[PATCH cygport 0/4] Support dependencies with version relations

[Ken Brown <kbrown at cornell dot edu>]

This patch series presupposes the name change of DEPEND to
BUILD_DEPENDS proposed by Jon in
https://sourceware.org/ml/cygwin-apps/2017-10/msg00018.html.

Ever since setup began using libsolv, setup (and calm) are able to
support dependencies with version relations.  These can be specified
in the 'depends:' field of a .hint file like this:

depends: cygwin (>=2.10), bash (=4.4.12-3)

This patch series adds cygport support for such dependencies.  The
user can specify versioned dependencies via a new [PKG_]DEPENDS
variable, and cygport generates versioned dependencies in its
auto-generated .hint files.  The latter is intended to avoid problems
like the one reported here:

  https://cygwin.com/ml/cygwin/2018-03/msg00365.html

An obvious potential problem is the confusion between the new DEPENDS
and the old DEPEND (which is an obsolete alias for BUILD_DEPENDS after
Jon's renaming).  I've chosen to ignore that problem in these patches,
except for a warning in the documentation.  At the very least, a
HEADSUP email to maintainers will be required.  Alternatively, we
could drop DEPENDS and insist on PKG_DEPENDS even if there's only one
package.


Ken Brown (4):
  pkg_dist: use 'depends:' instead of 'requires:' in generated .hint
    files
  pkg_dist: add support for dependencies with version relations
  pkg_dist: record package versions in "depends:"
  Update sample.cygport

 data/sample.cygport | 10 ++++-
 lib/pkg_pkg.cygpart | 91 +++++++++++++++++++++++++++++++++++++++------
 2 files changed, 88 insertions(+), 13 deletions(-)

-- 
2.17.0