* Add support for IBM threaded compilers, xl*_r
Added new compiler class, xl_r; added default flags to the compilers.yaml file.
* Add cppflags to the set of default flags to be added to the compilers stanza in compiler.yaml.
These flags are optional. Only defined flags will be listed in the compilers.yaml file.
* Fix scripting warnings revealed by flake8.
Updated __init__.py and xl_r.py to conform with flake8 rules.
* Add justification to the definition of the XL default compiler flags.
* Allow compiler wrapper to modify environment
This adds the ability to set environment variables in the compiler
wrappers. These are specified as part of the compilers.yaml config.
The user may also specify RPATHs in compilers.yaml that should be
added.
* Minor doc tweak
1) list gfortran as a fc and f77 compiler that can work with clang
2) allow compatible gfortran to ./spack compiler find with clang by matching version numbers
This is based on the discussions in
https://github.com/LLNL/spack/issues/237https://github.com/dealii/dealii/wiki/deal.II-in-Spack#mixing-gcc-and-clang-on-osx
This is not a long term solution but something to get us through the next months until the compiler
infrastructure is reworked to allow mixing and matching for C/C++ and Fortran compilers
Funded-by: IDEAS
Project: IDEAS/xSDK
Time: 1.5 hours
- Fixed up dependency management so that:
- build deps go in PATH and -I
- link deps go in -L args
- only *immediate* link deps are RPATH'd
The latter reduces the number of libraries that need to be added to
DT_NEEDED / LC_RPATH. This removes redundant RPATHs to transitive
dependencies.
- ld -r doesn't work with RPATH on OS X.
- for GNU ld, the -r option only means 'relocatable',
and doesn't affect RPATH.
- This adds special handling to omit RPATHs for ld -r on OS X
- removed a lot of old logic that was only still needed for tests.
- Added better unit tests for dependency RPATH, -L, and -I args
- tests now check whether the compiler omits -I args in link mode.
