Require at least automake 1.14

This gives us a few more features, and a few less conditionals
conditionally reimplementing features added to automake
before automake 1.14.

automake 1.14 is almost the same automake version requirement
as libexif uses (libexif requires 1.14.1).

automake 1.14 has been released 2013-06-20. If you ever
need to build a post 2021 libgphoto2 from git on a
system with pre 1.14 automake, you can can always
prepare a tarball using "make dist" on a system with
automake 1.14 or later, and build that tarball on the
older machine.

0 files changed, 0 insertions, 0 deletions