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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_prog_java_cc.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PROG_JAVA_CC
#
# DESCRIPTION
#
# Finds the appropriate java compiler on your path. By preference the java
# compiler is gcj, then jikes then javac.
#
# The macro can take one argument specifying a space separated list of
# java compiler names.
#
# For example:
#
# AX_PROG_JAVA_CC(javac, gcj)
#
# The macro also sets the compiler options variable: JAVA_CC_OPTS to
# something sensible:
#
# - for GCJ it sets it to: @GCJ_OPTS@
# (if GCJ_OPTS is not yet defined then it is set to "-C")
#
# - no other compiler has applicable options yet
#
# Here's an example configure.in:
#
# AC_INIT(Makefile.in)
# AX_PROG_JAVA_CC()
# AC_OUTPUT(Makefile)
# dnl End.
#
# And here's the start of the Makefile.in:
#
# PROJECT_ROOT := @srcdir@
# # Tool definitions.
# JAVAC := @JAVA_CC@
# JAVAC_OPTS := @JAVA_CC_OPTS@
# JAR_TOOL := @jar_tool@
#
# LICENSE
#
# Copyright (c) 2008 Nic Ferrier <nferrier@tapsellferrier.co.uk>
#
# 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 4
# AX_PROG_JAVA_CC([COMPILER ...])
# --------------------------
# COMPILER ... is a space separated list of java compilers to search for.
# This just gives the user an opportunity to specify an alternative
# search list for the java compiler.
AU_ALIAS([AC_PROG_JAVA_CC], [AX_PROG_JAVA_CC])
AC_DEFUN([AX_PROG_JAVA_CC],
[AC_ARG_VAR([JAVA_CC], [java compiler command])dnl
AC_ARG_VAR([JAVA_CC_FLAGS], [java compiler flags])dnl
m4_ifval([$1],
[AC_CHECK_TOOLS(JAVA_CC, [$1])],
[AC_CHECK_TOOL(JAVA_CC, gcj)
if test -z "$JAVA_CC"; then
AC_CHECK_TOOL(JAVA_CC, javac)
fi
if test -z "$JAVA_CC"; then
AC_CHECK_TOOL(JAVA_CC, jikes)
fi
])
if test "$JAVA_CC" = "gcj"; then
if test "$GCJ_OPTS" = ""; then
AC_SUBST(GCJ_OPTS,-C)
fi
AC_SUBST(JAVA_CC_OPTS, @GCJ_OPTS@,
[Define the compilation options for GCJ])
fi
test -z "$JAVA_CC" && AC_MSG_ERROR([no acceptable java compiler found in \$PATH])
])# AX_PROG_JAVA_CC
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