From: highcalcula...@gmail.com
Sent: Friday, June 19, 2015 8:06 PM
To: mpir-devel@googlegroups.com
Subject: Re: [mpir-devel] Re: MPIR MinGW installation - "undefined reference
to '_imp____gmpz_init'
I would like to call it from Matlab using mex files, and there, the
compiler complains that it does not see any ".lib" files (when compiling
with "mex ... -lmpir" it looks for a file "libmpir.lib") .
[snip]
Compiler answer:
"myfile.obj : error LNK2019: unresolved external symbol __imp___gmpf_init
referenced in function "void __cdecl myfile(double)" "
That's interesting ... you've given the directive to link to "-lmpir", no
such library is found, but instead of croaking then and there the process
continues anyway ? (I don't know Matlab at all.)
Does it work if you rename libmpir.a (or whatever your existing mingw import
library is called) to libmpir.lib ?
It's a while since I've tried to use mingw-built libraries with a Microsoft
compiler and I'm not sure whether that simplistic approach works.
The fact that your object file is ".obj" instead of ".o" would indicate that
it's built with a Microsoft Compiler - so, if need be, you should be able to
build the requisite ".lib" file from the dll using your Microsoft Compiler
installation's lib tool (as Bill has hinted).
Cheers,
Rob
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