+# do we need the math library?
+case "${need_libm}" in
+yes)
+ LIBM=
+case "$host" in
+*-*-beos* | *-*-cygwin* | *-*-pw32*)
+ # These system don't have libm
+ ;;
+*-ncr-sysv4.3*)
+ echo $ac_n "checking for _mwvalidcheckl in -lmw""... $ac_c" 1>&6
+echo "configure:5766: checking for _mwvalidcheckl in -lmw" >&5
+ac_lib_var=`echo mw'_'_mwvalidcheckl | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lmw $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 5774 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char _mwvalidcheckl();
+
+int main() {
+_mwvalidcheckl()
+; return 0; }
+EOF
+if { (eval echo configure:5785: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ LIBM="-lmw"
+else
+ echo "$ac_t""no" 1>&6
+fi
+
+ echo $ac_n "checking for main in -lm""... $ac_c" 1>&6
+echo "configure:5806: checking for main in -lm" >&5
+ac_lib_var=`echo m'_'main | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lm $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 5814 "configure"
+#include "confdefs.h"
+
+int main() {
+main()
+; return 0; }
+EOF
+if { (eval echo configure:5821: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ LIBM="$LIBM -lm"
+else
+ echo "$ac_t""no" 1>&6
+fi
+
+ ;;
+*)
+ echo $ac_n "checking for main in -lm""... $ac_c" 1>&6
+echo "configure:5844: checking for main in -lm" >&5
+ac_lib_var=`echo m'_'main | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lm $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 5852 "configure"
+#include "confdefs.h"
+
+int main() {
+main()
+; return 0; }
+EOF
+if { (eval echo configure:5859: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ LIBM="-lm"
+else
+ echo "$ac_t""no" 1>&6
+fi
+
+ ;;
+esac
+
+
+ ;;
+esac
+