Test: Add the new log4j agent
[lttng-tools.git] / config / ax_prog_javac.m4
1 # ===========================================================================
2 # http://www.gnu.org/software/autoconf-archive/ax_prog_javac.html
3 # ===========================================================================
4 #
5 # SYNOPSIS
6 #
7 # AX_PROG_JAVAC
8 #
9 # DESCRIPTION
10 #
11 # AX_PROG_JAVAC tests an existing Java compiler. It uses the environment
12 # variable JAVAC then tests in sequence various common Java compilers. For
13 # political reasons, it starts with the free ones.
14 #
15 # If you want to force a specific compiler:
16 #
17 # - at the configure.in level, set JAVAC=yourcompiler before calling
18 # AX_PROG_JAVAC
19 #
20 # - at the configure level, setenv JAVAC
21 #
22 # You can use the JAVAC variable in your Makefile.in, with @JAVAC@.
23 #
24 # *Warning*: its success or failure can depend on a proper setting of the
25 # CLASSPATH env. variable.
26 #
27 # TODO: allow to exclude compilers (rationale: most Java programs cannot
28 # compile with some compilers like guavac).
29 #
30 # Note: This is part of the set of autoconf M4 macros for Java programs.
31 # It is VERY IMPORTANT that you download the whole set, some macros depend
32 # on other. Unfortunately, the autoconf archive does not support the
33 # concept of set of macros, so I had to break it for submission. The
34 # general documentation, as well as the sample configure.in, is included
35 # in the AX_PROG_JAVA macro.
36 #
37 # LICENSE
38 #
39 # Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
40 #
41 # This program is free software; you can redistribute it and/or modify it
42 # under the terms of the GNU General Public License as published by the
43 # Free Software Foundation; either version 2 of the License, or (at your
44 # option) any later version.
45 #
46 # This program is distributed in the hope that it will be useful, but
47 # WITHOUT ANY WARRANTY; without even the implied warranty of
48 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
49 # Public License for more details.
50 #
51 # You should have received a copy of the GNU General Public License along
52 # with this program. If not, see <http://www.gnu.org/licenses/>.
53 #
54 # As a special exception, the respective Autoconf Macro's copyright owner
55 # gives unlimited permission to copy, distribute and modify the configure
56 # scripts that are the output of Autoconf when processing the Macro. You
57 # need not follow the terms of the GNU General Public License when using
58 # or distributing such scripts, even though portions of the text of the
59 # Macro appear in them. The GNU General Public License (GPL) does govern
60 # all other use of the material that constitutes the Autoconf Macro.
61 #
62 # This special exception to the GPL applies to versions of the Autoconf
63 # Macro released by the Autoconf Archive. When you make and distribute a
64 # modified version of the Autoconf Macro, you may extend this special
65 # exception to the GPL to apply to your modified version as well.
66
67 #serial 7
68
69 AU_ALIAS([AC_PROG_JAVAC], [AX_PROG_JAVAC])
70 AC_DEFUN([AX_PROG_JAVAC],[
71 m4_define([m4_ax_prog_javac_list],["gcj -C" guavac jikes javac])dnl
72 AS_IF([test "x$JAVAPREFIX" = x],
73 [test "x$JAVAC" = x && AC_CHECK_PROGS([JAVAC], [m4_ax_prog_javac_list])],
74 [test "x$JAVAC" = x && AC_CHECK_PROGS([JAVAC], [m4_ax_prog_javac_list], [], [$JAVAPREFIX/bin])])
75 m4_undefine([m4_ax_prog_javac_list])dnl
76 test "x$JAVAC" = x && AC_MSG_ERROR([no acceptable Java compiler found in \$PATH])
77 AX_PROG_JAVAC_WORKS
78 AC_PROVIDE([$0])dnl
79 ])
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