WL#3834: New build script for system admins and developers

especially for MySQL Cluster Carrier Grade Edition


BUILD/build_mccge.sh:
  BitKeeper file /home/mikael/mysql_clones/mysql-5.1-engines/BUILD/build_mccge.sh
BUILD/check-cpu:
  Added comments
  Added support for Core 2 cpu's
  Fixed some bad styles for scripts
  Fixed some copy-paste bug
  Added support for i386 from Mac OS X
  Added support for Itanium
  Added support for Sparc
  Added support for GCC 4.2+
  Fixed some issues with later change of cpu_arg
  Removed some broken, unnecessarily complex parts
  to find native compiler flags

BUILD/build_mccge.sh

+#!/bin/sh
+
+die()
+{
+  echo "ERROR: $@"; exit 1;
+}
+
+get_key_value()
+{
+  echo "$1" | sed 's/^--[a-zA-Z_-]*=//'
+}
+
+developer_usage()
+{
+cat <<EOF
+
+  This script can be used by developers of MySQL, early adopters wanting 
+  to try out early versions of MySQL before binary versions are 
+  available, anyone needing a version with a special patch included that 
+  needs to be built from source code, or anyone else wanting to exercise 
+  full control over the MySQL build process.
+
+  This help text is targeted towards those that want to debug and test 
+  MySQL using source code releases. If you have downloaded a source code 
+  release and simply want to build a usable binary, you should read the 
+  --sysadmin-help instead.
+
+  The script is also designed to be used by anyone receiving a source 
+  code release of MySQL Cluster Carrier Grade Edition. The default
+  behaviour is to build the standard MySQL Cluster Carrier Grade Edition
+  package. Three environment variables can be used to change the 
+  default behaviour:
+
+  MYSQL_DEVELOPER
+    Defining this variable is similar to setting the --developer flag
+  MYSQL_DEVELOPER_PACKAGE=package
+    Defining this variable is similar to setting the --package=* 
+    variable
+  MYSQL_DEVELOPER_DEBUG
+    Defining this variable sets the --with-debug flag
+
+  Options used with this script always override any default behaviour. 
+  The default package is MySQL Cluster Carrier Grade (standard) Edition. 
+  For developers, the default package is MySQL Cluster Carrier Grade 
+  Extended Edition, and the default build behaviour is to build with
+  autotools. If you want to skip autotools and start from a source code
+  release you can use the --no-autotools flag.
+
+  More information for developers can be found in --help, 
+  --sysadmin-help, and --extended-help.
+
+  The most common usage for developers is to set the three variables 
+  mentioned previously and then simply to run the script without any 
+  additional parameters, using them only when needing to change some 
+  things like not requiring debug build. If some of these environment 
+  variables have already been set, you can use the corresponding options 
+  to unset them and reverse their effects.
+EOF
+}
+
+sysadmin_usage()
+{
+cat <<EOF
+
+  This script can be used to build MySQL Cluster Carrier Grade Edition
+  based on a source code release you received from MySQL.
+
+  It is assumed that you are building on a computer which is of the 
+  same type as that on which you intend to run MySQL Cluster.
+
+  The simplest possible way to run this script is to allow it to use the 
+  built-in defaults everywhere, invoking it simply as:
+
+  shell> ./build_mccge.sh
+
+  This performs the following operations:
+    1) Detects the operating system. Currently, Linux, FreeBSD, Solaris 
+      10/11, and Mac OS X are supported by this script.
+    2) Detect the type of CPU being used. Currently supported processors 
+      are: x86 for all supported operating systems, Itanium for Linux 
+      with GCC, and SPARC for Solaris using the Forte compiler.
+    3) Invokes the GCC compiler.
+    4) Builds a set of MySQL Cluster Carrier Grade Edition binaries; for
+      more information about these, see --extended-help.
+  
+  The default version assumes that you have a source code tarball from 
+  which you are building, and thus autoconf and automake do not need to 
+  be run. If you have downloaded a BitKeeper tree then you should read 
+  --developer-help.
+
+  If you are building MySQL Cluster Carrier Grade Edition for commercial 
+  use then you need to set the --commercial flag to ensure that the 
+  commercial libraries are compiled in, rather than the GPL-only 
+  libraries. The default is to build a GPL version of MySQL Cluster 
+  Carrier Grade Edition.
+
+  If your building on a Solaris SPARC machine you must set 
+  --compiler=forte; if you want to build using the Intel compiler on 
+  Linux, you need to set --compiler=icc.
+
+  If you want to make sure that a 64-bit version is built then you 
+  should add the flag --64. This is always set on Solaris machines and 
+  when check-cpu is able to discover that a 64-bit CPU is being used. If 
+  you want to ensure that a 32-bit binary is produced, use --32 instead.
+
+  If you need the binaries to be installed in a different location from 
+  /usr/local/mysql, then you should set --prefix to point to where you
+  want the binaries installed.
+
+  Using a data directory other than the default (PREFIX/data) can be 
+  done when starting the MySQL Server, or by invoking this script with 
+  the --datadir option.
+
+  If you want your binaries stripped of surplus debug or other 
+  information, use the --strip option.
+
+  If you want debug information in the binary (for example, to be
+  able to send gdb core dumps to MySQL Support), then you should add the 
+  flag --with-debug; if you want a production build with only debugging 
+  information in the binary then use --debug.
+
+  If your aim is not to build MySQL Cluster Carrier Grade Edition, you 
+  can also use this script to build MySQL Classic and MySQL Pro 
+  versions; see the --extended-help for descriptions of these packages.
+EOF
+}
+
+usage()
+{
+cat <<EOF
+
+Usage: $0 [options]
+  --help                  Show this help message.
+  --sysadmin-help         Show help for system administrators wishing 
+                          to build MySQL Cluster Carrier Grade Edition
+  --developer-help        Show help for developers trying to build MySQL
+  --with-help             Show extended help on --with-xxx options to 
+                          configure
+  --extended-help         Show extended help message
+  --without-debug         Build non-debug version
+  --with-debug            Build debug version
+  --with-debug=full       Build with full debug.
+  --configure-only        Stop after running configure.
