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Mac Forum / Programming / CodeWarrior / August 2005linking gcc built libs
I am statically linking some image libraries I built wwith gcc (config/make stuff) into a Codewarrior built dynamic library. This works on 10.3.x but on 10.4.2 I get some undefined symbols all from the C++ and C libraries. I am linking with the BSD libraries using MSL_C++_BSD_C_Mach-O_D.lib and BSD_Runtime_Mach-O_D.lib. I can also resolve a few of these (restFP, saveFP, __eprintf) by linking with libgcc.a (in /usr/lib/gcc/darwin/3.3/, under 10.3 there was a link to it in /usr/lib, but no more). Any ideas what I am missing? Thanks! Here are the link errors: Link Error : undefined: 'std::ostream::seekp(std::fpos<__mbstate_t>)' (code) Referenced from '_tiffosReadProc(void*, void*, long)' in libtiff.a Link Error : undefined: 'std::istream::seekg(long long, std::_Ios_Seekdir)' (code) Referenced from '_tiffosReadProc(void*, void*, long)' in libtiff.a Link Error : undefined: 'std::ostream::seekp(long long, std::_Ios_Seekdir)' (code) Referenced from '_tiffosReadProc(void*, void*, long)' in libtiff.a Link Error : undefined: 'std::ios_base::Init::~Init()' (code) Referenced from '_tiffosReadProc(void*, void*, long)' in libtiff.a Link Error : undefined: 'sscanf$LDBLStub' (code) Referenced from 'out_of_memory' in libjpeg.a Link Error : undefined: 'vfprintf$LDBLStub' (code) Referenced from '_tiffReadProc' in libtiff.a Link Error : undefined: 'restFP' (code) Referenced from 'jpeg_idct_float' in libjpeg.a Referenced from 'TIFFCIELabToXYZ' in libtiff.a Referenced from 'TIFFVGetFieldDefaulted' in libtiff.a Referenced from 'LogL16Decode' in libtiff.a Referenced from 'PixarLogGuessDataFmt' in libtiff.a Link Error : undefined: 'saveFP' (code) Referenced from 'jpeg_idct_float' in libjpeg.a Referenced from 'TIFFCIELabToXYZ' in libtiff.a Referenced from 'TIFFVGetFieldDefaulted' in libtiff.a Referenced from 'LogL16Decode' in libtiff.a Referenced from 'PixarLogGuessDataFmt' in libtiff.a Link Error : undefined: '__eprintf' (code) Referenced from 'TIFFGetTagListCount' in libtiff.a Referenced from 'LogL16Decode' in libtiff.a Referenced from 'PixarLogGuessDataFmt' in libtiff.a Referenced from '_ZIPSetupDecode' in libtiff.a Referenced from 'Fax3PreDecode' in libtiff.a Referenced from 'LZWSetupDecode' in libtiff.a Referenced from 'PredictorSetup' in libtiff.a Referenced from 'TIFFSetupStrips' in libtiff.a Referenced from 'TIFFStartStrip' in libtiff.a Referenced from 'tagCompare' in libtiff.a Referenced from 'DumpModeEncode' in libtiff.a Link Error : undefined: 'sprintf$LDBLStub' (code) Referenced from 'error_exit' in libjpeg.a Referenced from 'TIFFRGBAImageOK' in libtiff.a Referenced from 'tagCompare' in libtiff.a Referenced from 'png_write_info_before_PLTE' in libpng12.a Referenced from 'png_save_uint_32' in libpng12.a Referenced from 'png_set_crc_action' in libpng12.a Referenced from 'png_get_uint_32' in libpng12.a Referenced from 'png_create_read_struct_2' in libpng12.a Referenced from 'png_set_sig_bytes' in libpng12.a Link Error : undefined: 'fprintf$LDBLStub' (code) Referenced from '_TIFFprintAscii' in libtiff.a Referenced from 'error_exit' in libjpeg.a Referenced from '_tiffReadProc' in libtiff.a Referenced from 'Fax3PreDecode' in libtiff.a Referenced from 'PredictorSetup' in libtiff.a Referenced from 'tagCompare' in libtiff.a Referenced from 'png_save_uint_32' in libpng12.a Referenced from 'png_get_uint_32' in libpng12.a Referenced from 'png_warning' in libpng12.a >I am statically linking some image libraries I built wwith gcc >(config/make stuff) into a Codewarrior built dynamic library. This [quoted text clipped - 4 lines] >libgcc.a (in /usr/lib/gcc/darwin/3.3/, under 10.3 there was a link to >it in /usr/lib, but no more). Any ideas what I am missing? What versio of CodeWarrior are you using? did you rebuild your precompiled headers and libraries after upgrading to 10.4? You must at least upgrade your precompiled headers. If this is 8.3 did you point the OS X Volume to the 10.2.8 SDK or is it at root? Be sure your access paths are correct and that include is not recursive search. Ron >Here are the link errors: > [quoted text clipped - 67 lines] >Referenced from 'png_get_uint_32' in libpng12.a >Referenced from 'png_warning' in libpng12.a  SignatureCodeWarrior Community Forum is a free online resource for developers to discuss CodeWarrior topics with other users and our staff -- http://www.codewarrior.com/community -- Ron Liechty - MWRon@metrowerks.com - http://www.codewarrior.com > What versio of CodeWarrior are you using? CW 9.5, w/xCode 2.1 > did you rebuild your precompiled headers and libraries after upgrading > to 10.4? You must at least upgrade your precompiled headers. The system had (or came with) 10.4. CW 9.5 was installed on that. Though I will check with my sys admins to see exactly what they did. > Be sure your access paths are correct and that include is not recursive > search. No different than what I used on 10.3 and earlier. Has anyone else out there linked a gcc built lib with a CW app or dylib? If anyone has done this with one of the open source image libraries (libpng, libtiff, libjpeg). What did you do? Did it work? Robert >> What versio of CodeWarrior are you using? > [quoted text clipped - 16 lines] > >Robert Be sure you have XCode 2.1 installed. CodeWarrior links with libraries made by XCode (frameworks for example) I don't think that is it but you never know. An example project sent to support would help. Ron SignatureCodeWarrior Community Forum is a free online resource for developers to discuss CodeWarrior topics with other users and our staff -- http://www.codewarrior.com/community -- Ron Liechty - MWRon@metrowerks.com - http://www.codewarrior.com I am having what seems to be a simular issue. How did this turn out? I am using the .a files from config/make on a well know Mozilla project. I link to these and make a static library. It builds fine in codewarrior 9.5 OSX 10.4.2 Xcode 2.0. However, when I use this static library in anouther codewarrior build (to make a bundle) I get the link errors found below. I am not using the MSL or BSD dylibs anywhere. Should I be? I am, however, using bundle1.o for the application bundle. Please help. Link Error : undefined: 'sscanf$LDBLStub' (code) Referenced from '_PR_InitLog' in JavascriptMachODebugLib Project: SRCFromOriginal, Target: Pro Debug MACH Link Error : undefined: '__eprintf' (code) Referenced from 'error_table_name' in JavascriptMachODebugLib Project: SRCFromOriginal, Target: Pro Debug MACH Link Error : undefined: 'fprintf$LDBLStub' (code) Referenced from '_PR_InitLog' in JavascriptMachODebugLib Referenced from '_PR_DestroyZones' in JavascriptMachODebugLib Referenced from '_PR_InitDtoa' in JavascriptMachODebugLib Project: SRCFromOriginal, Target: Pro Debug MACH Link Error : undefined: '__moddi3' (code) Referenced from 'ComputeGMT' in JavascriptMachODebugLib Project: SRCFromOriginal, Target: Pro Debug MACH Link Error : undefined: '__divdi3' (code) Referenced from 'IsValidNetAddr' in JavascriptMachODebugLib Referenced from 'ComputeGMT' in JavascriptMachODebugLib Project: SRCFromOriginal, Target: Pro Debug MACH Link Error : undefined: 'sprintf$LDBLStub' (code) Referenced from 'fill2' in JavascriptMachODebugLib Project: SRCFromOriginal, Target: Pro Debug MACH Link Error : undefined: '__umoddi3' (code) Referenced from 'fill2' in JavascriptMachODebugLib Project: SRCFromOriginal, Target: Pro Debug MACH Link Error : undefined: '__udivdi3' (code) Referenced from '_PR_InitClock' in JavascriptMachODebugLib Referenced from 'fill2' in JavascriptMachODebugLib Project: SRCFromOriginal, Target: Pro Debug MACH Here are the system libraries I found I had to add to resolve those undefined names. You probably do not need all of them. Experiment to see. Or use the 'nm' command to search for your symbols. Here are the libraries I ended up adding: /usr/lib/gcc/darwin/3.3/libgcc.a /usr/lib/libSystemStubs.a All those symbols with $LDBLStub in their name /usr/lib/libstdc++.6.dylib This is along with the ordinary (for me) MSL_C++_BSD_C_Mach-O.lib BSD_Runtime_Mach-O.lib these are in Codewarrior directory tree. and frameworks: System Carbon Hope this helps. Robert |
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