/* s- file for Interactive (ISC) Unix version 3.0 on the 386. */
-#include "s/isc2-2.h"
+#include "isc2-2.h"
-/* These have been moved into s-isc2-2.h. */
-/* #define HAVE_SOCKETS
-#define HAVE_SELECT */
+/* This has been moved into isc2-2.h. */
+/* #define HAVE_SOCKETS */
/* This appears on 3.0, presumably as part of what SunSoft call X2. */
#undef NO_X_DESTROY_DATABASE
-/* mt00@etherm.co.uk says this is needed for process.c. */
-#define HAVE_TIMEVAL
+#ifdef __GNUC__ /* Currently we use -lcposix only with gcc */
+#define POSIX_SIGNALS
+
+/* We don't need the definition from usg5-3.h with POSIX_SIGNALS. */
+#undef sigsetmask
+#undef HAVE_SYSV_SIGPAUSE
+#endif
/* People say that using -traditional causes lossage with `const',
so we might as well try getting rid of -traditional. */
#undef C_SWITCH_SYSTEM
+
+/* 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
+
+/* TIOCGWINSZ isn't broken; you just have to know where to find it. */
+#undef BROKEN_TIOCGWINSZ
+#define NEED_SIOCTL
+
+/* We need either _XOPEN_SOURCE or _POSIX_SOURCE to import the posix
+ signal symbols; might as well use _XOPEN_SOURCE. Defining _SYSV3
+ ensures that we don't lose the traditional symbols as a side effect
+ from this or __STDC__ being defined. It can't hurt to Define
+ _XOPEN_SOURCE=500, the latest and greatest value as of this writing. */
+#define C_SWITCH_SYSTEM -D_XOPEN_SOURCE=500 -D_SYSV3
+
+#ifdef __GNUC__ /* Currently we use -lcposix only with gcc */
+/* This works around a bug in ISC 4.0 and 3.0; it fails
+ to clear the "POSIX process" flag on an exec.
+ It won't be needed for 4.1. */
+#define EXTRA_INITIALIZE __setostype (0)
+#endif
+
+/* arch-tag: c1aca3f2-813d-4c1c-ad64-ca6c20ec9bfb
+ (do not change this comment) */