diff --git a/CMakeLists.txt b/CMakeLists.txt
index e9e0ee7..3a90e52 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -125,10 +125,10 @@ elseif(CURRENT_BUILD_TYPE MATCHES OPTIMIZED)
 elseif(CURRENT_BUILD_TYPE MATCHES RELWITHDEBINFO)
   message(STATUS "C compiler = ${CMAKE_C_COMPILER}")
   message(STATUS "C flags    = ${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_RELWITHDEBINFO}")
-else(CURRENT_BUILD_TYPE MATCHES DEBUG)
+elseif(CURRENT_BUILD_TYPE MATCHES DEBUG)
   message(STATUS "C compiler = ${CMAKE_C_COMPILER}")
   message(STATUS "C flags    = ${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_DEBUG}")
-else(CURRENT_BUILD_TYPE MATCHES DEBUG)
+elseif(CURRENT_BUILD_TYPE MATCHES DEBUG)
   message(STATUS "C compiler = ${CMAKE_C_COMPILER}")
   message(STATUS "C flags    = ${CMAKE_C_FLAGS}")
 endif(CURRENT_BUILD_TYPE MATCHES RELEASE)
diff --git a/source/extensions/CMakeLists.txt b/source/extensions/CMakeLists.txt
index 7eaacc9..f7714b9 100644
--- a/source/extensions/CMakeLists.txt
+++ b/source/extensions/CMakeLists.txt
@@ -1,4 +1,5 @@
 set(OSL_EXTENSIONS_CFILES
+  ${CMAKE_CURRENT_SOURCE_DIR}/annotation.c
   ${CMAKE_CURRENT_SOURCE_DIR}/arrays.c
   ${CMAKE_CURRENT_SOURCE_DIR}/clay.c
   ${CMAKE_CURRENT_SOURCE_DIR}/comment.c
@@ -9,6 +10,7 @@ set(OSL_EXTENSIONS_CFILES
   ${CMAKE_CURRENT_SOURCE_DIR}/loop.c
   ${CMAKE_CURRENT_SOURCE_DIR}/null.c
   ${CMAKE_CURRENT_SOURCE_DIR}/pluto_unroll.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/region.c
   ${CMAKE_CURRENT_SOURCE_DIR}/scatnames.c
   ${CMAKE_CURRENT_SOURCE_DIR}/symbols.c
   ${CMAKE_CURRENT_SOURCE_DIR}/textual.c