llvm-build: Add initial --write-cmake-fragment option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143744 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CommandGuide/llvm-build.pod b/docs/CommandGuide/llvm-build.pod
index 5ce93a9..78648ba 100644
--- a/docs/CommandGuide/llvm-build.pod
+++ b/docs/CommandGuide/llvm-build.pod
@@ -48,6 +48,13 @@
Write out new I<LLVMBuild.txt> files based on the loaded components. This is
useful for auto-upgrading the schema of the files.
+=item B<--write-cmake-fragment>
+
+Write out the LLVMBuild in the form of a CMake fragment, so it can easily be
+consumed by the CMake based build system. The exact contents and format of this
+file are closely tied to how LLVMBuild is integrated with CMake, see LLVM's
+top-level CMakeLists.txt.
+
=item B<--write-make-fragment>
Write out the LLVMBuild in the form of a Makefile fragment, so it can easily be