jdk8-mips64-public: common/autoconf/toolchain.m4@0e87966d7ff1 (annotated)

common/autoconf/toolchain.m4@0e87966d7ff1 (annotated)

common/autoconf/toolchain.m4

Tue, 20 Mar 2018 09:19:10 -0700

author: kevinw
date: Tue, 20 Mar 2018 09:19:10 -0700
changeset 2204: 0e87966d7ff1
parent 2172: a0101c7abbb9
child 2206: 7ba4e17574e0
permissions: -rw-r--r--

8031759: Improved tool overriding in configure
Reviewed-by: ihse, tbell, mduigou, erikj

 #
 # Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License version 2 only, as
 # published by the Free Software Foundation.  Oracle designates this
 # particular file as subject to the "Classpath" exception as provided
 # by Oracle in the LICENSE file that accompanied this code.
 #
 # This code is distributed in the hope that it will be useful, but WITHOUT
 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 # version 2 for more details (a copy is included in the LICENSE file that
 # accompanied this code).
 #
 # You should have received a copy of the GNU General Public License version
 # 2 along with this work; if not, write to the Free Software Foundation,
 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 #
 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
 # Prepare the system so that TOOLCHAIN_CHECK_COMPILER_VERSION can be called.
 # Must have CC_VERSION_NUMBER and CXX_VERSION_NUMBER.
 AC_DEFUN([TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS],
 [
   if test "x$CC_VERSION" != "x$CXX_VERSION"; then
     AC_MSG_WARN([C and C++ compiler has different version numbers, $CC_VERSION vs $CXX_VERSION.])
     AC_MSG_WARN([This typically indicates a broken setup, and is not supported])
   fi
   # We only check CC_VERSION since we assume CXX_VERSION is equal.
   if [ [[ "$CC_VERSION" =~ (.*\.){3} ]] ]; then
     AC_MSG_WARN([C compiler version number has more than three parts (X.Y.Z): $CC_VERSION. Comparisons might be wrong.])
   fi
   if [ [[  "$CC_VERSION" =~ [0-9]{6} ]] ]; then
     AC_MSG_WARN([C compiler version number has a part larger than 99999: $CC_VERSION. Comparisons might be wrong.])
   fi
   COMPARABLE_ACTUAL_VERSION=`$AWK -F. '{ printf("%05d%05d%05d\n", [$]1, [$]2, [$]3) }' <<< "$CC_VERSION"`
 ])
 # Check if the configured compiler (C and C++) is of a specific version or
 # newer. TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS must have been called before.
 #
 # Arguments:
 #   $1:   The version string to check against the found version
 #   $2:   block to run if the compiler is at least this version (>=)
 #   $3:   block to run if the compiler is older than this version (<)
 AC_DEFUN([TOOLCHAIN_CHECK_COMPILER_VERSION],
 [
   REFERENCE_VERSION=$1
   if [ [[ "$REFERENCE_VERSION" =~ (.*\.){3} ]] ]; then
     AC_MSG_ERROR([Internal error: Cannot compare to $REFERENCE_VERSION, only three parts (X.Y.Z) is supported])
   fi
   if [ [[ "$REFERENCE_VERSION" =~ [0-9]{6} ]] ]; then
     AC_MSG_ERROR([Internal error: Cannot compare to $REFERENCE_VERSION, only parts < 99999 is supported])
   fi
   # Version comparison method inspired by http://stackoverflow.com/a/24067243
   COMPARABLE_REFERENCE_VERSION=`$AWK -F. '{ printf("%05d%05d%05d\n", [$]1, [$]2, [$]3) }' <<< "$REFERENCE_VERSION"`
   if test $COMPARABLE_ACTUAL_VERSION -ge $COMPARABLE_REFERENCE_VERSION ; then
     m4_ifval([$2], [$2], [:])
   else
     m4_ifval([$3], [$3], [:])
   fi
 ])
 # $1 = compiler to test (CC or CXX)
 # $2 = human readable name of compiler (C or C++)
 AC_DEFUN([TOOLCHAIN_EXTRACT_COMPILER_VERSION],
 [
   COMPILER=[$]$1
   COMPILER_NAME=$2
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
     # Make sure we use the Sun Studio compiler and not gcc on Solaris, which won't work
     COMPILER_VERSION_TEST=`$COMPILER -V 2>&1 | $HEAD -n 1`
     $ECHO $COMPILER_VERSION_TEST | $GREP "^.*: Sun $COMPILER_NAME" > /dev/null
     if test $? -ne 0; then
       GCC_VERSION_TEST=`$COMPILER --version 2>&1 | $HEAD -n 1`
       AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required Sun Studio compiler.])
       AC_MSG_NOTICE([The result from running with -V was: "$COMPILER_VERSION_TEST" and with --version: "$GCC_VERSION_TEST"])
       AC_MSG_ERROR([Sun Studio compiler is required. Try setting --with-tools-dir.])
     else
       COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.*@<:@ ,\t@:>@$COMPILER_NAME@<:@ ,\t@:>@\(@<:@1-9@:>@\.@<:@0-9@:>@@<:@0-9@:>@*\).*/\1/p"`
       COMPILER_VENDOR="Sun Studio"
     fi
   elif test  "x$OPENJDK_TARGET_OS" = xaix; then
       COMPILER_VERSION_TEST=`$COMPILER -qversion  2>&1 | $TAIL -n 1`
       $ECHO $COMPILER_VERSION_TEST | $GREP "^Version: " > /dev/null
       if test $? -ne 0; then
         AC_MSG_ERROR([Failed to detect the compiler version of $COMPILER ....])
       else
         COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | $SED -n 's/Version: \([0-9][0-9]\.[0-9][0-9]*\).*/\1/p'`
         COMPILER_VENDOR='IBM'
       fi
   elif test  "x$OPENJDK_TARGET_OS" = xwindows; then
     # First line typically looks something like:
     # Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86
     COMPILER_VERSION_TEST=`$COMPILER 2>&1 | $HEAD -n 1 | $TR -d '\r'`
     COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.*Version \(@<:@1-9@:>@@<:@0-9.@:>@*\) .*/\1/p"`
     COMPILER_VENDOR="Microsoft CL.EXE"
     COMPILER_CPU_TEST=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.* for \(.*\)$/\1/p"`
     if test "x$OPENJDK_TARGET_CPU" = "xx86"; then
       if test "x$COMPILER_CPU_TEST" != "x80x86"; then
         AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "80x86".])
       fi
     elif test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
       if test "x$COMPILER_CPU_TEST" != "xx64"; then
         AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "x64".])
       fi
     fi
   else
     COMPILER_VERSION_TEST=`$COMPILER --version 2>&1 | $HEAD -n 1`
     # Check that this is likely to be GCC.
     $COMPILER --version 2>&1 | $GREP "Free Software Foundation" > /dev/null
     if test $? -ne 0; then
       AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required GCC compiler.])
       AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION_TEST"])
       AC_MSG_ERROR([GCC compiler is required. Try setting --with-tools-dir.])
     fi
     # First line typically looks something like:
     # gcc (Ubuntu/Linaro 4.5.2-8ubuntu4) 4.5.2
     COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | \
         $SED -e 's/^.* \(@<:@1-9@:>@\.@<:@0-9.@:>@*\)@<:@^0-9.@:>@.*$/\1/'`
     COMPILER_VENDOR=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^\(.*\) @<:@1-9@:>@@<:@0-9.@:>@*/\1/p"`
   fi
   # This sets CC_VERSION or CXX_VERSION. (This comment is a grep marker)
   $1_VERSION="$COMPILER_VERSION"
   # This sets CC_VENDOR or CXX_VENDOR. (This comment is a grep marker)
   $1_VENDOR="$COMPILER_VENDOR"
   AC_MSG_NOTICE([Using $COMPILER_VENDOR $COMPILER_NAME compiler version $COMPILER_VERSION (located at $COMPILER)])
 ])
 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_SYSROOT_AND_OUT_OPTIONS],
 [
   ###############################################################################
   #
   # Configure the development tool paths and potential sysroot.
   #
   AC_LANG(C++)
   # The option used to specify the target .o,.a or .so file.
   # When compiling, how to specify the to be created object file.
   CC_OUT_OPTION='-o$(SPACE)'
   # When linking, how to specify the to be created executable.
   EXE_OUT_OPTION='-o$(SPACE)'
   # When linking, how to specify the to be created dynamically linkable library.
   LD_OUT_OPTION='-o$(SPACE)'
   # When archiving, how to specify the to be create static archive for object files.
   AR_OUT_OPTION='rcs$(SPACE)'
   AC_SUBST(CC_OUT_OPTION)
   AC_SUBST(EXE_OUT_OPTION)
   AC_SUBST(LD_OUT_OPTION)
   AC_SUBST(AR_OUT_OPTION)
 ])
 # $1 = compiler to test (CC or CXX)
 # $2 = human readable name of compiler (C or C++)
 # $3 = list of compiler names to search for
 AC_DEFUN([TOOLCHAIN_FIND_COMPILER],
 [
   COMPILER_NAME=$2
   $1=
   # If TOOLS_DIR is set, check for all compiler names in there first
   # before checking the rest of the PATH.
   if test -n "$TOOLS_DIR"; then
     PATH_save="$PATH"
     PATH="$TOOLS_DIR"
     AC_PATH_PROGS(TOOLS_DIR_$1, $3)
     $1=$TOOLS_DIR_$1
     PATH="$PATH_save"
   fi
   # AC_PATH_PROGS can't be run multiple times with the same variable,
   # so create a new name for this run.
   if test "x[$]$1" = x; then
     AC_PATH_PROGS(POTENTIAL_$1, $3)
     $1=$POTENTIAL_$1
   fi
   if test "x[$]$1" = x; then
     HELP_MSG_MISSING_DEPENDENCY([devkit])
     AC_MSG_ERROR([Could not find a $COMPILER_NAME compiler. $HELP_MSG])
   fi
   BASIC_FIXUP_EXECUTABLE($1)
   TEST_COMPILER="[$]$1"
   # Don't remove symbolic links on AIX because 'xlc_r' and 'xlC_r' may all be links
   # to 'xlc' but it is crucial that we invoke the compiler with the right name!
   if test "x$OPENJDK_BUILD_OS" != xaix; then
     AC_MSG_CHECKING([resolved symbolic links for $1])
     BASIC_REMOVE_SYMBOLIC_LINKS(TEST_COMPILER)
     AC_MSG_RESULT([$TEST_COMPILER])
   fi
   AC_MSG_CHECKING([if $1 is disguised ccache])
   COMPILER_BASENAME=`$BASENAME "$TEST_COMPILER"`
   if test "x$COMPILER_BASENAME" = "xccache"; then
     AC_MSG_RESULT([yes, trying to find proper $COMPILER_NAME compiler])
     # We /usr/lib/ccache in the path, so cc is a symlink to /usr/bin/ccache.
     # We want to control ccache invocation ourselves, so ignore this cc and try
     # searching again.
     # Remove the path to the fake ccache cc from the PATH
     RETRY_COMPILER_SAVED_PATH="$PATH"
     COMPILER_DIRNAME=`$DIRNAME [$]$1`
     PATH="`$ECHO $PATH | $SED -e "s,$COMPILER_DIRNAME,,g" -e "s,::,:,g" -e "s,^:,,g"`"
     # Try again looking for our compiler
     AC_CHECK_TOOLS(PROPER_COMPILER_$1, $3)
     BASIC_FIXUP_EXECUTABLE(PROPER_COMPILER_$1)
     PATH="$RETRY_COMPILER_SAVED_PATH"
     AC_MSG_CHECKING([for resolved symbolic links for $1])
     BASIC_REMOVE_SYMBOLIC_LINKS(PROPER_COMPILER_$1)
     AC_MSG_RESULT([$PROPER_COMPILER_$1])
     $1="$PROPER_COMPILER_$1"
   else
     AC_MSG_RESULT([no, keeping $1])
     $1="$TEST_COMPILER"
   fi
   TOOLCHAIN_EXTRACT_COMPILER_VERSION([$1], [$COMPILER_NAME])
 ])
 AC_DEFUN([TOOLCHAIN_SETUP_PATHS],
 [
   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
     TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV
     TOOLCHAIN_SETUP_MSVCR_DLL
     BASIC_DEPRECATED_ARG_WITH([dxsdk])
     BASIC_DEPRECATED_ARG_WITH([dxsdk-lib])
     BASIC_DEPRECATED_ARG_WITH([dxsdk-include])
   fi
   AC_SUBST(MSVCR_DLL)
   # If --build AND --host is set, then the configure script will find any
   # cross compilation tools in the PATH. Cross compilation tools
   # follows the cross compilation standard where they are prefixed with ${host}.
   # For example the binary i686-sun-solaris2.10-gcc
   # will cross compile for i686-sun-solaris2.10
   # If neither of build and host is not set, then build=host and the
   # default compiler found in the path will be used.
   # Setting only --host, does not seem to be really supported.
   # Please set both --build and --host if you want to cross compile.
   if test "x$COMPILE_TYPE" = "xcross"; then
     # Now we to find a C/C++ compiler that can build executables for the build
     # platform. We can't use the AC_PROG_CC macro, since it can only be used
     # once. Also, we need to do this before adding a tools dir to the path,
     # otherwise we might pick up cross-compilers which don't use standard naming.
     # Otherwise, we'll set the BUILD_tools to the native tools, but that'll have
     # to wait until they are properly discovered.
     BASIC_PATH_PROGS(BUILD_CC, [cl cc gcc])
     BASIC_FIXUP_EXECUTABLE(BUILD_CC)
     BASIC_PATH_PROGS(BUILD_CXX, [cl CC g++])
     BASIC_FIXUP_EXECUTABLE(BUILD_CXX)
     BASIC_PATH_PROGS(BUILD_LD, ld)
     BASIC_FIXUP_EXECUTABLE(BUILD_LD)
   fi
   AC_SUBST(BUILD_CC)
   AC_SUBST(BUILD_CXX)
   AC_SUBST(BUILD_LD)