+  --use-autotools         Start by running autoconf, automake,.. tools
+  --no-autotools          Start from configure
+  --print-only            Print commands that the script will execute, 
+                          but do not actually execute
+  --prefix=path           Build with prefix 'path'
+  --datadir=path          Build with data directory set to non-standard 
+                          'path'
+  --debug                 Build normal version, but add debug 
+                          information to binary
+  --developer             Use extensions that most MySQL developers use
+  --no-developer          Do not use extensions that most developers of 
+                          MySQL use
+  --commercial            Use commercial libraries
+  --gpl                   Use gpl libraries
+  --compiler=[gcc|icc|forte]                  Select compiler
+  --cpu=[x86|x86_64|sparc]                    Select CPU type
+                          x86 => 32-bit binary
+                          x86_64 => 64 bit binary unless Mac OS X
+  --warning-mode=[extra|pedantic|normal|no]   Set warning mode level
+  --warnings              Set warning mode to normal
+  --32                    Build a 32-bit binary even if CPU is 64-bit
+  --64                    Build a 64-bit binary even if not sure a
+                          64-bit CPU is being used
+  --package=[cge|extended|pro|classic]        Select package to build
+  --parallelism=number    Define parallelism in make
+  --strip                 Strip binaries
+  --error-inject          Enable error injection into MySQL Server and 
+                          data nodes
+  --valgrind              Build with valgrind
+  --fast                  Optimise for CPU architecture buildt on
+  --static-linking        Statically link system libraries into binaries
+  --with-flags *          Pass extra --with-xxx options to configure
+EOF
+  if test "x$1" != "x" ; then
+    echo "Failure Message: $1"
+  fi
+}
+
+extended_usage()
+{
+  cat <<EOF
+
+  Extended help text for this script:
+  -----------------------------------
+  This script is intended to make it easier for customers using MySQL
+  Cluster Carrier Grade Edition to build the product from source on 
+  these platforms/compilers: Linux/x86 (32-bit and 64-bit),
+  Solaris 10 and 11/x86/gcc, Solaris 9/Sparc/Forte, and MacOSX/x86/gcc. 
+  The script automatically detects CPU type and operating system; in 
+  most cases this also determines which compiler to use, the exception 
+  being Linux/x86 where you can choose between gcc and icc (gcc is the
+  default).
+
+  To build on other platforms you can use the --print-only option on a
+  supported platform and edit the output for a proper set of commands on
+  the specific platform you are using. MySQL also provides custom builds
+  for any type of platform that is officially supported for MySQL
+  Cluster. For a list of supported platforms, see
+  http://www.mysql.com/support/supportedplatforms/cluster.html.
+
+  Using the --package option, it is also possible to build a "classic"
+  version of MySQL having only the MyISAM storage engine, a "Pro"
+  package including all storage engines and other features except MySQL
+  Cluster, and an "extended" package including these features plus MySQL
+  Cluster (this is the default if the --developer option is used).
+
+  Different MySQL storage engines are included in the build, depending
+  on which --package option is used. The comment and version strong
+  suffix are also set according to the package selected.
+
+  --package=cge
+    storage engines:
+      ARCHIVE, BLACKHOLE, CSV, EXAMPLE, FEDERATED, MYISAM, NDB
+      (All storage engines except InnoDB)
+    comment: MySQL Cluster Carrier Grade Edition GPL/Commercial version 
+             built from source
+    version string suffix: -cge
+
+  --package=extended
+    storage engines:
+      ARCHIVE, BLACKHOLE, CSV, EXAMPLE, FEDERATED, MYISAM, INNODB, NDB
+      (All storage engines)
+    comment: MySQL Cluster Carrier Grade Extended Edition GPL/Commercial 
+             version built from source
+    version string suffix: -cge-extended
+
+  --package=pro
+    storage engines:
+      ARCHIVE, BLACKHOLE, CSV, EXAMPLE, FEDERATED, INNODB, MYISAM
+      (All storage engines except NDB)
+    comment: MySQL Pro GPL/Commercial version built from 
+             source
+    version string suffix: [none]
+
+  --package=classic
+    storage engines: CSV, MYISAM
+    comment: MySQL Classic GPL/Commercial version built 
+             from source
+    version string suffix: [none]
+
+  All packages except Classic include support for user-defined
+  partitioning.
+
+  If --with-debug is used, an additional "-debug" is appended to the
+  version string.
+
+  --commercial
+    This flag prevents the use of GPL libraries which cannot be used
+    under a commercial license, such as the readline library.
+
+  --with-debug[=full]
+    This option will ensure that the version is built with debug
+    information enabled; the optimisation level is decreased to -O.
+
+  --developer
+    This option changes a number of things to make the version built
+    more appropriate to the debugging and testing needs of developers. 
+    It changes the default package to "extended". It also changes the 
+    default warning mode from "none" to "normal", which allows an 
+    extensive list of warnings to be generated.
+
+  --error-inject
+    This flag is used only when the --developer option is also used, and
+    enables error injection in both the MySQL Server and in MySQL
+    Cluster data nodes.
+
+  The following is a list of the default configure options used for all
+  packages:
+
+  --prefix: /usr/local/mysql (can be overridden)
+
+  --libexecdir: <prefix>/bin (can be overridden)
+
+  --localstatedir: <prefix>/data, unless --datadir is used, in which
+    case it defaults to <datadir>/data (can be overridden by setting
+    --localstatedir explicitly).
+
+  --enable-local-infile: Enable use of the LOAD DATA FROM  LOCAL INFILE
+    command (cannot be overridden).
+
+  --enable-thread-safe-client: Enable the multi-threaded mysql client
+    library (cannot be overridden).
+
+  --with-big-tables: Enable use of tables with more than 4G rows (cannot
+    be overridden).
+
+  --with-extra-charsets=all: Enable use of all character sets supported
+    by MySQL (cannot be overridden).
+
+  --with-ssl: Enable use of yaSSL library included in the MySQL source
+    (cannot be overridden).
+
+  --with-pic: Build all binaries using position independent assembler
+    to avoid problems with dynamic linkers (cannot be overridden).
+
+  --with-csv-storage-engine: Ensure that the CSV storage engine is
+    included in all builds. Since CSV is required for log tables in
+    MySQL 5.1, this option cannot be overridden.
+
+    (Note that MyISAM support is always built into the MySQL Server; the
+    server *cannot* be built without MyISAM.)
+
+  --with-mysqld-ldflags=-static
+  --with-client-ldflags=-static
+    Ensures that binaries for, respectively, the MySQL server and client
+    are built with static libraries except for the system libraries,
+    which use dynamically loaded libraries provided by the operating
+    system. Building with --developer sets these to all-static instead, 
+    to build everything statically.
+
+  In addition there are some configure options that are specific to
+  Linux operating systems:
+
+  --with-fast-mutexes
+    Include an alternative implementation of mutexes that is faster on
+    Linux systems
+
+  --enable-assembler
+    Include assembler code optimisations for a number of mostly string
+    methods. Used for x86 processors only.
+
+  Neither of the preceding options can be disabled.
+
+  MySQL Cluster Carrier Grade edition also adds the following options
+  (also used by the extended package):
+
+  --with-ndbcluster
+    Include the NDB Cluster storage engine, its kernel, management
+    server, and client, as well as support for the NDB and MGM APIs.
+
+  --without-ndb-debug
+    Do not include specific NDB debug code, not even in debug versions
+    (cannot be overridden).
+
+  Package-specific options:
+  -------------------------
+  --with-innodb
+    Specifically included in the "pro" and "extended" packages, and not 
+    in any of the others.
+
+  --with-comment
+    Sets the comment for the MySQL version, by package, as described
+    above.
+
+  --with-server-suffix
+    Sets the server suffix on the MySQL version, by package, as
+    described above.
+
+  Other options used:
+  -------------------
+  --with-readline
+    Use the GPL readline library for command editing functions; not
+    available with commercial packages.
+
+  --with-libedit
+    Use the BSD licensed library for command editing functions; used for
+    commercial packages.
+
+  --with-zlib-dir=bundled
+    Use the zlib package bundled with MySQL.
