CFLAGS="$CFLAGS -c -o conftest.lo"  echo "$progname:818: checking if $compiler supports -c -o file.lo" >&5if { (eval echo $progname:819: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.lo; then    # The compiler can only warn and ignore the option if not recognized    # So say no if there are warnings      if test -s conftest.err; then	echo "$ac_t"no 1>&6	compiler_o_lo=no      else	echo "$ac_t"yes 1>&6	compiler_o_lo=yes      fi  else    # Append any errors to the config.log.    cat conftest.err 1>&5    compiler_o_lo=no    echo "$ac_t"no 1>&6  fi  CFLAGS="$save_CFLAGS"  $rm conftest*else  compiler_o_lo=nofi# Check to see if we can do hard links to lock some files if neededhard_links="nottested"if test "$compiler_c_o" = no && test "$need_locks" != no; then  # do not overwrite the value of need_locks provided by the user  echo $ac_n "checking if we can lock with hard links... $ac_c" 1>&6  hard_links=yes  $rm conftest*  ln conftest.a conftest.b 2>/dev/null && hard_links=no  touch conftest.a  ln conftest.a conftest.b 2>&5 || hard_links=no  ln conftest.a conftest.b 2>/dev/null && hard_links=no  echo "$ac_t$hard_links" 1>&6  $rm conftest*  if test "$hard_links" = no; then    echo "*** WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2    need_locks=warn  fielse  need_locks=nofiif test "$with_gcc" = yes; then  # Check to see if options -fno-rtti -fno-exceptions are supported by compiler  echo $ac_n "checking if $compiler supports -fno-rtti -fno-exceptions ... $ac_c" 1>&6  $rm conftest*  echo "int some_variable = 0;" > conftest.c  save_CFLAGS="$CFLAGS"  CFLAGS="$CFLAGS -fno-rtti -fno-exceptions -c conftest.c"  echo "$progname:870: checking if $compiler supports -fno-rtti -fno-exceptions" >&5  if { (eval echo $progname:871: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.o; then    # The compiler can only warn and ignore the option if not recognized    # So say no if there are warnings      if test -s conftest.err; then	echo "$ac_t"no 1>&6	compiler_rtti_exceptions=no      else	echo "$ac_t"yes 1>&6	compiler_rtti_exceptions=yes      fi  else    # Append any errors to the config.log.    cat conftest.err 1>&5    compiler_rtti_exceptions=no    echo "$ac_t"no 1>&6  fi  CFLAGS="$save_CFLAGS"  $rm conftest*  if test "$compiler_rtti_exceptions" = "yes"; then    no_builtin_flag=' -fno-builtin -fno-rtti -fno-exceptions'  else    no_builtin_flag=' -fno-builtin'  fi  fi# Check for any special shared library compilation flags.if test -n "$special_shlib_compile_flags"; then  echo "$progname: warning: \`$CC' requires \`$special_shlib_compile_flags' to build shared libraries" 1>&2  if echo "$old_CC $old_CFLAGS " | egrep -e "[ 	]$special_shlib_compile_flags[ 	]" >/dev/null; then :  else    echo "$progname: add \`$special_shlib_compile_flags' to the CC or CFLAGS env variable and reconfigure" 1>&2    can_build_shared=no  fifiecho $ac_n "checking if $compiler static flag $link_static_flag works... $ac_c" 1>&6$rm conftest*echo 'main(){return(0);}' > conftest.csave_LDFLAGS="$LDFLAGS"LDFLAGS="$LDFLAGS $link_static_flag"echo "$progname:914: checking if $compiler static flag $link_static_flag works" >&5if { (eval echo $progname:915: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then  echo "$ac_t$link_static_flag" 1>&6else  echo "$ac_t"none 1>&6  link_static_flag=fiLDFLAGS="$save_LDFLAGS"$rm conftest*if test -z "$LN_S"; then  # Check to see if we can use ln -s, or we need hard links.  echo $ac_n "checking whether ln -s works... $ac_c" 1>&6  $rm conftest.dat  if ln -s X conftest.dat 2>/dev/null; then    $rm conftest.dat    LN_S="ln -s"  else    LN_S=ln  fi  if test "$LN_S" = "ln -s"; then    echo "$ac_t"yes 1>&6  else    echo "$ac_t"no 1>&6  fifi# Make sure LD is an absolute path.if test -z "$LD"; then  ac_prog=ld  if test "$with_gcc" = yes; then    # Check if gcc -print-prog-name=ld gives a path.    echo $ac_n "checking for ld used by GCC... $ac_c" 1>&6    echo "$progname:947: checking for ld used by GCC" >&5    ac_prog=`($CC -print-prog-name=ld) 2>&5`    case "$ac_prog" in    # Accept absolute paths.    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