diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/kernel-features.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/kernel-features.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/kernel-features.h b/sysdeps/unix/sysv/linux/alpha/kernel-features.h index 6eae48f..83fdf91 100644 --- a/sysdeps/unix/sysv/linux/alpha/kernel-features.h +++ b/sysdeps/unix/sysv/linux/alpha/kernel-features.h @@ -54,4 +54,15 @@ #undef __ASSUME_CLONE3 #define __ASSUME_CLONE3 0 +/* Alpha did not provide BOTHER, CIBAUD or the termios2 ioctls until + kernel 4.20. Even though struct __kernel_termios and struct + termios2 are the same on Alpha, Calling the legacy TCSETS* ioctls + with BOTHER set triggers a bug in these old kernels, so only use + the legacy TCSETS* ioctl numbers if neither BOTHER nor split speed is + needed; that way the code will fail gracefully. */ +#if __LINUX_KERNEL_VERSION < 0x041400 +# undef __ASSUME_TERMIOS2 +# define __ASSUME_TERMIOS2 0 +#endif + #endif /* _KERNEL_FEATURES_H */ |