common/autoconf/toolchain.m4

Thu, 05 Apr 2018 07:59:52 -0700

author
kevinw
date
Thu, 05 Apr 2018 07:59:52 -0700
changeset 2206
7ba4e17574e0
parent 2204
0e87966d7ff1
child 2207
ddf2d8bf87c0
permissions
-rw-r--r--

8034788: Rewrite toolchain.m4 to support multiple toolchains per platform.
Reviewed-by: ihse, henryjen, erikj

     1 #
     2 # Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
     3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4 #
     5 # This code is free software; you can redistribute it and/or modify it
     6 # under the terms of the GNU General Public License version 2 only, as
     7 # published by the Free Software Foundation.  Oracle designates this
     8 # particular file as subject to the "Classpath" exception as provided
     9 # by Oracle in the LICENSE file that accompanied this code.
    10 #
    11 # This code is distributed in the hope that it will be useful, but WITHOUT
    12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14 # version 2 for more details (a copy is included in the LICENSE file that
    15 # accompanied this code).
    16 #
    17 # You should have received a copy of the GNU General Public License version
    18 # 2 along with this work; if not, write to the Free Software Foundation,
    19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20 #
    21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22 # or visit www.oracle.com if you need additional information or have any
    23 # questions.
    24 #
    26 ########################################################################
    27 # This file is responsible for detecting, verifying and setting up the 
    28 # toolchain, i.e. the compiler, linker and related utilities. It will setup 
    29 # proper paths to the binaries, but it will not setup any flags.
    30 #
    31 # The binaries used is determined by the toolchain type, which is the family of 
    32 # compilers and related tools that are used.
    33 ########################################################################
    36 # All valid toolchains, regardless of platform (used by help.m4)
    37 VALID_TOOLCHAINS_all="gcc clang solstudio xlc microsoft"
    39 # These toolchains are valid on different platforms
    40 VALID_TOOLCHAINS_linux="gcc clang"
    41 VALID_TOOLCHAINS_solaris="solstudio"
    42 VALID_TOOLCHAINS_macosx="gcc clang"
    43 VALID_TOOLCHAINS_aix="xlc"
    44 VALID_TOOLCHAINS_windows="microsoft"
    46 # Toolchain descriptions
    47 TOOLCHAIN_DESCRIPTION_clang="clang/LLVM"
    48 TOOLCHAIN_DESCRIPTION_gcc="GNU Compiler Collection"
    49 TOOLCHAIN_DESCRIPTION_microsoft="Microsoft Visual Studio"
    50 TOOLCHAIN_DESCRIPTION_solstudio="Oracle Solaris Studio"
    51 TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
    53 # Prepare the system so that TOOLCHAIN_CHECK_COMPILER_VERSION can be called.
    54 # Must have CC_VERSION_NUMBER and CXX_VERSION_NUMBER.
    55 # $1 - optional variable prefix for compiler and version variables (BUILD_)
    56 # $2 - optional variable prefix for comparable variable (OPENJDK_BUILD_)
    57 AC_DEFUN([TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS],
    58 [
    59   if test "x$CC_VERSION" != "x$CXX_VERSION"; then
    60     AC_MSG_WARN([C and C++ compiler has different version numbers, $CC_VERSION vs $CXX_VERSION.])
    61     AC_MSG_WARN([This typically indicates a broken setup, and is not supported])
    62   fi
    64   # We only check CC_VERSION since we assume CXX_VERSION is equal.
    65   if [ [[ "$CC_VERSION" =~ (.*\.){3} ]] ]; then
    66     AC_MSG_WARN([C compiler version number has more than three parts (X.Y.Z): $CC_VERSION. Comparisons might be wrong.])
    67   fi
    69   if [ [[  "$CC_VERSION" =~ [0-9]{6} ]] ]; then
    70     AC_MSG_WARN([C compiler version number has a part larger than 99999: $CC_VERSION. Comparisons might be wrong.])
    71   fi
    73   $2COMPARABLE_ACTUAL_VERSION=`$AWK -F. '{ printf("%05d%05d%05d\n", [$]1, [$]2, [$]3) }' <<< "$CC_VERSION"`
    74 ])
    76 # Check if the configured compiler (C and C++) is of a specific version or
    77 # newer. TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS must have been called before.
    78 #
    79 # Arguments:
    80 #   $1:   The version string to check against the found version
    81 #   $2:   block to run if the compiler is at least this version (>=)
    82 #   $3:   block to run if the compiler is older than this version (<)
    83 AC_DEFUN([TOOLCHAIN_CHECK_COMPILER_VERSION],
    84 [
    85   REFERENCE_VERSION=$1
    87   if [ [[ "$REFERENCE_VERSION" =~ (.*\.){3} ]] ]; then
    88     AC_MSG_ERROR([Internal error: Cannot compare to $REFERENCE_VERSION, only three parts (X.Y.Z) is supported])
    89   fi
    91   if [ [[ "$REFERENCE_VERSION" =~ [0-9]{6} ]] ]; then
    92     AC_MSG_ERROR([Internal error: Cannot compare to $REFERENCE_VERSION, only parts < 99999 is supported])
    93   fi
    95   # Version comparison method inspired by http://stackoverflow.com/a/24067243
    96   COMPARABLE_REFERENCE_VERSION=`$AWK -F. '{ printf("%05d%05d%05d\n", [$]1, [$]2, [$]3) }' <<< "$REFERENCE_VERSION"`
    98   if test $COMPARABLE_ACTUAL_VERSION -ge $COMPARABLE_REFERENCE_VERSION ; then
    99     m4_ifval([$2], [$2], [:])
   100   else
   101     m4_ifval([$3], [$3], [:])
   102   fi
   103 ])
   106 # Setup a number of variables describing how native output files are
   107 # named on this platform/toolchain.
