Only build v4l_id if V4L1 header file is available

[elogind.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 7fda8bba47b6217b7c91aab7b4bdaa7e1a551965..2ceba56191617bed5987406cdb2c39e073d50a8d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([udev], [165], [linux-hotplug@vger.kernel.org])
+AC_INIT([udev], [166], [linux-hotplug@vger.kernel.org])
 AC_PREREQ(2.60)
 AM_INIT_AUTOMAKE([check-news foreign 1.10 dist-bzip2 subdir-objects])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
@@ -115,6 +115,9 @@ if test "x$enable_extras" = xyes; then
 
        AC_CHECK_HEADER([linux/input.h], [:], AC_MSG_ERROR([kernel headers not found]))
        AC_SUBST([INCLUDE_PREFIX], [$(echo '#include <linux/input.h>' | eval $ac_cpp -E - | sed -n '/linux\/input.h/ {s:.*"\(.*\)/linux/input.h".*:\1:; p; q}')])
+
+       AC_CHECK_HEADER([linux/videodev.h], [have_videodev_h=yes], [])
+       AM_CONDITIONAL(HAVE_V4L1, [test "x$have_videodev_h" = "xyes"])
 fi
 AM_CONDITIONAL([ENABLE_EXTRAS], [test "x$enable_extras" = xyes])