On Mon, 21 Aug 2006 18:43:15 +0200
Vincent Snijders <[EMAIL PROTECTED]> wrote:
> Alain Michaud wrote:
> > Hi,
> > this message is not for reporting a bug but I would like to know
> > more about the following:
> >
> > When I open a "New Project" / "Application", then the following
> > external function WORKS WELL:
> >
> > function j0(x:double):double;cdecl;external 'c';
> >
> > Now, when I open a "New Project" / "Program", then I get a "link"
> > error!
> >
> > It seems that I need some unit (Interfaces may be?) in order to link
> > properly, but I would like to know exactely what it is, and how to
> > use it in a professional way.
> >
> > Thank you for teaching me.
> >
> > Alain Michaud
> >
> > p.s. : for those who are not sure about the function j0 : It is
> > called Bessel function. It is part of the standard C library
> > (libc.so). Its prototype is in the "math.h" file. I am using linux.
> >
>
> An lcl application links to libc library on linux, because it uses
> gtk that is written in c.
>
> An custom program doesn't link to c.
You can add
{$linklib c}
Mattias
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