xiaoxiang781216 opened a new pull request, #18841:
URL: https://github.com/apache/nuttx/pull/18841
## Summary
`CONFIG_HAVE_LONG_LONG` is set to `1` for every modern toolchain that NuttX
supports, so the indirection is no longer useful. Drop the config knob and
the surrounding `#ifdef`/`#ifndef CONFIG_HAVE_LONG_LONG` ladders, and treat
`long long` as unconditionally available across the OS.
## Impact
- `include/nuttx/compiler.h`: remove all `#define`/`#undef` of the macro and
the dead `#ifndef CONFIG_HAVE_LONG_LONG` block at the end of the file.
- Headers and sources under `include/`, `drivers/`, `fs/`, `libs/`, `sched/`:
unwrap `#ifdef CONFIG_HAVE_LONG_LONG` (keep then-branch, drop else-branch),
drop `#ifndef CONFIG_HAVE_LONG_LONG` blocks (always dead).
- `libs/libc/libc.csv`: drop unconditional/now-dead rows referencing the
macro and clear the column where the condition was always true.
- `libs/libc/fixedmath/lib_fixedmath.c`: removed (entire file body was the
dead `#ifndef` branch).
- `Documentation/applications/netutils/ntpclient/index.rst`: drop the bullet.
## Testing
- `tools/checkpatch.sh -f` is clean on all changed files (only pre-existing
long-line / case-on-new-line errors remain in untouched code).
## Companion PR
apache/nuttx-apps companion PR is required for the apps/-side preprocessor
clean-up.
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