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a3fd683de3
* build-aux/gendocs.sh (version): * doc/gendocs_template: * doc/gendocs_template_min: * doc/gnulib.texi: * lib/version-etc.c (COPYRIGHT_YEAR): Update copyright dates by hand in templates and the like. * all files: Run 'make update-copyright'.
668 lines
32 KiB
Plaintext
668 lines
32 KiB
Plaintext
# javacomp.m4 serial 13
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dnl Copyright (C) 2001-2003, 2006-2007, 2009-2017 Free Software Foundation,
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dnl Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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# Prerequisites of javacomp.sh.
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# gt_JAVACOMP([source-version], [target-version])
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# Sets HAVE_JAVACOMP to nonempty if javacomp.sh will allow Java source code
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# according to source-version to be compiled to Java bytecode classes in the
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# target-version format.
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#
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# source-version can be: support for
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# 1.3 inner classes
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# 1.4 assert keyword
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# 1.5 generic classes and methods
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# 1.6 (not supported)
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# 1.7 switch(string)
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# 1.8 lambdas
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# Instead of source-version 1.6, use 1.5, since Java 6 did not introduce any
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# language changes. See
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# http://docs.oracle.com/javase/8/docs/technotes/guides/language/enhancements.html
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#
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# target-version can be: classfile version:
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# 1.1 45.3
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# 1.2 46.0
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# 1.3 47.0
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# 1.4 48.0
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# 1.5 49.0
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# 1.6 50.0
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# 1.7 51.0
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# 1.8 52.0
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# The classfile version of a .class file can be determined through the "file"
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# command. More portably, the classfile major version can be determined through
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# "od -A n -t d1 -j 7 -N 1 classfile".
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# target-version can also be omitted. In this case, the required target-version
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# is determined from the found JVM (see macro gt_JAVAEXEC):
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# target-version for JVM
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# 1.1 JDK 1.1, jview
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# 1.2 JDK/JRE 1.2
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# 1.3 JDK/JRE 1.3, gij 3.3, 3.4
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# 1.4 JDK/JRE 1.4, gij 4.0, 4.1
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# 1.5 JDK/JRE 1.5
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# 1.6 JDK/JRE 1.6
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# 1.7 JDK/JRE 1.7
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# 1.8 JDK/JRE 1.8
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# Note: gij >= 3.3 can in some cases handle classes compiled with -target 1.4,
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# and gij >= 4.1 can in some cases partially handle classes compiled with
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# -target 1.5, but I have no idea how complete this support is.
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#
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# Specifying target-version is useful when building a library (.jar) that is
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# useful outside the given package. Omitting target-version is useful when
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# building an application.
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#
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# It is unreasonable to ask for:
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# - target-version < 1.4 with source-version >= 1.4, or
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# - target-version < 1.5 with source-version >= 1.5, or
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# - target-version < 1.6 with source-version >= 1.6,
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# because even Sun's/Oracle's javac doesn't support these combinations.
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#
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# It is redundant to ask for a target-version > source-version, since the
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# smaller target-version = source-version will also always work and newer JVMs
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# support the older target-versions too. Except for the case
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# target-version = 1.4, source-version = 1.3, which allows gcj versions 3.0
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# to 3.2 to be used.
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AC_DEFUN([gt_JAVACOMP],
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[
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ifelse([$2], [], [AC_REQUIRE([gt_JAVAEXEC])], [])
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AC_EGREP_CPP([yes], [
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#if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
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yes
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#endif
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], CLASSPATH_SEPARATOR=';', CLASSPATH_SEPARATOR=':')
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source_version=$1
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test -n "$source_version" || {
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AC_MSG_ERROR([missing source-version argument to gt_@&t@JAVACOMP])
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}
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ifelse([$2], [],
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[if test -n "$HAVE_JAVAEXEC"; then
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dnl Use $CONF_JAVA to determine the JVM's version.
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changequote(,)dnl
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cat > conftestver.java <<EOF
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public class conftestver {
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public static void main (String[] args) {
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System.out.println(System.getProperty("java.specification.version"));
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}
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}
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EOF
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changequote([,])dnl
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dnl A precompiled version of conftestver.java, compiled with
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dnl "javac -target 1.1". This avoids having to compile conftestver.java
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dnl during each test for a suitable Java compiler.