   108 AC_DEFUN([TOOLCHAIN_SETUP_FILENAME_PATTERNS],
   109 [
   110   # Define filename patterns
   111   if test "x$OPENJDK_TARGET_OS" = xwindows; then
   112     LIBRARY_PREFIX=
   113     SHARED_LIBRARY_SUFFIX='.dll'
   114     STATIC_LIBRARY_SUFFIX='.lib'
   115     SHARED_LIBRARY='[$]1.dll'
   116     STATIC_LIBRARY='[$]1.lib'
   117     OBJ_SUFFIX='.obj'
   118     EXE_SUFFIX='.exe'
   119   else
   120     LIBRARY_PREFIX=lib
   121     SHARED_LIBRARY_SUFFIX='.so'
   122     STATIC_LIBRARY_SUFFIX='.a'
   123     SHARED_LIBRARY='lib[$]1.so'
   124     STATIC_LIBRARY='lib[$]1.a'
   125     OBJ_SUFFIX='.o'
   126     EXE_SUFFIX=''
   127     if test "x$OPENJDK_TARGET_OS" = xmacosx; then
   128       SHARED_LIBRARY='lib[$]1.dylib'
   129       SHARED_LIBRARY_SUFFIX='.dylib'
   130     fi
   131   fi
   133   AC_SUBST(LIBRARY_PREFIX)
   134   AC_SUBST(SHARED_LIBRARY_SUFFIX)
   135   AC_SUBST(STATIC_LIBRARY_SUFFIX)
   136   AC_SUBST(SHARED_LIBRARY)
   137   AC_SUBST(STATIC_LIBRARY)
   138   AC_SUBST(OBJ_SUFFIX)
   139   AC_SUBST(EXE_SUFFIX)  
   140 ])
   142 # Determine which toolchain type to use, and make sure it is valid for this
   143 # platform. Setup various information about the selected toolchain.
   144 AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
   145 [
   146   AC_ARG_WITH(toolchain-type, [AS_HELP_STRING([--with-toolchain-type],
   147       [the toolchain type (or family) to use, use '--help' to show possible values @<:@platform dependent@:>@])])
   149   # Use indirect variable referencing
   150   toolchain_var_name=VALID_TOOLCHAINS_$OPENJDK_BUILD_OS
   151   VALID_TOOLCHAINS=${!toolchain_var_name}
   152   # First toolchain type in the list is the default
   153   DEFAULT_TOOLCHAIN=${VALID_TOOLCHAINS%% *}
   155   if test "x$with_toolchain_type" = xlist; then
   156     # List all toolchains
   157     AC_MSG_NOTICE([The following toolchains are valid on this platform:])
   158     for toolchain in $VALID_TOOLCHAINS; do
   159       toolchain_var_name=TOOLCHAIN_DESCRIPTION_$toolchain
   160       TOOLCHAIN_DESCRIPTION=${!toolchain_var_name}
   161       $PRINTF "  %-10s  %s\n" $toolchain "$TOOLCHAIN_DESCRIPTION"
   162     done
   164     exit 0
   165   elif test "x$with_toolchain_type" != x; then
   166     # User override; check that it is valid
   167     if test "x${VALID_TOOLCHAINS/$with_toolchain_type/}" = "x${VALID_TOOLCHAINS}"; then
   168       AC_MSG_NOTICE([Toolchain type $with_toolchain_type is not valid on this platform.])
   169       AC_MSG_NOTICE([Valid toolchains: $VALID_TOOLCHAINS.])
   170       AC_MSG_ERROR([Cannot continue.])
   171     fi
   172     TOOLCHAIN_TYPE=$with_toolchain_type
   173   else
   174     # No flag given, use default
   175     TOOLCHAIN_TYPE=$DEFAULT_TOOLCHAIN
   176   fi
   177   AC_SUBST(TOOLCHAIN_TYPE)
   179   TOOLCHAIN_CC_BINARY_clang="clang"
   180   TOOLCHAIN_CC_BINARY_gcc="gcc"
   181   TOOLCHAIN_CC_BINARY_microsoft="cl"
   182   TOOLCHAIN_CC_BINARY_solstudio="cc"
   183   TOOLCHAIN_CC_BINARY_xlc="xlc_r"
   185   TOOLCHAIN_CXX_BINARY_clang="clang++"
   186   TOOLCHAIN_CXX_BINARY_gcc="g++"
   187   TOOLCHAIN_CXX_BINARY_microsoft="cl"
   188   TOOLCHAIN_CXX_BINARY_solstudio="CC"
   189   TOOLCHAIN_CXX_BINARY_xlc="xlC_r"
   191   # Use indirect variable referencing
   192   toolchain_var_name=TOOLCHAIN_DESCRIPTION_$TOOLCHAIN_TYPE
   193   TOOLCHAIN_DESCRIPTION=${!toolchain_var_name}
   194   toolchain_var_name=TOOLCHAIN_CC_BINARY_$TOOLCHAIN_TYPE
   195   TOOLCHAIN_CC_BINARY=${!toolchain_var_name}
   196   toolchain_var_name=TOOLCHAIN_CXX_BINARY_$TOOLCHAIN_TYPE
   197   TOOLCHAIN_CXX_BINARY=${!toolchain_var_name}
   199   TOOLCHAIN_SETUP_FILENAME_PATTERNS
   201   if test "x$TOOLCHAIN_TYPE" = "x$DEFAULT_TOOLCHAIN"; then
   202     AC_MSG_NOTICE([Using default toolchain $TOOLCHAIN_TYPE ($TOOLCHAIN_DESCRIPTION)])
   203   else
   204     AC_MSG_NOTICE([Using user selected toolchain $TOOLCHAIN_TYPE ($TOOLCHAIN_DESCRIPTION). Default toolchain is $DEFAULT_TOOLCHAIN.])
