hdf5/m4/ax_check_class.m4
2019-04-04 12:59:43 -05:00

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# ===========================================================================
# https://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 <https://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 12
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 Normally 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, [
AX_TRY_COMPILE_JAVA([$1], , [eval "ac_cv_class_$ac_var_name=yes"],
[eval "ac_cv_class_$ac_var_name=no"])
eval "ac_var_val=$`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], , :, [$3])
fi
])
dnl for some reason the above statement didn't fall though here?
dnl do scripts have variable scoping?
eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
AC_MSG_RESULT($ac_var_val)
])