[Scons-users] Library configuration

[Brady Johnson]

You could definitely implement some command line arguments and use them to
pass in paths on-the-fly like you mention. Additionally, SCons has
integrated support for functionality similar to autoconf, as can be found
here:  http://www.scons.org/doc/production/HTML/scons-user/c4132.html

Hope that helps,

Brady

On Wed, Jun 20, 2012 at 5:25 AM, Evan Driscoll <driscoll at cs.wisc.edu> wrote:


> What's "best practice" for allowing users to specify the location of a

> library?

>

>

> For instance, suppose I have the following file:

>

>  // test.cpp

>  #include <boost/version.hpp>

>  #if BOOST_VERSION < 104601

>  #  error "You need a newer boost"

>  #endif

>

> If I compile this on my RHEL 5 office machine with just 'g++ test.cpp', it

> does

> not work. Instead, I have to pass a different include path. What I'm

> asking is

> how do you get that path into the construction environment (without hard-

> coding it, of course; assume that option is out)?

>

>

> There are so many potential choices; I'm trying to figure out if there's a

> standard, typical way:

>

> * Look at os.environment at C{,PP,XX,C}FLAGS and LDFLAGS and ParseFlags

> them

>   into your environment

>

> * Look at ARGUMENTS (or a Variables object) for *FLAGS

>

> * Look at ARGUMENTS for an argument like "with-boost-incdir=/blah/include"

>

> * Use {Add,Get}Option to look for an argument like

> "--with-boost-incdir=..."

>

>

> For instance, in my experience (I build packages fairly regularly, though

> I do

> admittedly run into the need to do something like this relatively

> infrequently) if I am trying to build a project with Autoconf, it seems

> like

> '--with-boost-incdir=...' and '-with-boost-libdir=...' are almost

> guaranteed

> to work, but if I were building an SCons project I don't think I'd know at

> all

> what to expect. This seems like a drawback.

>

> Evan

>

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