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dnl For the conversion from binary to this ASCII encapsulation, avoiding
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dnl to assume the presence of uudecode, use the command
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dnl $ od -A n -t o1 < conftestver.class | tr ' ' '\012'| sort | uniq | sed -e '/^$/d' -e 's,^,\\,' | tr -d '\012'
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dnl and the long tr command in opposite direction.
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dnl Finally move the position corresponding to \055 to the last position,
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dnl to work around a coreutils-5.x bug.
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echo 'yzwx!$!I!D,!)!3+!4!5*!6,!4!7,!8!9)!:)!;"!(MeienN"!$FGW"!%Ojab"!2QeibRohZblVYZgb"!%hYei"!9FXQfYpYKgYidKUnleidLGW"!,Ujol_bPegb"!3_jicnbmnpblJfYpY/!*!+)!</!=!>"!=fYpYJmkb_ece_YnejiJpblmeji/!?!@)!A/!B!C"!._jicnbmnpbl"!3fYpYKgYidKSZfb_n"!3fYpYKgYidKUqmnbh"!$jon"!8QfYpYKejKTleinUnlbYhL"!.dbnTljkblnq"!EFQfYpYKgYidKUnleidLGQfYpYKgYidKUnleidL"!6fYpYKejKTleinUnlbYh"!)kleingi"!8FQfYpYKgYidKUnleidLGW!D!(!)!!!!!#!"!*!+!"!,!!!@!"!"!!!&Hu!"r!!!"!.!!!(!"!!!"!+!/!0!"!,!!!F!#!"!!!/s!#5$v!%t!&r!!!"!.!!!,!#!!!$!.!%!"!1!!!#!2' \
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| tr -d '\012\015' \
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| tr '!"#$%&()*+,./0123456789:;<=>?@ABCDEFGHJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyzI' '\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\046\050\051\052\056\057\073\074\076\103\106\114\116\117\120\123\124\126\133\141\142\143\144\145\146\147\151\152\154\155\156\157\160\162\163\164\165\166\171\261\262\266\267\270\272\276\312\376\055' \
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> conftestver.class
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target_version=`{
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unset JAVA_HOME
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echo "$as_me:__oline__: CLASSPATH=.${CLASSPATH:+$CLASSPATH_SEPARATOR$CLASSPATH} $CONF_JAVA conftestver" >&AS_MESSAGE_LOG_FD
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CLASSPATH=.${CLASSPATH:+$CLASSPATH_SEPARATOR$CLASSPATH} $CONF_JAVA conftestver 2>&AS_MESSAGE_LOG_FD
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}`
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case "$target_version" in
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1.1 | 1.2 | 1.3 | 1.4 | 1.5 | 1.6 | 1.7 | 1.8) ;;
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null)
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dnl JDK 1.1.X returns null.
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target_version=1.1 ;;
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*) AC_MSG_WARN([unknown target-version $target_version, please update gt_@&t@JAVACOMP macro])
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target_version=1.1 ;;
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esac
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else
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target_version="1.1"
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fi
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],
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[target_version=$2])
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case "$source_version" in
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1.3) goodcode='class conftest {}'
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failcode='class conftestfail { static { assert(true); } }' ;;
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1.4) goodcode='class conftest { static { assert(true); } }'
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failcode='class conftestfail<T> { T foo() { return null; } }' ;;
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1.5) goodcode='class conftest<T> { T foo() { return null; } }'
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failcode='class conftestfail { void foo () { switch ("A") {} } }' ;;
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1.7) goodcode='class conftest { void foo () { switch ("A") {} } }'
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failcode='class conftestfail { void foo () { Runnable r = () -> {}; } }' ;;
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1.8) goodcode='class conftest { void foo () { Runnable r = () -> {}; } }'
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failcode='class conftestfail syntax error' ;;
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*) AC_MSG_ERROR([invalid source-version argument to gt_@&t@JAVACOMP: $source_version]) ;;
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esac
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case "$target_version" in
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1.1) cfversion=45 ;;
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1.2) cfversion=46 ;;
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1.3) cfversion=47 ;;
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1.4) cfversion=48 ;;
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1.5) cfversion=49 ;;
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1.6) cfversion=50 ;;
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1.7) cfversion=51 ;;
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1.8) cfversion=52 ;;
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*) AC_MSG_ERROR([invalid target-version argument to gt_@&t@JAVACOMP: $target_version]) ;;
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esac
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# Function to output the classfile version of a file (8th byte) in decimal.
