[lttng-tools.git] / config / ax_check_class.m4

# ===========================================================================
#      http://www.gnu.org/software/autoconf-archive/ax_check_class.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_CHECK_CLASS
#
# DESCRIPTION
#
#   AX_CHECK_CLASS tests the existence of a given Java class, either in a
#   jar or in a '.class' file.
#
#   *Warning*: its success or failure can depend on a proper setting of the
#   CLASSPATH env. variable.
#
#   Note: This is part of the set of autoconf M4 macros for Java programs.
#   It is VERY IMPORTANT that you download the whole set, some macros depend
#   on other. Unfortunately, the autoconf archive does not support the
#   concept of set of macros, so I had to break it for submission. The
#   general documentation, as well as the sample configure.in, is included
#   in the AX_PROG_JAVA macro.
#
# LICENSE
#
#   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
#
#   This program is free software; you can redistribute it and/or modify it
#   under the terms of the GNU General Public License as published by the
#   Free Software Foundation; either version 2 of the License, or (at your
#   option) any later version.
#
#   This program is distributed in the hope that it will be useful, but
#   WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
#   Public License for more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program. If not, see <http://www.gnu.org/licenses/>.
#
#   As a special exception, the respective Autoconf Macro's copyright owner
#   gives unlimited permission to copy, distribute and modify the configure
#   scripts that are the output of Autoconf when processing the Macro. You
#   need not follow the terms of the GNU General Public License when using
#   or distributing such scripts, even though portions of the text of the
#   Macro appear in them. The GNU General Public License (GPL) does govern
#   all other use of the material that constitutes the Autoconf Macro.
#
#   This special exception to the GPL applies to versions of the Autoconf
#   Macro released by the Autoconf Archive. When you make and distribute a
#   modified version of the Autoconf Macro, you may extend this special
#   exception to the GPL to apply to your modified version as well.

#serial 7

AU_ALIAS([AC_CHECK_CLASS], [AX_CHECK_CLASS])
AC_DEFUN([AX_CHECK_CLASS],[
AC_REQUIRE([AX_PROG_JAVA])
ac_var_name=`echo $1 | sed 's/\./_/g'`
dnl Normaly I'd use a AC_CACHE_CHECK here but since the variable name is
dnl dynamic I need an extra level of extraction
AC_MSG_CHECKING([for $1 class])
AC_CACHE_VAL(ax_cv_class_$ac_var_name, [
if test x$ac_cv_prog_uudecode_base64 = xyes; then
dnl /**
dnl  * Test.java: used to test dynamicaly if a class exists.
dnl  */
dnl public class Test
dnl {
dnl
dnl public static void
dnl main( String[] argv )
dnl {
dnl     Class lib;
dnl     if (argv.length < 1)
dnl      {
dnl             System.err.println ("Missing argument");
dnl             System.exit (77);
dnl      }
dnl     try
dnl      {
dnl             lib = Class.forName (argv[0]);
dnl      }
dnl     catch (ClassNotFoundException e)
dnl      {
dnl             System.exit (1);
dnl      }
dnl     lib = null;
dnl     System.exit (0);
dnl }
dnl
dnl }
cat << \EOF > Test.uue
begin-base64 644 Test.class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====
EOF
                if $UUDECODE Test.uue; then
                        :
                else
                        echo "configure: __oline__: uudecode had trouble decoding base 64 file 'Test.uue'" >&AS_MESSAGE_LOG_FD
                        echo "configure: failed file was:" >&AS_MESSAGE_LOG_FD
                        cat Test.uue >&AS_MESSAGE_LOG_FD
                        ac_cv_prog_uudecode_base64=no
                fi
        rm -f Test.uue
        if AC_TRY_COMMAND($JAVA $JAVAFLAGS Test $1) >/dev/null 2>&1; then
                eval "ac_cv_class_$ac_var_name=yes"
        else
                eval "ac_cv_class_$ac_var_name=no"
        fi
        rm -f Test.class
else
        AX_TRY_COMPILE_JAVA([$1], , [eval "ac_cv_class_$ac_var_name=yes"],
                [eval "ac_cv_class_$ac_var_name=no"])
fi
eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
eval "HAVE_$ac_var_name=$`echo ac_cv_class_$ac_var_val`"
HAVE_LAST_CLASS=$ac_var_val
if test x$ac_var_val = xyes; then
        ifelse([$2], , :, [$2])
else
        ifelse([$3], , :, [$3])
fi
])
dnl for some reason the above statment didn't fall though here?
