Re: how to tell gnatmake to send executables to a different directory when compiling multi source?

["Nasser M. Abbasi" <nma@12000.org>]

On 7/29/2012 7:20 PM, Vasiliy Molostov wrote:

>
> I doubt. I prefer makefiles in any kind, just because its widely used in
> unices, where most open-source software lives. Difficulty rises when
> someone comes with its own interface and tools, this makes things less
> compatible against environment. It is just an opinion, but I sure here is
> nothing devil or just anti-devil.
>

I had the same discussion in comp.lang.java sometime ago. Over there,
everyone would scream at me for not using Ant to build Java projects,
and I was using a Makefile.

Here, people will scream at me for not using GPR for building
Ada projects.

I see Make as the lowest common denominator. Unless GPRBUILD can
be used to build both Ada, Java, C, C++, etc.. and can be used also
to invoke latex to update my pdf files and HTML web pages when my
.tex files changes, and I can use it to do my backups and all
the other tasks I use Make for, then I do not see something better
as a general tool.

Javac (the Java compiler) actually works like gnatnmake in
many ways. i.e. doing

            javac -classpath ...  *.java

(can be done from inside Makefile) then javac knows which
other files it needs to compile so that the build is consistent
and complete. i.e. one does not need to tell it which java file
depends on which other.

Javac knows from the import statements and using the classpath it
can determine which java files to build.  Same with gnatmake,
I can just write

            gnatmake -I ...  *.adb

from inside Makefile and that is all. It knows what files to compile
as needed.

Only problem was when it comes to sending the object files
and the .exe to different places during the build. Ada is more
complicated and has more intermediate files generated.  If one
does not mind keeping all files generated in the same folder as
the sources, then the above is all what is needed for a basic
Ada project build.

--Nasser