gcc 3.x is mandatory now on PowerPC

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@369 c046a42c-6fe2-441c-8c8c-71466251a162

README

@@ -52,7 +52,8 @@ x86       2.95.2   2.13.2        2.1.3    2.4.18
           2.96     2.11.93.0.2   2.2.5    2.4.18      Red Hat 7.3
           3.2.2    2.13.90.0.18  2.3.2    2.4.20      Red Hat 9
 
-PowerPC   2.95.4   2.12.90.0.1   2.2.5    2.4.20-pre2 Debian 3.0
+PowerPC   3.3 [4]  2.13.90.0.18  2.3.1    2.4.20briq
+          3.2
 
 Alpha     3.3 [1]  2.14.90.0.4   2.2.5    2.2.20 [2]  Debian 3.0
 
@@ -66,6 +67,9 @@ ARM       2.95.4   2.12.90.0.1   2.2.5    2.4.9 [3]   Debian 3.0
     (untested).
 [3] 2.4.9-ac10-rmk2-np1-cerf2
 
+[4] gcc 2.95.x generates invalid code when using too many register
+variables. You must use gcc 3.x on PowerPC.
+
 Documentation
 -------------