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if od -A x < /dev/null >/dev/null 2>/dev/null; then
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# Use POSIX od.
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func_classfile_version ()
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{
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od -A n -t d1 -j 7 -N 1 "[$]1"
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}
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else
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# Use BSD hexdump.
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func_classfile_version ()
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{
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dd if="[$]1" bs=1 count=1 skip=7 2>/dev/null | hexdump -e '1/1 "%3d "'
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echo
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}
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fi
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AC_MSG_CHECKING([for Java compiler])
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dnl
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dnl The support of GNU gcj for target-version and source-version:
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dnl
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dnl gcj 3.0.4 to 4.2 does not have a way to specify the target-version.
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dnl It always assumes target-version=1.4 but labels the class files as 1.1.
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dnl One consequence of this is that gcj compiles GetURL.java to invalid
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dnl bytecode, which crashes with a VerifyError when executed by Sun Java
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dnl 1.3.1. The bug is registered as java/7066, see
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dnl http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7066
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dnl gcj 4.3 and newer has an option -ftarget=1.X.
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dnl
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dnl For gcj < 3.3, the source-version always is 1.3.
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dnl For 3.3 <= gcj < 4.3, the source-version defaults to 1.4; option
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dnl "-fno-assert" switches to source-version 1.3.
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dnl gcj >= 4.3 has an option -fsource=1.X.
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dnl
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dnl The support of Sun/Oracle javac for target-version and source-version:
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dnl
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dnl javac 1.3: -target 1.1 1.2 1.3 default: 1.1
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dnl source always: 1.3
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dnl
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dnl javac 1.4: -target 1.1 1.2 1.3 1.4 default: 1.2
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dnl -source 1.3 1.4 default: 1.3
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dnl -target 1.1/1.2/1.3 only possible with -source 1.3 or no -source
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dnl
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dnl javac 1.5: -target 1.1 1.2 1.3 1.4 1.5 default: 1.5
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dnl -source 1.3 1.4 1.5 default: 1.5
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dnl -target 1.1/1.2/1.3 only possible with -source 1.3
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dnl -target 1.4 only possible with -source 1.3/1.4
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dnl
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dnl javac 1.6: -target 1.1 1.2 1.3 1.4 1.5 1.6 default: 1.6
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dnl -source 1.3 1.4 1.5 1.6 default: 1.5
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dnl -target 1.1/1.2/1.3 only possible with -source 1.3
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dnl -target 1.4 only possible with -source 1.3/1.4
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dnl -target 1.5 only possible with -source 1.3/1.4/1.5 or no -source
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dnl
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dnl javac 1.7: -target 1.1 1.2 1.3 1.4 1.5 1.6 1.7 default: 1.7
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dnl -source 1.3 1.4 1.5 1.6 1.7 default: 1.7
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dnl -target 1.1/1.2/1.3 only possible with -source 1.3
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dnl -target 1.4 only possible with -source 1.3/1.4
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dnl -target 1.5 only possible with -source 1.3/1.4/1.5
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dnl -target 1.6 only possible with -source 1.3/1.4/1.5/1.6
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dnl
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dnl javac 1.8: -target 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 default: 1.8
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dnl -source [1.3 1.4 1.5] 1.6 1.7 1.8 default: 1.8
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dnl -target 1.1/1.2/1.3 only possible with -source 1.3
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dnl -target 1.4 only possible with -source 1.3/1.4
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dnl -target 1.5 only possible with -source 1.3/1.4/1.5
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dnl -target 1.6 only possible with -source 1.3/1.4/1.5/1.6
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dnl -target 1.7 only possible with -source 1.3/1.4/1.5/1.6/1.7
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dnl
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dnl The support of jikes for target-version and source-version:
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dnl
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dnl jikes 1.14 does not have a way to specify the target-version. It
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dnl always assumes target-version=1.1.
