#9185: Update Singular's spkg-install for building multiple spkgs in parallel
----------------------------+-----------------------------------------------
Reporter: mpatel | Owner: tbd
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-5.0
Component: packages | Keywords:
Author: Mitesh Patel | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Changes (by mpatel):
* cc: mhansen (added)
Comment:
We already build Singular, ECL, and some other packages (e.g., Maxima and
ATLAS) serially. I'm pretty sure that this ticket and its related tickets
(#9186, #9187) don't change that. In particular, Singular's `spkg-
install` already contains
{{{
#!sh
# since parallel make breaks the singular build
MAKE="make"
export MAKE
}}}
and ECL's `spkg-install` already contains
{{{
#!sh
# 'export MAKE='make -j n' where n>1, breaks ECL builds, so unset make
unset MAKE
}}}
R's `spkg-install` already contains
{{{
#!sh
#parallel make install is broken
export MAKE=make
}}}
I don't know the details about why we don't build/install these packages
in parallel. Perhaps their upstream build systems (`Makefiles`, etc.)
have too many "serialisms"? It would be great if `make -jN` did work for
ATLAS, ECL, Maxima, and Singular, since these packages seem to contribute
significantly to the overall build time.
Isn't `-j` a
non-[http://www.opengroup.org/onlinepubs/009695399/utilities/make.html
POSIX] argument for make? The MAKEFLAGS change, which is also GNU make-
specific, hasn't affected my builds on t2 and sage.math, but we could
certainly restrict it to OS X.
Mike, do you happen to know how #8306 fares on Cygwin?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9185#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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