+
+  --with-mysqld-libs=-lmtmalloc
+    Used on Solaris to ensure that the proper malloc library is used.
+
+  Compiler options:
+  -----------------
+
+  This section describes the compiler options for each of the different
+  platforms supported by thisscript.
+
+  The --fast option adds -mtune=cpu_arg to the C/C++ flags (provides
+  support for Nocona, K8, and other processors).
+
+  Use of the --debug option adds -g to the C/C++ flags.
+
+  FreeBSD/x86/gcc
+  ---------------
+    No flags are used. Instead, configure determines the proper flags to 
+    use.
+
+  Linux/x86+Itanium/gcc
+  -------------
+    No flags are used. Instead the configure script determines the
+    proper flags to use for both normal and debug builds. Discovery of a
+    Nocona or Core 2 Duo CPU causes a 64-bit binary to be built;
+    otherwise, the binary is 32-bit. To build a 64-bit binary, -m64 is
+    added to the C/C++ flags. (To build a 32-bit binary on a 64-bit CPU,
+    use the --32 option as described previously.)
+
+  Linux/x86+Itanium/icc
+  -------------
+    Flags used:
+    CC  = icc -static-libgcc -static-libcxa -i-static
+    C++ = icpc -static-libgcc -static-libcxa -i-static
+    C/C++ flags = -mp -restrict
+
+    On Itanium we also add -no-ftz and -no-prefetch to CC and C++ flags.
+
+  The non-debug versions also add the following:
+    C/C++ flags += -O3 unroll2 -ip
+
+  The fast version adds:
+    C/C++ flags += -ipo
+
+  On discovery of a Core 2 Duo architecture while using icc, -xT is also 
+  added to the C/C++ flags; this provides optimisations specific to Core 
+  2 Duo. This is added only when the --fast flag is set.
+
+  Solaris/x86/gcc
+  ---------------
+    All builds on Solaris are 64-bit, so -m64 is always used in the
+    C/C++ flags. LDFLAGS is set to -m64 -static-libgcc -O/-O2.
+
+  Solaris/Sparc/Forte
+  -------------------
+    Uses cc-5.0 as CC
+    Sets ASFLAGS=LDFLAGS=xarch=v9, so that we compile Sparc v9 binaries
+    C flags   = -Xa -strconst -xc99=none
+    C++ flags = -noex
+    C/C++ flags = -mt -D_FORTEC -xarch=v9
+
+    For non-debug builds, the following flags are also used:
+
+    C/C++ flags = -xO3
+
+  MacOSX/x86/gcc
+  --------------
+  C/C++ flags include -fno-common -arch i386.
+
+  Non-debug versions also add -Os -felide-constructors, where "-Os"
+  means the build is space-optimised as long as the space optimisations
+  do not negatively affect performance. Debug versions use -O.
+EOF
+}
+with_usage()
+{
+  cat <<EOF
+
+  To obtain extended help on the --with-* options available, run this
+  script with --configure-only to create a configuration file. Then
+  issue the command ./configure --help to get an extensive list of
+  possible configure options.
+
+  The remainder of this text focuses on those options which are useful
+  in building binaries for MySQL Cluster Carrier Grade Edition.
+
+  --with-ndb-sci=/opt/DIS
+    Used to build a MySQL Cluster Carrier Grade Edition that can use the
+    SCI Transporter. The Dolphin SCI installation must be completed
+    first (see 
+    http://dev.mysql.com/doc/refman/5.1/en/mysql-cluster-interconnects.html
+    for more information).
+
+  --with-ndb-test
+    Compile the MySQL Cluster test programs.
+
+  --with-ndb-port=PORT
+    Change the default port for the MySQL Cluster management server.
+
+  --with-ndb-port-base=PORT
+    Change the default port base for MySQL Cluster data nodes.
+
+  --without-query-cache
+    Build the MySQL Server without the query cache, which is often not
+    of value in MySQL Cluster applications.
+
+  --with-atomic-ops=rwlocks|smp|up
+                          Implement atomic operations using pthread
+                          rwlocks or atomic CPU instructions for
+                          multi-processor (default) or single-processor
+                          configurations.
+
+  --without-geometry      Do not build geometry-related portions of the
+                          MySQL Server. Seldom used in MySQL Cluster
+                          applications.
+
+  --with-ndb-cc-flags=FLAGS
+    This option can be used to build MySQL Cluster with error injection
+    on the data nodes. It can be used to pass special options to
+    programs in the NDB kernel for special test builds.
+    The option for enabling data node error injection is -DERROR_INSERT.
+EOF
+}
+
+parse_package()
+{
+  case "$package" in
+    classic )
+      package="classic"
+      ;;
+    pro )
+      package="pro"
+      ;;
+    extended )
+      package=""
+      ;;
+    cge )
+      package="cge"
+      ;;
+    *)
+      echo "Unknown package '$package'"
+      exit 1
+      ;;
+  esac
+}
+
+parse_warning_mode()
+{
+  case "$warning_mode" in
+    pedantic )
+      warning_mode="pedantic"
+      ;;
+    extra_warnings | extra-warnings | extra )
+      warning_mode="extra"
+      ;;
+    no )
+      warning_mode=
+      ;;
+    normal )
+      warning_mode="normal"
+      ;;
+    *)
+      echo "Unknown warning mode '$warning_mode'"
+      exit 1
+      ;;
+  esac
+}
+
+#
+# We currently only support x86, Itanium and UltraSparc processors.
+#
+parse_cpu_type()
+{
+  case "$cpu_type" in
+    x86 )
+      cpu_type="x86"
+      m32="yes"
+      ;;
+    x86_64 )
+      cpu_type="x86"
+      m64="yes"
+      ;;
+    itanium )
+      cpu_type="itanium"
+      ;;
+    sparc )
+      cpu_type="sparc"
+      ;;
+    * )
+      echo "Unknown CPU type $cpu_type"
+      exit 1
+      ;;
+  esac
+  return
+}
+
+#
+# We currently only support gcc, icc and Forte.
