+# -- Defines --
+
+if test `uname` = "A/UX"; then
+ # unter A/UX sollte _POSIX_SOURCE definiert sein.
+ AC_MSG_RESULT([detected A/UX, defining _POSIX_SOURCE])
+ CFLAGS="$CFLAGS -D_POSIX_SOURCE"
+fi
+
+if test `uname` = "HP-UX"; then
+ # unter HP-UX 11.11 muss _XOPEN_SOURCE_EXTENDED definiert sein.
+ AC_MSG_RESULT([detected HP-UX, defining _XOPEN_SOURCE_EXTENDED])
+ CFLAGS="$CFLAGS -D_XOPEN_SOURCE_EXTENDED"
+fi
+