https://issues.apache.org/jira/browse/THRIFT-1824
背景：
当在使用thrift时，如果我们的代码也采用automake方式编译，这样就存在config.h文件冲突，原因是thrift的Thread.h文件include它时，没有目录修饰。config.h:
在成功编译thrift后，会在它的thrift目录下生成一个config.h文件，这个文件实际是由automake产生的，如下所示 ：
> ls thrift
async config.h protocol server TDispatchProcessor.h TLogging.h transport
concurrency processor qt TApplicationException.h Thrift.h TProcessor.h TReflectionLocal.h
concurrency/Thread.h：
在Thread.h头文件中会包含这个头文件，遗憾的是Thread.h是对外的公共文件，也就是使用thrift会直接看到它，而config.h被include时，未加任何目录修饰，这就是收到大量编译警告的原因。
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
ERROR MESSAGE:
只需要将Thread.h中的#include <config.h>注释掉，下面的大量编译警告即可消息，而且thrift编译也没有问题。
make[2]: Entering directory `@_@'
if g++ -DHAVE_CONFIG_H -I. -I. -I../.. -I../.. -I../../../third-party/boost/include -I../../../third-party/thrift/include -I../../../third-party/sqlite/include -I../../../third-party/gflags/include -I../../../third-party/glog/include -I../../../third-party/libevent/include -I../../../third-party/mysql/include -D_GNU_SOURCE -rdynamic -Wall -fPIC -g -MT ExecutorService_server.skeleton.o -MD -MP -MF ".deps/ExecutorService_server.skeleton.Tpo" -c -o ExecutorService_server.skeleton.o `test -f './ExecutorService_server.skeleton.cpp' || echo './'`./ExecutorService_server.skeleton.cpp; \
then mv -f ".deps/ExecutorService_server.skeleton.Tpo" ".deps/ExecutorService_server.skeleton.Po"; else rm -f ".deps/ExecutorService_server.skeleton.Tpo"; exit 1; fi
In file included from ../../../third-party/thrift/include/thrift/concurrency/Thread.h:28,
from ../../../third-party/thrift/include/thrift/server/TServer.h:26,
from ../../../third-party/thrift/include/thrift/server/TSimpleServer.h:23,
from ./ExecutorService_server.skeleton.cpp:6:
../../config.h:44:1: warning: "PACKAGE" redefined
In file included from ../../../third-party/thrift/include/thrift/TLogging.h:24,
from ../../../third-party/thrift/include/thrift/Thrift.h:51,
from ../../../third-party/thrift/include/thrift/transport/TTransport.h:23,
from ../../../third-party/thrift/include/thrift/protocol/TProtocol.h:23,
from ../../../third-party/thrift/include/thrift/TProcessor.h:24,
from ../../../third-party/thrift/include/thrift/TDispatchProcessor.h:22,
from ./ExecutorService.h:10,
from ./ExecutorService_server.skeleton.cpp:4:
../../../third-party/thrift/include/thrift/config.h:263:1: warning: this is the location of the previous definition
In file included from ../../../third-party/thrift/include/thrift/concurrency/Thread.h:28,
from ../../../third-party/thrift/include/thrift/server/TServer.h:26,
from ../../../third-party/thrift/include/thrift/server/TSimpleServer.h:23,
from ./ExecutorService_server.skeleton.cpp:6:
../../config.h:47:1: warning: "PACKAGE_BUGREPORT" redefined
In file included from ../../../third-party/thrift/include/thrift/TLogging.h:24,
from ../../../third-party/thrift/include/thrift/Thrift.h:51,
from ../../../third-party/thrift/include/thrift/transport/TTransport.h:23,
from ../../../third-party/thrift/include/thrift/protocol/TProtocol.h:23,
from ../../../third-party/thrift/include/thrift/TProcessor.h:24,
from ../../../third-party/thrift/include/thrift/TDispatchProcessor.h:22,
from ./ExecutorService.h:10,
from ./ExecutorService_server.skeleton.cpp:4:
../../../third-party/thrift/include/thrift/config.h:266:1: warning: this is the location of the previous definition
In file included from ../../../third-party/thrift/include/thrift/concurrency/Thread.h:28,
from ../../../third-party/thrift/include/thrift/server/TServer.h:26,
from ../../../third-party/thrift/include/thrift/server/TSimpleServer.h:23,
from ./ExecutorService_server.skeleton.cpp:6:
../../config.h:50:1: warning: "PACKAGE_NAME" redefined
In file included from ../../../third-party/thrift/include/thrift/TLogging.h:24,
from ../../../third-party/thrift/include/thrift/Thrift.h:51,
from ../../../third-party/thrift/include/thrift/transport/TTransport.h:23,
from ../../../third-party/thrift/include/thrift/protocol/TProtocol.h:23,
from ../../../third-party/thrift/include/thrift/TProcessor.h:24,
