libc++ also has a file called version and this file and how cflags are specified
it ends up including this file and resulting in compile errors

fixes errors like
storage/mroonga/version:1:1: error: expected unqualified-id
7.07
^

Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>

--- a/storage/mroonga/CMakeLists.txt
+++ b/storage/mroonga/CMakeLists.txt
@@ -80,7 +80,7 @@ else()
   set(MRN_SOURCE_DIR ${CMAKE_SOURCE_DIR})
 endif()
 
-file(READ ${MRN_SOURCE_DIR}/version        MRN_VERSION)
+file(READ ${MRN_SOURCE_DIR}/ver            MRN_VERSION)
 file(READ ${MRN_SOURCE_DIR}/version_major  MRN_VERSION_MAJOR)
 file(READ ${MRN_SOURCE_DIR}/version_minor  MRN_VERSION_MINOR)
 file(READ ${MRN_SOURCE_DIR}/version_micro  MRN_VERSION_MICRO)
--- /dev/null
+++ b/storage/mroonga/ver
@@ -0,0 +1 @@
+7.07
\ No newline at end of file
--- a/storage/mroonga/version
+++ /dev/null
@@ -1 +0,0 @@
-7.07
\ No newline at end of file