This adds support for MacOS (Monteray onward, although should work on older MacOSes). The BSD wrapper for poll/ppoll has been lifted from the work the folks over at OpenSSH have done -- thanks!

ok stsp

Use the same idiom as in the strtonum(3) manpage which produces a more readable error message. OK kn, stsp

ok naddy

Clear the search highlighting when replacing the content of a diff view ('<', '>', '[', ']', 'a', 'w') or a blame view ('b', 'p', 'B'). Previously the position would remain highlighted even if the text there had changed. ok stsp@ or a blame view

ok naddy@

ok naddy tracey

The letter "o" does not overlap with existing options of 'got ref' and is also used by mutt(1) for this purpose.

Need for filtering by path sugggested by kn@ ok naddy@

As with OpenBSD, FreeBSD requires that _XOPEN_SOURCE_EXTENDED is defined before including <ncurses.h>, otherwise things break. On other systems (Linux), _XOPEN_SOURCE_EXTENDED is already defined, so leaving that declared unconditionally throws an error. Keep the definition, but only include it on !Linux systems. Issue reported by Christian "naddy" Weisgerber

ok tracey

Fix the thread comparison with tog's blame view.

When checking for ncurses, only check against the widechar version of the library, otherwise the code won't work correctly, despite it compiling properly. Helped by Thomas Dickey.

This commit modifies the GoT main branch to be able to compile it under linux.

pthread_yield(3) is an optional POSIX 2001 extension while sched_yield(2) is part of POSIX 2008. On OpenBSD they are actually equivalent, albeit not documented as such. Using sched_yield(2) helps the -portable version. Patch by Quentin Rameau

ok jasper

ok tracey

ok stsp

ok tracey stsp

This should avoid unexpected behaviour resulting from unrelated key presses messing with the log view's state variables. Pointed out by tracey, and also discussed with jasper. ok tracey