dnl do scripts have variable scoping?
eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
AC_MSG_RESULT($ac_var_val)
])
Commit	Line	Data
504d4ace DG	1	# ===========================================================================
	2	# http://www.gnu.org/software/autoconf-archive/ax_check_class.html
	3	# ===========================================================================
	4	#
	5	# SYNOPSIS
	6	#
	7	# AX_CHECK_CLASS
	8	#
	9	# DESCRIPTION
	10	#
	11	# AX_CHECK_CLASS tests the existence of a given Java class, either in a
	12	# jar or in a '.class' file.
	13	#
	14	# Warning: its success or failure can depend on a proper setting of the
	15	# CLASSPATH env. variable.
	16	#
	17	# Note: This is part of the set of autoconf M4 macros for Java programs.
	18	# It is VERY IMPORTANT that you download the whole set, some macros depend
	19	# on other. Unfortunately, the autoconf archive does not support the
	20	# concept of set of macros, so I had to break it for submission. The
	21	# general documentation, as well as the sample configure.in, is included
	22	# in the AX_PROG_JAVA macro.
	23	#
	24	# LICENSE
	25	#
	26	# Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
	27	#
	28	# This program is free software; you can redistribute it and/or modify it
	29	# under the terms of the GNU General Public License as published by the
	30	# Free Software Foundation; either version 2 of the License, or (at your
	31	# option) any later version.
	32	#
	33	# This program is distributed in the hope that it will be useful, but
	34	# WITHOUT ANY WARRANTY; without even the implied warranty of
	35	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
	36	# Public License for more details.
	37	#
	38	# You should have received a copy of the GNU General Public License along
	39	# with this program. If not, see <http://www.gnu.org/licenses/>.
	40	#
	41	# As a special exception, the respective Autoconf Macro's copyright owner
	42	# gives unlimited permission to copy, distribute and modify the configure
	43	# scripts that are the output of Autoconf when processing the Macro. You
	44	# need not follow the terms of the GNU General Public License when using
	45	# or distributing such scripts, even though portions of the text of the
	46	# Macro appear in them. The GNU General Public License (GPL) does govern
	47	# all other use of the material that constitutes the Autoconf Macro.
	48	#
	49	# This special exception to the GPL applies to versions of the Autoconf
	50	# Macro released by the Autoconf Archive. When you make and distribute a
	51	# modified version of the Autoconf Macro, you may extend this special
	52	# exception to the GPL to apply to your modified version as well.
	53
	54	#serial 7
	55
	56	AU_ALIAS([AC_CHECK_CLASS], [AX_CHECK_CLASS])
	57	AC_DEFUN([AX_CHECK_CLASS],[
	58	AC_REQUIRE([AX_PROG_JAVA])
	59	ac_var_name=`echo $1 \| sed 's/\./_/g'`
	60	dnl Normaly I'd use a AC_CACHE_CHECK here but since the variable name is
	61	dnl dynamic I need an extra level of extraction
	62	AC_MSG_CHECKING([for $1 class])
	63	AC_CACHE_VAL(ax_cv_class_$ac_var_name, [
	64	if test x$ac_cv_prog_uudecode_base64 = xyes; then
65	dnl /**
66	dnl * Test.java: used to test dynamicaly if a class exists.
