Since a non-cygwin gmake trips up the github cygwin action, let's just
require that the user put a good "make" early on their path (a simple
`ln -s `which gmake` ~/bin/make` with the right $PATH works fine).
Replace runtime SIMD check with a compile-only test in case of
cross-compilation.
You can still use '--enable-simd=no' to build x86_64 code without
SIMD instructions.
- Use -pedantic-errors with gcc to make an array-init fatal.
- Fix all the extra warnings that gcc outputs due to this option.
- Also add -Wno-pedantic to gcc if we're using the internal popt
code (since it has lots of pedantic issues).
- Rename unchanged_file() to quick_check_ok().
- Enhance quick_check_ok() to work with non-regular files.
- Add a get_file_type() function to the generator.
- Use the new functions in the generator code to make the logic simpler.
- Fix a bug where the `--alt-dest` functions were not checking if a
special file fully matched the non-permission mode bits before
deciding if we have found an alt-dest match.
- Enhance the `--info=skip --ignore-existing` output to include extra
info on if the existing file differs in type or passes the standard
quick-check logic.
- Add `--info=skip2` that authorizes rsync to perform a slow checksum
"quick check" when ignoring existing files. This provides the uptodate
and differs info even if we need to checksum a file to get it.
For a non-git build or for a git build w/o adequate git history, we now
allow the git-version.h file to be provided before the build. If the
file does not exist, we either create an empty file or put a define of
RSYNC_GITVER in it based on the output of git describe. The github
builds now snag the git-version.h file that was generated for the last
commit so that they all get the same version string, even with a shallow
checkout.