+#
+parse_compiler()
+{
+  case "$compiler" in
+    gcc )
+      compiler="gcc"
+      ;;
+    icc )
+      compiler="icc"
+      ;;
+    forte )
+      compiler="forte"
+      ;;
+    *)
+      echo "Unknown compiler '$compiler'"
+      exit 1
+      ;;
+  esac
+}
+
+parse_options()
+{
+  while test $# -gt 0
+  do
+    case "$1" in
+    --prefix=*)
+      prefix=`get_key_value "$1"`
+      ;;
+    --datadir=*)
+      datadir=`get_key_value "$1"`
+      ;;
+    --with-debug=full)
+      full_debug="=full"
+      with_debug_flag="yes"
+      fast_flag="no"
+      ;;
+    --without-debug)
+      with_debug_flag="no"
+      if test "x$fast_flag" != "xyes" ; then
+        fast_flag="generic"
+      fi
+      ;;
+    --with-debug)
+      with_debug_flag="yes"
+      fast_flag="no"
+      ;;
+    --debug)
+      compile_debug_flag="yes"
+      ;;
+    --no-developer)
+      developer_flag="no"
+      ;;
+    --developer)
+      developer_flag="yes"
+      ;;
+    --commercial)
+      gpl="no"
+      ;;
+    --gpl)
+      gpl="yes"
+      ;;
+    --compiler=*)
+      compiler=`get_key_value "$1"`
+      parse_compiler
+      ;;
+    --cpu=*)
+      cpu_type=`get_key_value "$1"`
+      parse_cpu_type
+      ;;
+    --warning-mode=*)
+      warning_mode=`get_key_value "$1"`
+      parse_warning_mode
+      ;;
+    --warnings)
+      warning_mode="normal"
+      ;;
+    --32)
+      if test "x$m64" != "x" ; then
+        echo "Cannot set both --32 and --64"
+        exit 1
+      fi
+      m32="yes"
+      ;;
+    --64)
+      if test "x$m32" != "x" ; then
+        echo "Cannot set both --32 and --64"
+        exit 1
+      fi
+      m64="yes"
+      ;;
+    --package=*)
+      package=`get_key_value "$1"`
+      parse_package
+      ;;
+    --parallelism=*)
+      parallelism=`get_key_value "$1"`
+      ;;
+    --use-autotools)
+      use_autotools="yes"
+      ;;
+    --no-autotools)
+      use_autotools="no"
+      ;;
+    --configure-only)
+      just_configure="yes"
+      ;;
+    --print-only)
+      just_print="yes"
+      ;;
+    --static-linking)
+      static_linking_flag="yes"
+      ;;
+    --strip)
+      strip_flag="yes"
+      ;;
+    --error-inject)
+      error_inject_flag="yes"
+      ;;
+    --valgrind)
+      valgrind="yes"
+      ;;
+    --fast)
+      fast_flag="yes"
+      ;;
+    --with-flags)
+      shift
+      break
+      ;;
+    --with-help)
+      with_usage
+      exit 0
+      ;;
+    --sysadmin-help)
+      sysadmin_usage
+      exit 0
+      ;;
+    --developer-help)
+      developer_usage
+      exit 0
+      ;;
+    --extended-help)
+      extended_usage
+      exit 0
+      ;;
+    --help)
+      usage
+      exit 0
+      ;;
+    *)
+      echo "Unknown option '$1'"
+      exit 1
+      ;;
+    esac
+    shift
+  done
+  for flag in $@
+  do
+    with_flags="$with_flags $flag"
+  done
+}
+
+#
+# We currently only support Linux, FreeBSD/OpenBSD, Mac OS X and Solaris
+#
+check_os()
+{
+  case "`uname -s`" in
+    Linux)
+      os="linux"
+      ;;
+    FreeBSD|OpenBSD)
+      os="bsd"
+      ;;
+    Darwin)
+      os="MacOSX"
+      ;;
+    SunOS)
+      os="Solaris"
+      ;;
+    *)
+      os="Unknown"
+      ;;
+  esac
+
+}
+
+set_cpu_base()
+{
+  if test "x$cpu_type" = "x" ; then
+    if test "x$cpu_arg" = "x" ; then
+      usage "CPU type not discovered, cannot proceed"
+      return 1
+    fi
+    case "$cpu_arg" in
+      core2 | nocona | prescott | pentium* | i*86 )
+        cpu_base_type="x86"
+        ;;
+      athlon* | opteron* )
+        cpu_base_type="x86"
+        ;;
+      sparc )
+        cpu_base_type="sparc"
+        ;;
+      itanium )
+        cpu_base_type="itanium"
+        ;;
+      * )
+        usage "CPU type $cpu_arg not handled by this script"
+        exit 1
+        ;;
+    esac
+  else
+    cpu_base_type="$cpu_type"
+    check_cpu_cflags=""
+  fi
+  if test "x$os" = "xMacOSX" ; then
+    m64="no"
+  elif test "x$os" = "xSolaris" ; then
+    m64="yes"
+  elif test "x$m32" = "x" ; then
+    if test "x$cpu_arg" = "xnocona" || test "x$cpu_arg" = "xcore2" || \
+       test "x$cpu_arg" = "xathlon64" || test "x$cpu_arg" = "xopteron" ; then
+      m64="yes"
+    elif test "x$m64" != "xyes" ; then
+      m64="no"
+    fi
+  else
+    m64="no"
+  fi
+  echo "Discovered CPU of type $cpu_base_type ($cpu_arg) on $os"
+  if test "x$m64" = "xyes" ; then
+    echo "Will compile 64-bit binaries"
+  else
+    echo "Will compile 32-bit binaries"
+  fi
+  return 0
+}
+
+#
+# Add to the variable commands with the configure command
+# 
+init_configure_commands()
+{
+  cflags="$c_warnings $base_cflags $compiler_flags"
+  cxxflags="$cxx_warnings $base_cxxflags $compiler_flags"
+  configure="./configure $base_configs $with_flags"
+
+  commands="$commands
+    CC=\"$CC\" CFLAGS=\"$cflags\" CXX=\"$CXX\" CXXFLAGS=\"$cxxflags\""
+  if test "x$LDFLAGS" != "x" ; then
+    commands="$commands
+      LDFLAGS=\"$LDFLAGS\""
+  fi
+  if test "x$ASFLAGS" != "x" ; then
+    commands="$commands
+      ASFLAGS=\"$ASFLAGS\""
+  fi
+  commands="$commands
+    $configure"
+} 
+
+#
+# Initialise the variable commands with the commands needed to generate
+# the configure script.
+#
+init_auto_commands()
+{
+  set_libtoolize_version
+  commands="\
+  $make -k maintainer-clean || true
+  /bin/rm -rf */.deps/*.P configure config.cache
+  /bin/rm -rf  storage/*/configure storage/*/config.cache autom4te.cache
+  /bin/rm -rf storage/*/autom4te.cache;"
+#
+# --add-missing instructs automake to install missing auxiliary files
+# and --force to overwrite them if they already exist
+#
+  commands="$commands
+  aclocal || die \"Can't execute aclocal\"
+  autoheader || die \"Can't execute autoheader\"
+  $LIBTOOLIZE --automake --copy --force || die \"Can't execute libtoolize\"
+  automake --add-missing --copy --force || die \"Can't execute automake\"
+  autoconf || die \"Can't execute autoconf\""
+}
+
+#
+# Add to the variable commands the make command and possibly also
+# strip commands
+#
+add_make_commands()
+{
+  AM_MAKEFLAGS="-j $parallelism"
+  commands="$commands
+  $make $AM_MAKEFLAGS"
+
+  if test "x$strip_flag" = "xyes" ; then
+    commands="$commands
+    mkdir -p tmp
+    nm --numeric-sort sql/mysqld  > tmp/mysqld.sym
+    objdump -d sql/mysqld > tmp/mysqld.S
+    strip sql/mysqld
+    strip storage/ndb/src/kernel/ndbd
+    strip storage/ndb/src/mgmsrv/ndb_mgmd
+    strip storage/ndb/src/mgmclient/ndb_mgm"
+  fi
+}
+
+#
+# Set make version, but only gmake is supported :)
+#
+set_make_version()
+{
+  if gmake --version > /dev/null 2>&1
+  then
+    make=gmake
+  else
+    make=make
+  fi
+  if test "x`$make --version | grep GNU`" = "x" ; then
+    die "Only gmake is supported"
+  fi
+}
+
+#
+# Find a libtoolize binary, both libtoolize and glibtoolize are
+# ok, use first found.
