Include *.inc in install target

Fixes PR6755.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100105 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e84d94..2001c71 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -92,6 +92,12 @@
   PATTERN ".svn" EXCLUDE
   )
 
+install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/
+  DESTINATION include
+  FILES_MATCHING
+  PATTERN "*.inc"
+  )
+
 add_definitions( -D_GNU_SOURCE )
 
 option(CLANG_BUILD_EXAMPLES "Build CLANG example programs." OFF)