THRIFT-3424 Add CMake android build option
Client: Build
Patch: Nobuaki Sukegawa

This closes #696
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f3005f5..37e8976 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -67,7 +67,11 @@
 else ()
   message(STATUS "Building without tests")
 endif ()
+
 if(BUILD_COMPILER)
+    if(NOT EXISTS ${THRIFT_COMPILER})
+        set(THRIFT_COMPILER $<TARGET_FILE:thrift-compiler>)
+    endif()
     add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/compiler/cpp)
 endif()
 
@@ -75,7 +79,7 @@
     add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/lib/cpp)
     if(BUILD_TUTORIALS)
         add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/tutorial/cpp)
-    endif(BUILD_TUTORIALS)
+    endif()
     if(BUILD_TESTING)
         if(WITH_LIBEVENT AND WITH_ZLIB AND WITH_OPENSSL)
             add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/test/cpp)