67	dnl */
68	dnl public class Test
69	dnl {
70	dnl
71	dnl public static void
72	dnl main( String[] argv )
73	dnl {
74	dnl Class lib;
75	dnl if (argv.length < 1)
76	dnl {
77	dnl System.err.println ("Missing argument");
78	dnl System.exit (77);
79	dnl }
80	dnl try
81	dnl {
82	dnl lib = Class.forName (argv[0]);
83	dnl }
84	dnl catch (ClassNotFoundException e)
85	dnl {
86	dnl System.exit (1);
87	dnl }
88	dnl lib = null;
89	dnl System.exit (0);
90	dnl }
91	dnl
92	dnl }
93	cat << \EOF > Test.uue
94	begin-base64 644 Test.class
95	yv66vgADAC0AKQcAAgEABFRlc3QHAAQBABBqYXZhL2xhbmcvT2JqZWN0AQAE
96	bWFpbgEAFihbTGphdmEvbGFuZy9TdHJpbmc7KVYBAARDb2RlAQAPTGluZU51
97	bWJlclRhYmxlDAAKAAsBAANlcnIBABVMamF2YS9pby9QcmludFN0cmVhbTsJ
98	AA0ACQcADgEAEGphdmEvbGFuZy9TeXN0ZW0IABABABBNaXNzaW5nIGFyZ3Vt
99	ZW50DAASABMBAAdwcmludGxuAQAVKExqYXZhL2xhbmcvU3RyaW5nOylWCgAV
100	ABEHABYBABNqYXZhL2lvL1ByaW50U3RyZWFtDAAYABkBAARleGl0AQAEKEkp
101	VgoADQAXDAAcAB0BAAdmb3JOYW1lAQAlKExqYXZhL2xhbmcvU3RyaW5nOylM
102	amF2YS9sYW5nL0NsYXNzOwoAHwAbBwAgAQAPamF2YS9sYW5nL0NsYXNzBwAi
103	AQAgamF2YS9sYW5nL0NsYXNzTm90Rm91bmRFeGNlcHRpb24BAAY8aW5pdD4B
104	AAMoKVYMACMAJAoAAwAlAQAKU291cmNlRmlsZQEACVRlc3QuamF2YQAhAAEA
105	AwAAAAAAAgAJAAUABgABAAcAAABtAAMAAwAAACkqvgSiABCyAAwSD7YAFBBN
106	uAAaKgMyuAAeTKcACE0EuAAaAUwDuAAasQABABMAGgAdACEAAQAIAAAAKgAK
107	AAAACgAAAAsABgANAA4ADgATABAAEwASAB4AFgAiABgAJAAZACgAGgABACMA
108	JAABAAcAAAAhAAEAAQAAAAUqtwAmsQAAAAEACAAAAAoAAgAAAAQABAAEAAEA
109	JwAAAAIAKA==
110	====
111	EOF
112	if $UUDECODE Test.uue; then
113	:
114	else
115	echo "configure: __oline__: uudecode had trouble decoding base 64 file 'Test.uue'" >&AS_MESSAGE_LOG_FD
116	echo "configure: failed file was:" >&AS_MESSAGE_LOG_FD
117	cat Test.uue >&AS_MESSAGE_LOG_FD
118	ac_cv_prog_uudecode_base64=no
119	fi
120	rm -f Test.uue
121	if AC_TRY_COMMAND($JAVA $JAVAFLAGS Test $1) >/dev/null 2>&1; then
122	eval "ac_cv_class_$ac_var_name=yes"
123	else
124	eval "ac_cv_class_$ac_var_name=no"
125	fi
126	rm -f Test.class
127	else
128	AX_TRY_COMPILE_JAVA([$1], , [eval "ac_cv_class_$ac_var_name=yes"],
129	[eval "ac_cv_class_$ac_var_name=no"])
130	fi
131	eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
132	eval "HAVE_$ac_var_name=$`echo ac_cv_class_$ac_var_val`"
133	HAVE_LAST_CLASS=$ac_var_val
134	if test x$ac_var_val = xyes; then
135	ifelse([$2], , :, [$2])
136	else
137	ifelse([$3], , :, [$3])
138	fi
139	])
140	dnl for some reason the above statment didn't fall though here?
141	dnl do scripts have variable scoping?
142	eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
143	AC_MSG_RESULT($ac_var_val)
144	])