-echo $ac_n "checking for POSIXized ISC""... $ac_c" 1>&6
-echo "configure:1038: checking for POSIXized ISC" >&5
-if test -d /etc/conf/kconfig.d &&
- grep _POSIX_VERSION /usr/include/sys/unistd.h >/dev/null 2>&1
-then
- echo "$ac_t""yes" 1>&6
- ISC=yes # If later tests want to check for ISC.
- cat >> confdefs.h <<\EOF
-#define _POSIX_SOURCE 1
+
+ echo $ac_n "checking for strerror in -lcposix""... $ac_c" 1>&6
+echo "configure:1037: checking for strerror in -lcposix" >&5
+ac_lib_var=`echo cposix'_'strerror | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lcposix $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 1045 "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 strerror();
+
+int main() {
+strerror()
+; return 0; }