Mention explicitly that the Ada front-end will not bootstrap.

The configure line had --disable-bootstrap, but it was not
clear that this is essential.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67651 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/GCCFEBuildInstrs.html b/docs/GCCFEBuildInstrs.html
index e58533e75a9db83ff6a1525a75d503fba110e54e..cc0d584cecba712065b6298e7c53c55b9b1324b2 100644 (file)
--- a/docs/GCCFEBuildInstrs.html
+++ b/docs/GCCFEBuildInstrs.html
@@ -100,6 +100,11 @@ top-level <tt>README.LLVM</tt> file, adding ",ada" to EXTRALANGS, for example:
       compiler with checking enabled.  This causes it to run much slower, but
       helps catch mistakes in the compiler (please report any problems using
       <a href="http://llvm.org/bugs">LLVM bugzilla</a>).</p></li>
+  <li><p>The Ada front-end <a href="http://llvm.org/PR2007">fails to
+      bootstrap</a>, due to lack of LLVM support for
+      <tt>setjmp</tt>/<tt>longjmp</tt> style exception handling (used
+      internally by the compiler), so you must specify
+      <tt>--disable-bootstrap</tt>.</p></li>
 </ol>
 
 <p>Supposing appropriate compilers are available, llvm-gcc with Ada support can