CMake/bootstrap

#!/bin/sh

#=========================================================================
#
#  Program:   CMake - Cross-Platform Makefile Generator
#  Module:    $RCSfile$
#  Language:  Bourne Shell
#  Date:      $Date$
#  Version:   $Revision$
#
#  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
#  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
#
#     This software is distributed WITHOUT ANY WARRANTY; without even 
#     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
#     PURPOSE.  See the above copyright notices for more information.
#
#=========================================================================

CMAKE_KNOWN_C_COMPILERS="cc gcc xlc icc tcc"
CMAKE_KNOWN_CXX_COMPILERS="aCC xlC CC g++ c++ icc como "
CMAKE_KNOWN_MAKE_PROCESSORS="gmake make"

CMAKE_PROBLEMATIC_FILES="\
  CMakeCache.txt \
  CMakeSystem.cmake \
  CMakeCCompiler.cmake \
  CMakeCXXCompiler.cmake \
  Source/cmConfigure.h \
  Source/CTest/Curl/config.h \
  Utilities/cmexpat/expatConfig.h \
  Utilities/cmexpat/expatDllConfig.h \
  "

CMAKE_CXX_SOURCES="\
  cmake  \
  cmakewizard  \
  cmakemain \
  cmMakeDepend \
  cmMakefile \
  cmDocumentation \
  cmGlob \
  cmGlobalGenerator \
  cmLocalGenerator \
  cmSourceFile \
  cmSystemTools \
  cmGlobalUnixMakefileGenerator \
  cmLocalUnixMakefileGenerator \
  cmCommands \
  cmTarget \
  cmCustomCommand \
  cmCacheManager \
  cmListFileCache \
  cmVariableWatch \
  cmVersion \
  cmSourceGroup"

CMAKE_C_SOURCES="\
  cmListFileLexer \
  "

KWSYS_C_SOURCES="\
  ProcessUNIX"

KWSYS_CXX_SOURCES="\
  Directory \
  RegularExpression \
  SystemTools"

KWSYS_FILES="\
  Directory.hxx \
  Process.h \
  RegularExpression.hxx \
  SystemTools.hxx"

KWSYS_IOS_FILES="
  fstream \
  iosfwd \
  iostream \
  sstream"

cmake_system=`uname`

cmake_source_dir=`echo $0 | sed -n '/\//{s/\/[^\/]*$//;p;}'`
cmake_source_dir=`(cd "${cmake_source_dir}";pwd)`
cmake_binary_dir=`pwd`
cmake_bootstrap_dir="${cmake_binary_dir}/Bootstrap.cmk"
cmake_data_dir="/share/CMake"
cmake_doc_dir="/doc/CMake"
cmake_man_dir="/man"
cmake_init_file=""

# Display CMake bootstrap usage
cmake_usage()
{
  cat <<EOF
Usage: $0 [options]
Options: [defaults in brackets after descriptions]
Configuration:
  --help                  print this message
  --version               only print version information
  --verbose               display more information
  --parallel=n            bootstrap cmake in parallel, where n is
                          number of nodes [1]
  --init=FILE             use FILE for cmake initialization

Directory and file names:
  --prefix=PREFIX         install files in tree rooted at PREFIX
                          [/usr/local]
  --datadir=DIR           install data files in PREFIX/DIR
                          [/share/CMake]
  --docdir=DIR            install documentation files in PREFIX/DIR
                          [/doc/CMake]
  --mandir=DIR            install man pages files in PREFIX/DIR/manN
                          [/man]
EOF
  exit 10
}

# Display CMake bootstrap usage
cmake_version()
{
  # Get CMake version
  CMAKE_VERSION=""
  for a in MAJOR MINOR PATCH; do
    CMake_VERSION=`cat "${cmake_source_dir}/CMakeLists.txt" | \
      grep "SET(CMake_VERSION_${a} *[0-9]*)" | sed "s/SET(CMake_VERSION_${a} *\([0-9]*\))/\1/"`
    CMAKE_VERSION="${CMAKE_VERSION}.${CMake_VERSION}" 
  done
  CMAKE_VERSION=`echo $CMAKE_VERSION | sed "s/\.\([0-9][0-9]*\)\.\([0-9][0-9]*\)\.\([0-9][0-9]*\)/\1.\2-\3/"`
  echo "CMake ${CMAKE_VERSION}, Copyright (c) 2002 Kitware, Inc., Insight Consortium"
}

# Display CMake bootstrap error, display the log file and exit
cmake_error()
{
  res=$1
  shift 1
  echo "---------------------------------------------"
  echo "Error when bootstrapping CMake:" 
  echo "$*"
  echo "---------------------------------------------"
  if [ -f cmake_bootstrap.log ]; then
    echo "Log of errors: `pwd`/cmake_bootstrap.log"
    #cat cmake_bootstrap.log
    echo "---------------------------------------------"
  fi
  exit ${res}
}