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dnl
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dnl For jikes 1.14, the source-version always is 1.3.
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dnl
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CONF_JAVAC=
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HAVE_JAVAC_ENVVAR=
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HAVE_GCJ_C=
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HAVE_JAVAC=
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HAVE_JIKES=
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HAVE_JAVACOMP=
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changequote(,)dnl
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cat > conftestlib.java <<EOF
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public class conftestlib {
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public static void main (String[] args) {
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}
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}
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EOF
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changequote([,])dnl
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echo "$goodcode" > conftest.java
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echo "$failcode" > conftestfail.java
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dnl If the user has set the JAVAC environment variable, use that, if it
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dnl satisfies the constraints (possibly after adding -target and -source
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dnl options).
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if test -n "$JAVAC"; then
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dnl Try the original $JAVAC.
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if $JAVAC --version 2>/dev/null | sed -e 1q | grep gcj > /dev/null; then
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dnl It's a version of gcj.
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changequote(,)dnl
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if $JAVAC --version 2>/dev/null | sed -e 's,^[^0-9]*,,' -e 1q | sed -e '/^4\.[012]/d' | grep '^[4-9]' >/dev/null; then
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changequote([,])dnl
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dnl It's a version of gcj >= 4.3. Assume the classfile versions are correct.
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dnl Try $JAVAC.
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rm -f conftest.class
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if { echo "$as_me:__oline__: $JAVAC -d . conftest.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
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} \
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&& test -f conftest.class \
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&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
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dnl Try adding -fsource option if it is useful.
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rm -f conftest.class
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rm -f conftestfail.class
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if { echo "$as_me:__oline__: $JAVAC -fsource=$source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -fsource="$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
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} \
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&& test -f conftest.class \
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&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
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&& { echo "$as_me:__oline__: $JAVAC -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
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} \
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&& test -f conftestfail.class \
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&& ! { echo "$as_me:__oline__: $JAVAC -fsource=$source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -fsource="$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
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}; then
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CONF_JAVAC="$JAVAC -fsource=$source_version"
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HAVE_JAVAC_ENVVAR=1
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HAVE_JAVACOMP=1
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else
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CONF_JAVAC="$JAVAC"
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HAVE_JAVAC_ENVVAR=1
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HAVE_JAVACOMP=1
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fi
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else
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dnl Try with -fsource and -ftarget options.
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rm -f conftest.class
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rm -f conftestfail.class
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if { echo "$as_me:__oline__: $JAVAC -fsource=$source_version -ftarget=$target_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -fsource="$source_version" -ftarget="$target_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
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} \
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&& test -f conftest.class \
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&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
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CONF_JAVAC="$JAVAC -fsource=$source_version -ftarget=$target_version"
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HAVE_JAVAC_ENVVAR=1
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HAVE_JAVACOMP=1
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fi
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fi
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else
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dnl It's a version of gcj < 4.3. Ignore the version of conftest.class.
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if test "$target_version" = 1.4 && test "$source_version" = 1.4; then
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dnl Try $JAVAC.
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rm -f conftest.class
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if { echo "$as_me:__oline__: $JAVAC -d . conftest.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
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} \
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&& test -f conftest.class; then
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CONF_JAVAC="$JAVAC"
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HAVE_JAVAC_ENVVAR=1
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HAVE_JAVACOMP=1
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fi
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else
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if test "$target_version" = 1.4 && test "$source_version" = 1.3; then
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dnl Try $JAVAC and "$JAVAC -fno-assert". But add -fno-assert only if
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dnl it makes a difference. (It could already be part of $JAVAC.)
