inherited from usg5-3.h; ISC doesn't have libX11_s.
(LIBX11_SYSTEM): Link against the static -lc, not -lc_s.
so we might as well try getting rid of -traditional. */
#undef C_SWITCH_SYSTEM
-/* Martin Tomes <mt00@controls.eurotherm.co.uk> says that ISC has no
- libX11_s, as specified in s/usg5-3.h. */
+/* We indirectly #include s/usg5-3.h, which says to use libX11_s and
+ libc_s. Martin Tomes <mt00@controls.eurotherm.co.uk> says that ISC
+ has no libX11_s, and that linking with libc_s causes sbrk not to work. */
#undef LIB_X11_LIB
-
+#undef LIBX11_SYSTEM
+#define LIBX11_SYSTEM -lpt -lnls -lnsl_s -lc