diff -ur dvgrab-3.0.orig/configure.in dvgrab-3.0/configure.in
--- dvgrab-3.0.orig/configure.in	2007-08-07 09:51:47.000000000 +0700
+++ dvgrab-3.0/configure.in	2007-09-04 11:06:22.749719100 +0700
@@ -15,7 +15,28 @@
 
 dnl Checks for header files.
 AC_HEADER_STDC
-AC_CHECK_HEADERS(fcntl.h unistd.h stdio.h)
+AC_CHECK_HEADERS(fcntl.h unistd.h stdio.h sys/types.h inttypes.h sys/ioccom.h)
+
+AC_MSG_CHECKING([if inttypes has u_int32_t etc])
+AC_COMPILE_IFELSE(
+    [AC_LANG_PROGRAM(
+        [[
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#if HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+        ]],[[
+    u_int32_t  s;
+    sleep((unsigned int)s);
+        ]]
+    )],
+    [AC_DEFINE(HAVE_U_INT_TYPES, 1, [Define to 1 if have u_int32_t types etc])
+    AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)])
 
 dnl Checks for libraries.
 
@@ -86,6 +107,11 @@
 	AC_WARN(V4L2 headers missing; install linux 2.6 headers to use USB.)
 ])
 
+AC_CHECK_HEADERS(sys/videodev2.h,,
+[
+	AC_WARN(V4L2 headers missing.)
+])
+
 
 # EFENCE
 AC_ARG_WITH(efence,[  --with-efence        Use ElectricFence for debugging support.],