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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: including C routines in Ada (newbie ask for assistance)
Date: 09 May 2001 06:39:34 +0100
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Date: 2001-05-09T05:39:34+00:00
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serious@clerk.com (Noam Kloos) writes:

> Hi Once I had someone show me how to write routines in C and import
> them into Ada source with pragma Import(....);
> I know how to do a system call pragma import(C,C_System,"system"); but
> how do I access a c source file I have written myself?

For a start, you write similar pragma Imports for your own
functions. Then you have to link against the object files.

If you are using GNAT, and you have your main Ada program in foo.adb
and your C in bar.c, you would need

  gcc -c bar.c
  gnatmake foo -largs bar.o

(to start with, it can get more complicated of course!)