[thirdparty/gcc.git] / libjava / classpath / m4 / ac_prog_javac.m4

dnl @synopsis AC_PROG_JAVAC
dnl
dnl AC_PROG_JAVAC tests an existing Java compiler. It uses the
dnl environment variable JAVAC then tests in sequence various common
dnl Java compilers. For political reasons, it starts with the free
dnl ones.
dnl
dnl If you want to force a specific compiler:
dnl
dnl - at the configure.ac level, set JAVAC=yourcompiler before calling
dnl AC_PROG_JAVAC
dnl
dnl - at the configure level, setenv JAVAC
dnl
dnl You can use the JAVAC variable in your Makefile.in, with @JAVAC@.
dnl
dnl *Warning*: its success or failure can depend on a proper setting of
dnl the CLASSPATH env. variable.
dnl
dnl TODO: allow to exclude compilers (rationale: most Java programs
dnl cannot compile with some compilers like guavac).
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java
dnl programs. It is VERY IMPORTANT that you download the whole set,
dnl some macros depend on other. Unfortunately, the autoconf archive
dnl does not support the concept of set of macros, so I had to break it
dnl for submission. The general documentation, as well as the sample
dnl configure.ac, is included in the AC_PROG_JAVA macro.
dnl
dnl @category Java
dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
dnl @version 2000-07-19
dnl @license GPLWithACException
dnl
dnl Modified to remove jikes by Andrew John Hughes on 2008-02-11

AC_DEFUN_ONCE([AC_PROG_JAVAC],[
AC_REQUIRE([AC_EXEEXT])dnl
ECJ_OPTS="-warn:-deprecation,serial,unusedImport,unusedPrivate,resource"
JAVAC_OPTS="-Xlint:unchecked,cast,divzero,empty,finally,overrides"
GCJ_OPTS="-g"
if test "x$JAVAPREFIX" = x; then
        test "x$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")
else
        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", $JAVAPREFIX)
fi
test "x$JAVAC" = x && AC_MSG_ERROR([no acceptable Java compiler found in \$PATH])
AC_CACHE_CHECK([if $JAVAC is a version of gcj], ac_cv_prog_javac_is_gcj, [
if $JAVAC --version 2>&1 | grep gcj >&AS_MESSAGE_LOG_FD ; then
  ac_cv_prog_javac_is_gcj=yes;
  JAVAC="$JAVAC $GCJ_OPTS";
else
  ac_cv_prog_javac_is_gcj=no;
fi
])
AC_SUBST(JAVAC_IS_GCJ, $ac_cv_prog_javac_is_gcj)
AM_CONDITIONAL(GCJ_JAVAC, test x"${JAVAC_IS_GCJ}" = xyes)
dnl END GCJ LOCAL
AC_PROVIDE([$0])dnl
])
Commit	Line	Data
e0441a5b MK	1	dnl @synopsis AC_PROG_JAVAC
	2	dnl
	3	dnl AC_PROG_JAVAC tests an existing Java compiler. It uses the
	4	dnl environment variable JAVAC then tests in sequence various common
	5	dnl Java compilers. For political reasons, it starts with the free
	6	dnl ones.
	7	dnl
	8	dnl If you want to force a specific compiler:
	9	dnl
6b1786aa	10	dnl - at the configure.ac level, set JAVAC=yourcompiler before calling
e0441a5b MK	11	dnl AC_PROG_JAVAC
	12	dnl
	13	dnl - at the configure level, setenv JAVAC
	14	dnl
	15	dnl You can use the JAVAC variable in your Makefile.in, with @JAVAC@.
	16	dnl
	17	dnl Warning: its success or failure can depend on a proper setting of
	18	dnl the CLASSPATH env. variable.
	19	dnl
	20	dnl TODO: allow to exclude compilers (rationale: most Java programs
	21	dnl cannot compile with some compilers like guavac).
	22	dnl
	23	dnl Note: This is part of the set of autoconf M4 macros for Java
	24	dnl programs. It is VERY IMPORTANT that you download the whole set,
	25	dnl some macros depend on other. Unfortunately, the autoconf archive
	26	dnl does not support the concept of set of macros, so I had to break it
	27	dnl for submission. The general documentation, as well as the sample
6b1786aa	28	dnl configure.ac, is included in the AC_PROG_JAVA macro.
e0441a5b MK	29	dnl
	30	dnl @category Java
	31	dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
	32	dnl @version 2000-07-19
	33	dnl @license GPLWithACException
	34	dnl
	35	dnl Modified to remove jikes by Andrew John Hughes on 2008-02-11
	36
729530c0	37	AC_DEFUN_ONCE([AC_PROG_JAVAC],[
e0441a5b	38	AC_REQUIRE([AC_EXEEXT])dnl
a1906e8b	39	ECJ_OPTS="-warn:-deprecation,serial,unusedImport,unusedPrivate,resource"
cd6d4007 MK	40	JAVAC_OPTS="-Xlint:unchecked,cast,divzero,empty,finally,overrides"
cd6d4007 MK	41	GCJ_OPTS="-g"
e0441a5b	42	if test "x$JAVAPREFIX" = x; then
cd6d4007	43	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")
e0441a5b	44	else
cd6d4007	45	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", $JAVAPREFIX)
e0441a5b MK	46	fi
e0441a5b MK	47	test "x$JAVAC" = x && AC_MSG_ERROR([no acceptable Java compiler found in \$PATH])
cd6d4007	48	AC_CACHE_CHECK([if $JAVAC is a version of gcj], ac_cv_prog_javac_is_gcj, [
729530c0	49	if $JAVAC --version 2>&1 \| grep gcj >&AS_MESSAGE_LOG_FD ; then
cd6d4007 MK	50	ac_cv_prog_javac_is_gcj=yes;
cd6d4007 MK	51	JAVAC="$JAVAC $GCJ_OPTS";
729530c0 AJH	52	else
	53	ac_cv_prog_javac_is_gcj=no;
	54	fi
	55	])
cd6d4007 MK	56	AC_SUBST(JAVAC_IS_GCJ, $ac_cv_prog_javac_is_gcj)
cd6d4007 MK	57	AM_CONDITIONAL(GCJ_JAVAC, test x"${JAVAC_IS_GCJ}" = xyes)
e0441a5b MK	58	dnl END GCJ LOCAL
	59	AC_PROVIDE([$0])dnl
	60	])