+#
+set_libtoolize_version()
+{
+  LIBTOOLIZE=not_found
+  save_ifs="$IFS"; IFS=':'
+  for dir in $PATH
+  do
+    if test -x $dir/libtoolize
+    then
+      LIBTOOLIZE=libtoolize
+      echo "Found libtoolize in $dir"
+      break
+    fi
+    if test -x $dir/glibtoolize
+    then
+      LIBTOOLIZE=glibtoolize
+      echo "Found glibtoolize in $dir"
+      break
+    fi
+  done
+  IFS="$save_ifs"
+  if test "x$LIBTOOLIZE" = "xnot_found" ; then
+    die "Found no libtoolize version, quitting here"
+  fi
+  return
+}
+
+#
+# If ccache (a compiler cache which reduces build time)
+# (http://samba.org/ccache) is installed, use it.
+# We use 'grep' and hope that 'grep' works as expected
+# (returns 0 if finds lines)
+# We do not use ccache when gcov is used. Also only when
+# gcc is used.
+#
+set_up_ccache()
+{
+  if test "x$compiler" = "xgcc" ; then
+    if ccache -V > /dev/null 2>&1 && test "$USING_GCOV" != "1"
+    then
+      echo "$CC" | grep "ccache" > /dev/null || CC="ccache $CC"
+      echo "$CXX" | grep "ccache" > /dev/null || CXX="ccache $CXX"
+    fi
+  fi
+}
+
+#
+# Set flags for various build configurations.
+# Used in -valgrind builds
+#
+set_valgrind_flags()
+{
+  if test "x$valgrind_flag" = "xyes" ; then
+    loc_valgrind_flags="-USAFEMALLOC -UFORCE_INIT_OF_VARS -DHAVE_purify "
+    loc_valgrind_flags="$loc_valgrind_flags -DMYSQL_SERVER_SUFFIX=-valgrind-max"
+    compiler_flags="$compiler_flags $loc_valgrind_flags"
+  fi
+}
+
+#
+# Set up warnings; default is to use no warnings, but if warning_mode
+# is used a lot of warning flags are set up. These flags are valid only
+# for gcc, so for other compilers we ignore the warning_mode.
+#
+set_warning_flags()
+{
+  if test "x$developer_flag" = "xyes" && test "x$warning_mode" = "x" ; then
+    warning_mode="normal"
+  fi
+  if test "x$compiler" = "xgcc" ; then
+    if test "x$warning_mode" = "normal" || test "x$warning_mode" = "extra" ; then
+# Both C and C++ warnings
+      warnings="$warnings -Wimplicit -Wreturn-type -Wswitch -Wtrigraphs"
+      warnings="$warnings -Wcomment -W"
+      warnings="$warnings -Wchar-subscripts -Wformat -Wparentheses -Wsign-compare"
+      warnings="$warnings -Wwrite-strings -Wunused-function -Wunused-label"
+      warnings="$warnings -Wunused-value -Wunused-variable"
+
+      if test "x$warning_mode" = "extra" ; then
+        warnings="$warnings -Wshadow"
+      fi
+# C warnings
+      c_warnings="$warnings -Wunused-parameter"
+# C++ warnings
+      cxx_warnings="$warnings -Woverloaded-virtual -Wsign-promo -Wreorder"
+      cxx_warnings="$warnings -Wctor-dtor-privacy -Wnon-virtual-dtor"
+# Added unless --with-debug=full
+      if test "x$full_debug" = "x" ; then
+        compiler_flags="$compiler_flags -Wuninitialized"
+      fi
+    elif test "x$warning_mode" = "xpedantic" ; then
+      warnings="-W -Wall -ansi -pedantic -Wno-long-long -D_POSIX_SOURCE"
+      c_warnings="$warnings"
+      cxx_warnings="$warnings -std=c++98"
+# Reset CPU flags (-mtune), they don't work in -pedantic mode
+     check_cpu_cflags=""
+    fi
+  fi
+}
+
+#
+# Used in -debug builds
+#
+set_with_debug_flags()
+{
+  if test "x$with_debug_flag" = "xyes" ; then
+    if test "x$developer_flag" = "xyes" ; then
+      loc_debug_flags="-DUNIV_MUST_NOT_INLINE -DEXTRA_DEBUG -DFORCE_INIT_OF_VARS "
+      loc_debug_flags="$loc_debug_cflags -DSAFEMALLOC -DPEDANTIC_SAFEMALLOC"
+      compiler_flags="$compiler_flags $loc_debug_flags"
+    fi
+  fi
+}
+
+#
+# Flag for optimizing builds for developers.
+#
+set_no_omit_frame_pointer_for_developers()
+{
+  if test "x$fast_flag" != "xno" ; then
+    if test "x$developer_flag" = "xyes" && test "x$compiler" = "xgcc" ; then
+# Be as fast as we can be without losing our ability to backtrace.
+      compiler_flags="$compiler_flags -fno-omit-frame-pointer"
+    fi
+  fi
+}
+
+#
+# Add -g to all builds that requested debug information in build
+#
+set_debug_flag()
+{
+  if test "x$compile_debug_flags" = "xyes" ; then
+    compiler_flags="$compiler_flags -g"
+  fi
+}
+
+#
+# Base options used by all packages
+#
+# SSL library to use. --with-ssl selects the bundled yaSSL
+# implementation of SSL. To use openSSL, you must point out the location
+# of the openSSL headers and libs on your system.
+# For example: --with-ssl=/usr
+#
+set_base_configs()
+{
+  base_configs="$base_configs --prefix=$prefix"
+  base_configs="$base_configs --libexecdir=$prefix/bin"
+  base_configs="$base_configs --with-zlib-dir=bundled"
+  if test "x$datadir" = "x" ; then
+    base_configs="$base_configs --localstatedir=$prefix/data"
+  else
+    base_configs="$base_configs --localstatedir=$datadir"
+  fi
+  if test "x$with_debug_flag" = "xyes" ; then
+    base_configs="$base_configs --with-debug$full_debug"
+  fi
+  base_configs="$base_configs --enable-local-infile"
+  base_configs="$base_configs --enable-thread-safe-client"
+  base_configs="$base_configs --with-big-tables"
+  base_configs="$base_configs --with-extra-charsets=all"
+  base_configs="$base_configs --with-ssl"
+  base_configs="$base_configs --with-pic"
+  base_configs="$base_configs --with-csv-storage-engine"
+}
+
+#
+# Add all standard engines and partitioning (included as part of MySQL
+# Cluster storage engine as well) as part of MySQL Server. These are 
+# added in all packages except the classic package.