# Replace KWSYS_NAMESPACE with cmsys
cmake_replace_string ()
{
  INFILE="$1"
  OUTFILE="$2"
  SEARCHFOR="$3"
  REPLACEWITH="$4"
  if [ -f "${INFILE}" ]; then
    cat "${INFILE}" | 
      sed "s/\@${SEARCHFOR}\@/${REPLACEWITH}/g" > "${OUTFILE}.tmp"
    if [ -f "${OUTFILE}.tmp" ]; then
      if diff "${OUTFILE}" "${OUTFILE}.tmp" > /dev/null 2> /dev/null ; then
        #echo "Files are the same"
        rm -f "${OUTFILE}.tmp"
      else
        mv -f "${OUTFILE}.tmp" "${OUTFILE}"
      fi
    fi
  else
    cmake_error 1 "Cannot find file ${INFILE}"
  fi
}

cmake_kwsys_config_replace_string ()
{
  INFILE="$1"
  OUTFILE="$2"
  shift 2
  APPEND="$*"
  if [ -f "${INFILE}" ]; then
    echo "${APPEND}" > "${OUTFILE}.tmp"
    cat "${INFILE}" | 
      sed "/./ {s/\@KWSYS_NAMESPACE\@/cmsys/g;
                s/@KWSYS_BUILD_SHARED@/${KWSYS_BUILD_SHARED}/g;
                s/@KWSYS_NAME_IS_KWSYS@/${KWSYS_NAME_IS_KWSYS}/g;
                s/@KWSYS_IOS_USE_ANSI@/${KWSYS_IOS_USE_ANSI}/g;
                s/@KWSYS_IOS_HAVE_STD@/${KWSYS_IOS_HAVE_STD}/g;
                s/@KWSYS_IOS_USE_SSTREAM@/${KWSYS_IOS_USE_SSTREAM}/g;
                s/@KWSYS_IOS_USE_STRSTREAM_H@/${KWSYS_IOS_USE_STRSTREAM_H}/g;
                s/@KWSYS_IOS_USE_STRSTREA_H@/${KWSYS_IOS_USE_STRSTREA_H}/g;
                s/@KWSYS_STL_HAVE_STD@/${KWSYS_STL_HAVE_STD}/g;}" >> "${OUTFILE}.tmp"
    if [ -f "${OUTFILE}.tmp" ]; then
      if diff "${OUTFILE}" "${OUTFILE}.tmp" > /dev/null 2> /dev/null ; then
        #echo "Files are the same"
        rm -f "${OUTFILE}.tmp"
      else
        mv -f "${OUTFILE}.tmp" "${OUTFILE}"
      fi
    fi
  else
    cmake_error 2 "Cannot find file ${INFILE}"
  fi
}
# Write string into a file
cmake_report ()
{
  FILE=$1
  shift
  echo "$*" >> ${FILE}
}

# Escape spaces in strings
cmake_escape ()
{
  echo $1 | sed "s/ /\\\\ /g"
}

# Write message to the log
cmake_log ()
{
  echo "$*" >> cmake_bootstrap.log
}

# Return temp file
cmake_tmp_file ()
{
  echo "cmake_bootstrap_$$.test"
}

# Run a compiler test. First argument is compiler, second one are compiler
# flags, third one is test source file to be compiled
cmake_try_run ()
{
  COMPILER=$1
  FLAGS=$2
  TESTFILE=$3
  if [ ! -f "${TESTFILE}" ]; then
    echo "Test file ${TESTFILE} missing. Please verify your CMake source tree."
    exit 4
  fi
  TMPFILE=`cmake_tmp_file`
  echo "Try: ${COMPILER}"
  echo "Line: ${COMPILER} ${FLAGS} ${TESTFILE} -o ${TMPFILE}"
  echo "----------  file   -----------------------"
  cat ${TESTFILE}
  echo "------------------------------------------"
  "${COMPILER}" ${FLAGS} "${TESTFILE}" -o "${TMPFILE}"
  RES=$?
  if [ "${RES}" -ne "0" ]; then
    echo "Test failed to compile"
    return 1
  fi
  if [ ! -f "${TMPFILE}" ] && [ ! -f "${TMPFILE}.exe" ]; then
    echo "Test failed to produce executable"
    return 2
  fi
  ./${TMPFILE}
  RES=$?
  rm -f "${TMPFILE}"
  if [ "${RES}" -ne "0" ]; then
    echo "Test produced non-zero return code"
    return 3
  fi
  echo "Test succeded"
  return 0
}

# Run a make test. First argument is the make interpreter.
cmake_try_make ()
{
  MAKE_PROC="$1"
  MAKE_FLAGS="$2"
  echo "Try: ${MAKE_PROC}"
  "${MAKE_PROC}" ${MAKE_FLAGS}
  RES=$?
  if [ "${RES}" -ne "0" ]; then
    echo "${MAKE_PROC} does not work"
    return 1
  fi
  if [ ! -f "test" ] && [ ! -f "test.exe" ]; then
    echo "${COMPILER} does not produce output"
    return 2
  fi
  ./test
  RES=$?
  rm -f "test"
  if [ "${RES}" -ne "0" ]; then
    echo "${MAKE_PROC} produces strange executable"
    return 3
  fi
  echo "${MAKE_PROC} works"
  return 0
}

