URL:
<http://savannah.gnu.org/bugs/?func=detailitem&item_id=16255>
Summary: export a unique slot number
Project: make
Submitted by: egmont
Submitted on: Monday 04/03/06 at 09:51
Severity: 3 - Normal
Item Group: Enhancement
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Component Version: 3.81
Operating System: Any
Fixed Release: None
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Details:
It would be cool if at parallel builds make exported a shell
variable whose value is a reasonably small integer that is
unique amongst the jobs running at the same time. For example
if I type "make -j10" then this would be a number from the 0..9
interval.
Rationale: we have a distributed build system where we build
packages of a complete Linux distribution. The actual build is
performed on several hosts, each one runs 1 build at a time.
The main server controls the whole procedure using a Makefile
set up based on the packages' build-time dependencies (loops
eliminated), and performing a "make -j <number_of_build_hosts>"
command to rebuild all the packages.
Currently we have some dirty tricks to find a free client that
does not run any build so is willing to accept the new one.
I think it wouldn't be too hard for make to tell this
explicitely, through the SLOT_NUMBER (or something else)
environment variable.
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