Re: [Help-glpk] Trouble installing GLPKMEX

[Andrew Makhorin]

> Thanks for your quick response! I downloaded the alternate gplkcc.cpp
> file and tried to reinstall GLPKMEX. I was thrown these errors,

> ---------------------------------------------------------------------

> In function ‘char* strcpy(char*, const char*)’,
>      inlined from ‘void mexFunction(int, mxArray**, int, const 
> mxArray**)’ at glpkcc.cpp:732:
> /usr/include/bits/string3.h:106: warning: call to char* 
> __builtin___strcpy_chk(char*, const char*, long unsigned int) will 
> always overflow destination buffer
> In function ‘char* strcpy(char*, const char*)’,
>      inlined from ‘void mexFunction(int, mxArray**, int, const 
> mxArray**)’ at glpkcc.cpp:736:
> /usr/include/bits/string3.h:106: warning: call to char* 
> __builtin___strcpy_chk(char*, const char*, long unsigned int) will 
> always overflow destination buffer

There is an error in the original glpkmex code. To fix it replace
line 724:

    char save_filetype[4];

by the following one:

    char save_filetype[5];

Nevertheless, now compilation is successful.

> /usr/bin/ld: /usr/lib/libglpk.a(glpapi01.o): relocation R_X86_64_32
> against `a local symbol' can not be used when making a shared object; 
> recompile with -fPIC
> /usr/lib/libglpk.a: could not read symbols: Bad value
> collect2: ld returned 1 exit status

Looks like there is some incompatibility between libglpk.a and the
glpkmex object code you just compiled.

>      mex: link of ' "glpkcc.mexa64"' failed.

>??? Error using ==> mex at 213
> Unable to complete successfully.

>Error in ==> makeglpkmex at 111
> eval(['mex ' cmd]);

>Error in ==> run at 57
>            evalin('caller', [s ';']);