   205   fi 
   206 ])
   208 # Before we start detecting the toolchain executables, we might need some 
   209 # special setup, e.g. additional paths etc.
   210 AC_DEFUN_ONCE([TOOLCHAIN_PRE_DETECTION],
   211 [
   212   # FIXME: Is this needed?
   213   AC_LANG(C++)
   215   # Store the CFLAGS etal passed to the configure script.
   216   ORG_CFLAGS="$CFLAGS"
   217   ORG_CXXFLAGS="$CXXFLAGS"
   218   ORG_OBJCFLAGS="$OBJCFLAGS"
   220   # autoconf magic only relies on PATH, so update it if tools dir is specified
   221   OLD_PATH="$PATH"
   223   # Before we locate the compilers, we need to sanitize the Xcode build environment
   224   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
   225     # determine path to Xcode developer directory
   226     # can be empty in which case all the tools will rely on a sane Xcode 4 installation
   227     SET_DEVELOPER_DIR=
   229     if test -n "$XCODE_PATH"; then
   230       DEVELOPER_DIR="$XCODE_PATH"/Contents/Developer
   231     fi
   233     # DEVELOPER_DIR could also be provided directly
   234     AC_MSG_CHECKING([Determining if we need to set DEVELOPER_DIR])
   235     if test -n "$DEVELOPER_DIR"; then
   236       if test ! -d "$DEVELOPER_DIR"; then
   237         AC_MSG_ERROR([Xcode Developer path does not exist: $DEVELOPER_DIR, please provide a path to the Xcode 4 application bundle using --with-xcode-path])
   238       fi
   239       if test ! -f "$DEVELOPER_DIR"/usr/bin/xcodebuild; then
   240         AC_MSG_ERROR([Xcode Developer path is not valid: $DEVELOPER_DIR, it must point to Contents/Developer inside an Xcode application bundle])
   241       fi
   242       # make it visible to all the tools immediately
   243       export DEVELOPER_DIR
   244       SET_DEVELOPER_DIR="export DEVELOPER_DIR := $DEVELOPER_DIR"
   245       AC_MSG_RESULT([yes ($DEVELOPER_DIR)])
   246     else
   247       AC_MSG_RESULT([no])
   248     fi
   249     AC_SUBST(SET_DEVELOPER_DIR)
   251     AC_PATH_PROG(XCODEBUILD, xcodebuild)
   252     if test -z "$XCODEBUILD"; then
   253       AC_MSG_ERROR([The xcodebuild tool was not found, the Xcode command line tools are required to build on Mac OS X])
   254     fi
   256     # Fail-fast: verify we're building on Xcode 4, we cannot build with Xcode 5 or later
   257     XCODE_VERSION=`$XCODEBUILD -version | grep '^Xcode ' | sed 's/Xcode //'`
   258     XC_VERSION_PARTS=( ${XCODE_VERSION//./ } )
   259     if test ! "${XC_VERSION_PARTS[[0]]}" = "4"; then
   260       AC_MSG_ERROR([Xcode 4 is required to build JDK 8, the version found was $XCODE_VERSION. Use --with-xcode-path to specify the location of Xcode 4 or make Xcode 4 active by using xcode-select.])
   261     fi
   263     # Some versions of Xcode 5 command line tools install gcc and g++ as symlinks to
   264     # clang and clang++, which will break the build. So handle that here if we need to.
   265     if test -L "/usr/bin/gcc" -o -L "/usr/bin/g++"; then
   266       # use xcrun to find the real gcc and add it's directory to PATH
   267       # then autoconf magic will find it
   268       AC_MSG_NOTICE([Found gcc symlinks to clang in /usr/bin, adding path to real gcc to PATH])
   269       XCODE_BIN_PATH=$(dirname `xcrun -find gcc`)
   270       PATH="$XCODE_BIN_PATH":$PATH
   271     fi
   273     # Determine appropriate SDKPATH, don't use SDKROOT as it interferes with the stub tools
   274     AC_MSG_CHECKING([Determining Xcode SDK path])
   275     # allow SDKNAME to be set to override the default SDK selection
   276     SDKPATH=`"$XCODEBUILD" -sdk ${SDKNAME:-macosx} -version | grep '^Path: ' | sed 's/Path: //'`
   277     if test -n "$SDKPATH"; then
   278       AC_MSG_RESULT([$SDKPATH])
   279     else
   280       AC_MSG_RESULT([(none, will use system headers and frameworks)])
   281     fi
   282     AC_SUBST(SDKPATH)
   284     # Perform a basic sanity test
   285     if test ! -f "$SDKPATH/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h"; then
   286       AC_MSG_ERROR([Unable to find required framework headers, provide a valid path to Xcode 4 using --with-xcode-path])
   287     fi
   289     # if SDKPATH is non-empty then we need to add -isysroot and -iframework for gcc and g++
   290     if test -n "$SDKPATH"; then
   291       # We need -isysroot <path> and -iframework<path>/System/Library/Frameworks
   292       CFLAGS_JDK="${CFLAGS_JDK} -isysroot \"$SDKPATH\" -iframework\"$SDKPATH/System/Library/Frameworks\""
   293       CXXFLAGS_JDK="${CXXFLAGS_JDK} -isysroot \"$SDKPATH\" -iframework\"$SDKPATH/System/Library/Frameworks\""
   294       LDFLAGS_JDK="${LDFLAGS_JDK} -isysroot \"$SDKPATH\" -iframework\"$SDKPATH/System/Library/Frameworks\""
   295     fi
   297     # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework
   298     # setting this here means it doesn't have to be peppered throughout the forest
   299     CFLAGS_JDK="$CFLAGS_JDK -F\"$SDKPATH/System/Library/Frameworks/JavaVM.framework/Frameworks\""
   300     CXXFLAGS_JDK="$CXXFLAGS_JDK -F\"$SDKPATH/System/Library/Frameworks/JavaVM.framework/Frameworks\""
   301     LDFLAGS_JDK="$LDFLAGS_JDK -F\"$SDKPATH/System/Library/Frameworks/JavaVM.framework/Frameworks\""
   302   fi
   304   # For solaris we really need solaris tools, and not the GNU equivalent.
