Document problems with Cygwin builds of GCC 3.4.4.

diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 46845c92ef80b1b8cc124a512a1b5678de02e61c..c5d0db971c900a7082fc3f698b551ca2376a5a5e 100644 (file)
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -2327,7 +2327,16 @@ This results from a bug in a VERY old version of GNU Sed.  To solve
 the problem, install the current version of GNU Sed, then rerun
 Emacs's configure script.
 
-*** Building the MS-Windows port with Cygwin GCC can fail.
+*** Building the Cygwin port for MS-Windows can fail with some GCC version
+
+Building Emacs 22 with Cygwin builds of GCC 3.4.4-1 and 3.4.4-2 is
+reported to either fail or cause Emacs to segfault at run time.  In
+addition, the Cygwin GCC 3.4.4-2 has problems with generating debug
+info.  Cygwin users are advised not to use these versions of GCC for
+compiling Emacs.  GCC versions 4.0.3 and 4.1.1 reportedly build a
+working Cygwin binary of Emacs, so we recommend these GCC versions.
+
+*** Building the native MS-Windows port with Cygwin GCC can fail.
 
 Emacs may not build using recent Cygwin builds of GCC, such as Cygwin
 version 1.1.8, using the default configure settings.  It appears to be