VC.net的工程转化到VC6.0遇到的问题
我尝试将一个VC.net的工程转化到VC6.0,遇到如下问题:
第一步,新建一个空的WIN32工程,将所有的文件, .h .cpp .res 加进来
第二步,编译通过,而LINK 出现如下错误
nafxcwd.lib(afxmem.obj) : error LNK2005: "void __cdecl operator delete(void *)" (??3@YAXPAX@Z) already defined in libcpd.lib(delop.obj)
nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __endthreadex
nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __beginthreadex
Debug/VisionMouse.exe : fatal error LNK1120: 2 unresolved externals
第三步:查找MSDN,发现
_beginthread <process.h> Win 95, Win NT
_beginthreadex <process.h> Win 95, Win NT
Libraries
LIBCMT.LIB Multithread static library, retail version
MSVCRT.LIB Import library for MSVCRT.DLL, retail version
第四步:在工程setting加入LIBCMT.LIB或者MSVCRT.LIB,(这两个的区别不清楚),再次链接。
错误如下:
nafxcwd.lib(afxmem.obj) : error LNK2005: "void * __cdecl operator new(unsigned int)" (??2@YAPAXI@Z) already defined in LIBCMT.LIB(new.obj)
nafxcwd.lib(afxmem.obj) : error LNK2005: "void __cdecl operator delete(void *)" (??3@YAXPAX@Z) already defined in LIBCMT.LIB(delete.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __cinit already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: _exit already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __exit already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __cexit already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __c_exit already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __C_Exit_Done already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __C_Termination_Done already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __exitflag already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __wpgmptr already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __pgmptr already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: ___winitenv already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __wenviron already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: ___initenv already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __environ already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: ___wargv already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: ___argv already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: ___argc already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __winminor already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __winmajor already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __winver already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __osver already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(crt0dat.obj) : error LNK2005: __umaskval already defined in LIBCMT.LIB(crt0dat.obj)
libcd.lib(dbgheap.obj) : error LNK2005: _malloc already defined in LIBCMT.LIB(malloc.obj)
libcd.lib(dbgheap.obj) : error LNK2005: __nh_malloc already defined in LIBCMT.LIB(malloc.obj)
libcd.lib(dbgheap.obj) : error LNK2005: __heap_alloc already defined in LIBCMT.LIB(malloc.obj)
libcd.lib(dbgheap.obj) : error LNK2005: _calloc already defined in LIBCMT.LIB(calloc.obj)
libcd.lib(dbgheap.obj) : error LNK2005: _realloc already defined in LIBCMT.LIB(realloc.obj)
libcd.lib(dbgheap.obj) : error LNK2005: _free already defined in LIBCMT.LIB(free.obj)
libcd.lib(dbgheap.obj) : error LNK2005: __msize already defined in LIBCMT.LIB(msize.obj)
libcd.lib(sbheap.obj) : error LNK2005: __get_sbh_threshold already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: __set_sbh_threshold already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___sbh_heap_init already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___sbh_find_block already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___sbh_free_block already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___sbh_alloc_block already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___sbh_alloc_new_region already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___sbh_alloc_new_group already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___sbh_resize_block already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___sbh_heapmin already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___sbh_heap_check already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: __get_old_sbh_threshold already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: __set_old_sbh_threshold already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_new_region already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_release_region already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_decommit_pages already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_find_block already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_free_block already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_alloc_block already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_alloc_block_from_page already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_resize_block already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_heap_check already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_sbh_threshold already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(sbheap.obj) : error LNK2005: ___old_small_block_heap already defined in LIBCMT.LIB(sbheap.obj)
libcd.lib(cfout.obj) : error LNK2005: ___dtold already defined in LIBCMT.LIB(cfout.obj)
LINK : warning LNK4098: defaultlib "libcd.lib" conflicts with use of other libs; use /NODEFAULTLIB:library
Debug/VisionMouse.exe : fatal error LNK1169: one or more multiply defined symbols found
Error executing link.exe.
VisionMouse.exe - 57 error(s), 1 warning(s)
看起来libcd.lib与加入的LIBCMT.LIB有命名冲突,
我查看代码里有trackerThread = AfxBeginThread(StartTracker,_param,THREAD_PRIORITY_NORMAL);启用多线程的地方,是标准win32的用法.
请教一下为什么在vc.net -> vc6.0 移植中会有这样的错误?如何解决呢?