   # If a devkit is found on the builddeps server, then prepend its path to the
   # PATH variable. If there are cross compilers available in the devkit, these
   # will be found by AC_PROG_CC et al.
   DEVKIT=
   BDEPS_CHECK_MODULE(DEVKIT, devkit, xxx,
       [
         # Found devkit
         PATH="$DEVKIT/bin:$PATH"
         SYS_ROOT="$DEVKIT/${rewritten_target}/sys-root"
         if test "x$x_includes" = "xNONE"; then
           x_includes="$SYS_ROOT/usr/include/X11"
         fi
         if test "x$x_libraries" = "xNONE"; then
           x_libraries="$SYS_ROOT/usr/lib"
         fi
       ],
       [])
   # Store the CFLAGS etal passed to the configure script.
   ORG_CFLAGS="$CFLAGS"
   ORG_CXXFLAGS="$CXXFLAGS"
   ORG_OBJCFLAGS="$OBJCFLAGS"
   # autoconf magic only relies on PATH, so update it if tools dir is specified
   OLD_PATH="$PATH"
   if test "x$TOOLS_DIR" != x; then
     PATH=$TOOLS_DIR:$PATH
   fi
   # Before we locate the compilers, we need to sanitize the Xcode build environment
   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
     # determine path to Xcode developer directory
     # can be empty in which case all the tools will rely on a sane Xcode 4 installation
     SET_DEVELOPER_DIR=
     if test -n "$XCODE_PATH"; then
       DEVELOPER_DIR="$XCODE_PATH"/Contents/Developer
     fi
     # DEVELOPER_DIR could also be provided directly
     AC_MSG_CHECKING([Determining if we need to set DEVELOPER_DIR])
     if test -n "$DEVELOPER_DIR"; then
       if test ! -d "$DEVELOPER_DIR"; then
         AC_MSG_ERROR([Xcode Developer path does not exist: $DEVELOPER_DIR, please provide a path to the Xcode 4 application bundle using --with-xcode-path])
       fi
       if test ! -f "$DEVELOPER_DIR"/usr/bin/xcodebuild; then
         AC_MSG_ERROR([Xcode Developer path is not valid: $DEVELOPER_DIR, it must point to Contents/Developer inside an Xcode application bundle])
       fi
       # make it visible to all the tools immediately
       export DEVELOPER_DIR
       SET_DEVELOPER_DIR="export DEVELOPER_DIR := $DEVELOPER_DIR"
       AC_MSG_RESULT([yes ($DEVELOPER_DIR)])
     else
       AC_MSG_RESULT([no])
     fi
     AC_SUBST(SET_DEVELOPER_DIR)
     AC_PATH_PROG(XCODEBUILD, xcodebuild)
     if test -z "$XCODEBUILD"; then
       AC_MSG_ERROR([The xcodebuild tool was not found, the Xcode command line tools are required to build on Mac OS X])
     fi
     # Fail-fast: verify we're building on Xcode 4, we cannot build with Xcode 5 or later
     XCODE_VERSION=`$XCODEBUILD -version | grep '^Xcode ' | sed 's/Xcode //'`
     XC_VERSION_PARTS=( ${XCODE_VERSION//./ } )
     if test ! "${XC_VERSION_PARTS[[0]]}" = "4"; then
       AC_MSG_ERROR([Xcode 4 is required to build JDK 8, the version found was $XCODE_VERSION. Use --with-xcode-path to specify the location of Xcode 4 or make Xcode 4 active by using xcode-select.])
     fi
     # Some versions of Xcode 5 command line tools install gcc and g++ as symlinks to
     # clang and clang++, which will break the build. So handle that here if we need to.
     if test -L "/usr/bin/gcc" -o -L "/usr/bin/g++"; then
       # use xcrun to find the real gcc and add it's directory to PATH
       # then autoconf magic will find it
       AC_MSG_NOTICE([Found gcc symlinks to clang in /usr/bin, adding path to real gcc to PATH])
       XCODE_BIN_PATH=$(dirname `xcrun -find gcc`)
       PATH="$XCODE_BIN_PATH":$PATH
     fi
     # Determine appropriate SDKPATH, don't use SDKROOT as it interferes with the stub tools
     AC_MSG_CHECKING([Determining Xcode SDK path])
     # allow SDKNAME to be set to override the default SDK selection
     SDKPATH=`"$XCODEBUILD" -sdk ${SDKNAME:-macosx} -version | grep '^Path: ' | sed 's/Path: //'`
     if test -n "$SDKPATH"; then
       AC_MSG_RESULT([$SDKPATH])
     else
       AC_MSG_RESULT([(none, will use system headers and frameworks)])
     fi
     AC_SUBST(SDKPATH)
     # Perform a basic sanity test
     if test ! -f "$SDKPATH/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h"; then
       AC_MSG_ERROR([Unable to find required framework headers, provide a valid path to Xcode 4 using --with-xcode-path])
     fi
     # if SDKPATH is non-empty then we need to add -isysroot and -iframework for gcc and g++
     if test -n "$SDKPATH"; then
       # We need -isysroot <path> and -iframework<path>/System/Library/Frameworks
       CFLAGS_JDK="${CFLAGS_JDK} -isysroot \"$SDKPATH\" -iframework\"$SDKPATH/System/Library/Frameworks\""
       CXXFLAGS_JDK="${CXXFLAGS_JDK} -isysroot \"$SDKPATH\" -iframework\"$SDKPATH/System/Library/Frameworks\""
       LDFLAGS_JDK="${LDFLAGS_JDK} -isysroot \"$SDKPATH\" -iframework\"$SDKPATH/System/Library/Frameworks\""
     fi
     # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework
     # setting this here means it doesn't have to be peppered throughout the forest
     CFLAGS_JDK="$CFLAGS_JDK -F\"$SDKPATH/System/Library/Frameworks/JavaVM.framework/Frameworks\""
     CXXFLAGS_JDK="$CXXFLAGS_JDK -F\"$SDKPATH/System/Library/Frameworks/JavaVM.framework/Frameworks\""
     LDFLAGS_JDK="$LDFLAGS_JDK -F\"$SDKPATH/System/Library/Frameworks/JavaVM.framework/Frameworks\""
   fi
   ### Locate C compiler (CC)
   # On windows, only cl.exe is supported.
   # On Solaris, cc is preferred to gcc.
   # Elsewhere, gcc is preferred to cc.
   if test "x$CC" != x; then
     COMPILER_CHECK_LIST="$CC"
   elif test "x$OPENJDK_TARGET_OS" = "xwindows"; then
     COMPILER_CHECK_LIST="cl"
   elif test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
     COMPILER_CHECK_LIST="cc gcc"
   elif test "x$OPENJDK_TARGET_OS" = "xaix"; then
     # Do not probe for cc on AIX.
     COMPILER_CHECK_LIST="xlc_r"
   else
     COMPILER_CHECK_LIST="gcc cc"
   fi
   TOOLCHAIN_FIND_COMPILER([CC],[C],[$COMPILER_CHECK_LIST])
   # Now that we have resolved CC ourself, let autoconf have its go at it
   AC_PROG_CC([$CC])
   # Option used to tell the compiler whether to create 32- or 64-bit executables
   # Notice that CC contains the full compiler path at this point.
   case $CC in
     *xlc_r) COMPILER_TARGET_BITS_FLAG="-q";;
     *)      COMPILER_TARGET_BITS_FLAG="-m";;
   esac
   AC_SUBST(COMPILER_TARGET_BITS_FLAG)
   ### Locate C++ compiler (CXX)
   if test "x$CXX" != x; then
     COMPILER_CHECK_LIST="$CXX"
   elif test "x$OPENJDK_TARGET_OS" = "xwindows"; then
     COMPILER_CHECK_LIST="cl"
   elif test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
     COMPILER_CHECK_LIST="CC g++"