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javac_works=
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rm -f conftest.class
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if { echo "$as_me:__oline__: $JAVAC -d . conftest.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
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} \
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&& test -f conftest.class; then
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javac_works=1
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fi
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javac_noassert_works=
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rm -f conftest.class
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if { echo "$as_me:__oline__: $JAVAC -fno-assert -d . conftest.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -fno-assert -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
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} \
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&& test -f conftest.class; then
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javac_noassert_works=1
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fi
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if test -n "$javac_works" && test -n "$javac_noassert_works"; then
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rm -f conftestfail.class
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if { echo "$as_me:__oline__: $JAVAC -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
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} \
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&& test -f conftestfail.class \
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&& ! { echo "$as_me:__oline__: $JAVAC -fno-assert -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
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$JAVAC -fno-assert -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
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}; then
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dnl "$JAVAC -fno-assert" works better than $JAVAC.
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javac_works=
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fi
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fi
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if test -n "$javac_works"; then
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CONF_JAVAC="$JAVAC"
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HAVE_JAVAC_ENVVAR=1
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HAVE_JAVACOMP=1
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else
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if test -n "$javac_noassert_works"; then
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|
CONF_JAVAC="$JAVAC -fno-assert"
|
|
HAVE_JAVAC_ENVVAR=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
else
|
|
dnl It's not gcj. Assume the classfile versions are correct.
|
|
dnl Try $JAVAC.
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: $JAVAC -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
$JAVAC -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
|
|
dnl Try adding -source option if it is useful.
|
|
rm -f conftest.class
|
|
rm -f conftestfail.class
|
|
if { echo "$as_me:__oline__: $JAVAC -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
$JAVAC -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
|
|
&& { echo "$as_me:__oline__: $JAVAC -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
$JAVAC -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftestfail.class \
|
|
&& ! { echo "$as_me:__oline__: $JAVAC -source $source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
$JAVAC -source "$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
}; then
|
|
CONF_JAVAC="$JAVAC -source $source_version"
|
|
HAVE_JAVAC_ENVVAR=1
|
|
HAVE_JAVACOMP=1
|
|
else
|
|
CONF_JAVAC="$JAVAC"
|
|
HAVE_JAVAC_ENVVAR=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
else
|
|
dnl Try with -target option alone. (Sun javac 1.3.1 has the -target
|
|
dnl option but no -source option.)
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: $JAVAC -target $target_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
$JAVAC -target "$target_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
|
|
dnl Try adding -source option if it is useful.
|
|
rm -f conftest.class
|
|
rm -f conftestfail.class
|
|
if { echo "$as_me:__oline__: $JAVAC -target $target_version -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
$JAVAC -target "$target_version" -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
|
|
&& { echo "$as_me:__oline__: $JAVAC -target $target_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
$JAVAC -target "$target_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftestfail.class \
|
|
&& ! { echo "$as_me:__oline__: $JAVAC -target $target_version -source $source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
$JAVAC -target "$target_version" -source "$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
}; then
|
|
CONF_JAVAC="$JAVAC -target $target_version -source $source_version"
|
|
HAVE_JAVAC_ENVVAR=1
|
|
HAVE_JAVACOMP=1
|
|
else
|
|
CONF_JAVAC="$JAVAC -target $target_version"
|
|
HAVE_JAVAC_ENVVAR=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
else
|
|
dnl Maybe this -target option requires a -source option? Try with
|
|
dnl -target and -source options. (Supported by Sun javac 1.4 and
|
|
dnl higher.)
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: $JAVAC -target $target_version -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
$JAVAC -target "$target_version" -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
|
|
CONF_JAVAC="$JAVAC -target $target_version -source $source_version"
|
|
HAVE_JAVAC_ENVVAR=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
if test -z "$HAVE_JAVACOMP"; then
|
|
pushdef([AC_MSG_CHECKING],[:])dnl
|
|
pushdef([AC_CHECKING],[:])dnl
|
|
pushdef([AC_MSG_RESULT],[:])dnl
|
|
AC_CHECK_PROG([HAVE_GCJ_IN_PATH], [gcj], [yes])
|
|
AC_CHECK_PROG([HAVE_JAVAC_IN_PATH], [javac], [yes])
|
|
AC_CHECK_PROG([HAVE_JIKES_IN_PATH], [jikes], [yes])
|
|
popdef([AC_MSG_RESULT])dnl
|
|
popdef([AC_CHECKING])dnl
|
|
popdef([AC_MSG_CHECKING])dnl
|
|
if test -z "$HAVE_JAVACOMP" && test -n "$HAVE_GCJ_IN_PATH"; then
|
|
dnl Test for a good gcj version (>= 3.0).
