Add support for a patch version to the cmake system.

Patch by Brad King

llvm-svn: 206425
diff --git a/llvm/cmake/modules/LLVMConfig.cmake.in b/llvm/cmake/modules/LLVMConfig.cmake.in
index 2f8d037..780001a 100644
--- a/llvm/cmake/modules/LLVMConfig.cmake.in
+++ b/llvm/cmake/modules/LLVMConfig.cmake.in
@@ -4,6 +4,7 @@
 
 set(LLVM_VERSION_MAJOR @LLVM_VERSION_MAJOR@)
 set(LLVM_VERSION_MINOR @LLVM_VERSION_MINOR@)
+set(LLVM_VERSION_PATCH @LLVM_VERSION_PATCH@)
 set(LLVM_PACKAGE_VERSION @PACKAGE_VERSION@)
 
 set(LLVM_COMMON_DEPENDS @LLVM_COMMON_DEPENDS@)
diff --git a/llvm/cmake/modules/Makefile b/llvm/cmake/modules/Makefile
index 8f20ddf..817f911e 100644
--- a/llvm/cmake/modules/Makefile
+++ b/llvm/cmake/modules/Makefile
@@ -24,6 +24,7 @@
 	  -e 's/@LLVM_CONFIG_CODE@/set(LLVM_INSTALL_PREFIX "'"$(subst /,\/,$(PROJ_prefix))"'")/' \
 	  -e 's/@LLVM_VERSION_MAJOR@/'"$(LLVM_VERSION_MAJOR)"'/' \
 	  -e 's/@LLVM_VERSION_MINOR@/'"$(LLVM_VERSION_MINOR)"'/' \
+	  -e 's/@LLVM_VERSION_PATCH@/'"$(LLVM_VERSION_PATCH)"'/' \
 	  -e 's/@PACKAGE_VERSION@/'"$(LLVMVersion)"'/' \
 	  -e 's/@LLVM_COMMON_DEPENDS@//' \
 	  -e 's/@LLVM_AVAILABLE_LIBS@/'"$(subst -l,,$(LLVMConfigLibs))"'/' \