# Parse arguments
cmake_verbose=
cmake_parallel_make=
cmake_prefix_dir="/usr/local"
for a in "$@"; do
  if echo $a | grep "^--prefix=" > /dev/null 2> /dev/null; then
    cmake_prefix_dir=`echo $a | sed "s/^--prefix=//"`
  fi
  if echo $a | grep "^--parallel=" > /dev/null 2> /dev/null; then
    cmake_parallel_make=`echo $a | sed "s/^--parallel=//" | grep "[0-9][0-9]*"`
  fi
  if echo $a | grep "^--datadir=" > /dev/null 2> /dev/null; then
    cmake_data_dir=`echo $a | sed "s/^--datadir=//"`
  fi
  if echo $a | grep "^--docdir=" > /dev/null 2> /dev/null; then
    cmake_doc_dir=`echo $a | sed "s/^--docdir=//"`
  fi
  if echo $a | grep "^--mandir=" > /dev/null 2> /dev/null; then
    cmake_man_dir=`echo $a | sed "s/^--mandir=//"`
  fi
  if echo $a | grep "^--init=" > /dev/null 2> /dev/null; then
    cmake_init_file=`echo $a | sed "s/^--init=//"`
  fi
  if echo $a | grep "^--help" > /dev/null 2> /dev/null; then
    cmake_usage
  fi
  if echo $a | grep "^--version" > /dev/null 2> /dev/null; then
    cmake_version
    exit 2
  fi
  if echo $a | grep "^--verbose" > /dev/null 2> /dev/null; then
    cmake_verbose=TRUE
  fi
done

# If verbose, display some information about bootstrap
if [ -n "${cmake_verbose}" ]; then
  echo "---------------------------------------------"
  echo "Source directory: ${cmake_source_dir}"
  echo "Binary directory: ${cmake_binary_dir}"
  echo "Prefix directory: ${cmake_prefix_dir}"
  echo "System:           ${cmake_system}"
  if [ "x${cmake_parallel_make}" != "x" ]; then
    echo "Doing parallel make: ${cmake_parallel_make}"
  fi
  echo ""
fi

echo "---------------------------------------------"
# Get CMake version
echo "`cmake_version`"

# Check for in-source build
cmake_in_source_build=
if [ -f "${cmake_binary_dir}/Source/cmake.cxx" -a \
     -f "${cmake_binary_dir}/Source/cmake.h" ]; then
  if [ -n "${cmake_verbose}" ]; then
    echo "Warning: This is an in-source build"
  fi
  cmake_in_source_build=TRUE
fi

# If this is not an in-source build, then Bootstrap stuff should not exist.
if [ -z "${cmake_in_source_build}" ]; then
  # Did somebody bootstrap in the source tree?
  if [ -d "${cmake_source_dir}/Bootstrap.cmk" ]; then
    cmake_error 10 "Found directory \"${cmake_source_dir}/Bootstrap.cmk\".
Looks like somebody did bootstrap CMake in the source tree, but now you are
trying to do bootstrap in the binary tree. Please remove Bootstrap.cmk
directory from the source tree."
  fi
  # Is there a cache in the source tree?
  for cmake_problematic_file in ${CMAKE_PROBLEMATIC_FILES}; do
    if [ -f "${cmake_source_dir}/${cmake_problematic_file}" ]; then
      cmake_error 10 "Found \"${cmake_source_dir}/${cmake_problematic_file}\".
Looks like somebody tried to build CMake in the source tree, but now you are
trying to do bootstrap in the binary tree. Please remove \"${cmake_problematic_file}\"
from the source tree."
    fi
  done
fi

# Make bootstrap directory
[ -d "${cmake_bootstrap_dir}" ] || mkdir "${cmake_bootstrap_dir}"
if [ ! -d "${cmake_bootstrap_dir}" ]; then
  cmake_error 3 "Cannot create directory ${cmake_bootstrap_dir} to bootstrap CMake."
fi
cd "${cmake_bootstrap_dir}"

[ -d "cmsys" ] || mkdir "cmsys"
if [ ! -d "cmsys" ]; then
  cmake_error 4 "Cannot create directory ${cmake_bootstrap_dir}/cmsys"
fi

for a in stl ios; do
  [ -d "cmsys/${a}" ] || mkdir "cmsys/${a}"
  if [ ! -d "cmsys/${a}" ]; then
    cmake_error 5 "Cannot create directory ${cmake_bootstrap_dir}/cmsys/${a}"
  fi
done

# Delete all the bootstrap files
rm -f "${cmake_bootstrap_dir}/cmake_bootstrap.log"
rm -f "${cmake_bootstrap_dir}/cmConfigure.h.tmp"

# If exist compiler flags, set them
cmake_c_flags=${CFLAGS}
cmake_cxx_flags=${CXXFLAGS}

# Test C compiler
cmake_c_compiler=

# If CC is set, use that for compiler, otherwise use list of known compilers
if [ -n "${CC}" ]; then
  cmake_c_compilers="${CC}"
else
  cmake_c_compilers="${CMAKE_KNOWN_C_COMPILERS}"
fi

