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linux-user: Fix compilation when F_SETPIPE_SZ isn't defined 

Older kernels don't have F_SETPIPE_SZ and F_GETPIPE_SZ (in
particular RHEL6's system headers don't define these). Add
ifdefs so that we can gracefully fall back to not supporting
those guest ioctls rather than failing to build.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 1467304429-21470-1-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2016-06-30 17:33:49 +01:00
parent 8a0b4de048
commit ddf31aa853
1 changed files with 2 additions and 0 deletions
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2
linux-user/syscall.c
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@ -5598,10 +5598,12 @@ static int target_to_host_fcntl_cmd(int cmd)
case TARGET_F_SETOWN_EX: case TARGET_F_SETOWN_EX:
return F_SETOWN_EX; return F_SETOWN_EX;
#endif #endif
#ifdef F_SETPIPE_SZ
case TARGET_F_SETPIPE_SZ: case TARGET_F_SETPIPE_SZ:
return F_SETPIPE_SZ; return F_SETPIPE_SZ;
case TARGET_F_GETPIPE_SZ: case TARGET_F_GETPIPE_SZ:
return F_GETPIPE_SZ; return F_GETPIPE_SZ;
#endif
default: default:
return -TARGET_EINVAL; return -TARGET_EINVAL;
} }