-and ignore the rest of this "Building" section. If it doesn't
-work or you are using another platform which you believe supports
-POSIX.1c threads then read on. Additional information may be in
-a platform-specific "hints" file in the hints/ subdirectory.
+and ignore the rest of this "Building" section. If not, continue
+from the "Problems" section.
+
+ * Linux 2.* (with the LinuxThreads library installed:
+ that's the linuxthreads and linuxthreads-devel RPMs
+ for RedHat)
+
+ * Tru64 UNIX (formerly Digital UNIX formerly DEC OSF/1)
+ (see additional note below)
+
+ * Solaris 2.* for recentish x (2.5 is OK)
+
+ * IRIX 6.2 or newer. 6.2 will require a few OS patches.
+ IMPORTANT: Without patch 2401 (or its replacement),
+ a kernel bug in IRIX 6.2 will cause your machine to
+ panic and crash when running threaded perl.
+ IRIX 6.3 and up should be OK. See lower down for patch details.
+
+ * AIX 4.1.5 or newer.
+
+ * FreeBSD 2.2.8 or newer.
+
+ * OpenBSD
+
+ * NeXTstep, OpenStep