src/usr.bin/fsync, branch upstream/11.2.0

MFC r326276:

2018-03-05T07:26:05Z

various: general adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.

Add META_MODE support.

2015-06-13T19:20:56Z

Off by default, build behaves normally. WITH_META_MODE we get auto objdir creation, the ability to start build from anywhere in the tree. Still need to add real targets under targets/ to build packages. Differential Revision: D2796 Reviewed by: brooks imp

dirdeps.mk now sets DEP_RELDIR

2015-06-08T23:35:17Z

Updated dependencies

2014-05-16T14:09:51Z

Updated dependencies

2014-05-10T05:16:28Z

Updated dependencies

2013-03-11T17:21:52Z

Updated dependencies

2013-02-16T01:23:54Z

Sync FreeBSD's bmake branch with Juniper's internal bmake branch.

2012-08-22T19:25:57Z

Requested by: Simon Gerraty

Build usr.bin/ with WARNS=6 by default.

2010-01-02T10:27:05Z

Also add some missing $FreeBSD$ to keep svn happy.

Correct some style nits that I have mistakenly submitted as

2005-01-26T15:17:25Z

suggestions which result in the last revision[*]: - style(9) and sysexits(3) suggests that we use EX_* as exit values, instead of some other values like those returned from a system call as errno. Additionally, follow Ruslan's suggestion about style(9) and other style improvements: - Since open(2) says that it returns -1 on errors, explicitly determine whether it is returning -1 rather than whether the return value is less than zero. - Only set rval when there is no previous error. This distinguishes the first error that occours. - Use exit() in favor of return in main(), this is suggested in old style(9), while the evolve has fade the suggestion. - Add some NOTREACHED comments. - Add blank line after first { because no local variables in usage() Thanks to Ruslan for his tireless explaining of the code standards and knowledge of the history of style(9). [*] Pointy hat to: me Submitted by: ru (with some minor changes) Discussed with: ru, ssouhlal