在用mingw链接msvc生成的库时常常产生这样的链接错误：

undefined reference to `_chkstk'

这是因为chkstk is a stack-probing thing that MSVC generates whenallocating big stack frames), and that GCC has an equivalent inlibgcc （called _alloca).也就是说msvc与mingw定义的名字不同一个叫chkstk，另一个叫alloca。所以mingw在链接时不能找到chkstk的定义。

解决办法：

从visual studio 2008(2005,2003）中找出chkstk.obj,将其一起链接，问题解决。forexample:

D:\Qt\2009.02\mingw\bin\g++.exe -O3 -DNDEBUGCMakeFiles\xml2dcm.dir\xml2dcm.obj -o xml2dcm.exe-Wl,--out-implib,libxml2dcm.dll.a-Wl,--major-image-version,0,--minor-image-version,0-LE:\CURREN~2\PLANNI~1\DCMTK-~1.4AN\DCMTK-~1.4_E\dcmdata-LE:\CURREN~2\PLANNI~1\DCMTK-~1.4AN\DCMTK-~1.4_E\ofstd-LE:\CURREN~2\PLANNI~1\DCMTK-~1.4AN\DCMTK-~1.4-W\ZLIB-1~1.3\lib-LE:\CURREN~2\PLANNI~1\DCMTK-~1.4AN\DCMTK-~1.4-W\LIBXML~1.26\lib-LE:\CURREN~2\PLANNI~1\DCMTK-~1.4AN\DCMTK-~1.4_E\ofstd\libsrc-LE:\CURREN~2\PLANNI~1\DCMTK-~1.4AN\DCMTK-~1.4_E\dcmdata\libsrc-lnetapi32 ..\libsrc\libdcmdata.a ..\..\ofstd\libsrc\libofstd.a-llibxml2_o -liconv_o ..\libsrc\chkstk.obj -lwsock32 -lzlib_o