+#
+set_base_engines()
+{
+  engine_configs="$engine_configs --with-archive-storage-engine"
+  engine_configs="$engine_configs --with-blackhole-storage-engine"
+  engine_configs="$engine_configs --with-example-storage-engine"
+  engine_configs="$engine_configs --with-federated-storage-engine"
+  engine_configs="$engine_configs --with-partition"
+}
+
+set_pro_package()
+{
+  base_configs="$base_configs $engine_configs"
+  base_configs="$base_configs --with-innodb"
+  base_configs="$base_configs --with-comment=\"MySQL Pro $version_text built from source\""
+  if test "x$with_debug_flag" = "xyes" ; then
+    base_configs="$base_configs --with-server-suffix=\"-debug\""
+  fi
+}
+
+set_cge_extended_package()
+{
+  if test "x$gpl" = "xno" ; then
+    echo "Cannot build Extended Carrier Grade Edition as Commercial version"
+  fi
+  base_configs="$base_configs --with-ndbcluster"
+  base_configs="$base_configs --without-ndb-debug"
+  base_configs="$base_configs $engine_configs"
+  base_configs="$base_configs --with-innodb"
+  base_configs="$base_configs --with-comment=\"MySQL Cluster Carrier Grade Extended Edition $version_text built from source\""
+  if test "x$with_debug_flag" = "xyes" ; then
+    base_configs="$base_configs --with-server-suffix=\"-cge-extended-debug\""
+  else
+    base_configs="$base_configs --with-server-suffix=\"-cge-extended"\"
+  fi
+}
+
+set_cge_package()
+{
+  base_configs="$base_configs --with-ndbcluster"
+  base_configs="$base_configs --without-ndb-debug"
+  base_configs="$base_configs $engine_configs"
+  base_configs="$base_configs --with-comment=\"MySQL Cluster Carrier Grade Edition $version_text built from source\""
+  if test "x$with_debug_flag" = "xyes" ; then
+    base_configs="$base_configs --with-server-suffix=\"-cge-debug\""
+  else
+    base_configs="$base_configs --with-server-suffix=\"-cge"\"
+  fi
+}
+
+set_classic_package()
+{
+  base_configs="$base_configs --with-comment=\"MySQL Classic $version_text built from source\""
+  if test "x$with_debug_flag" = "xyes" ; then
+    base_configs="$base_configs --with-server-suffix=\"-debug\""
+  fi
+}
+
+#
+# Special handling of readline; use readline from the MySQL
+# distribution if building a GPL version, otherwise use libedit.
+#
+set_readline_package()
+{
+  if test -d "$path/../cmd-line-utils/readline" && test "x$gpl" = "xyes" ; then
+    base_configs="$base_configs --with-readline"
+  elif test -d "$path/../cmd-line-utils/libedit" ; then
+    base_configs="$base_configs --with-libedit"
+  fi
+}
+
+#
+# If fast flag set by user we also add architecture as discovered to 
+# compiler flags to make binary optimised for architecture at hand. 
+# We use this feature on gcc compilers.
+#
+set_gcc_special_options()
+{
+  if test "x$fast_flag" = "xyes" && test "x$compiler" = "xgcc" ; then
+    compiler_flags="$compiler_flags $check_cpu_cflags"
+  fi
+}
+
+#
+# If we discover a Core 2 Duo architecture and we have enabled the fast
+# flag, we enable a compile especially optimised for Core 2 Duo. This
+# feature is currently available on Intel's icc compiler only.
+#
+set_icc_special_options()
+{
+  if test "x$fast_flag" = "xyes" && test "x$cpu_arg" = "xcore2" && \
+     test "x$compiler" = "xicc" ; then
+    compiler_flags="$compiler_flags -xT"
+  fi
+}
+
+#
+# FreeBSD Section
+#
+set_bsd_configs()
+{
+  if test "x$cpu_base_type" != "xx86" ; then
+    usage "Only x86 CPUs supported for FreeBSD"
+    exit 1
+  fi
+  if test "x$compiler" != "xgcc" ; then
+    usage "Only gcc supported for FreeBSD"
+    exit 1
+  fi
+  base_configs="$base_configs --enable-assembler"
+  CC="gcc"
+  CXX="gcc"
+}
+
+#
+# Linux Section
+#
+set_linux_configs()
+{
+  if test "x$cpu_base_type" != "xx86" && \
+     test "x$cpu_base_type" != "xitanium" ; then
+    usage "Only x86 and Itanium CPUs supported for 32-bit Linux"
+    exit 1
+  fi
+  base_configs="$base_configs --with-fast-mutexes"
+  if test "x$cpu_base_type" = "xx86" ; then
+    base_configs="$base_configs --enable-assembler"
+  fi
+  if test "x$compiler" = "xgcc" ; then
+    CC="gcc"
+    CXX="gcc"
+    if test "x$m64" = "xyes" ; then
+      compiler_flags="$compiler_flags -m64"
+    fi
+# configure will set proper compiler flags for gcc on Linux
+  elif test "x$compiler" = "xicc" ; then
+    compiler_flags="$compiler_flags -mp -restrict"
+    CC="icc -static-intel"
+    CXX="icpc -static-intel"
+    if test "x$cpu_base_type" = "xitanium" ; then
+      compiler_flags="$compiler_flags -no-ftz"
+    fi
+    if test "x$fast_flag" != "xno" ; then
+      compiler_flags="$compiler_flags -O3 -unroll2 -ip"
+      if test "x$fast_flag" = "xyes" ; then
+        compiler_flags="$compiler_flags -ipo"
+      fi
+    fi
+  else
+    usage "Only gcc and icc compilers supported for Linux"
+    exit 1
+  fi
+}
+
+#
+# Solaris Section
+#
+set_solaris_configs()
+{
+  base_configs="$base_configs --with-mysqld-libs=-lmtmalloc"
+  case "`uname -a`" in
+    *5.10*|*5.11*)
+      ;;
+    *)
+      die "Only versions 10 and 11 supported for Solaris"
+  esac
+  if test "x$cpu_base_type" != "xx86" && \
+     test "x$cpu_base_type" != "xsparc" ; then
+    usage "Only x86 and Sparc CPUs supported for Solaris"
+    exit 1
+  fi
+  if test "x$compiler" = "xgcc" ; then
+    CC="gcc"
+    CXX="gcc"
+    if test "x$cpu_base_type" != "xx86" ; then
+      usage "Only gcc supported for Solaris 10/11 on SPARC"
+    fi
+    compiler_flags="$compiler_flags -m64 -DMY_ATOMIC_MODE_RWLOCKS"
+    LDFLAGS="-m64 -static-libgcc"
+    if test "x$fast_flag" != "xno" ; then
+      LDFLAGS="$LDFLAGS -O2"
+      compiler_flags="$compiler_flags -O2"
+    else
+      LDFLAGS="$LDFLAGS -O"
+      compiler_flags="$compiler_flags -O"
+    fi
+  elif test "x$compiler" = "xforte" ; then
+    if test "x$cpu_base_type" = "xx86" ; then
+      usage "Only gcc supported for Solaris/x86"
+    fi
+    if test "x$cpu_base_type" != "xsparc" ; then
+      usage "Forte compiler supported for Solaris 9/SPARC only"
+    fi
+    CC="cc-5.0"
+    CXX=CC
+    ASFLAGS="xarch=v9"
+    LDFLAGS="xarch=v9"
+    base_cflags="$base_cflags -Xa -xstrconst -xc99=none"
+    base_cxxflags="$base_cxxflags -noex"
+    compiler_flags="$compiler_flags -mt -D_FORTEC -xarch=v9"
+    if test "x$fast_flag" != "xno" ; then
+      compiler_flags="$compiler_flags -xO3"
+    fi
+  else
+    usage "Only gcc and Forte compilers supported for Solaris"
+    exit 1
+  fi
+}
+
+#
+# Mac OS X Section
+#
+set_macosx_configs()
+{
+  base_cxxflags="$base_cxxflags -fno-common"
+  if test "x$cpu_base_type" = "xx86" && test "x$compiler" = "xgcc" ; then
+    compiler_flags="$compiler_flags -arch i386"
+  else
+    usage "Only gcc/x86 supported for Mac OS X"
+    exit 1
+  fi
+#
+# Optimize for space as long as it doesn't affect performance, use some
+# optimisations also when not in fast mode.
