configure

一个通用的数学库

if (autoconf --version) < /dev/null > /dev/null 2>&1; then
   AUTOCONF=autoconf
   echo "$ac_t""found" 1>&6
else
   AUTOCONF="$missing_dir/missing autoconf"
   echo "$ac_t""missing" 1>&6
fi

echo $ac_n "checking for working automake""... $ac_c" 1>&6
echo "configure:839: checking for working automake" >&5
# Run test in a subshell; some versions of sh will print an error if
# an executable is not found, even if stderr is redirected.
# Redirect stdin to placate older versions of autoconf.  Sigh.
if (automake --version) < /dev/null > /dev/null 2>&1; then
   AUTOMAKE=automake
   echo "$ac_t""found" 1>&6
else
   AUTOMAKE="$missing_dir/missing automake"
   echo "$ac_t""missing" 1>&6
fi

echo $ac_n "checking for working autoheader""... $ac_c" 1>&6
echo "configure:852: checking for working autoheader" >&5
# Run test in a subshell; some versions of sh will print an error if
# an executable is not found, even if stderr is redirected.
# Redirect stdin to placate older versions of autoconf.  Sigh.
if (autoheader --version) < /dev/null > /dev/null 2>&1; then
   AUTOHEADER=autoheader
   echo "$ac_t""found" 1>&6
else
   AUTOHEADER="$missing_dir/missing autoheader"
   echo "$ac_t""missing" 1>&6
fi

echo $ac_n "checking for working makeinfo""... $ac_c" 1>&6
echo "configure:865: checking for working makeinfo" >&5
# Run test in a subshell; some versions of sh will print an error if
# an executable is not found, even if stderr is redirected.
# Redirect stdin to placate older versions of autoconf.  Sigh.
if (makeinfo --version) < /dev/null > /dev/null 2>&1; then
   MAKEINFO=makeinfo
   echo "$ac_t""found" 1>&6
else
   MAKEINFO="$missing_dir/missing makeinfo"
   echo "$ac_t""missing" 1>&6
fi







# Find a good install program.  We prefer a C program (faster),
# so one script is as good as another.  But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# ./install, which can be erroneously created by make from ./install.sh.
echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
echo "configure:895: checking for a BSD compatible install" >&5
if test -z "$INSTALL"; then
if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
    IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS=":"
  for ac_dir in $PATH; do
    # Account for people who put trailing slashes in PATH elements.
    case "$ac_dir/" in
    /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
    *)
      # OSF1 and SCO ODT 3.0 have their own names for install.
      # Don't use installbsd from OSF since it installs stuff as root
      # by default.
      for ac_prog in ginstall scoinst install; do
        if test -f $ac_dir/$ac_prog; then
	  if test $ac_prog = install &&
            grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
	    # AIX install.  It has an incompatible calling convention.
	    :
	  else
	    ac_cv_path_install="$ac_dir/$ac_prog -c"
	    break 2
	  fi
	fi
      done
      ;;
    esac
  done
  IFS="$ac_save_IFS"

fi
  if test "${ac_cv_path_install+set}" = set; then
    INSTALL="$ac_cv_path_install"
  else
    # As a last resort, use the slow shell script.  We don't cache a
    # path for INSTALL within a source directory, because that will
    # break other packages using the cache if that directory is
    # removed, or if the path is relative.
    INSTALL="$ac_install_sh"
  fi
fi
echo "$ac_t""$INSTALL" 1>&6

# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'

test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'

test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'


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


echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
echo "configure:957: checking for Cygwin environment" >&5
if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 962 "configure"
#include "confdefs.h"

int main() {

#ifndef __CYGWIN__
#define __CYGWIN__ __CYGWIN32__
#endif
return __CYGWIN__;
; return 0; }
EOF
if { (eval echo configure:973: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_cygwin=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_cygwin=no
fi
rm -f conftest*
rm -f conftest*
fi

echo "$ac_t""$ac_cv_cygwin" 1>&6
CYGWIN=
test "$ac_cv_cygwin" = yes && CYGWIN=yes

echo $ac_n "checking if we really have cygwin""... $ac_c" 1>&6
echo "configure:991: checking if we really have cygwin" >&5
case "$target" in
  *cyg*)
  echo "$ac_t""Environment is indeed cygwin." 1>&6
  ;;
  *)
  echo "$ac_t""Environment is not cygwin." 1>&6
  ;;
esac

for ac_prog in $CCC c++ g++ gcc CC cxx cc++ cl
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1006: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_CXX'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
  ac_dummy="$PATH"
  for ac_dir in $ac_dummy; do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      ac_cv_prog_CXX="$ac_prog"
      break
    fi
  done
  IFS="$ac_save_ifs"
fi
fi
CXX="$ac_cv_prog_CXX"
if test -n "$CXX"; then
  echo "$ac_t""$CXX" 1>&6
else
  echo "$ac_t""no" 1>&6
fi

test -n "$CXX" && break
done
test -n "$CXX" || CXX="gcc"


echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
echo "configure:1038: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5

