K 10
svn:author
V 5
tobik
K 8
svn:date
V 27
2018-06-14T09:56:02.048243Z
K 7
svn:log
V 512
Mk/Uses/cargo.mk: Encode more crate build dependencies

- Add build/lib dependencies, environment variables to ports using
  the backtrace-sys, freetype-sys, gettext-sys, onig_sys,
  thrussh-libsodium crates instead of doing this individually for
  every port.

- Add a DEV_WARNING when using libc versions < 0.2.37 to prevent
  instability of Rust applications on 12.0-CURRENT [1]

- Sort cargo-crates-licenses output

Reviewed by:	pizzamig, jbeich [1]
Differential Revision:	https://reviews.freebsd.org/D15463

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