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Bug Fix : Apply Compiler Flags Specified by Manual Compiler Configuration (#1532)

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* Fixed a bug causing config-specified compiler flags to be ignored.
Updated the compiler config so all flags are in a separate section.

* Updated the documentation for the `compilers.yaml` file spec.

* Implemented basic testing for the 'flags' section of compiler config.

* Fixed a few minor problems with the manual compiler config documentation.
This commit is contained in:
Joseph Ciurej
2016-10-24 14:37:03 -07:00
committed by Todd Gamblin
parent e35c023c61
commit 7dd14870ce
7 changed files with 138 additions and 65 deletions
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75
lib/spack/docs/getting_started.rst
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@@ -218,12 +218,14 @@ If you want to see specifics on a particular compiler, you can run
$ spack compiler info intel@15
intel@15.0.0:
cc = /usr/local/bin/icc-15.0.090
cxx = /usr/local/bin/icpc-15.0.090
f77 = /usr/local/bin/ifort-15.0.090
fc = /usr/local/bin/ifort-15.0.090
modules = []
operating system = centos6
paths:
cc = /usr/local/bin/icc-15.0.090
cxx = /usr/local/bin/icpc-15.0.090
f77 = /usr/local/bin/ifort-15.0.090
fc = /usr/local/bin/ifort-15.0.090
modules = []
operating system = centos6
...
This shows which C, C++, and Fortran compilers were detected by Spack.
Notice also that we didn't have to be too specific about the
@@ -244,7 +246,7 @@ Each compiler configuration in the file looks like this:
compilers:
- compiler:
modules = []
modules: []
operating_system: centos6
paths:
cc: /usr/local/bin/icc-15.0.024-beta
@@ -253,39 +255,46 @@ Each compiler configuration in the file looks like this:
fc: /usr/local/bin/ifort-15.0.024-beta
spec: intel@15.0.0:
For compilers, like ``clang``, that do not support Fortran, put
For compilers that do not support Fortran (like ``clang``), put
``None`` for ``f77`` and ``fc``:
.. code-block:: yaml
paths:
cc: /usr/bin/clang
cxx: /usr/bin/clang++
f77: None
fc: None
spec: clang@3.3svn:
Once you save the file, the configured compilers will show up in the
list displayed by ``spack compilers``.
You can also add compiler flags to manually configured compilers. The
valid flags are ``cflags``, ``cxxflags``, ``fflags``, ``cppflags``,
``ldflags``, and ``ldlibs``. For example:
.. code-block:: yaml
compilers:
- compiler:
modules = []
operating_system: OS
modules: []
operating_system: centos6
paths:
cc: /usr/local/bin/icc-15.0.024-beta
cxx: /usr/local/bin/icpc-15.0.024-beta
f77: /usr/local/bin/ifort-15.0.024-beta
fc: /usr/local/bin/ifort-15.0.024-beta
cc: /usr/bin/clang
cxx: /usr/bin/clang++
f77: None
fc: None
spec: clang@3.3svn
Once you save the file, the configured compilers will show up in the
list displayed by ``spack compilers``.
You can also add compiler flags to manually configured compilers. These
flags should be specified in the ``flags`` section of the compiler
specification. The valid flags are ``cflags``, ``cxxflags``, ``fflags``,
``cppflags``, ``ldflags``, and ``ldlibs``. For example:
.. code-block:: yaml
compilers:
- compiler:
modules: []
operating_system: centos6
paths:
cc: /usr/bin/gcc
cxx: /usr/bin/g++
f77: /usr/bin/gfortran
fc: /usr/bin/gfortran
flags:
cflags: -O3 -fPIC
cxxflags: -O3 -fPIC
cppflags: -O3 -fPIC
spec: intel@15.0.0:
spec: gcc@4.7.2
These flags will be treated by spack as if they were entered from
the command line each time this compiler is used. The compiler wrappers
@@ -527,7 +536,7 @@ configuration in ``compilers.yaml`` illustrates this technique:
compilers:
- compiler:
modules = [gcc-4.9.3, intel-15.0.24]
modules: [gcc-4.9.3, intel-15.0.24]
operating_system: centos7
paths:
cc: /opt/intel-15.0.24/bin/icc-15.0.24-beta
@@ -568,7 +577,7 @@ flags to the ``icc`` command:
compilers:
- compiler:
modules = [intel-15.0.24]
modules: [intel-15.0.24]
operating_system: centos7
paths:
cc: /opt/intel-15.0.24/bin/icc-15.0.24-beta