[Mingw-users] Error linking static library

[<fab...@ti...>]

  

Hello. 

I tried to use MinGW to compile a program and link it with
libFLAC_static.lib, found at
http://sourceforge.net/projects/flac/files/flac-win/flac-1.2.1-win/flac-1.2.1-devel-win.zip/download
. Linking failed with the errors


c:/[...]/flac/lib/libFLAC_static.lib(./Release_static/stream_decoder.obj):C:cygwinhomeAdm:(.text[_seek_to_absolute_sample_]+0x529):
undefined reference to
`_allmul'
c:/[...]/flac/lib/libFLAC_static.lib(./Release_static/stream_decoder.obj):C:cygwinhomeAdm:(.text[_seek_to_absolute_sample_]+0x534):
undefined reference to
`_aulldiv'
c:/[...]/mingw48_32/bin/../lib/gcc/i686-w64-mingw32/4.8.0/../../../../i686-w64-mingw32/bin/ld.exe:
c:/[...]/flac/lib/libFLAC_static.lib(./Release_static/stream_decoder.obj):
bad reloc address 0x534 in section
`.text[_seek_to_absolute_sample_]'
collect2.exe: error: ld returned 1
exit status 

After investigating a little, I found out that the cause
is that libFLAC_static.lib was created with Microsoft Visual Studio,
using runtime library Multi-threaded DLL (/MD switch). Some Googling
reveals that more static libraries floating around have similar
problems, for example MySQL. 

Using nm, I found out that the import
library msvcrt.lib present in Microsoft Visual Studio does define
_allmul and_aulldiv, while libmsvcrt.a present in MinGW does not.


Maybe MinGW's libmsvcrt.a should be updated to solve this
incompatibility? 

Regards,
Fabrizio  

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Scopri istella, il nuovo motore per il web italiano.
Istella garantisce risultati di qualità e la possibilità di condividere, in modo semplice e veloce, documenti, immagini, audio e video.
Usa istella, vai su http://www.istella.it?wtk=amc138614816829636