AM_CONDITIONAL(USING_POSIX_PLATFORM, test "$PLATFORM" = Posix)
AM_CONDITIONAL(USING_ECOS_PLATFORM, test "$PLATFORM" = Ecos)
+case "$host" in
+ *-darwin*) DARWIN_CRT=true ;;
+ *) DARWIN_CRT=false ;;
+esac
+AM_CONDITIONAL(USING_DARWIN_CRT, $DARWIN_CRT)
+
# These may not be defined in a non-ANS conformant embedded system.
# FIXME: Should these case a runtime exception in that case?
AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME, 1,