   305   # The build tools on Solaris reside in /usr/ccs (C Compilation System),
   306   # so add that to path before starting to probe.
   307   # FIXME: This was originally only done for AS,NM,GNM,STRIP,MCS,OBJCOPY,OBJDUMP.
   308   if test "x$OPENJDK_BUILD_OS" = xsolaris; then
   309     PATH="/usr/ccs/bin:$PATH"
   310   fi
   312   # On Windows, we need to detect the visual studio installation first.
   313   if test "x$OPENJDK_BUILD_OS" = "xwindows" && test "x$TOOLCHAIN_TYPE" = "xmicrosoft"; then
   314     TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV
   315   fi
   317   # Finally add TOOLS_DIR at the beginning, to allow --with-tools-dir to 
   318   # override all other locations.
   319   if test "x$TOOLS_DIR" != x; then
   320     PATH=$TOOLS_DIR:$PATH
   321   fi
   323   # If a devkit is found on the builddeps server, then prepend its path to the
   324   # PATH variable. If there are cross compilers available in the devkit, these
   325   # will be found by AC_PROG_CC et al.
   326   DEVKIT=
   327   BDEPS_CHECK_MODULE(DEVKIT, devkit, xxx,
   328       [
   329         # Found devkit
   330         PATH="$DEVKIT/bin:$PATH"
   331         SYS_ROOT="$DEVKIT/${rewritten_target}/sys-root"
   332         if test "x$x_includes" = "xNONE"; then
   333           x_includes="$SYS_ROOT/usr/include/X11"
   334         fi
   335         if test "x$x_libraries" = "xNONE"; then
   336           x_libraries="$SYS_ROOT/usr/lib"
   337         fi
   338       ],
   339       [])
   340 ])
   342 # Restore path, etc
   343 AC_DEFUN_ONCE([TOOLCHAIN_POST_DETECTION],
   344 [
   345   # Restore old path.
   346   PATH="$OLD_PATH"
   348   # Restore the flags to the user specified values.
   349   # This is necessary since AC_PROG_CC defaults CFLAGS to "-g -O2"
   350   CFLAGS="$ORG_CFLAGS"
   351   CXXFLAGS="$ORG_CXXFLAGS"
   352   OBJCFLAGS="$ORG_OBJCFLAGS"
   353 ])
   355 # Check if a compiler is of the toolchain type we expect, and save the version
   356 # information from it. If the compiler does not match the expected type,
   357 # this function will abort using AC_MSG_ERROR. If it matches, the version will
   358 # be stored in CC_VERSION_NUMBER/CXX_VERSION_NUMBER (as a dotted number), and
   359 # the full version string in CC_VERSION_STRING/CXX_VERSION_STRING.
   360 #
   361 # $1 = compiler to test (CC or CXX)
   362 # $2 = human readable name of compiler (C or C++)
   363 AC_DEFUN([TOOLCHAIN_EXTRACT_COMPILER_VERSION],
   364 [
   365   COMPILER=[$]$1
   366   COMPILER_NAME=$2
   368   if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
   369     # cc -V output typically looks like
   370     #     cc: Sun C 5.12 Linux_i386 2011/11/16
   371     COMPILER_VERSION_OUTPUT=`$COMPILER -V 2>&1`
   372     # Check that this is likely to be the Solaris Studio cc.
   373     $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "^.*: Sun $COMPILER_NAME" > /dev/null
   374     if test $? -ne 0; then
   375       ALT_VERSION_OUTPUT=`$COMPILER --version 2>&1`
   376       AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
   377       AC_MSG_NOTICE([The result from running with -V was: "$COMPILER_VERSION_OUTPUT"])
   378       AC_MSG_NOTICE([The result from running with --version was: "$ALT_VERSION_OUTPUT"])
   379       AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
   380     fi
   381     # Remove usage instructions (if present), and
   382     # collapse compiler output into a single line
   383     COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT | \
   384         $SED -e 's/ *@<:@Uu@:>@sage:.*//'`
   385     COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
   386         $SED -e "s/^.*@<:@ ,\t@:>@$COMPILER_NAME@<:@ ,\t@:>@\(@<:@1-9@:>@\.@<:@0-9@:>@@<:@0-9@:>@*\).*/\1/"`
   387   elif test  "x$TOOLCHAIN_TYPE" = xxlc; then
   388     # xlc -qversion output typically looks like
   389     #     IBM XL C/C++ for AIX, V11.1 (5724-X13)
   390     #     Version: 11.01.0000.0015
   391     COMPILER_VERSION_OUTPUT=`$COMPILER -qversion 2>&1`
   392     # Check that this is likely to be the IBM XL C compiler.