   elif test "x$OPENJDK_TARGET_OS" = "xaix"; then
     # Do not probe for CC on AIX .
     COMPILER_CHECK_LIST="xlC_r"
   else
     COMPILER_CHECK_LIST="g++ CC"
   fi
   TOOLCHAIN_FIND_COMPILER([CXX],[C++],[$COMPILER_CHECK_LIST])
   # Now that we have resolved CXX ourself, let autoconf have its go at it
   AC_PROG_CXX([$CXX])
   # This is the compiler version number on the form X.Y[.Z]
   AC_SUBST(CC_VERSION)
   AC_SUBST(CXX_VERSION)
   TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS
   ### Locate other tools
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
     AC_PROG_OBJC
     BASIC_FIXUP_EXECUTABLE(OBJC)
   else
     OBJC=
   fi
   # Restore the flags to the user specified values.
   # This is necessary since AC_PROG_CC defaults CFLAGS to "-g -O2"
   CFLAGS="$ORG_CFLAGS"
   CXXFLAGS="$ORG_CXXFLAGS"
   OBJCFLAGS="$ORG_OBJCFLAGS"
   LD="$CC"
   LDEXE="$CC"
   LDCXX="$CXX"
   LDEXECXX="$CXX"
   AC_SUBST(LD)
   # LDEXE is the linker to use, when creating executables.
   AC_SUBST(LDEXE)
   # Linking C++ libraries.
   AC_SUBST(LDCXX)
   # Linking C++ executables.
   AC_SUBST(LDEXECXX)
   if test "x$OPENJDK_TARGET_OS" != xwindows; then
     BASIC_CHECK_TOOLS(AR, ar)
     BASIC_FIXUP_EXECUTABLE(AR)
   fi
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
     ARFLAGS="-r"
   elif test "x$OPENJDK_TARGET_OS" = xaix; then
     ARFLAGS="-X64"
   else
     ARFLAGS=""
   fi
   AC_SUBST(ARFLAGS)
   # For hotspot, we need these in Windows mixed path; other platforms keep them the same
   HOTSPOT_CXX="$CXX"
   HOTSPOT_LD="$LD"
   AC_SUBST(HOTSPOT_CXX)
   AC_SUBST(HOTSPOT_LD)
   COMPILER_NAME=gcc
   COMPILER_TYPE=CC
   AS_IF([test "x$OPENJDK_TARGET_OS" = xwindows], [
     # For now, assume that we are always compiling using cl.exe.
     CC_OUT_OPTION=-Fo
     EXE_OUT_OPTION=-out:
     LD_OUT_OPTION=-out:
     AR_OUT_OPTION=-out:
     # On Windows, reject /usr/bin/link (as determined in CYGWIN_LINK), which is a cygwin
     # program for something completely different.
     AC_CHECK_PROG([WINLD], [link],[link],,, [$CYGWIN_LINK])
     # Since we must ignore the first found link, WINLD will contain
     # the full path to the link.exe program.
     BASIC_FIXUP_EXECUTABLE(WINLD)
     printf "Windows linker was found at $WINLD\n"
     AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
     "$WINLD" --version > /dev/null
     if test $? -eq 0 ; then
       AC_MSG_RESULT([no])
       AC_MSG_ERROR([This is the Cygwin link tool. Please check your PATH and rerun configure.])
     else
       AC_MSG_RESULT([yes])
     fi
     LD="$WINLD"
     LDEXE="$WINLD"
     LDCXX="$WINLD"
     LDEXECXX="$WINLD"
     AC_CHECK_PROG([MT], [mt], [mt],,, [/usr/bin/mt])
     BASIC_FIXUP_EXECUTABLE(MT)
     # The resource compiler
     AC_CHECK_PROG([RC], [rc], [rc],,, [/usr/bin/rc])
     BASIC_FIXUP_EXECUTABLE(RC)
     # For hotspot, we need these in Windows mixed path,
     # so rewrite them all. Need added .exe suffix.
     HOTSPOT_CXX="$CXX.exe"
     HOTSPOT_LD="$LD.exe"
     HOTSPOT_MT="$MT.exe"
     HOTSPOT_RC="$RC.exe"
     BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_CXX)
     BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_LD)
     BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_MT)
     BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_RC)
     AC_SUBST(HOTSPOT_MT)
     AC_SUBST(HOTSPOT_RC)
     RC_FLAGS="-nologo -l 0x409 -r"
     AS_IF([test "x$VARIANT" = xOPT], [
     RC_FLAGS="$RC_FLAGS -d NDEBUG"
   ])
   # The version variables used to create RC_FLAGS may be overridden
   # in a custom configure script, or possibly the command line.
   # Let those variables be expanded at make time in spec.gmk.
   # The \$ are escaped to the shell, and the $(...) variables
   # are evaluated by make.
   RC_FLAGS="$RC_FLAGS \
       -d \"JDK_BUILD_ID=\$(FULL_VERSION)\" \
       -d \"JDK_COMPANY=\$(COMPANY_NAME)\" \
       -d \"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \
       -d \"JDK_VER=\$(JDK_MINOR_VERSION).\$(JDK_MICRO_VERSION).\$(COOKED_JDK_UPDATE_VERSION).\$(COOKED_BUILD_NUMBER)\" \
       -d \"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \
       -d \"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(JDK_MINOR_VERSION) \$(JDK_UPDATE_META_TAG)\" \
       -d \"JDK_FVER=\$(JDK_MINOR_VERSION),\$(JDK_MICRO_VERSION),\$(COOKED_JDK_UPDATE_VERSION),\$(COOKED_BUILD_NUMBER)\""
   # lib.exe is used to create static libraries.
   AC_CHECK_PROG([WINAR], [lib],[lib],,,)
   BASIC_FIXUP_EXECUTABLE(WINAR)
   AR="$WINAR"
   ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"
   AC_CHECK_PROG([DUMPBIN], [dumpbin], [dumpbin],,,)
       BASIC_FIXUP_EXECUTABLE(DUMPBIN)
       COMPILER_TYPE=CL
       # silence copyright notice and other headers.
       COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo"
   ])
   AC_SUBST(RC_FLAGS)
   AC_SUBST(COMPILER_TYPE)
   AC_PROG_CPP
   BASIC_FIXUP_EXECUTABLE(CPP)
   AC_PROG_CXXCPP
   BASIC_FIXUP_EXECUTABLE(CXXCPP)
   if test "x$COMPILE_TYPE" != "xcross"; then
     # If we are not cross compiling, use the same compilers for
     # building the build platform executables. The cross-compilation
     # case needed to be done earlier, but this can only be done after
     # the native tools have been localized.
     BUILD_CC="$CC"
     BUILD_CXX="$CXX"
     BUILD_LD="$LD"
   fi
   # for solaris we really need solaris tools, and not gnu equivalent
   #   these seems to normally reside in /usr/ccs/bin so add that to path before
   #   starting to probe
   #
   #   NOTE: I add this /usr/ccs/bin after TOOLS but before OLD_PATH
   #         so that it can be overriden --with-tools-dir
   if test "x$OPENJDK_BUILD_OS" = xsolaris; then
     PATH="${TOOLS_DIR}:/usr/ccs/bin:${OLD_PATH}"
