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POCompiling Mathematica 8 mathlink.h using gcc
 

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  1. POCompiling Mathematica 8 mathlink.h using gcc
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    <p>I'm trying to get my program to talk to Mathematica using MathLink. I'm using cygwin, and mathematica 8.0.</p> <p>I can compile the equivalent of the "AddTwo" program and use it successfully by using the x86_64-w64-mingw32-gcc.exe compiler (as installed with cygwin).</p> <p>However, if I try to use gcc to do the compilation, I have a whole tonne of errors in mathlink.h. Here are the first few lines of what I get:</p> <pre><code>gcc -c -static-libgcc -I/cygdrive/c/Program\ Files/Wolfram\ Research/Mathematica/8.0/SystemFiles/Links/MathLink/DeveloperKit/Windows-x86-64/CompilerAdditions/mldev64/include talk.c In file included from talk.c:1:0: mathlink.h:996:1: error: expected ‘)’ before ‘*’ token mathlink.h:997:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘MLDeviceMain’ </code></pre> <p>The reason that I want to use gcc is that I want to use the gsl libraries in my code. I can use them easily enough with gcc, but I can't for the life of me figure out how to get the mingw compilers working with the gsl libraries. Here are the error messages I get from mingw with gsl:</p> <pre><code>"x86_64-w64-mingw32-gcc.exe" -o Loops.exe ./loops.o -L/usr/lib -lgsl -lgslcblas /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgsl.dll.a when searching for -lgsl /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgsl.a when searching for -lgsl /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgsl.a when searching for -lgsl /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgsl.dll.a when searching for -lgsl /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgsl.a when searching for -lgsl /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: cannot find -lgsl /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgslcblas.dll.a when searching for -lgslcblas /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgslcblas.a when searching for -lgslcblas /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgslcblas.a when searching for -lgslcblas /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgslcblas.dll.a when searching for -lgslcblas /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: skipping incompatible /usr/lib/libgslcblas.a when searching for -lgslcblas /usr/lib/gcc/x86_64-w64-mingw32/4.5.3/../../../../x86_64-w64-mingw32/bin/ld: cannot find -lgslcblas </code></pre> <p>Any assistance greatly appreciated (I know, I know, go to a *nix machine and everything will work... but I just can't afford another Mathematica license).</p>
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    1. COMingw *is* gcc packaged for Windows. The reason of your problem is that you have a 64 bit version of mingw and 32 bit version of libgsl (or the other way around,, I'm never sure with their naming conventions).
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      1. POCompiling Mathematica 8 mathlink.h using gcc
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    2. COCan you suggest a way to figure out which I've got here?
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    3. COTry `dumpbin /headers` on your obj and lib files.
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      1. USn.m.
 

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