   393     $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "IBM XL C" > /dev/null
   394     if test $? -ne 0; then
   395       ALT_VERSION_OUTPUT=`$COMPILER --version 2>&1`
   396       AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
   397       AC_MSG_NOTICE([The result from running with -qversion was: "$COMPILER_VERSION_OUTPUT"])
   398       AC_MSG_NOTICE([The result from running with --version was: "$ALT_VERSION_OUTPUT"])
   399       AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
   400     fi
   401     # Collapse compiler output into a single line
   402     COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
   403     COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
   404         $SED -e 's/^.*, V\(@<:@1-9@:>@@<:@0-9.@:>@*\).*$/\1/'`
   405   elif test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
   406     # There is no specific version flag, but all output starts with a version string.
   407     # First line typically looks something like:
   408     # Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86
   409     COMPILER_VERSION_OUTPUT=`$COMPILER 2>&1 | $HEAD -n 1 | $TR -d '\r'`
   410     # Check that this is likely to be Microsoft CL.EXE.
   411     $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "Microsoft.*Compiler" > /dev/null
   412     if test $? -ne 0; then
   413       AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
   414       AC_MSG_NOTICE([The result from running it was: "$COMPILER_VERSION_OUTPUT"])
   415       AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
   416     fi
   417     # Collapse compiler output into a single line
   418     COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
   419     COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
   420         $SED -e 's/^.*ersion.\(@<:@1-9@:>@@<:@0-9.@:>@*\) .*$/\1/'`
   421   elif test  "x$TOOLCHAIN_TYPE" = xgcc; then
   422     # gcc --version output typically looks like
   423     #     gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
   424     #     Copyright (C) 2013 Free Software Foundation, Inc.
   425     #     This is free software; see the source for copying conditions.  There is NO
   426     #     warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   427     COMPILER_VERSION_OUTPUT=`$COMPILER --version 2>&1`
   428     # Check that this is likely to be GCC.
   429     $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "Free Software Foundation" > /dev/null
   430     if test $? -ne 0; then
   431       AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
   432       AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION"])
   433       AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
   434     fi
   435     # Remove Copyright and legalese from version string, and
   436     # collapse into a single line
   437     COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT | \
   438         $SED -e 's/ *Copyright .*//'`
   439     COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
   440         $SED -e 's/^.* \(@<:@1-9@:>@\.@<:@0-9.@:>@*\) .*$/\1/'`
   441   elif test  "x$TOOLCHAIN_TYPE" = xclang; then
   442     # clang --version output typically looks like
   443     #    Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
   444     #    clang version 3.3 (tags/RELEASE_33/final)
   445     # or
   446     #    Debian clang version 3.2-7ubuntu1 (tags/RELEASE_32/final) (based on LLVM 3.2)
   447     #    Target: x86_64-pc-linux-gnu
   448     #    Thread model: posix
   449     COMPILER_VERSION_OUTPUT=`$COMPILER --version 2>&1`
   450     # Check that this is likely to be clang
   451     $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "clang" > /dev/null
   452     if test $? -ne 0; then
   453       AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
   454       AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION_OUTPUT"])
   455       AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
   456     fi
   457     # Collapse compiler output into a single line
   458     COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
   459     COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
   460         $SED -e 's/^.*clang version \(@<:@1-9@:>@@<:@0-9.@:>@*\).*$/\1/'`
   462   else
   463       AC_MSG_ERROR([Unknown toolchain type $TOOLCHAIN_TYPE.])
   464   fi
   465   # This sets CC_VERSION_NUMBER or CXX_VERSION_NUMBER. (This comment is a grep marker)
   466   $1_VERSION_NUMBER="$COMPILER_VERSION_NUMBER"
   467   # This sets CC_VERSION_STRING or CXX_VERSION_STRING. (This comment is a grep marker)
   468   $1_VERSION_STRING="$COMPILER_VERSION_STRING"
   470   AC_MSG_NOTICE([Using $TOOLCHAIN_TYPE $COMPILER_NAME compiler version $COMPILER_VERSION_NUMBER @<:@$COMPILER_VERSION_STRING@:>@])
   471 ])
   474 # Try to locate the given C or C++ compiler in the path, or otherwise.
   475 #
   476 # $1 = compiler to test (CC or CXX)
   477 # $2 = human readable name of compiler (C or C++)
   478 # $3 = list of compiler names to search for
   479 AC_DEFUN([TOOLCHAIN_FIND_COMPILER],
   480 [
   481   COMPILER_NAME=$2
   482   SEARCH_LIST="$3"
   484   if test "x[$]$1" != x; then
   485     # User has supplied compiler name already, always let that override.
   486     AC_MSG_NOTICE([Will use user supplied compiler $1=[$]$1])
   487     if test "x`basename [$]$1`" = "x[$]$1"; then
   488       # A command without a complete path is provided, search $PATH.
   490       AC_PATH_PROGS(POTENTIAL_$1, [$]$1)
   491       if test "x$POTENTIAL_$1" != x; then
   492         $1=$POTENTIAL_$1
   493       else
   494         AC_MSG_ERROR([User supplied compiler $1=[$]$1 could not be found])
   495       fi
   496     else
   497       # Otherwise it might already be a complete path
   498       if test ! -x "[$]$1"; then
   499         AC_MSG_ERROR([User supplied compiler $1=[$]$1 does not exist])
   500       fi
   501     fi
   502   else
   503     # No user supplied value. Locate compiler ourselves.
   505     # If we are cross compiling, assume cross compilation tools follows the
   506     # cross compilation standard where they are prefixed with the autoconf
   507     # standard name for the target. For example the binary
   508     # i686-sun-solaris2.10-gcc will cross compile for i686-sun-solaris2.10.
   509     # If we are not cross compiling, then the default compiler name will be
   510     # used.
   512     $1=
   513     # If TOOLS_DIR is set, check for all compiler names in there first
   514     # before checking the rest of the PATH.
   515     # FIXME: Now that we prefix the TOOLS_DIR to the PATH in the PRE_DETECTION
   516     # step, this should not be necessary.
