util/qemu-openpty: fix build with musl libc by include termios.h as fallback
Include termios.h as POSIX fallback when not glibc, bsd or solaris. POSIX says that termios.h should define struct termios and TCAFLUSH. http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/termios.h.html This fixes the following compile errors with musl libc: util/qemu-openpty.c: In function 'qemu_openpty_raw': util/qemu-openpty.c:112:20: error: storage size of 'tty' isn't known struct termios tty; ^ ... util/qemu-openpty.c:128:24: error: 'TCSAFLUSH' undeclared (first use in this function) tcsetattr(*aslave, TCSAFLUSH, &tty); ^ Signed-off-by: NNatanael Copa <ncopa@alpinelinux.org> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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