   fi
   # Find the right assembler.
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
     BASIC_PATH_PROGS(AS, as)
     BASIC_FIXUP_EXECUTABLE(AS)
   else
     AS="$CC -c"
   fi
   AC_SUBST(AS)
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
     BASIC_PATH_PROGS(NM, nm)
     BASIC_FIXUP_EXECUTABLE(NM)
     BASIC_PATH_PROGS(GNM, gnm)
     BASIC_FIXUP_EXECUTABLE(GNM)
     BASIC_PATH_PROGS(STRIP, strip)
     BASIC_FIXUP_EXECUTABLE(STRIP)
     BASIC_PATH_PROGS(MCS, mcs)
     BASIC_FIXUP_EXECUTABLE(MCS)
   elif test "x$OPENJDK_TARGET_OS" != xwindows; then
     AC_PATH_PROG(OTOOL, otool)
     if test "x$OTOOL" = "x"; then
       OTOOL="true"
     fi
     BASIC_CHECK_TOOLS(NM, nm)
     BASIC_FIXUP_EXECUTABLE(NM)
     GNM="$NM"
     AC_SUBST(GNM)
     BASIC_CHECK_TOOLS(STRIP, strip)
     BASIC_FIXUP_EXECUTABLE(STRIP)
   fi
   # objcopy is used for moving debug symbols to separate files when
   # full debug symbols are enabled.
   if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xlinux; then
     BASIC_CHECK_TOOLS(OBJCOPY, [gobjcopy objcopy])
     # Only call fixup if objcopy was found.
     if test -n "$OBJCOPY"; then
       BASIC_FIXUP_EXECUTABLE(OBJCOPY)
     fi
   fi
   BASIC_CHECK_TOOLS(OBJDUMP, [gobjdump objdump])
   if test "x$OBJDUMP" != x; then
     # Only used for compare.sh; we can live without it. BASIC_FIXUP_EXECUTABLE bails if argument is missing.
     BASIC_FIXUP_EXECUTABLE(OBJDUMP)
   fi
   TOOLCHAIN_SETUP_JTREG
   # Restore old path without tools dir
   PATH="$OLD_PATH"
 ])
 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_FOR_LIBS],
 [
   ###############################################################################
   #
   # How to compile shared libraries.
   #
   if test "x$GCC" = xyes; then
     COMPILER_NAME=gcc
     PICFLAG="-fPIC"
     LIBRARY_PREFIX=lib
     SHARED_LIBRARY='lib[$]1.so'
     STATIC_LIBRARY='lib[$]1.a'
     SHARED_LIBRARY_FLAGS="-shared"
     SHARED_LIBRARY_SUFFIX='.so'
     STATIC_LIBRARY_SUFFIX='.a'
     OBJ_SUFFIX='.o'
     EXE_SUFFIX=''
     SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
     SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
     C_FLAG_REORDER=''
     CXX_FLAG_REORDER=''
     SET_SHARED_LIBRARY_ORIGIN='-Xlinker -z -Xlinker origin -Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
     SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
     LD="$CC"
     LDEXE="$CC"
     LDCXX="$CXX"
     LDEXECXX="$CXX"
     POST_STRIP_CMD="$STRIP -g"
     # Linking is different on MacOSX
     if test "x$OPENJDK_TARGET_OS" = xmacosx; then
       # Might change in the future to clang.
       COMPILER_NAME=gcc
       SHARED_LIBRARY='lib[$]1.dylib'
       SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
       SHARED_LIBRARY_SUFFIX='.dylib'
       EXE_SUFFIX=''
       SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
       SET_SHARED_LIBRARY_MAPFILE=''
       SET_SHARED_LIBRARY_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
       SET_EXECUTABLE_ORIGIN="$SET_SHARED_LIBRARY_ORIGIN"
       POST_STRIP_CMD="$STRIP -S"
     fi
   else
     if test "x$OPENJDK_TARGET_OS" = xsolaris; then
       # If it is not gcc, then assume it is the Oracle Solaris Studio Compiler
       COMPILER_NAME=ossc
       PICFLAG="-KPIC"
       LIBRARY_PREFIX=lib
       SHARED_LIBRARY='lib[$]1.so'
       STATIC_LIBRARY='lib[$]1.a'
       SHARED_LIBRARY_FLAGS="-G"
       SHARED_LIBRARY_SUFFIX='.so'
       STATIC_LIBRARY_SUFFIX='.a'
       OBJ_SUFFIX='.o'
       EXE_SUFFIX=''
       SET_SHARED_LIBRARY_NAME=''
       SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
       C_FLAG_REORDER='-xF'
       CXX_FLAG_REORDER='-xF'
       SET_SHARED_LIBRARY_ORIGIN='-R\$$$$ORIGIN[$]1'
       SET_EXECUTABLE_ORIGIN="$SET_SHARED_LIBRARY_ORIGIN"
       CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
       CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
       CFLAGS_JDKLIB_EXTRA='-xstrconst'
       POST_STRIP_CMD="$STRIP -x"
       POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\""
     fi
     if test "x$OPENJDK_TARGET_OS" = xaix; then
         COMPILER_NAME=xlc
         PICFLAG="-qpic=large"
         LIBRARY_PREFIX=lib
         SHARED_LIBRARY='lib[$]1.so'
         STATIC_LIBRARY='lib[$]1.a'
         SHARED_LIBRARY_FLAGS="-qmkshrobj"
         SHARED_LIBRARY_SUFFIX='.so'
         STATIC_LIBRARY_SUFFIX='.a'
         OBJ_SUFFIX='.o'
         EXE_SUFFIX=''
         SET_SHARED_LIBRARY_NAME=''
         SET_SHARED_LIBRARY_MAPFILE=''
         C_FLAG_REORDER=''
         CXX_FLAG_REORDER=''
         SET_SHARED_LIBRARY_ORIGIN=''
         SET_EXECUTABLE_ORIGIN=""
         CFLAGS_JDK=""
         CXXFLAGS_JDK=""
         CFLAGS_JDKLIB_EXTRA=''
         POST_STRIP_CMD="$STRIP -X32_64"
         POST_MCS_CMD=""
     fi
     if test "x$OPENJDK_TARGET_OS" = xwindows; then
       # If it is not gcc, then assume it is the MS Visual Studio compiler
       COMPILER_NAME=cl
       PICFLAG=""
       LIBRARY_PREFIX=
       SHARED_LIBRARY='[$]1.dll'
       STATIC_LIBRARY='[$]1.lib'
       SHARED_LIBRARY_FLAGS="-LD"
       SHARED_LIBRARY_SUFFIX='.dll'
       STATIC_LIBRARY_SUFFIX='.lib'
       OBJ_SUFFIX='.obj'
       EXE_SUFFIX='.exe'
       SET_SHARED_LIBRARY_NAME=''
       SET_SHARED_LIBRARY_MAPFILE=''
       SET_SHARED_LIBRARY_ORIGIN=''
       SET_EXECUTABLE_ORIGIN=''
     fi
   fi
   AC_SUBST(COMPILER_NAME)
   AC_SUBST(OBJ_SUFFIX)
   AC_SUBST(SHARED_LIBRARY)
   AC_SUBST(STATIC_LIBRARY)
   AC_SUBST(LIBRARY_PREFIX)
   AC_SUBST(SHARED_LIBRARY_SUFFIX)
   AC_SUBST(STATIC_LIBRARY_SUFFIX)
   AC_SUBST(EXE_SUFFIX)
   AC_SUBST(SHARED_LIBRARY_FLAGS)
   AC_SUBST(SET_SHARED_LIBRARY_NAME)
   AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
   AC_SUBST(C_FLAG_REORDER)
   AC_SUBST(CXX_FLAG_REORDER)
   AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
   AC_SUBST(SET_EXECUTABLE_ORIGIN)
   AC_SUBST(POST_STRIP_CMD)
   AC_SUBST(POST_MCS_CMD)
