Fix up and document controlling ccache via CMake options.
Patch by Matthew Davis!
Differential Revision: https://reviews.llvm.org/D41757
llvm-svn: 323357
diff --git a/llvm/docs/CMake.rst b/llvm/docs/CMake.rst
index 05edec6..5fea128 100644
--- a/llvm/docs/CMake.rst
+++ b/llvm/docs/CMake.rst
@@ -551,6 +551,14 @@
<http://clang.llvm.org/docs/SourceBasedCodeCoverage.html>`_ instrumentation
is enabled while building llvm.
+**LLVM_CCACHE_BUILD**:BOOL
+ If enabled and the ``ccache`` program is available, then LLVM will be
+ built using ``ccache`` to speed up rebuilds of LLVM and its components.
+ Defaults to OFF. The size and location of the cache maintained
+ by ``ccache`` can be adjusted via the LLVM_CCACHE_MAXSIZE and LLVM_CCACHE_DIR
+ options, which are passed to the CCACHE_MAXSIZE and CCACHE_DIR environment
+ variables, respectively.
+
CMake Caches
============