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From: Martin Krischik <krischik@users.sourceforge.net>
Newsgroups: comp.lang.ada
Subject: Re: packages
Date: Thu, 21 Dec 2006 10:01:51 +0100
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Date: 2006-12-21T10:01:51+01:00
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Bj�rn Lundin schrieb:
> 
> 20 dec 2006 kl. 22.11 skrev markww:
> 
>> Hi,
>>
>> I wrote a package to be included with my main program, my directory
>> looks like:
>>
>>      generic_list.ads  // package def
>>      generic_list.adb  // package body
>>      AdaGenericLinkedList.adb // my main program
>>
>> Now I need all three to be present in the same directory to compile the
>> main adb file with gnat make.
> 
> gnatmake compiles AND builds for you
> 
> try moving generic_list.adb and then _compile_ AdaGenericLinked_List.adb
> 
> gcc -c AdaGenericLinked_List.adb
> 
> You should get an object file of that. But to link, you need the 
> generic_list.adb too

Or alternativly the .o and .ali file created from generic_list. In case 
you don't want to distribute then .ads/.adb file.

In short you need one of those to link:

1) .adb & .ads
2) .o & .ali
3) .lib & .ali
4) .dll/.so  & .ali

In C++ speak: the .ali files are kind of "precompiled header files". 
Also Note: This is the way GNAT implement the an Ada-Library-Manager. 
Other compiler might use different techniques.

Martin