configure

cygwin, 著名的在win32下模拟unix操作系统的东东

  SET_MAKE="MAKE=${MAKE-make}"
fi


# Test for builtin mem* functions.

ac_ext=C
# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='${CXX-g++} -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cxx_cross

cat > conftest.$ac_ext <<EOF
#line 1832 "configure"
#include "confdefs.h"

#include <string.h>
void foo(char *s, int c, size_t n)
{
  __builtin_memset(s, c, n);
}

int main() {
 
; return 0; }
EOF
if { (eval echo configure:1845: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  use_builtin_memset=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  use_builtin_memset=no
fi
rm -f conftest*
if test $use_builtin_memset = "yes"; then
  cat >> confdefs.h <<\EOF
#define HAVE_BUILTIN_MEMSET 1
EOF

fi
ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CPP $CPPFLAGS'
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cc_cross


mt_safe_val=1
MT_SAFE=yes

# Check whether --enable-threadsafe or --disable-threadsafe was given.
if test "${enable_threadsafe+set}" = set; then
  enableval="$enable_threadsafe"
  case "${enableval}" in
yes)
    ;;
runtime)
  mt_safe_val=2
  MT_SAFE=yes
  ;;
no)
  mt_safe_val=0
  MT_SAFE=no
  ;;
esac

fi


# Check whether --enable-extra-threadsafe-checking or --disable-extra-threadsafe-checking was given.
if test "${enable_extra_threadsafe_checking+set}" = set; then
  enableval="$enable_extra_threadsafe_checking"
  case "${enableval}" in
yes)
  mt_safe_val=1
  MT_SAFE=yes
  cat >> confdefs.h <<\EOF
#define _CYG_THREAD_FAILSAFE 1
EOF

  ;;
no)
    ;;
esac

fi


if test "$MT_SAFE" = "yes"; then
  cat >> confdefs.h <<EOF
#define _MT_SAFE $mt_safe_val
EOF

fi



# Check whether --enable-debugging or --disable-debugging was given.
if test "${enable_debugging+set}" = set; then
  enableval="$enable_debugging"
  case "${enableval}" in
yes)	 cat >> confdefs.h <<\EOF
#define DEBUGGING 1
EOF
 ;;
no)	 ;;
esac

fi


MALLOC_OFILES=
# Check whether --enable-malloc-debugging or --disable-malloc-debugging was given.
if test "${enable_malloc_debugging+set}" = set; then
  enableval="$enable_malloc_debugging"
  case "${enableval}" in
yes)	 cat >> confdefs.h <<\EOF
#define MALLOC_DEBUG 1
EOF

	 MALLOC_OFILES=dlmalloc.o
	 ;;
no)	 ;;
esac

fi


# Check whether --enable-vfork or --disable-vfork was given.
if test "${enable_vfork+set}" = set; then
  enableval="$enable_vfork"
  vfork="${enableval}"
]
fi


case "$vfork" in
no)	 ;;
yes|*)	 cat >> confdefs.h <<EOF
#define NEWVFORK 1
EOF
 ;;
esac




echo $ac_n "checking if newlib is part of the build tree""... $ac_c" 1>&6
echo "configure:1970: checking if newlib is part of the build tree" >&5

EXE_LDFLAGS=
if test -d ../newlib
then
  echo "$ac_t""yes" 1>&6
  EXE_LDFLAGS="-B../../newlib/ -B../"
else
  echo "$ac_t""no" 1>&6
fi
 

if test x"$EXE_LDFLAGS" = x
then
  echo $ac_n "checking if installed newlib needed""... $ac_c" 1>&6
echo "configure:1985: checking if installed newlib needed" >&5
  cat > conftest.$ac_ext <<EOF
#line 1987 "configure"
#include "confdefs.h"

int main() {
/* main already defined */
    
; return 0; }
EOF
if { (eval echo configure:1995: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  echo "$ac_t""no" 1>&6
    
