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v4l2: fix build with old kernel headers

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Prior to v2.6.25-rc3, <linux/videodev2.h> didn't include all
required headers, resulting to omission of V4L2_* constants.

This issue doesn't arise in v4l2.c and tests/ioctl_v4l2.c files
because they already include all necessary headers themselves.

* configure.ac (AC_CHECK_DECLS): Include <sys/time.h>, <linux/ioctl.h>,
and <linux/types.h> before <linux/videodev2.h>.
This commit is contained in:
Дмитрий Левин 2016-05-14 00:36:27 +00:00
parent 3cc989e7fc
commit a8443f8695
1 changed files with 4 additions and 1 deletions

5
configure.ac

@ -837,7 +837,10 @@ AC_CHECK_DECLS(m4_normalize([
V4L2_CTRL_TYPE_STRING,
V4L2_CTRL_TYPE_BITMASK,
V4L2_CTRL_TYPE_INTEGER_MENU
]),,, [#include <linux/videodev2.h>])
]),,, [#include <sys/time.h>
#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/videodev2.h>])
AC_CACHE_CHECK([for BLKGETSIZE64], [ac_cv_have_blkgetsize64],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([