# Check if C compiler works
TMPFILE=`cmake_tmp_file`
cat > "${TMPFILE}.c" <<EOF
#include<stdio.h>
int main()
{
  printf("1\n");
  return 0;
}
EOF
for a in ${cmake_c_compilers}; do
  if [ -z "${cmake_c_compiler}" ] && \
    cmake_try_run "${a}" "${cmake_c_flags}" "${TMPFILE}.c" >> cmake_bootstrap.log 2>&1; then
    cmake_c_compiler="${a}"
  fi
done
rm -f "${TMPFILE}.c"

if [ -z "${cmake_c_compiler}" ]; then
  cmake_error 6 "Cannot find appropriate C compiler on this system.
Please specify one using environment variable CC.
See cmake_bootstrap.log for compilers attempted.
"
fi
echo "C compiler on this system is: ${cmake_c_compiler} ${cmake_c_flags}"

# Test CXX compiler
cmake_cxx_compiler=

# On Mac OSX, CC is the same as cc, so make sure not to try CC as c++ compiler.

# If CC is set, use that for compiler, otherwise use list of known compilers
if [ -n "${CXX}" ]; then
  cmake_cxx_compilers="${CXX}"
else
  cmake_cxx_compilers="${CMAKE_KNOWN_CXX_COMPILERS}"
fi

# Check if C++ compiler works
TMPFILE=`cmake_tmp_file`
cat > "${TMPFILE}.cxx" <<EOF
#if defined(TEST1)
# include <iostream>
#else
# include <iostream.h>
#endif

class NeedCXX 
{
public:
  NeedCXX() { this->Foo = 1; }
  int GetFoo() { return this->Foo; }
private:
  int Foo;
};
int main()
{
  NeedCXX c;
#ifdef TEST3
  cout << c.GetFoo() << endl;
#else
  std::cout << c.GetFoo() << std::endl;
#endif
  return 0;
}
EOF
for a in ${cmake_cxx_compilers}; do
  for b in 1 2 3; do
    if [ -z "${cmake_cxx_compiler}" ] && \
      cmake_try_run "${a}" "${cmake_cxx_flags} -DTEST${b}" "${TMPFILE}.cxx" >> cmake_bootstrap.log 2>&1; then
      cmake_cxx_compiler="${a}"
    fi
  done
done
rm -f "${TMPFILE}.cxx"

if [ -z "${cmake_cxx_compiler}" ]; then
  cmake_error 7 "Cannot find appropriate C++ compiler on this system.
Please specify one using environment variable CXX.
See cmake_bootstrap.log for compilers attempted."
fi
echo "C++ compiler on this system is: ${cmake_cxx_compiler} ${cmake_cxx_flags}"

# Test Make

cmake_make_processor=
cmake_make_flags=

# If MAKE is set, use that for make processor, otherwise use list of known make
if [ -n "${MAKE}" ]; then
  cmake_make_processors="${MAKE}"
else
  cmake_make_processors="${CMAKE_KNOWN_MAKE_PROCESSORS}"
fi

TMPFILE="`cmake_tmp_file`_dir"
rm -rf "${cmake_bootstrap_dir}/${TMPFILE}"
mkdir "${cmake_bootstrap_dir}/${TMPFILE}"
cd "${cmake_bootstrap_dir}/${TMPFILE}"
cat>"Makefile"<<EOF
test: test.c
	"${cmake_c_compiler}" -o test test.c
EOF
cat>"test.c"<<EOF
#include <stdio.h>
int main(){ printf("1\n"); return 0; }
EOF
cmake_original_make_flags="${cmake_make_flags}"
if [ "x${cmake_parallel_make}" != "x" ]; then
  cmake_make_flags="${cmake_make_flags} -j ${cmake_parallel_make}"
fi
for a in ${cmake_make_processors}; do
  if [ -z "${cmake_make_processor}" ] && cmake_try_make "${a}" "${cmake_make_flags}" >> cmake_bootstrap.log 2>&1; then
    cmake_make_processor="${a}"
  fi
done
cmake_full_make_flags="${cmake_make_flags}"
if [ "x${cmake_original_make_flags}" != "x${cmake_make_flags}" ]; then
  if [ -z "${cmake_make_processor}" ]; then
    cmake_make_flags="${cmake_original_make_flags}"
    for a in ${cmake_make_processors}; do
      if [ -z "${cmake_make_processor}" ] && cmake_try_make "${a}" "${cmake_make_flags}" >> cmake_bootstrap.log 2>&1; then
        cmake_make_processor="${a}"
      fi
    done
  fi
fi
cd "${cmake_bootstrap_dir}"
rm -rf "${cmake_bootstrap_dir}/${TMPFILE}"

if [ -z "${cmake_make_processor}" ]; then
  cmake_error 8 "Cannot find appropriate Makefile processor on this system.
Please specify one using environment variable MAKE."
fi
echo "Makefile processor on this system is: ${cmake_make_processor}"
if [ "x${cmake_full_make_flags}" != "x${cmake_make_flags}" ]; then
  echo "---------------------------------------------"
  echo "Makefile processor ${cmake_make_processor} does not support parallel build"
  echo "---------------------------------------------"
fi

