[Scons-users] changing the build directory

[dev at mgautier.fr]

Hello Sean,

The variant dir change your working directory in the variant dir .
As there is no source in it, your os.walk doesn't find them.
As Dirk said, you can use Glob to automatically handle variant_dir
(and it is probably the better solution if you don't want to do some special
handling)

You can also handle the variant_dir "by yourself" :

def find_source_files(directory, ext = "cpp"):
    print "current", os.getcwd()
    print "directory", directory
    _directory = Dir(directory).srcnode().abspath
    print "_directory", _directory
    matches = []
    # look in scr dir
    for root, dirnames, filenames in os.walk(_directory):
      print root, dirnames, filenames
      for filename in fnmatch.filter(filenames, '*.' + ext):
          # return files in original directory (build dir)
          matches.append(os.path.join(directory, filename))
    print "matches:", matches
    return matches



However, testing my solution, I found strange behavior that seems to be a bug in
Scons:

If build directory doesn't exist, the current directory is not changed.
If build directory exists, the current directory is changed to it.

Scons men, can you confirm it is really a bug ?


Sean, with your solution and without build dir, this bug cause you will properly
found the source files.
(However you will still build .o in your src dir instead of your build dir)



Matthieu.




> Le 11 mars 2013 à 07:18, Sean Ochoa <sean.m.ochoa at gmail.com> a écrit :

>

>  Man, this is super annoying.

> 

>  I've got a problem with changing the build directory (via variant_dir).  Its

> not finding the source files.

> 

>  Can someone who has used scons before give me some feedback on my project

> layout and help me understand why this is failing?

>   <http://stackoverflow.com/q/15328995/86263>

>

>  --

>  Sean

>