+int main() {
+main()
+; return 0; }
+EOF
+if { (eval echo configure:1639: \"$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 "$ac_t""yes" 1>&6
+ ac_m_library="yes"
+else
+ echo "$ac_t""no" 1>&6
+ac_m_library="no"
+fi
+
+if test "$ac_m_library" != yes; then
+ { echo "configure: error: "standard math library not found"" 1>&2; exit 1; }
+fi
+
+
+
+
+
+
+echo $ac_n "checking for strerror""... $ac_c" 1>&6
+echo "configure:1670: checking for strerror" >&5
+if eval "test \"`echo '$''{'ac_cv_func_strerror'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 1675 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char strerror(); below. */
+#include <assert.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 strerror();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_strerror) || defined (__stub___strerror)
+choke me
+#else
+strerror();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:1698: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_func_strerror=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_func_strerror=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'strerror`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ :
+else
+ echo "$ac_t""no" 1>&6
+{ echo "configure: error: "need strerror function"" 1>&2; exit 1; }
+
+fi