These modules are not meant to be included by user code, they are
only an internal implementation detail for CPack. Having them live
in the main Modules directory with documentation was misleading, so
they have been moved into Modules/Internal/CPack, and their
documentation has been stripped following its move into the new
"CPack Generators" section. No-op modules which contained only
documentation have been removed entirely.
The only module that hasn't been moved is CPackIFW, because it
contains user-facing macros which would be lost if it were moved.
So, the CPackIFW module has been updated with a note explaining what
needs to (eventually) happen.
We now require C++11 support including `override`. Drop use of
the old compatibility macro. Convert references as follows:
git grep -l CM_OVERRIDE -- '*.h' '*.hxx' '*.cxx' |
xargs sed -i 's/CM_OVERRIDE/override/g'
Adds an option CPACK_ENABLE_FREEBSD_PKG to allow CPack to look
for FreeBSD's libpkg / pkg(8). If this is set and the libpkg
headers and library are found (which they will be, by default,
on any FreeBSD system), then add a FreeBSD pkg(8) generator.
The FreeBSD package tool pkg(8) uses tar.xz files (.txz) with two
metadata files embedded (+MANIFEST and +COMPACT_MANIFEST).
This introduces a bunch of FreeBSD-specific CPACK_FREEBSD_PACKAGE_*
variables for filling in the metadata; the Debian generator does
something similar. Documentation for the CPack CMake-script is styled
after the Debian generator.
Implementation notes:
- Checks for libpkg -- the underlying implementation for pkg(8) --
and includes FreeBSD package-generation if building CMake on
a UNIX host. Since libpkg can be used on BSDs, Linux and OSX,
this potentially adds one more packaging format. In practice,
this will only happen on FreeBSD and DragonflyBSD.
- Copy-paste from cmCPackArchiveGenerator to special-case
the metadata generation and to run around the internal
archive generation: use libpkg instead.
- Generating the metadata files is a little contrived.
- Most of the validation logic for package settings is in
CPackFreeBSD.cmake, as well as the code that tries to re-use
packaging settings that may already be set up for Debian.
- libpkg has its own notion of output filename, so we have
another contrived bit of code that munges the output file
list so that CPack can find the output.
- Stick with C++98.