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 1049 "configure"
#include "confdefs.h"

int main(){return(0);}
EOF
if { (eval echo configure:1054: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  ac_cv_prog_cxx_works=yes
  # If we can't run a trivial program, we are probably using a cross compiler.
  if (./conftest; exit) 2>/dev/null; then
    ac_cv_prog_cxx_cross=no
  else
    ac_cv_prog_cxx_cross=yes
  fi
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  ac_cv_prog_cxx_works=no
fi
rm -fr conftest*
ac_ext=C
# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$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

echo "$ac_t""$ac_cv_prog_cxx_works" 1>&6
if test $ac_cv_prog_cxx_works = no; then
  { echo "configure: error: installation or configuration problem: C++ compiler cannot create executables." 1>&2; exit 1; }
fi
echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
echo "configure:1080: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
echo "$ac_t""$ac_cv_prog_cxx_cross" 1>&6
cross_compiling=$ac_cv_prog_cxx_cross

echo $ac_n "checking whether we are using GNU C++""... $ac_c" 1>&6
echo "configure:1085: checking whether we are using GNU C++" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.C <<EOF
#ifdef __GNUC__
  yes;
#endif
EOF
if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1094: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  ac_cv_prog_gxx=yes
else
  ac_cv_prog_gxx=no
fi
fi

echo "$ac_t""$ac_cv_prog_gxx" 1>&6

if test $ac_cv_prog_gxx = yes; then
  GXX=yes
else
  GXX=
fi

ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS=
echo $ac_n "checking whether ${CXX-g++} accepts -g""... $ac_c" 1>&6
echo "configure:1113: checking whether ${CXX-g++} accepts -g" >&5
if eval "test \"`echo '$''{'ac_cv_prog_cxx_g'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  echo 'void f(){}' > conftest.cc
if test -z "`${CXX-g++} -g -c conftest.cc 2>&1`"; then
  ac_cv_prog_cxx_g=yes
else
  ac_cv_prog_cxx_g=no
fi
rm -f conftest*

fi

echo "$ac_t""$ac_cv_prog_cxx_g" 1>&6
if test "$ac_test_CXXFLAGS" = set; then
  CXXFLAGS="$ac_save_CXXFLAGS"
elif test $ac_cv_prog_cxx_g = yes; then
  if test "$GXX" = yes; then
    CXXFLAGS="-g -O2"
  else
    CXXFLAGS="-g"
  fi
else
  if test "$GXX" = yes; then
    CXXFLAGS="-O2"
  else
    CXXFLAGS=
  fi
fi


compiler="none"
if test "$GXX" = yes; then
  compiler=gnucc
fi

if test $compiler = "none"; then echo $ac_n "checking whether we are using KAI C++""... $ac_c" 1>&6
echo "configure:1151: checking whether we are using KAI C++" >&5
if eval "test \"`echo '$''{'KAI_CXX'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.c <<EOF
# if defined(__KCC)
  yes;
#endif
EOF
if { ac_try='${CXX} -E conftest.c'; { (eval echo configure:1160: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  KAI_CXX=yes
  compiler=kaicc
else
  KAI_CXX=no
fi
fi

echo "$ac_t""$KAI_CXX" 1>&6   ; fi
if test $compiler = "none"; then echo $ac_n "checking whether we are using SGI MIPSpro C++""... $ac_c" 1>&6
echo "configure:1170: checking whether we are using SGI MIPSpro C++" >&5
if eval "test \"`echo '$''{'SGI_CXX'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.c <<EOF
# if defined(__sgi) && !defined(__GNUC__)
  yes;
#endif
EOF
if { ac_try='${CXX} -E conftest.c'; { (eval echo configure:1179: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  SGI_CXX=yes
  compiler=sgicc
else
  SGI_CXX=no
fi
fi

echo "$ac_t""$SGI_CXX" 1>&6   ; fi
if test $compiler = "none"; then echo $ac_n "checking whether we are using Metrowerks Codewarrior C++""... $ac_c" 1>&6
echo "configure:1189: checking whether we are using Metrowerks Codewarrior C++" >&5
if eval "test \"`echo '$''{'MWERKS_CXX'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.c <<EOF
#ifdef __MWERKS__
  yes;
#endif
EOF
if { ac_try='${CXX} -E conftest.c'; { (eval echo configure:1198: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  MWERKS_CXX=yes
  compiler=mwerks
else
  MWERKS_CXX=no
fi
fi

echo "$ac_t""$MWERKS_CXX" 1>&6  ; fi
if test $compiler = "none"; then echo $ac_n "checking whether we are using Intel C++""... $ac_c" 1>&6
echo "configure:1208: checking whether we are using Intel C++" >&5
if eval "test \"`echo '$''{'INTEL_CXX'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.c <<EOF
# if defined(__ICL)
  yes;
#endif
EOF
if { ac_try='${CXX} -E conftest.c'; { (eval echo configure:1217: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  INTEL_CXX=yes
  compiler=intelcc
else
  INTEL_CXX=no
fi
fi

echo "$ac_t""$INTEL_CXX" 1>&6 ; fi
if test $compiler = "none"; then echo $ac_n "checking whether we are using Visual C++""... $ac_c" 1>&6
echo "configure:1227: checking whether we are using Visual C++" >&5
if eval "test \"`echo '$''{'MSVCPP_CXX'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.c <<EOF
#if defined(_MSC_VER) && !defined(__MWERKS__) && !defined(__ICL)
  yes;
#endif
EOF
if { ac_try='${CXX} -E conftest.c'; { (eval echo configure:1236: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  MSVCPP_CXX=yes
  compiler=msvcpp
else
  MSVCPP_CXX=no
fi
fi