# Ok, we have CC, CXX, and MAKE.

# Test C++ compiler features

# Are we GCC?

TMPFILE=`cmake_tmp_file`
cat > ${TMPFILE}.cxx <<EOF
#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
#include <iostream>
int main() { std::cout << "This is GNU" << std::endl; return 0;}
#endif
EOF
cmake_cxx_compiler_is_gnu=0
if cmake_try_run "${cmake_cxx_compiler}" \
  "${cmake_cxx_flags}" "${TMPFILE}.cxx" >> cmake_bootstrap.log 2>&1; then
  cmake_cxx_compiler_is_gnu=1
fi
if [ "x${cmake_cxx_compiler_is_gnu}" = "x1" ]; then
  echo "${cmake_cxx_compiler} is GNU compiler"
else
  echo "${cmake_cxx_compiler} is not GNU compiler"
fi
rm -f "${TMPFILE}.cxx"

if [ "x${cmake_cxx_compiler_is_gnu}" != "x1" ]; then
  # Check for non-GNU compiler flags

  # If we are on IRIX, check for -LANG:std
  cmake_test_flags="-LANG:std"
  if [ "x${cmake_system}" = "xIRIX64" ]; then
    TMPFILE=`cmake_tmp_file`
    cat > ${TMPFILE}.cxx <<EOF
    #include <iostream>
    int main() { std::cout << "No need for ${cmake_test_flags}" << std::endl; return 0;}
EOF
    cmake_need_lang_std=0
    if cmake_try_run "${cmake_cxx_compiler}" \
      "${cmake_cxx_flags}" "${TMPFILE}.cxx" >> cmake_bootstrap.log 2>&1; then
      :
    else
      if cmake_try_run "${cmake_cxx_compiler}" \
        "${cmake_cxx_flags} ${cmake_test_flags}" "${TMPFILE}.cxx" >> cmake_bootstrap.log 2>&1; then
        cmake_need_lang_std=1
      fi
    fi
    if [ "x${cmake_need_lang_std}" = "x1" ]; then
      cmake_cxx_flags="${cmake_cxx_flags} ${cmake_test_flags}"
      echo "${cmake_cxx_compiler} needs ${cmake_test_flags}"
    else
      echo "${cmake_cxx_compiler} does not need ${cmake_test_flags}"
    fi
    rm -f "${TMPFILE}.cxx"
  fi
  cmake_test_flags=

  # If we are on OSF, check for -timplicit_local -no_implicit_include
  cmake_test_flags="-timplicit_local -no_implicit_include"
  if [ "x${cmake_system}" = "xOSF1" ]; then
    TMPFILE=`cmake_tmp_file`
    cat > ${TMPFILE}.cxx <<EOF
    #include <iostream>
    int main() { std::cout << "We need ${cmake_test_flags}" << std::endl; return 0;}
EOF
    cmake_need_flags=1
    if cmake_try_run "${cmake_cxx_compiler}" \
      "${cmake_cxx_flags} ${cmake_test_flags}" "${TMPFILE}.cxx" >> cmake_bootstrap.log 2>&1; then
      :
    else
      cmake_need_flags=0
    fi
    if [ "x${cmake_need_flags}" = "x1" ]; then
      cmake_cxx_flags="${cmake_cxx_flags} ${cmake_test_flags}"
      echo "${cmake_cxx_compiler} needs ${cmake_test_flags}"
    else
      echo "${cmake_cxx_compiler} does not need ${cmake_test_flags}"
    fi
    rm -f "${TMPFILE}.cxx"
  fi
  cmake_test_flags=

  # If we are on OSF, check for -std strict_ansi -nopure_cname
  cmake_test_flags="-std strict_ansi -nopure_cname"
  if [ "x${cmake_system}" = "xOSF1" ]; then
    TMPFILE=`cmake_tmp_file`
    cat > ${TMPFILE}.cxx <<EOF
    #include <iostream>
    int main() { std::cout << "We need ${cmake_test_flags}" << std::endl; return 0;}
EOF
    cmake_need_flags=1
    if cmake_try_run "${cmake_cxx_compiler}" \
      "${cmake_cxx_flags} ${cmake_test_flags}" "${TMPFILE}.cxx" >> cmake_bootstrap.log 2>&1; then
      :
    else
      cmake_need_flags=0
    fi
    if [ "x${cmake_need_flags}" = "x1" ]; then
      cmake_cxx_flags="${cmake_cxx_flags} ${cmake_test_flags}"
      echo "${cmake_cxx_compiler} needs ${cmake_test_flags}"
    else
      echo "${cmake_cxx_compiler} does not need ${cmake_test_flags}"
    fi
    rm -f "${TMPFILE}.cxx"
  fi
  cmake_test_flags=

  # If we are on HP-UX, check for -Ae for the C compiler.
  cmake_test_flags="-Ae"
  if [ "x${cmake_system}" = "xHP-UX" ]; then
    TMPFILE=`cmake_tmp_file`
    cat > ${TMPFILE}.c <<EOF
    int main(int argc, char** argv) { (void)argc; (void)argv; return 0; }
EOF
    cmake_need_Ae=0
    if cmake_try_run "${cmake_c_compiler}" "${cmake_c_flags}" "${TMPFILE}.c" >> cmake_bootstrap.log 2>&1; then
      :
    else
      if cmake_try_run "${cmake_c_compiler}" \
        "${cmake_c_flags} ${cmake_test_flags}" "${TMPFILE}.c" >> cmake_bootstrap.log 2>&1; then
        cmake_need_Ae=1
      fi
    fi
    if [ "x${cmake_need_Ae}" = "x1" ]; then
      cmake_c_flags="${cmake_c_flags} ${cmake_test_flags}"
      echo "${cmake_c_compiler} needs ${cmake_test_flags}"
    else
      echo "${cmake_c_compiler} does not need ${cmake_test_flags}"
    fi
    rm -f "${TMPFILE}.c"
  fi
  cmake_test_flags=
fi

