2016-02-29 10:43:00 +08:00
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# ===========================================================================
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2019-04-05 01:59:43 +08:00
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# https://www.gnu.org/software/autoconf-archive/ax_prog_java_cc.html
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2016-02-29 10:43:00 +08:00
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_PROG_JAVA_CC
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#
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# DESCRIPTION
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#
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# Finds the appropriate java compiler on your path. By preference the java
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# compiler is gcj, then jikes then javac.
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#
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# The macro can take one argument specifying a space separated list of
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# java compiler names.
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#
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# For example:
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#
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# AX_PROG_JAVA_CC(javac, gcj)
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#
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# The macro also sets the compiler options variable: JAVA_CC_OPTS to
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# something sensible:
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#
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# - for GCJ it sets it to: @GCJ_OPTS@
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# (if GCJ_OPTS is not yet defined then it is set to "-C")
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#
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# - no other compiler has applicable options yet
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#
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# Here's an example configure.in:
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#
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# AC_INIT(Makefile.in)
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# AX_PROG_JAVA_CC()
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# AC_OUTPUT(Makefile)
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# dnl End.
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#
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# And here's the start of the Makefile.in:
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#
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# PROJECT_ROOT := @srcdir@
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# # Tool definitions.
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# JAVAC := @JAVA_CC@
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# JAVAC_OPTS := @JAVA_CC_OPTS@
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# JAR_TOOL := @jar_tool@
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#
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# LICENSE
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#
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# Copyright (c) 2008 Nic Ferrier <nferrier@tapsellferrier.co.uk>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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2019-04-05 01:59:43 +08:00
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# with this program. If not, see <https://www.gnu.org/licenses/>.
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2016-02-29 10:43:00 +08:00
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#
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# As a special exception, the respective Autoconf Macro's copyright owner
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# gives unlimited permission to copy, distribute and modify the configure
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# scripts that are the output of Autoconf when processing the Macro. You
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# need not follow the terms of the GNU General Public License when using
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# or distributing such scripts, even though portions of the text of the
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# Macro appear in them. The GNU General Public License (GPL) does govern
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# all other use of the material that constitutes the Autoconf Macro.
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#
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# This special exception to the GPL applies to versions of the Autoconf
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# Macro released by the Autoconf Archive. When you make and distribute a
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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2019-04-05 01:59:43 +08:00
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#serial 5
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2016-02-29 10:43:00 +08:00
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# AX_PROG_JAVA_CC([COMPILER ...])
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# --------------------------
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# COMPILER ... is a space separated list of java compilers to search for.
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# This just gives the user an opportunity to specify an alternative
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# search list for the java compiler.
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AU_ALIAS([AC_PROG_JAVA_CC], [AX_PROG_JAVA_CC])
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AC_DEFUN([AX_PROG_JAVA_CC],
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[AC_ARG_VAR([JAVA_CC], [java compiler command])dnl
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AC_ARG_VAR([JAVA_CC_FLAGS], [java compiler flags])dnl
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m4_ifval([$1],
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[AC_CHECK_TOOLS(JAVA_CC, [$1])],
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[AC_CHECK_TOOL(JAVA_CC, gcj)
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if test -z "$JAVA_CC"; then
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AC_CHECK_TOOL(JAVA_CC, javac)
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fi
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if test -z "$JAVA_CC"; then
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AC_CHECK_TOOL(JAVA_CC, jikes)
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fi
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])
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if test "$JAVA_CC" = "gcj"; then
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if test "$GCJ_OPTS" = ""; then
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AC_SUBST(GCJ_OPTS,-C)
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fi
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AC_SUBST(JAVA_CC_OPTS, @GCJ_OPTS@,
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[Define the compilation options for GCJ])
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fi
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test -z "$JAVA_CC" && AC_MSG_ERROR([no acceptable java compiler found in \$PATH])
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])# AX_PROG_JAVA_CC
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