The CMake build system now derives the Clang version number from VER.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82085 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

@@ -1,6 +1,15 @@
 # Clang version information
-# FIXME: get from a file called ./VER
-set(CLANG_VERSION 1.1)
+
+# Make sure that CMake reconfigures when the version changes.
+configure_file(
+  ${CMAKE_CURRENT_SOURCE_DIR}/VER
+  ${CMAKE_CURRENT_BINARY_DIR}/VER)
+
+# Compute the Clang version from the contents of VER
+file(READ ${CMAKE_CURRENT_SOURCE_DIR}/VER CLANG_VERSION_DATA)
+string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION 
+  ${CLANG_VERSION_DATA})
+message(STATUS "Clang version: ${CLANG_VERSION}")
 
 macro(add_clang_library name)
   set(srcs ${ARGN})