#13287: Override more compiler-related environment variables if Sage's GCC is
used
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Reporter: leif
| Owner: leif
Type: defect
| Status: needs_review
Priority: minor
| Milestone: sage-5.3
Component: scripts
| Resolution:
Keywords: GCC spkg CPP FC F77 F95 Fortran compiler preprocessor
sage-env | Work issues:
Report Upstream: N/A
| Reviewers:
Authors: Leif Leonhardy
| Merged in:
Dependencies:
| Stopgaps:
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Changes (by {'newvalue': u'Leif Leonhardy', 'oldvalue': ''}):
* status: new => needs_review
* author: => Leif Leonhardy
Old description:
> Currently only `CC` and `CXX` get modified (in `spkg/bin/sage-env`) if
> Sage's GCC spkg is installed (more precisely, if
> `$SAGE_LOCAL/bin/{gcc,g++}` are present).
>
> We should also set / override `CPP` and (at least) also various commonly-
> used Fortran compiler variables to make sure the versions from ''Sage's''
> GCC installation get used, since the user may have specified these, and
> the build might break (due to mixing different compiler versions). (As
> an example, building ECL currently fails if `$CPP` finds `ffi.h` although
> it is not really installed system-wide, but rather only in e.g.
> `/usr/lib/<ARCH>/<$CPP's version>/include/`; see [comment:ticket:13150:5]
> ff.)
New description:
Currently only `CC` and `CXX` get modified (in `spkg/bin/sage-env`) if
Sage's GCC spkg is installed (more precisely, if
`$SAGE_LOCAL/bin/{gcc,g++}` are present).
We should also set / override `CPP` and (at least) also various commonly-
used Fortran compiler variables to make sure the versions from ''Sage's''
GCC installation get used, since the user may have specified these, and
the build might break (due to mixing different compiler versions). (As an
example, building ECL currently fails if `$CPP` finds `ffi.h` although it
is not really installed system-wide, but rather only in e.g.
`/usr/lib/<ARCH>/<$CPP's version>/include/`; see [comment:ticket:13150:5]
ff.)
----
Apply
* [attachment:trac_13287-set_CPP_FC_etal_if_GCC_spkg_is_installed.patch]
to the '''Sage root''' repository.
--
Comment:
Initial patch now attached here.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13287#comment:4>
Sage <http://www.sagemath.org>
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