Update the portability section
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9803 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
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--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -139,11 +139,14 @@
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-LLVM has only been extensively tested on Intel and AMD machines running Red
-Hat Linux, and Sun UltraSPARC workstations running Solaris 8.
+LLVM has been extensively tested on Intel and AMD machines running Red
+Hat Linux, and Sun UltraSPARC workstations running Solaris 8. Additionally,
+LLVM works on Mac OS/X 10.3 and above, but only with the C back-end (no native
+backend for the PowerPC is available yet).
The core LLVM infrastructure uses "autoconf" for portability, so hopefully we
-work on more platforms than that. However, it is extremely likely that we
-missed something. We welcome portability patches and error messages.<p>
+work on more platforms than that. However, it is likely that we
+missed something, and that minor porting is required to get LLVM to work on
+new platforms. We welcome portability patches and error messages.<p>
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