   # The (cross) compiler is now configured, we can now test capabilities
   # of the target platform.
 ])
 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
 [
   ###############################################################################
   #
   # Setup the opt flags for different compilers
   # and different operating systems.
   #
   #
   # NOTE: check for -mstackrealign needs to be below potential addition of -m32
   #
   if test "x$OPENJDK_TARGET_CPU_BITS" = x32 && test "x$OPENJDK_TARGET_OS" = xmacosx; then
     # On 32-bit MacOSX the OS requires C-entry points to be 16 byte aligned.
     # While waiting for a better solution, the current workaround is to use -mstackrealign.
     CFLAGS="$CFLAGS -mstackrealign"
     AC_MSG_CHECKING([if 32-bit compiler supports -mstackrealign])
     AC_LINK_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])],
         [
           AC_MSG_RESULT([yes])
         ],
         [
           AC_MSG_RESULT([no])
           AC_MSG_ERROR([The selected compiler $CXX does not support -mstackrealign! Try to put another compiler in the path.])
         ]
     )
   fi
   C_FLAG_DEPS="-MMD -MF"
   CXX_FLAG_DEPS="-MMD -MF"
   case $COMPILER_TYPE in
     CC )
       case $COMPILER_NAME in
         gcc )
           case $OPENJDK_TARGET_OS in
             macosx )
               # On MacOSX we optimize for size, something
               # we should do for all platforms?
               C_O_FLAG_HI="-Os"
               C_O_FLAG_NORM="-Os"
               C_O_FLAG_NONE=""
               ;;
             *)
               C_O_FLAG_HI="-O3"
               C_O_FLAG_NORM="-O2"
               C_O_FLAG_NONE="-O0"
               ;;
           esac
           CXX_O_FLAG_HI="$C_O_FLAG_HI"
           CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
           CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
           CFLAGS_DEBUG_SYMBOLS="-g"
           CXXFLAGS_DEBUG_SYMBOLS="-g"
           if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
             CFLAGS_DEBUG_SYMBOLS="-g1"
             CXXFLAGS_DEBUG_SYMBOLS="-g1"
           fi
           ;;
         ossc )
           #
           # Forte has different names for this with their C++ compiler...
           #
           C_FLAG_DEPS="-xMMD -xMF"
           CXX_FLAG_DEPS="-xMMD -xMF"
           # Extra options used with HIGHEST
           #
           # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
           #          done with care, there are some assumptions below that need to
           #          be understood about the use of pointers, and IEEE behavior.
           #
           # Use non-standard floating point mode (not IEEE 754)
           CC_HIGHEST="$CC_HIGHEST -fns"
           # Do some simplification of floating point arithmetic (not IEEE 754)
           CC_HIGHEST="$CC_HIGHEST -fsimple"
           # Use single precision floating point with 'float'
           CC_HIGHEST="$CC_HIGHEST -fsingle"
           # Assume memory references via basic pointer types do not alias
           #   (Source with excessing pointer casting and data access with mixed
           #    pointer types are not recommended)
           CC_HIGHEST="$CC_HIGHEST -xalias_level=basic"
           # Use intrinsic or inline versions for math/std functions
           #   (If you expect perfect errno behavior, do not use this)
           CC_HIGHEST="$CC_HIGHEST -xbuiltin=%all"
           # Loop data dependency optimizations (need -xO3 or higher)
           CC_HIGHEST="$CC_HIGHEST -xdepend"
           # Pointer parameters to functions do not overlap
           #   (Similar to -xalias_level=basic usage, but less obvious sometimes.
           #    If you pass in multiple pointers to the same data, do not use this)
           CC_HIGHEST="$CC_HIGHEST -xrestrict"
           # Inline some library routines
           #   (If you expect perfect errno behavior, do not use this)
           CC_HIGHEST="$CC_HIGHEST -xlibmil"
           # Use optimized math routines
           #   (If you expect perfect errno behavior, do not use this)
           #  Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
           #CC_HIGHEST="$CC_HIGHEST -xlibmopt"
           if test "x$OPENJDK_TARGET_CPU" = xsparc; then
             CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
             CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
           fi
           case $OPENJDK_TARGET_CPU_ARCH in
             x86)
               C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xregs=no%frameptr"
               C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
               C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
               C_O_FLAG_NONE="-xregs=no%frameptr"
               CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
               CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
               CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
               CXX_O_FLAG_NONE="-xregs=no%frameptr"
               if test "x$OPENJDK_TARGET_CPU" = xx86; then
                 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
                 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
               fi
               ;;
             sparc)
               CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
               CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
               C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
               C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
               C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
               C_O_FLAG_NONE=""
               CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
               CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
               CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
               CXX_O_FLAG_NONE=""
               ;;
           esac
           CFLAGS_DEBUG_SYMBOLS="-g -xs"
           CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
           ;;
         xlc )
           C_FLAG_DEPS="-qmakedep=gcc -MF"
           CXX_FLAG_DEPS="-qmakedep=gcc -MF"
           C_O_FLAG_HIGHEST="-O3"
           C_O_FLAG_HI="-O3 -qstrict"
           C_O_FLAG_NORM="-O2"
           C_O_FLAG_NONE=""
           CXX_O_FLAG_HIGHEST="-O3"
           CXX_O_FLAG_HI="-O3 -qstrict"
           CXX_O_FLAG_NORM="-O2"
           CXX_O_FLAG_NONE=""
           CFLAGS_DEBUG_SYMBOLS="-g"
           CXXFLAGS_DEBUG_SYMBOLS="-g"
           LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall"
           CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
           CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
           ;;
       esac
       ;;
     CL )
       C_O_FLAG_HIGHEST="-O2"
       C_O_FLAG_HI="-O1"
       C_O_FLAG_NORM="-O1"
       C_O_FLAG_NONE="-Od"
       CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
       CXX_O_FLAG_HI="$C_O_FLAG_HI"
       CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
       CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
       ;;
   esac
   if test -z "$C_O_FLAG_HIGHEST"; then
     C_O_FLAG_HIGHEST="$C_O_FLAG_HI"
   fi
   if test -z "$CXX_O_FLAG_HIGHEST"; then
     CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HI"
   fi
   AC_SUBST(C_O_FLAG_HIGHEST)
   AC_SUBST(C_O_FLAG_HI)
   AC_SUBST(C_O_FLAG_NORM)
   AC_SUBST(C_O_FLAG_NONE)
   AC_SUBST(CXX_O_FLAG_HIGHEST)
   AC_SUBST(CXX_O_FLAG_HI)
   AC_SUBST(CXX_O_FLAG_NORM)
   AC_SUBST(CXX_O_FLAG_NONE)
   AC_SUBST(C_FLAG_DEPS)
   AC_SUBST(CXX_FLAG_DEPS)
 ])
 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_FOR_JDK],
 [
   if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
     AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
   fi
   if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
     AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
   fi
   if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
     AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
   fi
   AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
       [extra flags to be used when compiling jdk c-files])])
   AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
       [extra flags to be used when compiling jdk c++-files])])
   AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
       [extra flags to be used when linking jdk])])
   CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
   CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
   LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"
   # Hotspot needs these set in their legacy form
   LEGACY_EXTRA_CFLAGS=$with_extra_cflags
   LEGACY_EXTRA_CXXFLAGS=$with_extra_cxxflags
   LEGACY_EXTRA_LDFLAGS=$with_extra_ldflags
   AC_SUBST(LEGACY_EXTRA_CFLAGS)
   AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
   AC_SUBST(LEGACY_EXTRA_LDFLAGS)
