--- rpl/README	2010/05/22 21:45:49	1.7
+++ rpl/README	2010/08/26 17:56:18	1.12
@@ -25,9 +25,9 @@ symbolic and scientific computations.
 	- libtool 1.5 or newer. To build RPL/2 on Mac OSX, you should have to
 	add libtool m4 path in tools/file-*/configure.ac and
 	tools/file-*/Makefile.am;
-	- gcc-4.3 or newer;
-	- g++-4.3 or newer;
-	- gfortran-4.3 or newer.
+	- gcc-4.4 or newer;
+	- g++-4.4 or newer;
+	- gfortran-4.4 or newer.
 
 	RPL/2 build process invoques automake and autoconf.
 
@@ -40,56 +40,41 @@ flags.
 
   * RPL/2 is known to run on :
 
-	- Linux (kernel 2.6.26 and above) on i386, amd64, ppc32, sparc32,
-		sparc64, alpha. Test distribution is Debian. Warning, you have to
-		use NPTL, not LinuxThreads due to a bug in sem_post() that is not
-		async safe.
-	- Solaris 9 and above on i386, amd64, sparc32 (only Solaris 9) and sparc64.
+	- Linux (kernel 2.6.26 and above). Test distribution is Debian.
+	- Solaris 8 and above.
 		It can be built out of the box on Solaris in a 32bits userland. For a
 		64bits executable, you have to modify some generated makefiles or
 		specify some options. See 64bits on Solaris.
-	- FreeBSD 7.x on i386. I have installed a FreeBSD 7.0, upgraded to 7.2
-		and RPL/2 ran without any trouble. RPL/2 does not run on FreeBSD 8.0
-		because sig_into_t struct is not filled. Someone has reported that
-		FreeBSD 7.2 did not filled this struct too...
-	- NetBSD 4.0 and above with a restriction. NetBSD's sigpending
-		is broken and it is impossible to use DETACH intrinsic. Bug report
-		has been done and this bug should be fixed in next NetBSD release.
-		Sigpending has been fixed in NetBSD 5.0 and RPL/2 runs fine.
+	- FreeBSD 7.x. I have installed a FreeBSD 7.0, upgraded to 7.2
+		and RPL/2 ran without any trouble. RPL/2 does not run on early
+		FreeBSD 8.0 because sig_info_t struct is not filled. This bug is now
+		fixed. Someone has reported that FreeBSD 7.2 did not filled this
+		struct too...
+	- NetBSD 5.0 and above.
+	- OpenBSD 4.8 and above.
+	- Windows with Cygwin (>= 1.7.5).
+	- OS/2 and eComStation with EMX (>= 0.9d). You probably have to
+		recreate configure script and makefiles with autoreconf.
+	- Mac OS X.
 
   * RPL/2 should run on :
 
+	- AIX
 	- HP-UX (10.20 and above), but not tested for a long time.
-	- Linux (2.6.26 and above) on ppc64 and other hardware (arm, hppa...) or
-		with other distributions than Debian.
-	- FreeBSD 7.0 and above on other architecture than i386. Please not
-		that I cannot reproduce sig_info_t bug and I do not have more
-		information.
-	- NetBSD 4.0 and above on other architecture than sparc32 with restriction
-		due to sigpending bug.
-	- Mac OS X.
+	- NetBSD 4.0 and above with restriction due to sigpending bug.
 
 	Any information about RPL/2 on these last operating systems are welcome.
 
   * RPL/2 is not supported on :
 
-	- OpenBSD due to a major bug in sigaltstack syscall when a program is
-		linked with -lthread. As this bug comes from OpenBSD libraries,
-		OpenBSD port has to wait for a fixed sigaltstack. RPL/2 uses pselect()
-		that is unavailable too.
 	- OpenVMS (work in progress) on Alpha and Integrity due to some bugs in GNV.
 		RPL/2 never works on OpenVMS VAX because GNV is too old on this
 		architecture.
-	- Hurd.
+	- Hurd because sig_info_t is not filled.
 
   * RPL/2 shall never be supported on :
 
-	- Cygwin due to some troubles between Cygwin Posix subsystem and Windows.
-		You can try, but I shall never support Cygwin. If someone proposes
-		patches to build RPL/2 on Cygwin, I won't modify official RPL/2 source
-		tree, but only propose these patches against official tarball.
-	- Windows (all versions).
-	- OS/2 and eComStation.
+	- Windows (all versions) without Cygwin.
 	- Mac OS preX.
 
 	Tools directory contains some libraries that are normally provided by