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Re: build .o files to specific directory using automake
From: |
Ralf Wildenhues |
Subject: |
Re: build .o files to specific directory using automake |
Date: |
Wed, 17 Mar 2010 07:27:37 +0100 |
User-agent: |
Mutt/1.5.20 (2009-10-28) |
Hello,
the message you reply to doesn't seem to have made it to the list,
other than to nabble. It would have been helpful if you quote text
you reply to:
> > Usually makefile generated by automake will compile each source file
> > and output .o file in the same directory of the source file. How to
> > let automake output .o files to a specific directory at the same
> > time savely link them to my program/library?
* scleung wrote on Wed, Mar 17, 2010 at 03:29:15AM CET:
> I have searched some related threads and seems that it won't work like this
> way.
> All suggestions were using VPATH build.
Yes, indeed. They are documented for example here:
<http://www.gnu.org/software/automake/manual/html_node/VPATH-Builds.html>
Generally, this mechanism is more powerful and useful than moving
objects in a specific directory.
Another thing you might be interested in is the subdir-objects option;
<http://www.gnu.org/software/automake/manual/html_node/Program-and-Library-Variables.html#index-Objects-in-subdirectory-453>.
> So does it possible to change the current directory in configure script to
> specify the builddir?
Yes, by calling the configure script *from* the builddir-to-be, i.e.,
with the builddir as current directory.
> I also try to override top_builddir variable with AC_SUBST but it seems not
> work.
No, that won't work.
Hope that helps.
Cheers,
Ralf