+
+ cf_save_LIBS="$LIBS"
+ LIBS="$LIBS -lm"
+ echo "$as_me:19002: checking if -lm is available for math functions" >&5
+echo $ECHO_N "checking if -lm is available for math functions... $ECHO_C" >&6
+if test "${cf_cv_have_libm+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ cat >"conftest.$ac_ext" <<_ACEOF
+#line 19009 "configure"
+#include "confdefs.h"
+
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <math.h>
+
+int
+main (void)
+{
+double x = rand(); printf("result = %g\\n", pow(sin(x),x))
+ ;
+ return 0;
+}
+_ACEOF
+rm -f "conftest.$ac_objext" "conftest$ac_exeext"
+if { (eval echo "$as_me:19025: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:19028: \$? = $ac_status" >&5
+ (exit "$ac_status"); } &&
+ { ac_try='test -s "conftest$ac_exeext"'
+ { (eval echo "$as_me:19031: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:19034: \$? = $ac_status" >&5
+ (exit "$ac_status"); }; }; then
+ cf_cv_have_libm=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat "conftest.$ac_ext" >&5
+cf_cv_have_libm=no
+fi
+rm -f "conftest.$ac_objext" "conftest$ac_exeext" "conftest.$ac_ext"
+fi
+echo "$as_me:19044: result: $cf_cv_have_libm" >&5
+echo "${ECHO_T}$cf_cv_have_libm" >&6
+ LIBS="$cf_save_LIBS"
+
+ if test "$cf_cv_have_libm" = yes
+ then
+ MATH_LIB=-lm
+ fi
+else
+ cf_cv_have_libm=yes
+fi
+
+if test "$cf_cv_have_libm" = yes
+then
+
+cat >>confdefs.h <<\EOF
+#define HAVE_MATH_FUNCS 1
+EOF
+