# Test for kwsys features
KWSYS_NAME_IS_KWSYS=0
KWSYS_BUILD_SHARED=0
KWSYS_IOS_USE_STRSTREAM_H=0
KWSYS_IOS_USE_STRSTREA_H=0
KWSYS_IOS_HAVE_STD=0
KWSYS_IOS_USE_SSTREAM=0
KWSYS_IOS_USE_ANSI=0
KWSYS_STL_HAVE_STD=0

if cmake_try_run "${cmake_cxx_compiler}" \
  "${cmake_cxx_flags} -DTEST_KWSYS_STL_HAVE_STD" \
  "${cmake_source_dir}/Source/kwsys/kwsysPlatformCxxTests.cxx" >> cmake_bootstrap.log 2>&1; then
  KWSYS_STL_HAVE_STD=1
  echo "${cmake_cxx_compiler} has STL in std:: namespace"
else
  echo "${cmake_cxx_compiler} does not have STL in std:: namespace"
fi

if cmake_try_run "${cmake_cxx_compiler}" \
  "${cmake_cxx_flags} -DTEST_KWSYS_IOS_USE_ANSI" \
  "${cmake_source_dir}/Source/kwsys/kwsysPlatformCxxTests.cxx" >> cmake_bootstrap.log 2>&1; then
  KWSYS_IOS_USE_ANSI=1
  echo "${cmake_cxx_compiler} has ANSI streams"
else
  echo "${cmake_cxx_compiler} does not have ANSI streams"
fi

if [ "x$KWSYS_IOS_USE_ANSI" = "x1" ]; then
  if cmake_try_run "${cmake_cxx_compiler}" \
    "${cmake_cxx_flags} -DTEST_KWSYS_IOS_HAVE_STD" \
    "${cmake_source_dir}/Source/kwsys/kwsysPlatformCxxTests.cxx" >> cmake_bootstrap.log 2>&1; then
    KWSYS_IOS_HAVE_STD=1
    echo "${cmake_cxx_compiler} has streams in std:: namespace"
  else
    echo "${cmake_cxx_compiler} does not have streams in std:: namespace"
  fi
  if cmake_try_run "${cmake_cxx_compiler}" \
    "${cmake_cxx_flags} -DTEST_KWSYS_IOS_USE_SSTREAM" \
    "${cmake_source_dir}/Source/kwsys/kwsysPlatformCxxTests.cxx" >> cmake_bootstrap.log 2>&1; then
    KWSYS_IOS_USE_SSTREAM=1
    echo "${cmake_cxx_compiler} has sstream"
  else
    echo "${cmake_cxx_compiler} does not have sstream"
  fi
fi

if [ "x$KWSYS_IOS_USE_SSTREAM" = "x0" ]; then
  if cmake_try_run "${cmake_cxx_compiler}" \
    "${cmake_cxx_flags} -DTEST_KWSYS_IOS_USE_STRSTREAM_H" \
    "${cmake_source_dir}/Source/kwsys/kwsysPlatformCxxTests.cxx" >> cmake_bootstrap.log 2>&1; then
    KWSYS_IOS_USE_STRSTREAM_H=1
    echo "${cmake_cxx_compiler} has strstream.h"
  else
    echo "${cmake_cxx_compiler} does not have strstream.h"
  fi
  if [ "x$KWSYS_IOS_USE_STRSTREAM_H" = "x0" ]; then
    if cmake_try_run "${cmake_cxx_compiler}" \
      "${cmake_cxx_flags} -DTEST_KWSYS_IOS_USE_STRSTREA_H" \
      "${cmake_source_dir}/Source/kwsys/kwsysPlatformCxxTests.cxx" >> cmake_bootstrap.log 2>&1; then
      KWSYS_IOS_USE_STRSTREA_H=1
      echo "${cmake_cxx_compiler} has strstrea.h"
    else
      echo "${cmake_cxx_compiler} does not have strstrea.h"
    fi
  fi
fi

# Just to be safe, let us store compiler and flags to the header file

cmake_bootstrap_version='$Revision$'
cmake_compiler_settings_comment="/*
 * Generated by ${cmake_source_dir}/bootstrap
 * Version:     ${cmake_bootstrap_version}
 *
 * Source directory: ${cmake_source_dir}
 * Binary directory: ${cmake_bootstrap_dir}
 *
 * C compiler:   ${cmake_c_compiler}
 * C flags:      ${cmake_c_flags}
 *
 * C++ compiler: ${cmake_cxx_compiler}
 * C++ flags:    ${cmake_cxx_flags}
 *
 * Make:         ${cmake_make_processor}
 *
 * Sources:
 * ${CMAKE_CXX_SOURCES} ${CMAKE_C_SOURCES}
 * kwSys Sources:
 * ${KWSYS_CXX_SOURCES} ${KWSYS_C_SOURCES}
 */
"