+#
+  if test "x$fast_flag" != "xno" ; then
+    compiler_flags="$compiler_flags -Os"
+    base_cxxflags="$base_cxxflags -felide-constructors"
+  else
+    compiler_flags="$compiler_flags -O"
+  fi
+  CC="gcc"
+  CXX="gcc"
+}
+
+#
+# Use static linking for own modules and dynamic linking for system
+# modules unless specifically requested to do everything statically.
+# Should normally not be used; static_linking_flag kept in case someone 
+# really needs it. Available only if developer flag is also set.
+#
+set_static_link_configs()
+{
+  if test "x$static_linking_flag" = "xyes" && test "x$developer_flag" = "xyes" ; then
+    loc_static_link="--with-mysqld-ldflags=\"-all-static\""
+    loc_static_link="$loc_static_link --with-client-ldflags=\"-all-static\""
+  else
+    loc_static_link="--with-mysqld-ldflags=\"-static\""
+    loc_static_link="$loc_static_link --with-client-ldflags=\"-static\""
+  fi
+  base_configs="$base_configs $loc_static_link"
+}
+
+#
+# Enable error injection in MySQL Server (for developer build only -
+# extra check for developer flag required).
+#
+set_error_inject_configs()
+{
+  if test "x$error_inject_flag" = "xyes" && test "x$developer_flag" = "xyes" ; then
+    base_configs="$base_configs --with-error-inject"
+    if test "x$package" = "xndb" || test "x$package" = "xextended" ; then
+      base_configs="$base_configs --with-ndb-ccflags='-DERROR_INSERT'"
+    fi
+  fi
+}
+
+set_default_package()
+{
+  if test "x$package" = "x" ; then
+    if test "x$developer_flag" = "xyes" ; then
+      package="extended"
+    else
+      package="cge"
+    fi
+  fi
+}
+
+set_autotool_flags()
+{
+  if test "x$use_autotools" = "x" ; then
+    if test "x$developer_flag" = "xno" ; then
+      use_autotools="no"
+    else
+      use_autotools="yes"
+    fi
+  fi
+}
+
+set_defaults_based_on_environment()
+{
+  if test ! -z "$MYSQL_DEVELOPER" ; then
+    developer_flag="yes"
+  fi
+  if test ! -z "$MYSQL_DEVELOPER_DEBUG" ; then
+    with_debug_flag="yes"
+    fast_flag="no"
+  fi
+  if test ! -z "$MYSQL_DEVELOPER_PACKAGE" ; then
+    package="$MYSQL_DEVELOPER_PACKAGE"
+    parse_package
+  fi
+}
+
+########################################################################
+
+if test ! -f sql/mysqld.cc ; then
+  die "You must run this script from the MySQL top-level directory"
+fi
+
+cpu_type=
+package=
+prefix="/usr/local/mysql"
+parallelism="4"
+fast_flag="generic"
+compiler="gcc"
+gpl="yes"
+version_text=
+developer_flag="no"
+just_configure=
+full_debug=
+warning_mode=
+with_flags=
+error_inject_flag=
+with_debug_flag=
+compile_debug_flag=
+strip_flag=
+valgrind_flag=
+static_linking_flag=
+compiler_flags=
+os=
+cpu_base_type=
+warnings=
+c_warnings=
+cflags=
+base_cflags=
+cxx_warnings=
+base_cxxflags=
+base_configs=
+debug_flags=
+cxxflags=
+m32=
+m64=
+datadir=
+commands=
+use_autotools=
+
+set_defaults_based_on_environment
+
+parse_options "$@"
+
+set_autotool_flags
+set_default_package
+
+set -e
+
+#
+# Check for the CPU and set up CPU specific flags. We may reset them
+# later.
+# This call sets the cpu_arg and check_cpu_args parameters
+#
+path=`dirname $0`
+. "$path/check-cpu"
+set_cpu_base
+if test "x$?" = "x1" ; then
+  exit 1
+fi
+
+#
+# Set up c_warnings and cxx_warnings; add to compiler_flags.
+# Possibly reset check_cpu_flags.
+#
+set_warning_flags
+
+#
+# Add to compiler_flags.
+#
+set_valgrind_flags
+set_with_debug_flags
+set_no_omit_frame_pointer_for_developers
+set_debug_flag
+set_gcc_special_options
+set_icc_special_options
+
+#
+# Definitions of various packages possible to compile. The default is to
+# build a source variant of MySQL Cluster Carrier Grade Edition 
+# including all storage engines except InnoDB, and to use GPL libraries.
+#
+set_base_configs
+set_base_engines
+if test "x$gpl" = "xyes" ; then
+  version_text="GPL version"
+else
+  version_text="Commercial version"
+fi
+if test "x$package" = "xpro" ; then
+  set_pro_package
+elif test "x$package" = "xextended" ; then
+  set_cge_extended_package
+elif test "x$package" = "xcge" ; then
+  set_cge_package
+elif test "x$package" = "xclassic" ; then
+  set_classic_package
+else
+  die "No supported package was used, internal error"
+fi
+set_readline_package
+set_static_link_configs
+set_error_inject_configs
+
+#
+# This section handles flags for specific combinations of compilers,
+# operating systems, and processors.
+#
+
+check_os
+if test "x$os" = "xlinux" ; then
+  set_linux_configs
+elif test "x$os" = "xSolaris" ; then
+  set_solaris_configs
+elif test "x$os" = "xMacOSX" ; then
+  set_macosx_configs
+elif test "x$os" = "xbsd" ; then
+  set_bsd_configs
+else
+  die "Operating system not supported by this script"
+fi
+
+#
+# Final step before setting up commands is to set up proper make and
+# proper libtoolize versions, and to determine whether to use ccache.
+#
+set_make_version
+set_up_ccache
+
+#
+# Set up commands variable from variables prepared for base 
+# configurations, compiler flags, and warnings flags.
+# 
+if test "x$use_autotools" = "xyes" ; then
+  init_auto_commands
+fi
+init_configure_commands
+
+if test "x$just_configure" != "xyes" ; then
+  add_make_commands
+fi
+
+#
+# The commands variable now contains the entire command to be run for
+# the build; we either execute it, or merely print it out.
