Re: Compiling Ada from another directory

[Simon Wright <simon.j.wright@mac.com>]

rotinom <rotinom@gmail.com> writes:

> On Sep 12, 7:02 pm, a...@anon.org (anon) wrote:
>> #
>> # The "bind" and "link" functions do not require command line options
>> #
>> gcc -c -o _build/Bottles.o src/Bottles.adb
>> gnatbind _build/Bottles.ali
>> gnatlink _build/Bottles.ali
>>
>
> I played with the project files yesterday, and they do what I want,
> however I would then have to maintain them, and they
>
> After playing around with it, it appears that this is the *best*
> solution.  The downside however, is that gnatbind creates the b~*
> "temporary" files in the current directory.  gnatlink is kind enough
> to remove them, however it still sort of stinks. I'd need to go back
> and check, but I seem to recall that if I "slowed" gnatmake -P
> <project file> down to build one step at a time, it was able to place
> the b~* files in the "Object" directory.

I really think you should reconsider.

If you don't use GPRs you're going to have to use Makefile equivalents
which will be hugely more complicated to get right.

gnatmake always puts b~ files in the object directory.

Just as a 'simple' self-contained example,

   project EWS is

     for Main use ("ews-server-test", "ews-make_htdocs");
     for Exec_Dir use ".";

     for Source_Dirs use
       (
        ".",
        external ("HOME") & "/bc",
        external ("HOME") & "/xmlada/**"
       );

     for Object_Dir use ".build";

     --  GLIDE (GPS?) configuration.
     package IDE is

        for Compiler_Command ("ada") use "gnatmake";
        for Gnatlist use "gnatls";

     end IDE;

     --  GNATMAKE configuration options.
     package Builder is

        for Default_Switches ("ada") use
          (
           "-g",
           "-j2",
           "-m"
          );

     end Builder;

     --  GCC configuration options.
     package Compiler is

        for Default_Switches ("ada") use
          (
           "-gnatqQafoy",
           "-gnatwaL",
           "-O2"
          );

     end Compiler;

     -- GNATBIND configuration options.
     package Binder is

        for Default_Switches ("ada") use ("-E");

     end Binder;

     --  GNATLINK configuration options.
     package Linker is

     end Linker;

   end EWS;