tree 11e0c11781ba0b867831eff47a4178a464cf00b3
parent 24d3d3754634532ae262075484e7c1d00d447152
author Marian Balakowicz <m8@semihalf.com> 1157132990 +0200
committer Marian Balakowicz <m8@semihalf.com> 1157132990 +0200

Add support for a saving build objects in a separate directory.
Modifications are based on the linux kernel approach and
support two use cases:

  1) Add O= to the make command line
  'make O=/tmp/build all'

  2) Set environement variable BUILD_DIR to point to the desired location
  'export BUILD_DIR=/tmp/build'
  'make'

The second approach can also be used with a MAKEALL script
'export BUILD_DIR=/tmp/build'
'./MAKEALL'

Command line 'O=' setting overrides BUILD_DIR environent variable.

When none of the above methods is used the local build is performed and
the object files are placed in the source directory.