Re: Setting up auto conf

[Dan Smithers]

Thanks Eric. The tutorial was great.

> According to Dan Smithers on 1/5/2009 5:01 AM:
>> My goal is to be able to set up parallel debug and release builds for
>> the different architectures.
> 
> Yes, that is provided by VPATH builds, provided by Automake.
> 
>> I would like to be able to build and link
>> without having to "install" until I'm happy with the work.
> 
> Yes, that is possible with DESTDIR support, also provided by using Automake.
> 
>> I would also like to be able to build the complete project from the top
>> level and also build sub-projects individually.
> 
> Yes, that is provided by Autoconf.

I set up parallel build directories and ran configure with extra arguments.

build/gcc/debug
../../../configure CC=gcc CPPFLAGS=-DDEBUG CFLAGS="-O0 -g"
build/gcc/release
../../../configure CC=gcc CPPFLAGS= CFLAGS="-O2"
build/icc/debug
../../../configure CC=icc CPPFLAGS=-DDEBUG CFLAGS="-O0 -g"
build/icc/release
../../../configure CC=icc CPPFLAGS= CFLAGS="-O2"

The sub projects seem to compile correctly, but the linker needs to know
which build it is using.

Before I added the parallel builds I was building in the build
directory. I could add paths like this:

foo_LDADD="-lm -L$(srcdir)/../lib -l3rd_party_lib
-L$(srcdir)/../../sublib/build/src -lsublib

I want to be able to automatically replace build with build/gcc/debug etc.

Is this something that autoconf can do? Is there a better way of
achieving this?

thanks

dan