   ###############################################################################
   #
   # Now setup the CFLAGS and LDFLAGS for the JDK build.
   # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
   #    CFLAGS_JDK    - C Compiler flags
   #    CXXFLAGS_JDK  - C++ Compiler flags
   #    COMMON_CCXXFLAGS_JDK - common to C and C++
   #
   case $COMPILER_NAME in
     gcc )
       COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -W -Wall -Wno-unused -Wno-parentheses \
       -pipe \
       -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
       CXXSTD_CXXFLAG="-std=gnu++98"
       TOOLCHAIN_CXX_COMPILER_CHECK_ARGUMENTS([$CXXSTD_CXXFLAG $CFLAGS_WARNINGS_ARE_ERRORS],
     					     [], [CXXSTD_CXXFLAG=""])
       CXXFLAGS_JDK="${CXXFLAGS_JDK} ${CXXSTD_CXXFLAG}"
       AC_SUBST([CXXSTD_CXXFLAG])
       case $OPENJDK_TARGET_CPU_ARCH in
         arm )
           # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
           CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
           ;;
         ppc )
           # on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing
           ;;
         * )
           COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer"
           CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
           ;;
       esac
       TOOLCHAIN_CHECK_COMPILER_VERSION(6, TOOLCHAIN_SETUP_GCC6_COMPILER_FLAGS)
       ;;
     ossc )
       COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
       case $OPENJDK_TARGET_CPU_ARCH in
         x86 )
           COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
           CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"
           ;;
       esac
       CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
       CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
       LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
       LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
       ;;
     xlc )
       CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
       CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
       LDFLAGS_JDK="$LDFLAGS_JDK"
       LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK"
       ;;
     cl )
       COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
       -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB -DWIN32_LEAN_AND_MEAN \
       -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
       -DWIN32 -DIAL"
       case $OPENJDK_TARGET_CPU in
         x86 )
           COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86"
           ;;
         x86_64 )
           COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64"
           ;;
       esac
       ;;
   esac
   ###############################################################################
   # Adjust flags according to debug level.
   case $DEBUG_LEVEL in
     fastdebug )
       CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
       CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
       C_O_FLAG_HI="$C_O_FLAG_NORM"
       C_O_FLAG_NORM="$C_O_FLAG_NORM"
       CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
       CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM"
       JAVAC_FLAGS="$JAVAC_FLAGS -g"
       ;;
     slowdebug )
       CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
       CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
       C_O_FLAG_HI="$C_O_FLAG_NONE"
       C_O_FLAG_NORM="$C_O_FLAG_NONE"
       CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"
       CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"
       JAVAC_FLAGS="$JAVAC_FLAGS -g"
       ;;
   esac
   COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64"
   # The package path is used only on macosx?
   PACKAGE_PATH=/opt/local
   AC_SUBST(PACKAGE_PATH)
   if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
     # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
     #   Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
     #   (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
     #   Note: -Dmacro         is the same as    #define macro 1
     #         -Dmacro=        is the same as    #define macro
     if test "x$OPENJDK_TARGET_OS" = xsolaris; then
       COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
     else
       COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
     fi
   else
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN"
   fi
   if test "x$OPENJDK_TARGET_OS" = xlinux; then
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DLINUX"
   fi
   if test "x$OPENJDK_TARGET_OS" = xwindows; then
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DWINDOWS"
   fi
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DSOLARIS"
   fi
   if test "x$OPENJDK_TARGET_OS" = xaix; then
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DAIX -DPPC64"
   fi
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMACOSX -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
     # Setting these parameters makes it an error to link to macosx APIs that are
     # newer than the given OS version and makes the linked binaries compatible even
     # if built on a newer version of the OS.
     # The expected format is X.Y.Z
     MACOSX_VERSION_MIN=10.7.0
     AC_SUBST(MACOSX_VERSION_MIN)
     # The macro takes the version with no dots, ex: 1070
     # Let the flags variables get resolved in make for easier override on make
     # command line.
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
     LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
   fi
   if test "x$OPENJDK_TARGET_OS" = xbsd; then
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DBSD -D_ALLBSD_SOURCE"
   fi
   if test "x$DEBUG_LEVEL" = xrelease; then
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG"
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED"
   fi
   else
     COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG"
   fi
   COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
   COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'"
   COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \
       -I${JDK_OUTPUTDIR}/include \
       -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \
       -I${JDK_TOPDIR}/src/share/javavm/export \
       -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \
       -I${JDK_TOPDIR}/src/share/native/common \
       -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common"
   # The shared libraries are compiled using the picflag.
   CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
   CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "
   # Executable flags
   CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
   CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
   # Now this is odd. The JDK native libraries have to link against libjvm.so
   # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
   # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
   # is identical for client and server? Yes. Which is picked at runtime (client or server)?
   # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
   # libraries will link to whatever is in memory. Yuck.
   #
   # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
   if test "x$COMPILER_NAME" = xcl; then
     LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
     if test "x$OPENJDK_TARGET_CPU" = xx86; then
       LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
     fi
     # TODO: make -debug optional "--disable-full-debug-symbols"
     LDFLAGS_JDK="$LDFLAGS_JDK -debug"
     LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib"
     LDFLAGS_JDKLIB_SUFFIX=""
     if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
       LDFLAGS_STACK_SIZE=1048576
     else
       LDFLAGS_STACK_SIZE=327680
     fi
     LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE"
   else
     if test "x$COMPILER_NAME" = xgcc; then
       # If this is a --hash-style=gnu system, use --hash-style=both, why?
       HAS_GNU_HASH=`$CC -dumpspecs 2>/dev/null | $GREP 'hash-style=gnu'`
       if test -n "$HAS_GNU_HASH"; then
         LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both "
       fi
       if test "x$OPENJDK_TARGET_OS" = xlinux; then
         # And since we now know that the linker is gnu, then add:
         #   -z defs, to forbid undefined symbols in object files
         #   -z noexecstack, to mark stack regions as non-executable
         LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs -Xlinker -z -Xlinker noexecstack"
         if test "x$DEBUG_LEVEL" = "xrelease"; then
           # When building release libraries, tell the linker optimize them.
           # Should this be supplied to the OSS linker as well?
           LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
         fi
       fi
     fi
     LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \
         -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}"
