revise awk command

CMakeLists.txt

@@ -30,10 +30,11 @@ execute_process(
     COMMAND bash -c "grep \"namespace [_A-Za-z0-9]\\+ {\" ${GFLAGS_INCLUDE_PATH}/gflags/gflags_declare.h | head -1 | awk '{print $2}'"
     OUTPUT_VARIABLE GFLAGS_NS
 )
+message("GFLAGS_INCLUDE_PATH=${GFLAGS_INCLUDE_PATH}")
 # STREQUAL not works. Use MATCHES as workaround
 if(${GFLAGS_NS} MATCHES ".*GFLAGS_NAMESPACE.*")
     execute_process(
-        COMMAND bash -c "grep \"#define GFLAGS_NAMESPACE [_A-Za-z0-9]\\+\" ${GFLAGS_INCLUDE_PATH}/gflags/gflags_declare.h | head -1 | awk '{print $3}' | tr -d \"\\n\"" 
+        COMMAND bash -c "grep \"#define GFLAGS_NAMESPACE [_A-Za-z0-9]\\+\" ${GFLAGS_INCLUDE_PATH}/gflags/gflags_declare.h | head -1 | awk '{printf(\"%s\",$3)}'"
         OUTPUT_VARIABLE GFLAGS_NS
     )
 endif()
@@ -44,14 +45,14 @@ include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}/src
 )
 
-#set(CMAKE_CXX_STANDARD 11)
-#set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CPP_FLAGS "-DBRPC_WITH_GLOG=${WITH_GLOG_VAL} -DGFLAGS_NS=${GFLAGS_NS}")
 set(CMAKE_CPP_FLAGS "${CMAKE_CPP_FLAGS} -DBTHREAD_USE_FAST_PTHREAD_MUTEX -D__const__= -D_GNU_SOURCE -DUSE_SYMBOLIZE -DNO_TCMALLOC -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS")
 set(CMAKE_CPP_FLAGS "${CMAKE_CPP_FLAGS} ${DEBUG_SYMBOL}")
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CPP_FLAGS} -std=c++0x -O2 -pipe -Wall -W -fPIC -fstrict-aliasing -Wno-invalid-offsetof -Wno-unused-parameter -fno-omit-frame-pointer")
-set(CMAKE_C_FLAGS "${CMAKE_CPP_FLAGS} -O2 -pipe -Wall -W -fPIC -fstrict-aliasing -Wno-unused-parameter -fno-omit-frame-pointer -std=c++0x")
+set(CMAKE_CXX_FLAGS "${CMAKE_CPP_FLAGS} -O2 -pipe -Wall -W -fPIC -fstrict-aliasing -Wno-invalid-offsetof -Wno-unused-parameter -fno-omit-frame-pointer")
+set(CMAKE_C_FLAGS "${CMAKE_CPP_FLAGS} -O2 -pipe -Wall -W -fPIC -fstrict-aliasing -Wno-unused-parameter -fno-omit-frame-pointer")
 SET(CMAKE_EXE_LINKER_FLAGS "-pthread")
 
 #required by butil/crc32.cc to boost performance for 10x