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dnl
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dnl - at the configure.in level, set JAVAC=yourcompiler before calling
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dnl AC_PROG_JAVAC
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dnl
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dnl - at the configure level, setenv JAVAC
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dnl
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dnl You can use the JAVAC variable in your Makefile.in, with @JAVAC@.
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dnl
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dnl *Warning*: its success or failure can depend on a proper setting of
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dnl the CLASSPATH env. variable.
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dnl
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dnl TODO: allow to exclude compilers (rationale: most Java programs
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dnl cannot compile with some compilers like guavac).
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dnl
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dnl Note: This is part of the set of autoconf M4 macros for Java
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dnl programs. It is VERY IMPORTANT that you download the whole set,
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dnl some macros depend on other. Unfortunately, the autoconf archive
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dnl does not support the concept of set of macros, so I had to break it
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dnl for submission. The general documentation, as well as the sample
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dnl configure.in, is included in the AC_PROG_JAVA macro.
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dnl
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dnl @category Java
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dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
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dnl @version 2000-07-19
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dnl @license GPLWithACException
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dnl
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dnl Modified to remove jikes by Andrew John Hughes on 2008-02-11
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AC_DEFUN_ONCE([AC_PROG_JAVAC],[
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AC_REQUIRE([AC_EXEEXT])dnl
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2014-09-21 17:33:12 +00:00
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ECJ_OPTS="-warn:-deprecation,serial,unusedImport,unusedPrivate,resource"
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2012-03-27 23:13:14 +00:00
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JAVAC_OPTS="-Xlint:unchecked,cast,divzero,empty,finally,overrides"
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GCJ_OPTS="-g"
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if test "x$JAVAPREFIX" = x; then
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test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, ["ecj$EXEEXT $ECJ_OPTS"] ["ecj-3.3$EXEEXT $ECJ_OPTS"] ["ecj-3.2$EXEEXT $ECJ_OPTS"] ["javac$EXEEXT $JAVAC_OPTS"] "gcj$EXEEXT -C")
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else
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test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, ["ecj$EXEEXT $ECJ_OPTS"] ["ecj-3.3$EXEEXT $ECJ_OPTS"] ["ecj-3.2$EXEEXT $ECJ_OPTS"] ["javac$EXEEXT $JAVAC_OPTS"] "gcj$EXEEXT -C", $JAVAPREFIX)
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fi
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test "x$JAVAC" = x && AC_MSG_ERROR([no acceptable Java compiler found in \$PATH])
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AC_CACHE_CHECK([if $JAVAC is a version of gcj], ac_cv_prog_javac_is_gcj, [
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if $JAVAC --version 2>&1 | grep gcj >&AS_MESSAGE_LOG_FD ; then
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ac_cv_prog_javac_is_gcj=yes;
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JAVAC="$JAVAC $GCJ_OPTS";
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else
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ac_cv_prog_javac_is_gcj=no;
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fi
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])
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AC_SUBST(JAVAC_IS_GCJ, $ac_cv_prog_javac_is_gcj)
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AM_CONDITIONAL(GCJ_JAVAC, test x"${JAVAC_IS_GCJ}" = xyes)
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dnl END GCJ LOCAL
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AC_PROVIDE([$0])dnl
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])
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