|
|
changequote(,)dnl
|
|
if gcj --version 2>/dev/null | sed -e 's,^[^0-9]*,,' -e 1q | sed -e '/^3\.[01]/d' | grep '^[3-9]' >/dev/null; then
|
|
changequote([,])dnl
|
|
dnl See if libgcj.jar is well installed.
|
|
if { echo "$as_me:__oline__: gcj -C -d . conftestlib.java" >&AS_MESSAGE_LOG_FD
|
|
gcj -C -d . conftestlib.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
}; then
|
|
dnl OK, gcj works.
|
|
changequote(,)dnl
|
|
if gcj --version 2>/dev/null | sed -e 's,^[^0-9]*,,' -e 1q | sed -e '/^4\.[012]/d' | grep '^[4-9]' >/dev/null; then
|
|
changequote([,])dnl
|
|
dnl It's a version of gcj >= 4.3. Assume the classfile versions are correct.
|
|
dnl Try gcj.
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: gcj -C -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
gcj -C -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
|
|
dnl Try adding -fsource option if it is useful.
|
|
rm -f conftest.class
|
|
rm -f conftestfail.class
|
|
if { echo "$as_me:__oline__: gcj -C -fsource=$source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
gcj -C -fsource="$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
|
|
&& { echo "$as_me:__oline__: gcj -C -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
gcj -C -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftestfail.class \
|
|
&& ! { echo "$as_me:__oline__: gcj -C -fsource=$source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
gcj -C -fsource="$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
}; then
|
|
CONF_JAVAC="gcj -C -fsource=$source_version"
|
|
HAVE_JAVAC_ENVVAR=1
|
|
HAVE_JAVACOMP=1
|
|
else
|
|
CONF_JAVAC="gcj -C"
|
|
HAVE_JAVAC_ENVVAR=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
else
|
|
dnl Try with -fsource and -ftarget options.
|
|
rm -f conftest.class
|
|
rm -f conftestfail.class
|
|
if { echo "$as_me:__oline__: gcj -C -fsource=$source_version -ftarget=$target_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
gcj -C -fsource="$source_version" -ftarget="$target_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
|
|
CONF_JAVAC="gcj -C -fsource=$source_version -ftarget=$target_version"
|
|
HAVE_JAVAC_ENVVAR=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
fi
|
|
else
|
|
dnl It's a version of gcj < 4.3. Ignore the version of conftest.class.
|
|
dnl Now test whether it supports the desired target-version and
|
|
dnl source-version.
|
|
if test "$target_version" = 1.4 && test "$source_version" = 1.4; then
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: gcj -C -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
gcj -C -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class; then
|
|
CONF_JAVAC="gcj -C"
|
|
HAVE_GCJ_C=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
else
|
|
if test "$target_version" = 1.4 && test "$source_version" = 1.3; then
|
|
dnl Try gcj and "gcj -fno-assert". But add -fno-assert only if
|
|
dnl it works (not gcj < 3.3).
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: gcj -C -fno-assert -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
gcj -C -fno-assert -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class; then
|
|
CONF_JAVAC="gcj -C -fno-assert"
|
|
HAVE_GCJ_C=1
|
|
HAVE_JAVACOMP=1
|
|
else
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: gcj -C -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
gcj -C -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class; then
|
|
CONF_JAVAC="gcj -C"
|
|
HAVE_GCJ_C=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
if test -z "$HAVE_JAVACOMP" && test -n "$HAVE_JAVAC_IN_PATH"; then
|
|
dnl Test whether javac is usable.
|
|
if { javac -version >/dev/null 2>/dev/null || test $? -le 2; } \
|
|
&& ( if javac -help 2>&1 >/dev/null | grep at.dms.kjc.Main >/dev/null && javac -help 2>/dev/null | grep 'released.*2000' >/dev/null ; then exit 1; else exit 0; fi ); then
|
|
dnl OK, javac works.
|
|
dnl Now test whether it supports the desired target-version and
|
|
dnl source-version.
