Add -D__STRICT_ANSI__ to suppress the error '__float128' is not yet implemented

Author: zhujiashun

tools/CMakeLists.txt

@@ -1,5 +1,5 @@
 set(CMAKE_CPP_FLAGS "-DGFLAGS_NS=${GFLAGS_NS}")
-set(CMAKE_CXX_FLAGS "${CMAKE_CPP_FLAGS} -DNDEBUG -O2 -D__const__= -pipe -W -Wall -Wno-unused-parameter -fPIC -fno-omit-frame-pointer")
+set(CMAKE_CXX_FLAGS "${CMAKE_CPP_FLAGS} -DNDEBUG -O2 -D__const__= -D__STRICT_ANSI__ -pipe -W -Wall -Wno-unused-parameter -fPIC -fno-omit-frame-pointer")
 use_cxx11()
 set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR}/output/bin)