qemu FTBFS on sparc: conflicting types of tcflag_t?

[Michael Tokarev <mjt@tls.msk.ru>]

Hello.

One of our packages started to FTBFS on Sparc, here's the first
build log that shows the issue:

 https://buildd.debian.org/status/fetch.php?pkg=qemu&arch=sparc&ver=1.5.0%2Bdfsg-1&stamp=1369117249

The relevant portion:

  CC    i386-linux-user/linux-user/syscall.o
In file included from /usr/include/sparc-linux-gnu/asm/termios.h:5:0,
                 from /usr/include/linux/termios.h:5,
                 from /build/buildd-qemu_1.5.0+dfsg-1-sparc-34y5XW/qemu-1.5.0+dfsg/linux-user/syscall.c:92:
/usr/include/sparc-linux-gnu/asm/termbits.h:12:25: error: conflicting types for 'tcflag_t'
/usr/include/sparc-linux-gnu/bits/termios.h:25:22: note: previous declaration of 'tcflag_t' was here
make[2]: *** [linux-user/syscall.o] Error 1

This happens due to

 #include <linux/termios.h>

in the source.

asm/termbits.h, line 12, reads:

 typedef unsigned long   tcflag_t;

bits/termios.h, line 25:

 typedef unsigned int tcflag_t;

This is inside system headers.  So I'm not
sure I can fix that in the source of my
package.  Moreover, this same package builds
on other architectures.

To me it looks like a bug in system headers.

Help?

Thanks,

/mjt