Re: Linking libraries from the command line using ObjectAda on Windows

[Steve Hancher <shancher@sd.aonix.com>]

Xavier SAUTEJEAU wrote:
> Hi Everyone,
> 
> From the command line, I'd like to know how to build an exe that links with
> a static library with ObjectAda.
> 
> Here is the library I want to build.
> 
> -- directory structure
>     LibCall.adb -- file that calls the library
>     Dummy.adb -- dummy file that Withs the library units
>     + P_hello
>        - P_hello.ads
>        - P_hello.adb
>     + P_hello_2
>        - P_hello2.ads
>        - P_hello2.adb
> 
> --P_hello2.ads
> package P_hello2 is
>  procedure hello;
> end P_hello2;
> 
> --P_hello2.adb
> With text_io;use text_io;
> package body P_hello2 is
>  procedure hello is
> begin
>   Put_Line("Hello library world 2");
>  end hello;
> 
> end P_hello2;
> 
> --P_hello.ads
> package P_hello is
>  procedure hello;
> end P_hello;
> 
> --P_hello.adb
> With text_io;use text_io;
> package body P_hello is
>  procedure hello is
> begin
>   Put_Line("Hello library world");
>  end hello;
> 
> end P_hello;
> 
> -- Dummy.adb
> With P_Hello;
> With P_Hello2;
> 
> procedure Dummy is
> begin
>  null;
> end dummy;
> 
> 
> To build the library I use the following commands
> 
> adareg P_hello\*.ad*
> adareg P_hello_2\*.ad*
> adareg dummy.adb
> adamake
> adabuild dummy
> dir /s /b *.obj > list.txt
> lib /out:hello.lib @list.txt
> del /q list.txt ada.lib unit.map
> 
> Here is the exe I want to build that links with the library.
> 
> -- libcall.adb
> With P_Hello;
> With P_Hello2;
> procedure libcall is
> begin
>  P_Hello.HELLO;
>  P_Hello2.HELLO;
> end Libcall;
> 
> 
> To build the exe I use the following commands
> 
> REM registering library search path
> adaopts -p.
> adaopts -lp .
> REM registering source files
> adareg P_hello_2\*.ads
> adareg P_hello\*.ads
> 
> adareg libcall.adb
> 
> adabuild libcall -ll hello
> 
> And I get the following output:
> ObjectAda Special Edition Version 7.2.2: adabuild
>     Copyright (c) 1997-2002 Aonix.  All rights reserved.
> Front end of libcall.adb succeeded with no errors.
> Front end of p_hello_2\p_hello2.ads succeeded with no errors.
> Front end of p_hello\p_hello.ads succeeded with no errors.
> libcall: Error: Source not found for P_hello2, NO_KIND.  Can't recompile.
> 
> libcall: Error: Source not found for P_hello, NO_KIND.  Can't recompile.
> 
> libcall: Error: Body not found for P_hello2
> 
> libcall: Error: Body not found for P_hello
> 
> libcall: Error: Link ended due to previous errors.
> 
> 
> Where did I go wrong ?
> 
> Any help would be appreciated.
> 
> 

You have a misunderstanding about the relationship between Ada libraries and
Windows libraries.  Creating a Windows library from Ada object files only
removes the requirement for the OBJ directory.  After creating the Windows
library, you should not delete either ADA.LIB or UNIT.MAP.  Then, libcall.adb
should be compiled into a different Ada library with a reference (via adaopts)
to the Ada library containing P_hello and P_hello2.  By the way, you don't
need to compile dummy.adb, you don't need to build dummy, and the adamake
won't work because you have never compiled anything.