Added LLVM as a submodule

llvm_build/share/llvm/cmake/FindSphinx.cmake

@@ -0,0 +1,25 @@
+# CMake find_package() Module for Sphinx documentation generator
+# http://sphinx-doc.org/
+#
+# Example usage:
+#
+# find_package(Sphinx)
+#
+# If successful the following variables will be defined
+# SPHINX_FOUND
+# SPHINX_EXECUTABLE
+
+find_program(SPHINX_EXECUTABLE
+             NAMES sphinx-build sphinx-build2
+             DOC "Path to sphinx-build executable")
+
+# Handle REQUIRED and QUIET arguments
+# this will also set SPHINX_FOUND to true if SPHINX_EXECUTABLE exists
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Sphinx
+                                  "Failed to locate sphinx-build executable"
+                                  SPHINX_EXECUTABLE)
+
+# Provide options for controlling different types of output
+option(SPHINX_OUTPUT_HTML "Output standalone HTML files" ON)
+option(SPHINX_OUTPUT_MAN "Output man pages" ON)