Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool. Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience. Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.
Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices. It also references version control
history for more precise information. Therefore we no longer need to spell
out the list of Contributors in each source file notice.
Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing". The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.
Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically. Manually fix up shebang lines and trailing
newlines in a few files. Manually update the notices in a few files that the
script does not handle.
Configure the build_mingw.cmake.in config_mingw.cmake.in files
into the binary directory of the directory being built, not the
top level binary directory for the project.
We do not yet support "make install" in the external project case.
Document this explicitly in the interface. Require the caller to use an
option to "disable" the unsupported behavior. This will allow us to add
the behavior by default in the future without clobbering existing
projects that handle the installation themselves.
cmake_add_fortran_directory uses imported targets when using the
mingw fortran compiler. This change makes those targets global
in scope so they act just like the real targets that exist when
a fortran compiler exists and regular add_subdirectory is used.
Verify that MINGW_GFORTRAN not only points to a MinGW gfortran but also
one that compiles for the target architecture. This prevents using a
32-bit gfortran in a 64-bit MSVC build.
In the find_program(MINGW_GFORTRAN) call use the PATHS option for
hard-coded guesses instead of HINTS. This allows the user environment
to override the guesses and corrects usage of the command options.
Fix the implementation to allow full paths with spaces. Change the
interpretation of relative paths to be with respect to the current binary
directory. This matches the convention used in ExternalProject. Test
both full and relative paths in the VSGNUFortran test.
This patch adds a new module that allows for easy integration of MinGW
gfortran and the Visual Studio compiler. It is done in a function called
cmake_add_fortran_subdirectory. The patch also includes a test for this
feature.
Brad King
Kitware Robot
Bill Hoffman