flsll is needed for makefs's new ZFS support, and the others are added
for completeness.
Reviewed by: emaste, arichardson
Fixes: 240afd8c1f ("makefs: Add ZFS support")
Differential Revision: https://reviews.freebsd.org/D36134
Whilst the commit message documented some of the details, I had intended
to include this comment in the actual header, but failed to amend the
commit properly.
Fixes: 9e5b0d9eac ("cross-build: Fix bmake bootstrap with glibc 2.34")
MFC after: 1 week
As of glibc 2.34, our unistd.h wrapper's inclusion of stdlib.h exposes
fragility in glibc's sys/wait.h and corresponding part of stdlib.h,
leading to "error: use of undeclared identifier 'WNOHANG'" and similar
errors when bootstrapping bmake.
Work around this by wrapping sys/wait.h to force stdlib.h's inclusion
first before it's implicitly included during the problematic window in
sys/wait.h.
MFC after: 1 week
There is a __used member in glibc's posix_spawn_file_actions_t in
spawn.h, so we must temporarily undefine __used when including it,
otherwise Support/Unix/Program.inc fails to build. This is based on
similar handling for __unused in other headers.
Fixes: 31ba4ce889 ("Allow bootstrapping llvm-tblgen on macOS and Linux")
MFC after: 1 week
This is needed to bootstrap llvm-tblgen on Linux since LLVM calls
`::open(...)` which does not work if open is a statement macro.
Also stop defining O_SHLOCK/O_EXLOCK and update the only bootstrap tools
user of those flags to deal with missing definitions.
Reviewed By: jrtc27
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D31226
Older glibc headers did some very nasty things that have since been
sanitised. We could also fix this by adding a linux/getopt.h wrapper
alongside the existing common/getopt.h that #undef's __need_getopt, but
that seems a little more hacky and complicated.
Reviewed by: arichardson
These headers are required in order to build the bootstrap tools on macOS
and Linux. A follow-up commit will add implementations of functions that
don't exist on those operating systems to -legacy when bootstrapping.
Reviewed By: brooks
Differential Revision: https://reviews.freebsd.org/D14316