   517     if test -n "$TOOLS_DIR"; then
   518       PATH_save="$PATH"
   519       PATH="$TOOLS_DIR"
   520       AC_PATH_PROGS(TOOLS_DIR_$1, $3)
   521       $1=$TOOLS_DIR_$1
   522       PATH="$PATH_save"
   523     fi
   525     # AC_PATH_PROGS can't be run multiple times with the same variable,
   526     # so create a new name for this run.
   527     if test "x[$]$1" = x; then
   528       AC_PATH_PROGS(POTENTIAL_$1, $3)
   529       $1=$POTENTIAL_$1
   530     fi
   532     if test "x[$]$1" = x; then
   533       HELP_MSG_MISSING_DEPENDENCY([devkit])
   534       AC_MSG_ERROR([Could not find a $COMPILER_NAME compiler. $HELP_MSG])
   535     fi
   536   fi
   538   # Now we have a compiler binary in $1. Make sure it's okay.
   539   BASIC_FIXUP_EXECUTABLE($1)
   540   TEST_COMPILER="[$]$1"
   541   # Don't remove symbolic links on AIX because 'xlc_r' and 'xlC_r' may all be links
   542   # to 'xlc' but it is crucial that we invoke the compiler with the right name!
   543   if test "x$OPENJDK_BUILD_OS" != xaix; then
   544     # FIXME: This test should not be needed anymore; we don't do that for any platform.
   545     AC_MSG_CHECKING([resolved symbolic links for $1])
   546     BASIC_REMOVE_SYMBOLIC_LINKS(TEST_COMPILER)
   547     AC_MSG_RESULT([$TEST_COMPILER])
   548   fi
   549   AC_MSG_CHECKING([if $1 is disguised ccache])
   551   COMPILER_BASENAME=`$BASENAME "$TEST_COMPILER"`
   552   if test "x$COMPILER_BASENAME" = "xccache"; then
   553     AC_MSG_RESULT([yes, trying to find proper $COMPILER_NAME compiler])
   554     # We /usr/lib/ccache in the path, so cc is a symlink to /usr/bin/ccache.
   555     # We want to control ccache invocation ourselves, so ignore this cc and try
   556     # searching again.
   558     # Remove the path to the fake ccache cc from the PATH
   559     RETRY_COMPILER_SAVED_PATH="$PATH"
   560     COMPILER_DIRNAME=`$DIRNAME [$]$1`
   561     PATH="`$ECHO $PATH | $SED -e "s,$COMPILER_DIRNAME,,g" -e "s,::,:,g" -e "s,^:,,g"`"
   563     # Try again looking for our compiler
   564     AC_CHECK_TOOLS(PROPER_COMPILER_$1, $3)
   565     BASIC_FIXUP_EXECUTABLE(PROPER_COMPILER_$1)
   566     PATH="$RETRY_COMPILER_SAVED_PATH"
   568     AC_MSG_CHECKING([for resolved symbolic links for $1])
   569     BASIC_REMOVE_SYMBOLIC_LINKS(PROPER_COMPILER_$1)
   570     AC_MSG_RESULT([$PROPER_COMPILER_$1])
   571     $1="$PROPER_COMPILER_$1"
   572   else
   573     AC_MSG_RESULT([no, keeping $1])
   574     $1="$TEST_COMPILER"
   575   fi
   577   TOOLCHAIN_EXTRACT_COMPILER_VERSION([$1], [$COMPILER_NAME])
   578 ])
   580 # Detect the core components of the toolchain, i.e. the compilers (CC and CXX),
   581 # preprocessor (CPP and CXXCPP), the linker (LD), the assembler (AS) and the
   582 # archiver (AR). Verify that the compilers are correct according to the
   583 # toolchain type.
   584 AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
   585 [
   586   #
   587   # Setup the compilers (CC and CXX)
   588   #
   589   TOOLCHAIN_FIND_COMPILER([CC], [C], $TOOLCHAIN_CC_BINARY)
   590   # Now that we have resolved CC ourself, let autoconf have its go at it
   591   AC_PROG_CC([$CC])
   593   TOOLCHAIN_FIND_COMPILER([CXX], [C++], $TOOLCHAIN_CXX_BINARY)
   594   # Now that we have resolved CXX ourself, let autoconf have its go at it
   595   AC_PROG_CXX([$CXX])
   597   # This is the compiler version number on the form X.Y[.Z]
   598   AC_SUBST(CC_VERSION_NUMBER)
   599   AC_SUBST(CXX_VERSION_NUMBER)
   601   TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS
   603   #
   604   # Setup the preprocessor (CPP and CXXCPP)
   605   #
   606   AC_PROG_CPP
   607   BASIC_FIXUP_EXECUTABLE(CPP)
   608   AC_PROG_CXXCPP
   609   BASIC_FIXUP_EXECUTABLE(CXXCPP)
   611   #
   612   # Setup the linker (LD)
   613   #
   614   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
   615     # In the Microsoft toolchain we have a separate LD command "link".
   616     # Make sure we reject /usr/bin/link (as determined in CYGWIN_LINK), which is
   617     # a cygwin program for something completely different.
   618     AC_CHECK_PROG([LD], [link],[link],,, [$CYGWIN_LINK])
   619     BASIC_FIXUP_EXECUTABLE(LD)
   620     # Verify that we indeed succeeded with this trick.
   621     AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
   622     "$LD" --version > /dev/null
   623     if test $? -eq 0 ; then
   624       AC_MSG_RESULT([no])
   625       AC_MSG_ERROR([This is the Cygwin link tool. Please check your PATH and rerun configure.])
   626     else
   627       AC_MSG_RESULT([yes])
   628     fi
   629     LDCXX="$LD"
   630   else
   631     # All other toolchains use the compiler to link.
