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Re: [Help-glpk] Linker error while compiling with glpk.h

From: Andrew Makhorin
Subject: Re: [Help-glpk] Linker error while compiling with glpk.h
Date: Tue, 10 Apr 2012 00:51:47 +0400

> When I try to compile a C program using glpk functions, I get the the
> following error at the linker. I've checked the include path and it
> contains glpk.h and the lib contains libglpk. I'm compiling on a
> 64-bit machine running ubuntu 11.10
> /tmp/ccPR8ZKY.o: In function `main':
> scheduler_main.c:(.text+0x10): undefined reference to
> `glp_create_prob'
> scheduler_main.c:(.text+0x2b): undefined reference to
> `glp_set_prob_name'
> scheduler_main.c:(.text+0x3f): undefined reference to
> `glp_set_obj_name'
> [...]

Probably you forgot to specify the glpk object library for the linker,
i.e. 'gcc ... -lglpk ...' .

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