diff --git a/utils/llvm-build/llvmbuild/main.py b/utils/llvm-build/llvmbuild/main.py
index 698b61d..5932fb9 100644
--- a/utils/llvm-build/llvmbuild/main.py
+++ b/utils/llvm-build/llvmbuild/main.py
@@ -7,6 +7,19 @@
 
 ###
 
+def cmake_quote_string(value):
+    """
+    cmake_quote_string(value) -> str
+
+    Return a quoted form of the given value that is suitable for use in CMake
+    language files.
+    """
+
+    # Currently, we only handle escaping backslashes.
+    value = value.replace("\\", "\\\\")
+
+    return value
+
 def mk_quote_string_for_target(value):
     """
     mk_quote_string_for_target(target_name) -> str
@@ -388,8 +401,9 @@
         for dep in dependencies:
             print >>f, """\
 configure_file(\"%s\"
-               ${CMAKE_CURRENT_BINARY_DIR}/DummyConfigureOutput)""" % (dep,)
-            
+               ${CMAKE_CURRENT_BINARY_DIR}/DummyConfigureOutput)""" % (
+                cmake_quote_string(dep),)
+
         f.close()
 
     def write_make_fragment(self, output_path):