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: javac -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
javac -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
|
|
dnl Try adding -source option if it is useful.
|
|
rm -f conftest.class
|
|
rm -f conftestfail.class
|
|
if { echo "$as_me:__oline__: javac -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
javac -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
|
|
&& { echo "$as_me:__oline__: javac -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
javac -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftestfail.class \
|
|
&& ! { echo "$as_me:__oline__: javac -source $source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
javac -source "$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
}; then
|
|
CONF_JAVAC="javac -source $source_version"
|
|
HAVE_JAVAC=1
|
|
HAVE_JAVACOMP=1
|
|
else
|
|
CONF_JAVAC="javac"
|
|
HAVE_JAVAC=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
else
|
|
dnl Try with -target option alone. (Sun javac 1.3.1 has the -target
|
|
dnl option but no -source option.)
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: javac -target $target_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
javac -target "$target_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
|
|
dnl Try adding -source option if it is useful.
|
|
rm -f conftest.class
|
|
rm -f conftestfail.class
|
|
if { echo "$as_me:__oline__: javac -target $target_version -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
javac -target "$target_version" -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
|
|
&& { echo "$as_me:__oline__: javac -target $target_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
javac -target "$target_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftestfail.class \
|
|
&& ! { echo "$as_me:__oline__: javac -target $target_version -source $source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
|
|
javac -target "$target_version" -source "$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
}; then
|
|
CONF_JAVAC="javac -target $target_version -source $source_version"
|
|
HAVE_JAVAC=1
|
|
HAVE_JAVACOMP=1
|
|
else
|
|
CONF_JAVAC="javac -target $target_version"
|
|
HAVE_JAVAC=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
else
|
|
dnl Maybe this -target option requires a -source option? Try with
|
|
dnl -target and -source options. (Supported by Sun javac 1.4 and
|
|
dnl higher.)
|
|
rm -f conftest.class
|
|
if { echo "$as_me:__oline__: javac -target $target_version -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
|
|
javac -target "$target_version" -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
} \
|
|
&& test -f conftest.class \
|
|
&& expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
|
|
CONF_JAVAC="javac -target $target_version -source $source_version"
|
|
HAVE_JAVAC=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
if test -z "$HAVE_JAVACOMP" && test -n "$HAVE_JIKES_IN_PATH"; then
|
|
dnl Test whether jikes is usable.
|
|
if { jikes >/dev/null 2>/dev/null || test $? = 1; } \
|
|
&& (
|
|
# See if the existing CLASSPATH is sufficient to make jikes work.
|
|
unset JAVA_HOME
|
|
jikes conftestlib.java >&AS_MESSAGE_LOG_FD 2>&1
|
|
error=$?
|
|
rm -f conftestlib.class
|
|
exit $error
|
|
); then
|
|
dnl OK, jikes works.
|
|
dnl Now test whether it supports the desired target-version and
|
|
dnl source-version.
|
|
if test "$source_version" = 1.3; then
|
|
CONF_JAVAC="jikes"
|
|
HAVE_JIKES=1
|
|
HAVE_JAVACOMP=1
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f conftest*.java conftest*.class
|
|
if test -n "$HAVE_JAVACOMP"; then
|
|
ac_result="$CONF_JAVAC"
|
|
else
|
|
ac_result="no"
|
|
fi
|
|
AC_MSG_RESULT([$ac_result])
|
|
AC_SUBST([CONF_JAVAC])
|
|
AC_SUBST([CLASSPATH])
|
|
AC_SUBST([CLASSPATH_SEPARATOR])
|
|
AC_SUBST([HAVE_JAVAC_ENVVAR])
|
|
AC_SUBST([HAVE_GCJ_C])
|
|
AC_SUBST([HAVE_JAVAC])
|
|
AC_SUBST([HAVE_JIKES])
|
|
])
|