   632     LD="$CC"
   633     LDCXX="$CXX"
   634   fi
   635   AC_SUBST(LD)
   636   # FIXME: it should be CXXLD, according to standard (cf CXXCPP)
   637   AC_SUBST(LDCXX)
   639   #
   640   # Setup the assembler (AS)
   641   #
   642   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
   643     # FIXME: should this really be solaris, or solstudio?
   644     BASIC_PATH_PROGS(AS, as)
   645     BASIC_FIXUP_EXECUTABLE(AS)
   646   else
   647     # FIXME: is this correct for microsoft?
   648     AS="$CC -c"
   649   fi
   650   AC_SUBST(AS)
   652   #
   653   # Setup the archiver (AR)
   654   #
   655   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
   656     # The corresponding ar tool is lib.exe (used to create static libraries)
   657     AC_CHECK_PROG([AR], [lib],[lib],,,)
   658   else
   659     BASIC_CHECK_TOOLS(AR, ar)
   660   fi
   661   BASIC_FIXUP_EXECUTABLE(AR)
   662 ])
   664 # Setup additional tools that is considered a part of the toolchain, but not the
   665 # core part. Many of these are highly platform-specific and do not exist,
   666 # and/or are not needed on all platforms.
   667 AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_EXTRA],
   668 [
   669   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
   670     AC_PROG_OBJC
   671     BASIC_FIXUP_EXECUTABLE(OBJC)
   672     BASIC_PATH_PROGS(LIPO, lipo)
   673     BASIC_FIXUP_EXECUTABLE(LIPO)
   674   else
   675     OBJC=
   676   fi
   678   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
   679     AC_CHECK_PROG([MT], [mt], [mt],,, [/usr/bin/mt])
   680     BASIC_FIXUP_EXECUTABLE(MT)
   681     # Setup the resource compiler (RC)
   682     AC_CHECK_PROG([RC], [rc], [rc],,, [/usr/bin/rc])
   683     BASIC_FIXUP_EXECUTABLE(RC)
   684     AC_CHECK_PROG([DUMPBIN], [dumpbin], [dumpbin],,,)
   685     BASIC_FIXUP_EXECUTABLE(DUMPBIN)
   686   fi
   688   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
   689     BASIC_PATH_PROGS(STRIP, strip)
   690     BASIC_FIXUP_EXECUTABLE(STRIP)
   691     BASIC_PATH_PROGS(NM, nm)
   692     BASIC_FIXUP_EXECUTABLE(NM)
   693     BASIC_PATH_PROGS(GNM, gnm)
   694     BASIC_FIXUP_EXECUTABLE(GNM)
   696     BASIC_PATH_PROGS(MCS, mcs)
   697     BASIC_FIXUP_EXECUTABLE(MCS)
   698   elif test "x$OPENJDK_TARGET_OS" != xwindows; then
   699     # FIXME: we should unify this with the solaris case above.
   700     BASIC_CHECK_TOOLS(STRIP, strip)
   701     BASIC_FIXUP_EXECUTABLE(STRIP)
   702     AC_PATH_PROG(OTOOL, otool)
   703     if test "x$OTOOL" = "x"; then
   704       OTOOL="true"
   705     fi
   706     BASIC_CHECK_TOOLS(NM, nm)
   707     BASIC_FIXUP_EXECUTABLE(NM)
   708     GNM="$NM"
   709     AC_SUBST(GNM)
   710   fi
   712   # objcopy is used for moving debug symbols to separate files when
   713   # full debug symbols are enabled.
   714   if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xlinux; then
   715     BASIC_CHECK_TOOLS(OBJCOPY, [gobjcopy objcopy])
   716     # Only call fixup if objcopy was found.
   717     if test -n "$OBJCOPY"; then
   718       BASIC_FIXUP_EXECUTABLE(OBJCOPY)
   719     fi
   720   fi
   722   BASIC_CHECK_TOOLS(OBJDUMP, [gobjdump objdump])
   723   if test "x$OBJDUMP" != x; then
   724     # Only used for compare.sh; we can live without it. BASIC_FIXUP_EXECUTABLE
   725     # bails if argument is missing.
   726     BASIC_FIXUP_EXECUTABLE(OBJDUMP)
   727   fi
   728 ])
   730 # Setup the build tools (i.e, the compiler and linker used to build programs
   731 # that should be run on the build platform, not the target platform, as a build
   732 # helper). Since the non-cross-compile case uses the normal, target compilers
   733 # for this, we can only do this after these have been setup.
   734 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_BUILD_COMPILERS],
   735 [
   736   if test "x$COMPILE_TYPE" = "xcross"; then
   737     # Now we need to find a C/C++ compiler that can build executables for the
   738     # build platform. We can't use the AC_PROG_CC macro, since it can only be
   739     # used once. Also, we need to do this without adding a tools dir to the
   740     # path, otherwise we might pick up cross-compilers which don't use standard
   741     # naming.
   743     # FIXME: we should list the discovered compilers as an exclude pattern!
   744     # If we do that, we can do this detection before POST_DETECTION, and still
   745     # find the build compilers in the tools dir, if needed.
   746     BASIC_PATH_PROGS(BUILD_CC, [cl cc gcc])
   747     BASIC_FIXUP_EXECUTABLE(BUILD_CC)
   748     BASIC_PATH_PROGS(BUILD_CXX, [cl CC g++])
   749     BASIC_FIXUP_EXECUTABLE(BUILD_CXX)
   750     BASIC_PATH_PROGS(BUILD_LD, ld)
   751     BASIC_FIXUP_EXECUTABLE(BUILD_LD)
   752   else
   753     # If we are not cross compiling, use the normal target compilers for
   754     # building the build platform executables.