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  echo "$ac_t""yes" 1>&6
    echo "configure: warning: newlib not found - utility .exe's may not link" 1>&2
fi
rm -f conftest*
fi


case "$target_cpu" in
   i386|i486|i586|i686) DLL_ENTRY="_dll_entry@12"
		DEF_DLL_ENTRY="dll_entry@12"
		ALLOCA="_alloca"
		CONFIG_DIR="i386"  ;;
   powerpc*)	DLL_ENTRY="dll_entry"
		DEF_DLL_ENTRY="dll_entry"
		ALLOCA=" __allocate_stack"
		CONFIG_DIR="ppc"  ;;
   *)		{ echo "configure: error: Invalid target processor \"$target_cpu\"" 1>&2; exit 1; } ;;
esac






trap '' 1 2 15
cat > confcache <<\EOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs.  It is not useful on other systems.
# If it contains results you don't want to keep, you may remove or edit it.
#
# By default, configure uses ./config.cache as the cache file,
# creating it if it does not exist already.  You can give configure
# the --cache-file=FILE option to use a different cache file; that is
# what configure does when it calls configure scripts in
# subdirectories, so they share the cache.
# Giving --cache-file=/dev/null disables caching, for debugging configure.
# config.status only pays attention to the cache file if you give it the
# --recheck option to rerun configure.
#
EOF
# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
# So, don't put newlines in cache variables' values.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
(set) 2>&1 |
  case `(ac_space=' '; set | grep ac_space) 2>&1` in
  *ac_space=\ *)
    # `set' does not quote correctly, so add quotes (double-quote substitution
    # turns \\\\ into \\, and sed turns \\ into \).
    sed -n \
      -e "s/'/'\\\\''/g" \
      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
    ;;
  *)
    # `set' quotes correctly as required by POSIX, so do not add quotes.
    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
    ;;
  esac >> confcache
if cmp -s $cache_file confcache; then
  :
else
  if test -w $cache_file; then
    echo "updating cache $cache_file"
    cat confcache > $cache_file
  else
    echo "not updating unwritable cache $cache_file"
  fi
fi
rm -f confcache

trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

# Any assignment to VPATH causes Sun make to only execute
# the first set of double-colon rules, so remove it if not needed.
# If there is a colon in the path, we need to keep it.
if test "x$srcdir" = x.; then
  ac_vpsub='/^[ 	]*VPATH[ 	]*=[^:]*$/d'
fi

trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15

DEFS=-DHAVE_CONFIG_H

# Without the "./", some shells look in PATH for config.status.
: ${CONFIG_STATUS=./config.status}

echo creating $CONFIG_STATUS
rm -f $CONFIG_STATUS
cat > $CONFIG_STATUS <<EOF
#! /bin/sh
# Generated automatically by configure.
# Run this file to recreate the current configuration.
# This directory was configured as follows,
# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
#
# $0 $ac_configure_args
#
# Compiler output produced by configure, useful for debugging
# configure, is in ./config.log if it exists.

ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
for ac_option
do
  case "\$ac_option" in
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
    echo "$CONFIG_STATUS generated by autoconf version 2.13"
    exit 0 ;;
  -help | --help | --hel | --he | --h)
    echo "\$ac_cs_usage"; exit 0 ;;
  *) echo "\$ac_cs_usage"; exit 1 ;;
  esac
done

ac_given_srcdir=$srcdir
ac_given_INSTALL="$INSTALL"

trap 'rm -fr `echo "Makefile cygwin.def:cygwin.din config.h" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
EOF
cat >> $CONFIG_STATUS <<EOF

