configure.ac lives in autoconf/, not autotools/
Patch by Palmer Dabbelt!
llvm-svn: 221638
diff --git a/llvm/docs/WritingAnLLVMBackend.rst b/llvm/docs/WritingAnLLVMBackend.rst
index fb7c16f..fdadbb0 100644
--- a/llvm/docs/WritingAnLLVMBackend.rst
+++ b/llvm/docs/WritingAnLLVMBackend.rst
@@ -161,7 +161,7 @@
know about your target when parsing the ``--enable-targets`` option. Search
the configure script for ``TARGETS_TO_BUILD``, add your target to the lists
there (some creativity required), and then reconfigure. Alternatively, you can
-change ``autotools/configure.ac`` and regenerate configure by running
+change ``autoconf/configure.ac`` and regenerate configure by running
``./autoconf/AutoRegen.sh``.
Target Machine