Nathalie Jarosz wrote:

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I have change of system: from linux, I am on a Unix workstation and when I compile program which used to work under linux, the following message appears: "Internal compiler error in 'emit_library_call_value', at calls.c:3198"

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What does it mean?

Exactly what it said: you just found bug in GPC itself (calls.c is part of GPC). In such cases you REALLY must supply all details: 1. What type of unix you are using (CPU version, OS version, etc). Sun Microsystems Inc. SunOS 5.7

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2. What type of GPC you are using (built against GCC v..., GPC v..., etc). gpc version 19991030 based on 2.95.2 19991024

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3. Sample code to get internal error. ?

Here is the routine which is involved:

function travel(djk:real;md:mat;A:minitable;Ak:real;ns,j:integer):real; {probability of an individual leaving patch j to reach patch k} const alpha = 4.910; zim = 0.263; lambda = 0.175; var Sj,t : real; begin Sj:=connect(md,A,ns,j); t:=(exp(-alpha*djk)*pow2(Ak,zim))/((lambda/Sj)+Sj); travel:=t; end;

This is exactly the same GPC bug that Clyde Meli has just reported. As I wrote last night, this bug has been fixed meanwhile. According to the `Fixed Bugs' section in the To-Do list <http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html>: 20000503: Sparc: division by reals (fjf237.pas, matt1.pas) or `Round (real_constant)' (chaput1.pas) make the compiler crash <199911040915.KAA11168@@humulus.daimi.au.dk> (Sparc is the processor used in Sun's machines.) Until there is a new GPC release with this bug fixed, you can work around by type-casting the constants to Real: const alpha = Real (4.910); zim = Real (0.263); lambda = Real (0.175); Frank -- Frank Heckenbach, frank@g-n-u.de, http://fjf.gnu.de/ GPC To-Do list, latest features, fixed bugs: http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html