from ../../../third-party/thrift/include/thrift/TDispatchProcessor.h:22,
from ./ExecutorService.h:10,
from ./ExecutorService_server.skeleton.cpp:4:
../../../third-party/thrift/include/thrift/config.h:269:1: warning: this is the location of the previous definition
In file included from ../../../third-party/thrift/include/thrift/concurrency/Thread.h:28,
from ../../../third-party/thrift/include/thrift/server/TServer.h:26,
from ../../../third-party/thrift/include/thrift/server/TSimpleServer.h:23,
from ./ExecutorService_server.skeleton.cpp:6:
../../config.h:53:1: warning: "PACKAGE_STRING" redefined
In file included from ../../../third-party/thrift/include/thrift/TLogging.h:24,
from ../../../third-party/thrift/include/thrift/Thrift.h:51,
from ../../../third-party/thrift/include/thrift/transport/TTransport.h:23,
from ../../../third-party/thrift/include/thrift/protocol/TProtocol.h:23,
from ../../../third-party/thrift/include/thrift/TProcessor.h:24,
from ../../../third-party/thrift/include/thrift/TDispatchProcessor.h:22,
from ./ExecutorService.h:10,
from ./ExecutorService_server.skeleton.cpp:4:
../../../third-party/thrift/include/thrift/config.h:272:1: warning: this is the location of the previous definition
In file included from ../../../third-party/thrift/include/thrift/concurrency/Thread.h:28,
from ../../../third-party/thrift/include/thrift/server/TServer.h:26,
from ../../../third-party/thrift/include/thrift/server/TSimpleServer.h:23,
from ./ExecutorService_server.skeleton.cpp:6:
../../config.h:56:1: warning: "PACKAGE_TARNAME" redefined
In file included from ../../../third-party/thrift/include/thrift/TLogging.h:24,
from ../../../third-party/thrift/include/thrift/Thrift.h:51,
from ../../../third-party/thrift/include/thrift/transport/TTransport.h:23,
from ../../../third-party/thrift/include/thrift/protocol/TProtocol.h:23,
from ../../../third-party/thrift/include/thrift/TProcessor.h:24,
from ../../../third-party/thrift/include/thrift/TDispatchProcessor.h:22,
from ./ExecutorService.h:10,
from ./ExecutorService_server.skeleton.cpp:4:
../../../third-party/thrift/include/thrift/config.h:275:1: warning: this is the location of the previous definition
In file included from ../../../third-party/thrift/include/thrift/concurrency/Thread.h:28,
from ../../../third-party/thrift/include/thrift/server/TServer.h:26,
from ../../../third-party/thrift/include/thrift/server/TSimpleServer.h:23,
from ./ExecutorService_server.skeleton.cpp:6:
../../config.h:59:1: warning: "PACKAGE_VERSION" redefined
In file included from ../../../third-party/thrift/include/thrift/TLogging.h:24,
from ../../../third-party/thrift/include/thrift/Thrift.h:51,
from ../../../third-party/thrift/include/thrift/transport/TTransport.h:23,
from ../../../third-party/thrift/include/thrift/protocol/TProtocol.h:23,
from ../../../third-party/thrift/include/thrift/TProcessor.h:24,
from ../../../third-party/thrift/include/thrift/TDispatchProcessor.h:22,
from ./ExecutorService.h:10,
from ./ExecutorService_server.skeleton.cpp:4:
../../../third-party/thrift/include/thrift/config.h:281:1: warning: this is the location of the previous definition
In file included from ../../../third-party/thrift/include/thrift/concurrency/Thread.h:28,
from ../../../third-party/thrift/include/thrift/server/TServer.h:26,
from ../../../third-party/thrift/include/thrift/server/TSimpleServer.h:23,
from ./ExecutorService_server.skeleton.cpp:6:
../../config.h:65:1: warning: "VERSION" redefined
In file included from ../../../third-party/thrift/include/thrift/TLogging.h:24,
from ../../../third-party/thrift/include/thrift/Thrift.h:51,
from ../../../third-party/thrift/include/thrift/transport/TTransport.h:23,
from ../../../third-party/thrift/include/thrift/protocol/TProtocol.h:23,
from ../../../third-party/thrift/include/thrift/TProcessor.h:24,
from ../../../third-party/thrift/include/thrift/TDispatchProcessor.h:22,
from ./ExecutorService.h:10,
from ./ExecutorService_server.skeleton.cpp:4:
../../../third-party/thrift/include/thrift/config.h:327:1: warning: this is the location of the previous definition