Starting with OpenSceneGraph 3.5.5, support for windows managed by Qt
has been moved to the seperate project osgQt. Hence, a dependency on Qt
is not needed any longer for version 3.5.5 or newer.
In order to still satisfy the dependency on OpenGL, a depends_on('gl')
has been added.
without setting the build enviroment, the installation fails with
```
1 error found in build log:
35946 fmtutil [INFO]: /usr/local/pkg/Installs/linux-ubuntu18.04-skylake_avx512/gcc7.4.0/texlive/20190410/rgs2nakycorkgzno/t
exmf-var/web2c/pdftex/pdfcslatex.fmt installed.
35947 fmtutil [INFO]: Disabled formats: 6
35948 fmtutil [INFO]: Successfully rebuilt formats: 45
35949 fmtutil [INFO]: Total formats: 51
35950 fmtutil [INFO]: exiting with status 0
35951 ==> [2020-09-07-21:23:21.482745] '/usr/local/pkg/Installs/linux-ubuntu18.04-skylake_avx512/gcc7.4.0/texlive/20190410/
rgs2nakycorkgzno/bin/x86_64-linux/mtxrun' '--generate'
>> 35952 /usr/bin/env: 'texlua': No such file or directory
```
May be there is a better way...
Cython requires a library that is available in Python 3.8, or before
Python 3.8 with setuptools. This specifies that setuptools is a run
dependency to allow running with Python < 3.8
`spack install --yes-to-all` doesn't actually make the build non-interactive,
but that is why people typically use it. This documents that you must also
specify `--no-checksum` for a fully non-interactive build.
* Modules: Deduplicate suffixes but don't sort them.
The suffixes' order is defined by the order in which they appear in the configuration file.
* Modules: Modify tests to use spack_yaml.load_config.
spack_yaml.load_config ensures that the configuration is stored in an ordered manner. Without this change, the behavior of the tests did not match Spack's.
* Modules: Tweak the suffixes test to better catch ordering issues.
* new package: py-textblob
add variant to py-nltk to allow for data download/installation
add dependencies to py-nltk so that bin/nltk works
* add resources and resource generation script