     # On some platforms (mac) the linker warns about non existing -L dirs.
     # Add server first if available. Linking aginst client does not always produce the same results.
     # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
     # Default to server for other variants.
     if test "x$JVM_VARIANT_SERVER" = xtrue; then
       LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
     elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
       LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client"
     elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
       LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
     else
       LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
     fi
     LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
     if test "x$COMPILER_NAME" = xossc; then
       LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
     fi
     LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
     if test "x$OPENJDK_TARGET_OS" = xlinux; then
       LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
     fi
   fi
   AC_SUBST(CFLAGS_JDKLIB)
   AC_SUBST(CFLAGS_JDKEXE)
   AC_SUBST(CXXFLAGS_JDKLIB)
   AC_SUBST(CXXFLAGS_JDKEXE)
   AC_SUBST(LDFLAGS_JDKLIB)
   AC_SUBST(LDFLAGS_JDKEXE)
   AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
   AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
   AC_SUBST(LDFLAGS_CXX_JDK)
 ])
 # TOOLCHAIN_C_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
 #                                      [RUN-IF-FALSE])
 # ------------------------------------------------------------
 # Check that the C compiler supports an argument
 AC_DEFUN([TOOLCHAIN_C_COMPILER_CHECK_ARGUMENTS],
 [
   AC_MSG_CHECKING([if the C compiler supports "$1"])
   supports=yes
   saved_cflags="$CFLAGS"
   CFLAGS="$CFLAGS $1"
   AC_LANG_PUSH([C])
   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
       [supports=no])
   AC_LANG_POP([C])
   CFLAGS="$saved_cflags"
   AC_MSG_RESULT([$supports])
   if test "x$supports" = "xyes" ; then
     m4_ifval([$2], [$2], [:])
   else
     m4_ifval([$3], [$3], [:])
   fi
 ])
 # TOOLCHAIN_CXX_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
 #                                        [RUN-IF-FALSE])
 # ------------------------------------------------------------
 # Check that the C++ compiler supports an argument
 AC_DEFUN([TOOLCHAIN_CXX_COMPILER_CHECK_ARGUMENTS],
 [
   AC_MSG_CHECKING([if the C++ compiler supports "$1"])
   supports=yes
   saved_cxxflags="$CXXFLAGS"
   CXXFLAGS="$CXXFLAG $1"
   AC_LANG_PUSH([C++])
   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
       [supports=no])
   AC_LANG_POP([C++])
   CXXFLAGS="$saved_cxxflags"
   AC_MSG_RESULT([$supports])
   if test "x$supports" = "xyes" ; then
     m4_ifval([$2], [$2], [:])
   else
     m4_ifval([$3], [$3], [:])
   fi
 ])
 # TOOLCHAIN_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
 #                                    [RUN-IF-FALSE])
 # ------------------------------------------------------------
 # Check that the C and C++ compilers support an argument
 AC_DEFUN([TOOLCHAIN_COMPILER_CHECK_ARGUMENTS],
 [
   TOOLCHAIN_C_COMPILER_CHECK_ARGUMENTS([$1],
   				       [C_COMP_SUPPORTS="yes"],
 				       [C_COMP_SUPPORTS="no"])
   TOOLCHAIN_CXX_COMPILER_CHECK_ARGUMENTS([$1],
   					 [CXX_COMP_SUPPORTS="yes"],
 					 [CXX_COMP_SUPPORTS="no"])
   AC_MSG_CHECKING([if both compilers support "$1"])
   supports=no
   if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
   AC_MSG_RESULT([$supports])
   if test "x$supports" = "xyes" ; then
     m4_ifval([$2], [$2], [:])
   else
     m4_ifval([$3], [$3], [:])
   fi
 ])
 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_MISC],
 [
   # Some Zero and Shark settings.
   # ZERO_ARCHFLAG tells the compiler which mode to build for
   case "${OPENJDK_TARGET_CPU}" in
     s390)
       ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
       ;;
     *)
       ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
   esac
   TOOLCHAIN_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])
   AC_SUBST(ZERO_ARCHFLAG)
   # Check that the compiler supports -mX (or -qX on AIX) flags
   # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
   TOOLCHAIN_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
       [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
       [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
   AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
   # Check for broken SuSE 'ld' for which 'Only anonymous version tag is allowed in executable.'
   USING_BROKEN_SUSE_LD=no
   if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$GCC" = xyes; then
     AC_MSG_CHECKING([for broken SuSE 'ld' which only understands anonymous version tags in executables])
     echo "SUNWprivate_1.1 { local: *; };" > version-script.map
     echo "int main() { }" > main.c
     if $CXX -Xlinker -version-script=version-script.map main.c 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then
       AC_MSG_RESULT(no)
       USING_BROKEN_SUSE_LD=no
     else
       AC_MSG_RESULT(yes)
       USING_BROKEN_SUSE_LD=yes
     fi
     rm -rf version-script.map main.c
   fi
   AC_SUBST(USING_BROKEN_SUSE_LD)
 ])
 # Setup the JTREG paths
 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_JTREG],
 [
   AC_ARG_WITH(jtreg, [AS_HELP_STRING([--with-jtreg],
       [Regression Test Harness @<:@probed@:>@])],
       [],
       [with_jtreg=no])
   if test "x$with_jtreg" = xno; then
     # jtreg disabled
     AC_MSG_CHECKING([for jtreg])
     AC_MSG_RESULT(no)
   else
     if test "x$with_jtreg" != xyes; then
       # with path specified.
       JT_HOME="$with_jtreg"
     fi
     if test "x$JT_HOME" != x; then
       AC_MSG_CHECKING([for jtreg])
       # use JT_HOME enviroment var.
       BASIC_FIXUP_PATH([JT_HOME])
       # jtreg win32 script works for everybody
       JTREGEXE="$JT_HOME/bin/jtreg"
       if test ! -f "$JTREGEXE"; then
         AC_MSG_ERROR([JTReg executable does not exist: $JTREGEXE])
       fi
       AC_MSG_RESULT($JTREGEXE)
     else
       # try to find jtreg on path
       BASIC_REQUIRE_PROGS(JTREGEXE, jtreg)
       JT_HOME="`$DIRNAME $JTREGEXE`"
     fi
   fi
   AC_SUBST(JT_HOME)
   AC_SUBST(JTREGEXE)
 ])
 AC_DEFUN_ONCE([TOOLCHAIN_SETUP_GCC6_COMPILER_FLAGS],
 [
   # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
   # runs afoul of the more aggressive versions of these optimisations.
   # Notably, value range propagation now assumes that the this pointer of C++
   # member functions is non-null.
   NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
   TOOLCHAIN_COMPILER_CHECK_ARGUMENTS([$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],
   				     [], [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])
   AC_SUBST([NO_DELETE_NULL_POINTER_CHECKS_CFLAG])
   NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
   TOOLCHAIN_COMPILER_CHECK_ARGUMENTS([$NO_LIFETIME_DSE_CFLAG -Werror],
   				     [], [NO_LIFETIME_DSE_CFLAG=""])
   CFLAGS_JDK="${CFLAGS_JDK} ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
   AC_SUBST([NO_LIFETIME_DSE_CFLAG])
 ])

Mercurial > jdk8-mips64-public / annotate

common/autoconf/toolchain.m4@0e87966d7ff1 (annotated)

common/autoconf/toolchain.m4