+#
+if test "x$just_print" = "xyes" ; then
+  echo "$commands"
+else
+  eval "set -x; $commands"
+fi

BUILD/check-cpu

@@ -2,6 +2,9 @@
 #
 # Check cpu of current machine and find the
 # best compiler optimization flags for gcc
+# Will return result in:
+# cpu_arg        : Type of CPU
+# check_cpu_args : Arguments for GCC compiler settings
 #
 
 check_cpu () {
@@ -62,36 +65,41 @@ check_cpu () {
     Alpha*EV6*)
       cpu_arg="ev6";
       ;;
-
     # Intel ia32
     *Intel*Core*|*X[eE][oO][nN]*)
       # a Xeon is just another pentium4 ...
       # ... unless it has the "lm" (long-mode) flag set, 
       # in that case it's a Xeon with EM64T support
+      # If SSE3 support exists it is a Core2 Duo or newer
       # So is Intel Core.
       if [ -z "$cpu_flag_lm" ]; then
-        cpu_arg="pentium4";
+        cpu_arg="pentium4"
+      else
+        cpu_arg="nocona"
+      fi
+      if test -z "$cpu_flag_ssse3" ; then
+        core2="no"
       else
-        cpu_arg="nocona";
+        core2="yes"
       fi
       ;;
     *Pentium*4*Mobile*)
-      cpu_arg="pentium4m";
+      cpu_arg="pentium4m"
       ;;
     *Pentium*4*)
-      cpu_arg="pentium4";
+      cpu_arg="pentium4"
       ;;
     *Pentium*III*Mobile*)
-      cpu_arg="pentium3m";
+      cpu_arg="pentium3m"
       ;;
     *Pentium*III*)
-      cpu_arg="pentium3";
+      cpu_arg="pentium3"
       ;;
     *Pentium*M*pro*)
-      cpu_arg="pentium-m";
+      cpu_arg="pentium-m"
     ;;
     *Celeron\(R\)*\ M*)
-      cpu_arg="pentium-m";
+      cpu_arg="pentium-m"
       ;;
     *Celeron*Coppermine*)
       cpu_arg="pentium3"
@@ -100,54 +108,52 @@ check_cpu () {
       cpu_arg="pentium4"
       ;;
     *Celeron*)
-      cpu_arg="pentium2";
-    ;;
-    *Athlon*64*)
-      cpu_arg="athlon64";
+      cpu_arg="pentium2"
       ;;
     *Turion*)
-      cpu_arg="athlon64";
+      cpu_arg="athlon64"
       ;;
-    *Opteron*)
-      cpu_arg="athlon64";
+    *Athlon*64*)
+      cpu_arg="athlon64"
       ;;
     *Athlon*)
-      cpu_arg="athlon";
+      cpu_arg="athlon"
       ;;
     *Opteron*)
-      cpu_arg="opteron";
+      cpu_arg="opteron"
       ;;
     # MacOSX / Intel  
     *i386*i486*)
-      cpu_arg="pentium-m";
+      cpu_arg="pentium-m"
+      ;;
+    *i386*)
+      cpu_arg="i386"
       ;;
     #Core 2 Duo  
     *Intel*Core\(TM\)2*)
-      cpu_arg="nocona";
+      cpu_arg="nocona"
       ;;
-
     # Intel ia64
     *Itanium*)
-      # Don't need to set any flags for itanium(at the moment)
-      cpu_arg="";
+      cpu_arg="itanium"
       ;;
-
-    #
+    # Solaris Sparc
+    *sparc*sun4u*)
+      cpu_arg="sparc"
+      ;;
+    # Power PC
     *ppc*)
-      cpu_arg='powerpc'
+      cpu_arg="powerpc"
       ;;
-   
     *powerpc*)
-      cpu_arg='powerpc'
+      cpu_arg="powerpc"
       ;;
-
     # unknown
     *)
-      cpu_arg="";
+      cpu_arg=""
       ;;
   esac
 
-
   if test -z "$cpu_arg" ; then
     if test "$CPUINFO" != " " ; then
       # fallback to uname if necessary
@@ -181,24 +187,17 @@ check_cpu () {
     *GCC*)
         # different gcc backends (and versions) have different CPU flags
         case `gcc -dumpmachine` in
-          i?86-*)
-	    if test "$cc_comp" -lt 304
-            then
-                            check_cpu_args='-mcpu=$cpu_arg'
+          i?86-* | x86_64-*)
+	    if test "$cc_comp" -lt 304 ; then
+              check_cpu_cflags="-mcpu=${cpu_arg}"
+            elif test "$cc_comp" -ge 402 ; then
+              check_cpu_cflags="-mtune=native"
             else
-                            check_cpu_args='-mtune=$cpu_arg'
+              check_cpu_cflags="-mtune=${cpu_arg}"
             fi
             ;;
           ppc-*)
-                    check_cpu_args='-mcpu=$cpu_arg -mtune=$cpu_arg'
-            ;;
-          x86_64-*)
-	    if test "$cc_comp" -lt 304
-            then
-                            check_cpu_args='-mcpu=$cpu_arg'
-            else
-                            check_cpu_args='-mtune=$cpu_arg'
-            fi
+              check_cpu_cflags="-mcpu=${cpu_arg} -mtune=${cpu_arg}"
             ;;
           *)
             check_cpu_cflags=""
@@ -208,7 +207,7 @@ check_cpu () {
       ;;
     2.95.*)
       # GCC 2.95 doesn't expose its name in --version output
-      check_cpu_args='-m$cpu_arg'
+      check_cpu_cflags="-m${cpu_arg}"
       ;;
     *)
       check_cpu_cflags=""
@@ -219,41 +218,23 @@ check_cpu () {
   # now we check whether the compiler really understands the cpu type
   touch __test.c
 
+  if test "x$core2" = "xyes" ; then
+    cpu_arg="core2"
+  fi
   while [ "$cpu_arg" ] ; do
     printf "testing $cpu_arg ... " >&2
           
     # compile check
-    check_cpu_cflags=`eval echo $check_cpu_args`
-    if $cc -c $check_cpu_cflags __test.c 2>/dev/null; then
+    eval "$cc -c $check_cpu_cflags __test.c" 2>/dev/null
+    if test "x$?" = "x0" ; then
       echo ok >&2
       break;
     fi
 
     echo failed >&2
     check_cpu_cflags=""
-
-    # if compile failed: check whether it supports a predecessor of this CPU
-    # this list is not complete, feel free to add further entries
-    case "$cpu_arg" in
-      # Intel ia32
-      nocona)     cpu_arg=pentium4    ;; 
-      prescott)   cpu_arg=pentium4    ;;
-      pentium4m)  cpu_arg=pentium4    ;;
-      pentium4)   cpu_arg=pentium3    ;;
-      pentium3m)  cpu_arg=pentium3    ;;
-      pentium3)   cpu_arg=pentium2    ;;
-      pentium2)   cpu_arg=pentiumpro  ;;
-      pentiumpro) cpu_arg=pentium     ;;
-      pentium)    cpu_arg=i486        ;;
-      i486)       cpu_arg=i386        ;;
-
-      # power / powerPC
-      7450)       cpu_arg=7400        ;;
-
-      *)          cpu_arg=""          ;;
-    esac
+    break;
   done
-
   rm __test.*
 }