# Protect against being on the right side of a sed subst in config.status.
sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
 s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
$ac_vpsub
$extrasub
s%@SHELL@%$SHELL%g
s%@CFLAGS@%$CFLAGS%g
s%@CPPFLAGS@%$CPPFLAGS%g
s%@CXXFLAGS@%$CXXFLAGS%g
s%@FFLAGS@%$FFLAGS%g
s%@DEFS@%$DEFS%g
s%@LDFLAGS@%$LDFLAGS%g
s%@LIBS@%$LIBS%g
s%@exec_prefix@%$exec_prefix%g
s%@prefix@%$prefix%g
s%@program_transform_name@%$program_transform_name%g
s%@bindir@%$bindir%g
s%@sbindir@%$sbindir%g
s%@libexecdir@%$libexecdir%g
s%@datadir@%$datadir%g
s%@sysconfdir@%$sysconfdir%g
s%@sharedstatedir@%$sharedstatedir%g
s%@localstatedir@%$localstatedir%g
s%@libdir@%$libdir%g
s%@includedir@%$includedir%g
s%@oldincludedir@%$oldincludedir%g
s%@infodir@%$infodir%g
s%@mandir@%$mandir%g
s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
s%@INSTALL_DATA@%$INSTALL_DATA%g
s%@host@%$host%g
s%@host_alias@%$host_alias%g
s%@host_cpu@%$host_cpu%g
s%@host_vendor@%$host_vendor%g
s%@host_os@%$host_os%g
s%@target@%$target%g
s%@target_alias@%$target_alias%g
s%@target_cpu@%$target_cpu%g
s%@target_vendor@%$target_vendor%g
s%@target_os@%$target_os%g
s%@build@%$build%g
s%@build_alias@%$build_alias%g
s%@build_cpu@%$build_cpu%g
s%@build_vendor@%$build_vendor%g
s%@build_os@%$build_os%g
s%@CC@%$CC%g
s%@CXX@%$CXX%g
s%@all_host@%$all_host%g
s%@install_host@%$install_host%g
s%@AR@%$AR%g
s%@AS@%$AS%g
s%@RANLIB@%$RANLIB%g
s%@LD@%$LD%g
s%@NM@%$NM%g
s%@DLLTOOL@%$DLLTOOL%g
s%@WINDRES@%$WINDRES%g
s%@CPP@%$CPP%g
s%@ALLOCA@%$ALLOCA%g
s%@SET_MAKE@%$SET_MAKE%g
s%@MT_SAFE@%$MT_SAFE%g
s%@EXE_LDFLAGS@%$EXE_LDFLAGS%g
s%@MALLOC_OFILES@%$MALLOC_OFILES%g
s%@DLL_ENTRY@%$DLL_ENTRY%g
s%@DEF_DLL_ENTRY@%$DEF_DLL_ENTRY%g
s%@CONFIG_DIR@%$CONFIG_DIR%g

CEOF
EOF

cat >> $CONFIG_STATUS <<\EOF

# Split the substitutions into bite-sized pieces for seds with
# small command number limits, like on Digital OSF/1 and HP-UX.
ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
ac_file=1 # Number of current file.
ac_beg=1 # First line for current file.
ac_end=$ac_max_sed_cmds # Line after last line for current file.
ac_more_lines=:
ac_sed_cmds=""
while $ac_more_lines; do
  if test $ac_beg -gt 1; then
    sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
  else
    sed "${ac_end}q" conftest.subs > conftest.s$ac_file
  fi
  if test ! -s conftest.s$ac_file; then
    ac_more_lines=false
    rm -f conftest.s$ac_file
  else
    if test -z "$ac_sed_cmds"; then
      ac_sed_cmds="sed -f conftest.s$ac_file"
    else
      ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
    fi
    ac_file=`expr $ac_file + 1`
    ac_beg=$ac_end
    ac_end=`expr $ac_end + $ac_max_sed_cmds`
  fi
done
if test -z "$ac_sed_cmds"; then
  ac_sed_cmds=cat
fi
EOF

cat >> $CONFIG_STATUS <<EOF

CONFIG_FILES=\${CONFIG_FILES-"Makefile cygwin.def:cygwin.din"}
EOF
cat >> $CONFIG_STATUS <<\EOF
for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case "$ac_file" in
  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
  *) ac_file_in="${ac_file}.in" ;;
  esac

  # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.

  # Remove last slash and all that follows it.  Not all systems have dirname.
  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
    # The file is in a subdirectory.
    test ! -d "$ac_dir" && mkdir "$ac_dir"
    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
    # A "../" for each directory in $ac_dir_suffix.
    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
  else
    ac_dir_suffix= ac_dots=
  fi

  case "$ac_given_srcdir" in
  .)  srcdir=.
      if test -z "$ac_dots"; then top_srcdir=.
      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
  *) # Relative path.
    srcdir="$ac_