* clang: do xcode mockup iff requested by a package
* add a note
* add pkg to setup_custom_environment() and decide whether or not to use mockup XCode there based on the package
* build_environment: allow compilers to set up an environment
* clang: mock up a toolchain directory for xcode
Some projects ignore CC and CXX flags and instead use xcode to find the
toolchain. Clang on Apple should set up the environment properly.
Arguably, every compiler could do this on Apple, but let's see how this
works out just for AppleClang for now.
The Documentation directory is ~1.7G and the excluded platforms add up
to about 7G. Ignoring swift saves another 500M. The resulting Xcode.app
copy is in the 2G range.
* compiler: set member variables early
This is required so that later methods can query things such as the
version of the compiler.
* compiler: support finding the real path of the compiler
On Apple, the /usr/bin compilers are actually wrapping tools themselves
which query xcrun for the currently selected Xcode installation. Pierce
this veil and get the real, full path the to underlying compilers
instead.
* icu4c: install with rpath
On macOS, icu installs with a library ID of the library name. Enabling
rpath makes its ID its full installed path which lets Qt5 link against
it successfully.
* qt: no -no-gtkstyle flag on Qt5 on macOS
Patch doesn't work with @when unless you specify a patch for every
version. When running `spack patch` for a version without a patch,
spack thinks that a patch exists, tries to apply it, but it doesn't
exist. Spack gets very confused.
- Gave setup_environment and setup_dependent_environment more similar
signatures. They now allows editing the Spack env and the runtime
env for *this* package and dependents, respectively.
- modify_module renamed to setup_dependent_python_module for symmetry
with setup_dependent_environment and to avoid confusion with
environment modules.
- removed need for patching Package objects at runtime.
- adjust packages to reflect these changes.
- This version provides updates to provided cmake scripts that are required
for building cmake-gui.
+ Provide download/build instructions for version 3.5.0.
- When building the +qt variant, add a validate function to ensure that
qt-5.4.0 is not used (this version of qt has errors related to cmake).
Package repositories now look like this:
top-level-dir/
repo.yaml
packages/
libelf/
package.py
mpich/
package.py
...
This leaves room at the top level for additional metadata, source,
per-repo configs, indexes, etc., and it makes it easy to see that
something is a spack repo (just look for repo.yaml and packages).
