Build: add Flex version check
[lttng-tools.git] / config / ax_prog_jar.m4
1 # ===========================================================================
2 # http://www.gnu.org/software/autoconf-archive/ax_prog_jar.html
3 # ===========================================================================
4 #
5 # SYNOPSIS
6 #
7 # AX_PROG_JAR
8 #
9 # DESCRIPTION
10 #
11 # AX_PROG_JAR tests for an existing jar program. It uses the environment
12 # variable JAR then tests in sequence various common jar programs.
13 #
14 # If you want to force a specific compiler:
15 #
16 # - at the configure.in level, set JAR=yourcompiler before calling
17 # AX_PROG_JAR
18 #
19 # - at the configure level, setenv JAR
20 #
21 # You can use the JAR variable in your Makefile.in, with @JAR@.
22 #
23 # Note: This macro depends on the autoconf M4 macros for Java programs. It
24 # is VERY IMPORTANT that you download that whole set, some macros depend
25 # on other. Unfortunately, the autoconf archive does not support the
26 # concept of set of macros, so I had to break it for submission.
27 #
28 # The general documentation of those macros, as well as the sample
29 # configure.in, is included in the AX_PROG_JAVA macro.
30 #
31 # LICENSE
32 #
33 # Copyright (c) 2008 Egon Willighagen <e.willighagen@science.ru.nl>
34 #
35 # Copying and distribution of this file, with or without modification, are
36 # permitted in any medium without royalty provided the copyright notice
37 # and this notice are preserved. This file is offered as-is, without any
38 # warranty.
39
40 #serial 7
41
42 AU_ALIAS([AC_PROG_JAR], [AX_PROG_JAR])
43 AC_DEFUN([AX_PROG_JAR],[
44 AS_IF([test "x$JAVAPREFIX" = x],
45 [test "x$JAR" = x && AC_CHECK_PROGS([JAR], [jar])],
46 [test "x$JAR" = x && AC_CHECK_PROGS([JAR], [jar], [], [$JAVAPREFIX/bin])])
47 test "x$JAR" = x && AC_MSG_ERROR([no acceptable jar program found in \$PATH])
48 AC_PROVIDE([$0])dnl
49 ])
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