Add everything that uses xgetrandom(), and also everything that has
tests (but isn't still in pending) to the macos_defconfig.
I've sorted the list because it's impossible to manage otherwise.
All of the tests pass, except for the tar tests that were already
failing because there's no *group* called "root" on macOS (group 0
is called "wheel" instead). I haven't fixed that because it's quite
invasive, and TIL we're already ignoring macOS test failures in the
github CI (which is why we hadn't noticed this). There's also one
failure in the truncate tests: macOS doesn't do sparse file extension.
I'd put the rtc_wkalarm struct in the globals to get it zeroed for
free, but since there's no such type on macOS, that breaks the
build. Rather than define a bogus struct in portability.h, I've
gone for making it an explicitly-zeroed local. (And I've sorted the
locals largest-first.)
Note that the use of struct rtc_time as if it was the same as struct
tm in this code follows the existing code in hwclock, but I worry
that we're going to have trouble with that because of the extra
tm_gmtoff and tm_zone fields in struct tm. But that's a worry for
another day...
This patch also removes the CONFIG_CP_PRESERVE from the macos_miniconfig,
since that option was removed a while back.
Trivial breakage from the recent refactoring.
Also add tail to the default config for macOS.
I'm still unconvinced that CONFIG_TAIL_SEEK makes sense in a world
where inotify support is always built in, but that's an argument
for another day...
toybox "make menuconfig" currently fails to build if the compiler is in C99
mode (clang 3.6 and gcc 5.0 snapshots default to C99 mode, you can also
reproduce the failure with older gcc by using 'make menuconfig HOSTCC="gcc
-std=gnu99"').
The problem is that inline semantics changed in C99, and kconf_id_lookup's
inline-ness depends on C89 semantics there.
toys/*.c. Move relevant info into comment at the top of each toys/*.c. Also
convert more of Makefile into a thin wrapper around shell scripts that actually
do the work. (Makefile is only still there for the user interface.)