   755     BUILD_CC="$CC"
   756     BUILD_CXX="$CXX"
   757     BUILD_LD="$LD"
   758   fi
   759 ])
   761 # Setup legacy variables that are still needed as alternative ways to refer to
   762 # parts of the toolchain.
   763 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_LEGACY],
   764 [
   765   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
   766     # For hotspot, we need these in Windows mixed path,
   767     # so rewrite them all. Need added .exe suffix.
   768     HOTSPOT_CXX="$CXX.exe"
   769     HOTSPOT_LD="$LD.exe"
   770     HOTSPOT_MT="$MT.exe"
   771     HOTSPOT_RC="$RC.exe"
   772     BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_CXX)
   773     BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_LD)
   774     BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_MT)
   775     BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_RC)
   776     AC_SUBST(HOTSPOT_MT)
   777     AC_SUBST(HOTSPOT_RC)
   778   else
   779     HOTSPOT_CXX="$CXX"
   780     HOTSPOT_LD="$LD"
   781   fi
   782   AC_SUBST(HOTSPOT_CXX)
   783   AC_SUBST(HOTSPOT_LD)
   785   if test  "x$TOOLCHAIN_TYPE" = xclang; then
   786     USE_CLANG=true
   787   fi
   788   AC_SUBST(USE_CLANG)
   790   # LDEXE is the linker to use, when creating executables. Not really used.
   791   # FIXME: These should just be removed!
   792   LDEXE="$LD"
   793   LDEXECXX="$LDCXX"
   794   AC_SUBST(LDEXE)
   795   AC_SUBST(LDEXECXX)
   796 ])
   798 # Do some additional checks on the detected tools.
   799 AC_DEFUN_ONCE([TOOLCHAIN_MISC_CHECKS],
   800  [
   801   # The package path is used only on macosx?
   802   # FIXME: clean this up, and/or move it elsewhere.
   803   PACKAGE_PATH=/opt/local
   804   AC_SUBST(PACKAGE_PATH)
   806   # Check for extra potential brokenness.
   807   if test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
   808     # On Windows, double-check that we got the right compiler.
   809     CC_VERSION_OUTPUT=`$CC 2>&1 | $HEAD -n 1 | $TR -d '\r'`
   810     COMPILER_CPU_TEST=`$ECHO $CC_VERSION_OUTPUT | $SED -n "s/^.* \(.*\)$/\1/p"`
   811     if test "x$OPENJDK_TARGET_CPU" = "xx86"; then
   812       if test "x$COMPILER_CPU_TEST" != "x80x86"; then
   813         AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "80x86".])
   814       fi
   815     elif test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
   816       if test "x$COMPILER_CPU_TEST" != "xx64"; then
   817         AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "x64".])
   818       fi
   819     fi
   820   fi
   822   if test "x$TOOLCHAIN_TYPE" = xgcc; then
   823     # If this is a --hash-style=gnu system, use --hash-style=both, why?
   824     HAS_GNU_HASH=`$CC -dumpspecs 2>/dev/null | $GREP 'hash-style=gnu'`
   825     # This is later checked when setting flags.
   826   fi
   828   # Check for broken SuSE 'ld' for which 'Only anonymous version tag is allowed
   829   # in executable.'
   830   USING_BROKEN_SUSE_LD=no
   831   if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$TOOLCHAIN_TYPE" = xgcc; then
   832     AC_MSG_CHECKING([for broken SuSE 'ld' which only understands anonymous version tags in executables])
   833     echo "SUNWprivate_1.1 { local: *; };" > version-script.map
   834     echo "int main() { }" > main.c
   835     if $CXX -Xlinker -version-script=version-script.map main.c 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then
   836       AC_MSG_RESULT(no)
   837       USING_BROKEN_SUSE_LD=no
   838     else
   839       AC_MSG_RESULT(yes)
   840       USING_BROKEN_SUSE_LD=yes
   841     fi
   842     rm -rf version-script.map main.c
   843   fi
   844   AC_SUBST(USING_BROKEN_SUSE_LD)
   845 ])
   847 # Setup the JTReg Regression Test Harness.
   848 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_JTREG],
   849 [
   850   AC_ARG_WITH(jtreg, [AS_HELP_STRING([--with-jtreg],
   851       [Regression Test Harness @<:@probed@:>@])],
   852       [],
   853       [with_jtreg=no])
   855   if test "x$with_jtreg" = xno; then
   856     # jtreg disabled
   857     AC_MSG_CHECKING([for jtreg])
   858     AC_MSG_RESULT(no)
   859   else
   860     if test "x$with_jtreg" != xyes; then
   861       # with path specified.
   862       JT_HOME="$with_jtreg"
   863     fi
   865     if test "x$JT_HOME" != x; then
   866       AC_MSG_CHECKING([for jtreg])
   868       # use JT_HOME enviroment var.
   869       BASIC_FIXUP_PATH([JT_HOME])
   871       # jtreg win32 script works for everybody
   872       JTREGEXE="$JT_HOME/bin/jtreg"
   874       if test ! -f "$JTREGEXE"; then
   875         AC_MSG_ERROR([JTReg executable does not exist: $JTREGEXE])
   876       fi
   878       AC_MSG_RESULT($JTREGEXE)
   879     else
   880       # try to find jtreg on path
   881       BASIC_REQUIRE_PROGS(JTREGEXE, jtreg)
   882       JT_HOME="`$DIRNAME $JTREGEXE`"
   883     fi
   884   fi
   886   AC_SUBST(JT_HOME)
   887   AC_SUBST(JTREGEXE)
   888 ])

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