# vim:ts=4
#
# Copyright (c) 2002-2012 Hypertriton, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
sub Test
{
# Look for a C++ compiler.
# XXX duplicated code between cc/cxx
print << 'EOF';
if [ "$CXX" = "" ]; then
for i in `echo $PATH |sed 's/:/ /g'`; do
if [ -x "${i}/cxx" ]; then
if [ -f "${i}/cxx" ]; then
CXX="${i}/cxx"
break
fi
elif [ -x "${i}/gcc" ]; then
if [ -f "${i}/gcc" ]; then
CXX="${i}/gcc"
break
fi
fi
done
if [ "$CXX" = "" ]; then
echo "*"
echo "* Unable to find a standard C++ compiler in PATH. You may need"
echo "* to set the CXX environment variable."
echo "*"
echo "Unable to find a C compiler in PATH." >> config.log
HAVE_CXX="no"
echo "no"
else
HAVE_CXX="yes"
echo "yes, ${CXX}"
echo "yes, ${CXX}" >> config.log
fi
else
echo "using ${CXX}"
fi
if [ "${HAVE_CXX}" = "yes" ]; then
$ECHO_N "checking whether the C++ compiler works..."
$ECHO_N "checking whether the C++ compiler works..." >> config.log
cat << 'EOT' > conftest.cc
#include
int main(void) { std::cout << "Hello world!" << std::endl; return 0; }
EOT
$CXX -o conftest conftest.cc -lstdc++ 2>>config.log
if [ $? != 0 ]; then
echo "no"
echo "no (test failed to compile)" >> config.log
HAVE_CXX="no"
else
echo "yes"
echo "yes" >> config.log
HAVE_CXX="yes"
fi
if [ "${HAVE_CXX}" = "yes" ]; then
if [ "${EXECSUFFIX}" = "" ]; then
EXECSUFFIX=""
for OUTFILE in conftest.exe conftest conftest.*; do
if [ -f $OUTFILE ]; then
case $OUTFILE in
*.c | *.cc | *.m | *.o | *.obj | *.bb | *.bbg | *.d | *.pdb | *.tds | *.xcoff | *.dSYM | *.xSYM )
;;
*.* )
EXECSUFFIX=`expr "$OUTFILE" : '[^.]*\(\..*\)'`
break ;;
* )
break ;;
esac;
fi
done
if [ "$EXECSUFFIX" != "" ]; then
echo "Detected executable suffix: $EXECSUFFIX" >> config.log
fi
EOF
MkSaveMK('EXECSUFFIX');
MkSaveDefine('EXECSUFFIX');
print << 'EOF';
fi
fi
rm -f conftest.cc conftest$EXECSUFFIX
TEST_CXXFLAGS=""
fi
EOF
MkIfTrue('${HAVE_CXX}');
MkPrintN('checking for c++ compiler warning options...');
MkCompileCXX('HAVE_CXX_WARNINGS', '-Wall -Werror', '-lstdc++', << 'EOF');
int main(void) { return (0); }
EOF
MkIfTrue('${HAVE_CXX_WARNINGS}');
MkDefine('TEST_CXXFLAGS', '-Wall -Werror');
MkEndif;
# Check for long double type.
MkPrintN('checking for long double...');
TryCompile('HAVE_LONG_DOUBLE', << 'EOF');
int
main(void)
{
long double ld = 0.1;
ld = 0;
return (0);
}
EOF
# Check for long long type.
MkPrintN('checking for long long...');
TryCompile('HAVE_LONG_LONG', << 'EOF');
int
main(void)
{
long long ll = 0.0;
unsigned long long ull = 0.0;
ll = 1.0;
ull = 1.0;
return (0);
}
EOF
MkPrintN('checking for cygwin environment...');
TryCompileFlagsCXX('HAVE_CYGWIN', '-mcygwin', << 'EOF');
#include
#include
#include
int
main(void) {
struct stat sb;
DWORD rv;
rv = GetFileAttributes("foo");
stat("foo", &sb);
return (0);
}
EOF
MkPrintN('checking for libtool --tag=CXX retardation...');
print 'cat << EOT > conftest.cc', "\n";
print << 'EOF';
#include
int main(void) { std::cout << "Hello world!" << std::endl; return 0; }
EOT
EOF
print << "EOF";
\$LIBTOOL --quiet --mode=compile --tag=CXX \$CXX \$CXXFLAGS \$TEST_CXXFLAGS -o \$testdir/conftest.o conftest.cc 2>>config.log
EOF
MkIf('"$?" = "0"');
MkPrint('yes');
MkDefine('LIBTOOLOPTS_CXX', '--tag=CXX');
MkElse;
MkPrint('no');
MkEndif;
MkSaveMK('LIBTOOLOPTS_CXX');
print 'rm -f conftest.cc $testdir/conftest$EXECSUFFIX', "\n";
# Preserve ${CXX} and ${CXXFLAGS}
MkSaveMK('CXX', 'CXXFLAGS');
MkEndif; # HAVE_CXX
}
sub Emul
{
my ($os, $osrel, $machine) = @_;
MkDefine('HAVE_IEEE754', 'yes');
MkSaveDefine('HAVE_IEEE754');
MkSaveUndef('HAVE_LONG_DOUBLE');
MkSaveUndef('HAVE_LONG_LONG');
MkSaveUndef('HAVE_CYGWIN');
return (1);
}
BEGIN
{
$TESTS{'cxx'} = \&Test;
$EMUL{'cxx'} = \&Emul;
$DESCR{'cxx'} = 'a C++ compiler';
}
;1