FFTW can build only one floating point precision (float, double, long double, quad) at once, but they can all be installed simultaneously as the libraries have different names. It is common packages to decide only at run time which precision FFTW they need, and thus FFTW should offer all precisions at once.
The gold linker support and gold plugin variants now use the same name.
Trying to apply use-flag-style discipline here despite the fact gold has
other implications for clang, this way globally enabling gold will have
a more consistent effect if that becomes possible. The gold support in
gcc could use more testing to ensure it works consistently, but as long
as a binutils including gold is used the gcc configure tends to pick it
up, and it seems to work with 5.3.0 at least.
- mirrors.yaml now uses dict order for precedence, instead of lists of
dicts.
- spack.cmd now specifies default scope for add/remove and for list
with `default_modify_scope` and `default_list_scope`.
- commands that only read or list default to all scopes (merged)
- commands that modify configs modify user scope (highest
precedence) by default
- These vars are used in setup_paraser for mirror/repo/compiler.
- Spack's argparse supports aliases now.
- added 'rm' alias for `spack [repo|compiler|mirror] remove`
This update significantly reworks the llvm and clang packages. The llvm
package now includes variants allowing it to build and install any and
all of:
* clang
* lldb
* llvm's libunwind (why, WHY did they name it this?!?)
* polly (including building it directly into the clang tools, 3.7.0 only)
* clang extra tools
* compiler-rt (sanitizers)
* clang lto (the gold linker plugin that allows same to work)
* libcxx/libcxxabi
* libopenmp, also setting the default openmp runtime to same, when
parameters happen this shoudl be an option of libomp or libgomp
Ideally, this should have rpath setup like the gcc package does, but
clang's driver has no support for specs as such, and no clearly
equivalent mechanism either. If anyone has ideas on this, they would be
welcome.
One significant note related to gcc though, if you test this on LLNL
systems, or anywhere that has multiple GCCs straddling the dwarf2
boundary and sharing a libstdc++, build a gcc with spack and use that to
build clang. If you use a gcc4.8+ to build this with an older
libstdc++ it will fail on missing unwind symbols because of the
discrepancy.
Resource handling has been changed slightly to move the unpacked archive
into the target rather than use symlinks, because symlinks break certain
kinds of relative paths, and orders resource staging such that nested
resources are unpacked after outer ones.
This solution doesn't really make me happy, but does seem to work. It
sorts the resources by the length of the string representing their
destination. Since any nested resource must contain another resource's
name in its path, it seems that should work, but there should be a
better way to do this.
This allows resources to be placed into subdirectory trees that may not
exist in the base package, and may depend on other resources to be
staged later.
A pile of libraries and tools, libedit is actually important as a
replacement of readline for non-GPL projects. Also ninja may be
worthwhile for some of the larger CMake projects, like llvm/clang.
Yay for non-portable declaration syntax. After the previous screwiness
I ran this through a number of shells, and found that this is the most
portable version I coudl seem to get.
