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Re: How to specify a library as dependecy to a executable

From: ittium
Subject: Re: How to specify a library as dependecy to a executable
Date: Fri, 16 Dec 2011 18:40:42 +0530

On Thu, Dec 15, 2011 at 10:31 PM, Stefano Lattarini <
address@hidden> wrote:

>  On Thursday 15 December 2011, ittium  wrote:
> > Group,
> > I have a which is building a executable. This executable
> > depends on certain libraries. I want to put these libraries as
> dependencies
> > to the executable so that when library got build, executable is also
> built
> > (if build from top level dir), I have many tried some option from net e.g
> > specifying "LIBRARY=" variable, none is working. Please let me know, how
> to
> > do this.
> > thanks
> > Ittium
> >
> Something like this should work:
>  lib_LIBRARIES = libfoo.a
>  bin_PROGRAMS = bar
>  bar_LDADD = libfoo.a
> or better again, in case your library is only useful to build your program
> and is not meant to be installed:
>  noinst_LIBRARIES = libfoo.a
>  bin_PROGRAMS = bar
>  bar_LDADD = libfoo.a
> For more information about the use of LDADD, see also:
>  <>
> HTH,
>  Stefano

thanks Stefano, I think, I could not explain the issue clearly. I have a
build system which build libraries followed by some binaries (libraries and
binaries reside in different directories), these binaries link with
libraries earlier built. If I change some source file in library, library
will be recompiled. What I want is when make file for executable find out
some library has changed, It should relink automatically on calling make.

bin_PROGRAMS=fooclient fooserver

In above case if any of the library mentioned in LDADD
(here libnet_handler.a) change, I want automatic relinking of binaries
assuming source files for binary have not changed

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