cmake_report cmConfigure.h.tmp "${cmake_compiler_settings_comment}"

if [ "x$KWSYS_STL_HAVE_STD" = "x1" ]; then
  cmake_report cmConfigure.h.tmp "/* #undef CMAKE_NO_STD_NAMESPACE */"
else
  cmake_report cmConfigure.h.tmp "#define CMAKE_NO_STD_NAMESPACE 1"
fi

if [ "x$KWSYS_IOS_USE_ANSI" = "x1" ]; then
  cmake_report cmConfigure.h.tmp "/* #undef CMAKE_NO_ANSI_STREAM_HEADERS */"
else
  cmake_report cmConfigure.h.tmp "#define CMAKE_NO_ANSI_STREAM_HEADERS 1"
fi

if [ "x$KWSYS_IOS_USE_SSTREAM" = "x1" ]; then
  cmake_report cmConfigure.h.tmp "/* #undef CMAKE_NO_ANSI_STRING_STREAM */"
else
  cmake_report cmConfigure.h.tmp "#define CMAKE_NO_ANSI_STRING_STREAM 1"
fi

# Test for ansi FOR scope
if cmake_try_run "${cmake_cxx_compiler}" \
  "${cmake_cxx_flags}" \
  "${cmake_source_dir}/Modules/TestForAnsiForScope.cxx" >> cmake_bootstrap.log 2>&1; then
  cmake_report cmConfigure.h.tmp "/* #undef CMAKE_NO_ANSI_FOR_SCOPE */"
  echo "${cmake_cxx_compiler} has ANSI for scoping"
else
  cmake_report cmConfigure.h.tmp "#define CMAKE_NO_ANSI_FOR_SCOPE 1"
  echo "${cmake_cxx_compiler} does not have ANSI for scoping"
fi

# Write CMake version
for a in MAJOR MINOR PATCH; do
  CMake_VERSION=`cat "${cmake_source_dir}/CMakeLists.txt" | \
    grep "SET(CMake_VERSION_${a} *[0-9]*)" | sed "s/SET(CMake_VERSION_${a} *\([0-9]*\))/\1/"`
  cmake_report cmConfigure.h.tmp "#define CMake_VERSION_${a} ${CMake_VERSION}"
done
cmake_report cmConfigure.h.tmp "#define CMAKE_ROOT_DIR \"${cmake_source_dir}\""
cmake_report cmConfigure.h.tmp "#define CMAKE_DATA_DIR \"${cmake_data_dir}\""
cmake_report cmConfigure.h.tmp "#define CMAKE_BOOTSTRAP"

# Regenerate real cmConfigure.h
if diff cmConfigure.h cmConfigure.h.tmp > /dev/null 2> /dev/null; then
  rm -f cmConfigure.h.tmp
else
  mv -f cmConfigure.h.tmp cmConfigure.h
fi

# Prepare KWSYS
cmake_kwsys_config_replace_string \
  "${cmake_source_dir}/Source/kwsys/Configure.hxx.in" \
  "${cmake_bootstrap_dir}/cmsys/Configure.hxx" \
  "${cmake_compiler_settings_comment}"
cmake_kwsys_config_replace_string \
  "${cmake_source_dir}/Source/kwsys/Configure.h.in" \
  "${cmake_bootstrap_dir}/cmsys/Configure.h" \
  "${cmake_compiler_settings_comment}"

for a in ${KWSYS_FILES}; do 
  cmake_replace_string "${cmake_source_dir}/Source/kwsys/${a}.in" \
     "${cmake_bootstrap_dir}/cmsys/${a}" KWSYS_NAMESPACE cmsys
done

for a in ${KWSYS_IOS_FILES}; do 
  cmake_replace_string "${cmake_source_dir}/Source/kwsys/kwsys_ios_${a}.h.in" \
     "${cmake_bootstrap_dir}/cmsys/ios/${a}" KWSYS_NAMESPACE cmsys
done

cmake_replace_string "${cmake_source_dir}/Source/kwsys/kwsys_stl.h.in" \
   "${cmake_bootstrap_dir}/cmsys/stl/stl.h.in" KWSYS_NAMESPACE cmsys

for a in string vector map; do
  cmake_replace_string "${cmake_bootstrap_dir}/cmsys/stl/stl.h.in" \
    "${cmake_bootstrap_dir}/cmsys/stl/${a}" KWSYS_STL_HEADER ${a}
done

