Apache thrift未定义对apache::thrift::server::TNonblockingServer的引用

Question

我试图编译一段创建TNonblockingServer的代码，得到以下编译错误。知道出什么问题了吗？

something_server.cpp:(.text+0x1ad): undefined reference to `apache::thrift::server::TNonblockingServer::serve()'
something_server.cpp:(.text+0x1c1): undefined reference to `apache::thrift::server::TNonblockingServer::~TNonblockingServer()'
something_server.cpp:(.text+0x280): undefined reference to `apache::thrift::server::TNonblockingServer::~TNonblockingServer()'

我在安装thrift时执行了这里列出的步骤。http://thrift.apache.org/docs/install/os_x/

这是我的makefile

GEN_SRC := Something.cpp something_constants.cpp something_types.cpp
GEN_OBJ := $(patsubst %.cpp,%.o, $(GEN_SRC))

THRIFT_DIR := /usr/local/include/thrift
BOOST_DIR := /usr/local/include

INC := -I$(THRIFT_DIR) -I$(BOOST_DIR)

.PHONY: all clean

all: something_server something_client

%.o: %.cpp 
    $(CXX) -Wall -DHAVE_INTTYPES_H -DHAVE_NETINET_IN_H $(INC) -c $< -o $@ 

something_server: something_server.o $(GEN_OBJ)
    $(CXX) $^ -o $@ -L/usr/local/lib -lthrift 

something_client: something_client.o $(GEN_OBJ)
    $(CXX) $^ -o $@ -L/usr/local/lib -lthrift 

clean: 
    $(RM) *.o something_server something_client

Answer 1

正如Dmitry所指出的，如果我们将-lthriftnb添加到编译命令中，它就解决了问题。这些缺失的引用在libthriftnb.so中找到，该文件包含对libevent的引用。所以我不得不在编译命令时包含-levent。如果没有-levent，链接器会生成多条错误消息。其中一些信息如下：

/usr/local/lib/libthriftnb.so: undefined reference to `event_set'
/usr/local/lib/libthriftnb.so: undefined reference to `evbuffer_new'
/usr/local/lib/libthriftnb.so: undefined reference to `evhttp_free'
.
.
.
.
/usr/local/lib/libthriftnb.so: undefined reference to `event_del'