#9733: Parallel build of Singular 3-1-1-4-package fails in rare case
-------------------------------------------------+--------------------------
Reporter: AlexanderDreyer | Owner:
AlexanderDreyer
Type: defect | Status:
positive_review
Priority: major | Milestone: sage-4.6
Component: packages | Keywords:
Author: Alexander Dreyer, François Bissey | Upstream: Fixed
upstream, in a later stable release.
Reviewer: Mitesh Patel, Leif Leonhardy | Merged:
Work_issues: |
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Comment(by leif):
Replying to [comment:31 AlexanderDreyer]:
> Sure, I can report this to Singular's trac.
Thanks, that would be nice.
> [...] For the flags, I need some additional information; The meaning
(and names) of flags highly depend on the build system of a given
software.
The names shouldn't, they're standard. ''How'' a package uses them might
differ, i.e. ''some'' flags might intentionally get overridden, but they
should never be ignored. Also, some packages won't e.g. use {{{LDFLAGS}}}
because they use {{{libtool}}} or use the C compiler driver for linking.
> So, each spkg-maintainer does need this knowledge for the system he/she
maintains anyway.
I agree an spkg maintainer should know the upstream's build process... ;-)
> But {{{CFLAGS}}} and {{{CXXFLAGS}}} would be more standard-conforming,
right?
? If this refers to (the use of) {{{CPPFLAGS}}}, these are the flags for
the C preprocessor, {{{cpp}}}. The preprocessor is rarely used directly,
but in the other case one should either pass them directly to the compiler
driver as well, or e.g. prepend them to {{{CFLAGS}}} and {{{CXXFLAGS}}}.
> BTW Singular compiles a lot of C-like code using the C++ compiler. This
may result in the observation, that the {{{CFLAGS}}} were ignored.
I haven't noticed that (but haven't inspected that either).
In that case, {{{CXXFLAGS}}} should have been used (when compiling C code
with e.g. {{{g++}}}), but that's not the case. I can give more details on
which files were compiled only using {{{CPPFLAGS}}} later. (To see which
flags are actually used, simply {{{export CFLAGS=-DHONORS_CFLAGS}}} etc.)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9733#comment:33>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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