# Generate Makefile
dep="cmConfigure.h cmsys/Configure.hxx cmsys/Configure.h `cmake_escape \"${cmake_source_dir}\"`/Source/*.h"
objs=""
for a in ${CMAKE_CXX_SOURCES} ${CMAKE_C_SOURCES} ${KWSYS_CXX_SOURCES} ${KWSYS_C_SOURCES}; do
  objs="${objs} ${a}.o"
done

if [ "x${cmake_ansi_cxx_flags}" != "x" ]; then
  cmake_cxx_flags="${cmake_ansi_cxx_flags} ${cmake_cxx_flags}"
fi

if [ "x${cmake_c_flags}" != "x" ]; then
  cmake_c_flags="${cmake_c_flags} "
fi

if [ "x${cmake_cxx_flags}" != "x" ]; then
  cmake_cxx_flags="${cmake_cxx_flags} "
fi

cmake_c_flags="${cmake_c_flags}-I`cmake_escape \"${cmake_source_dir}/Source\"` \
  -I`cmake_escape \"${cmake_bootstrap_dir}\"`"
cmake_cxx_flags="${cmake_cxx_flags}-I`cmake_escape \"${cmake_source_dir}/Source\"` \
  -I`cmake_escape \"${cmake_bootstrap_dir}\"`"
echo "cmake: ${objs}" > "${cmake_bootstrap_dir}/Makefile"
echo "	${cmake_cxx_compiler} ${LDFLAGS} ${cmake_cxx_flags} ${objs} -o cmake" >> "${cmake_bootstrap_dir}/Makefile"
for a in ${CMAKE_CXX_SOURCES}; do
  src=`cmake_escape "${cmake_source_dir}/Source/${a}.cxx"`
  echo "${a}.o : ${src} ${dep}" >> "${cmake_bootstrap_dir}/Makefile"
  echo "	${cmake_cxx_compiler} ${cmake_cxx_flags} -c ${src} -o ${a}.o" >> "${cmake_bootstrap_dir}/Makefile"
done
for a in ${CMAKE_C_SOURCES}; do
  src=`cmake_escape "${cmake_source_dir}/Source/${a}.c"`
  echo "${a}.o : ${src} ${dep}" >> "${cmake_bootstrap_dir}/Makefile"
  echo "	${cmake_c_compiler} ${cmake_c_flags} -c ${src} -o ${a}.o" >> "${cmake_bootstrap_dir}/Makefile"
done
for a in ${KWSYS_C_SOURCES}; do
  src=`cmake_escape "${cmake_source_dir}/Source/kwsys/${a}.c"`
  echo "${a}.o : ${src} ${dep}" >> "${cmake_bootstrap_dir}/Makefile"
  echo "	${cmake_c_compiler} ${cmake_c_flags} -DKWSYS_NAMESPACE=cmsys -c ${src} -o ${a}.o" >> "${cmake_bootstrap_dir}/Makefile"
done
for a in ${KWSYS_CXX_SOURCES}; do
  src=`cmake_escape "${cmake_source_dir}/Source/kwsys/${a}.cxx"`
  echo "${a}.o : ${src} ${dep}" >> "${cmake_bootstrap_dir}/Makefile"
  echo "	${cmake_cxx_compiler} ${cmake_cxx_flags} -DKWSYS_NAMESPACE=cmsys -c ${src} -o ${a}.o" >> "${cmake_bootstrap_dir}/Makefile"
done
cat>>"${cmake_bootstrap_dir}/Makefile"<<EOF
rebuild_cache:
	cd "${cmake_binary_dir}" && "${cmake_source_dir}/bootstrap"
EOF

# Write our default settings to Bootstrap.cmk/InitialCacheFlags.cmake.
cat > "${cmake_bootstrap_dir}/InitialCacheFlags.cmake" <<EOF
# Generated by ${cmake_source_dir}/bootstrap
# Default cmake settings.  These may be overridden any settings below.
SET (CMAKE_INSTALL_PREFIX "${cmake_prefix_dir}" CACHE PATH "Install path prefix, prepended onto install directories." FORCE)
SET (CMAKE_DOC_DIR "${cmake_doc_dir}" CACHE PATH "Install location for documentation (relative to prefix)." FORCE)
SET (CMAKE_MAN_DIR "${cmake_man_dir}" CACHE PATH "Install location for man pages (relative to prefix)." FORCE)
SET (CMAKE_DATA_DIR "${cmake_data_dir}" CACHE PATH "Install location for data (relative to prefix)." FORCE)
EOF

# Add user-specified settings.  Handle relative-path case for
# specification of cmake_init_file.
(
cd "${cmake_binary_dir}"
if [ -f "${cmake_init_file}" ]; then
  cat "${cmake_init_file}" >> "${cmake_bootstrap_dir}/InitialCacheFlags.cmake"
fi
)

echo "---------------------------------------------"

# Run make to build bootstrap cmake
if [ "x${cmake_parallel_make}" != "x" ]; then
  ${cmake_make_processor} ${cmake_make_flags}
else
  ${cmake_make_processor}
fi
RES=$?
if [ "${RES}" -ne "0" ]; then
  cmake_error 9 "Problem while running ${cmake_make_processor}"
fi
cd "${cmake_binary_dir}"

# Set C, CXX, and MAKE environment variables, so that real real cmake will be
# build with same compiler and make
CC="${cmake_c_compiler}"
CXX="${cmake_cxx_compiler}"
MAKE="${cmake_make_processor}"
export CC
export CXX
export MAKE

# Run bootstrap CMake to configure real CMake
"${cmake_bootstrap_dir}/cmake" "${cmake_source_dir}" "-C${cmake_bootstrap_dir}/InitialCacheFlags.cmake"

echo "---------------------------------------------"

# And we are done. Now just run make
echo "CMake has bootstrapped.  Now run ${cmake_make_processor}."