diff --git a/configure.ac b/configure.ac
index f06488a..0413374 100644
--- configure.ac
+++ configure.ac
@@ -159,7 +159,7 @@ case $host in
                   [have_video4linux=true
                    AC_DEFINE(HAVE_V4L, 1,
 		             [Building for Linux - using the video4linux API])],
-                  [AC_MSG_ERROR([videodev.h not found - please install the linux kernel headers])])
+                  [AC_MSG_WARN([videodev.h not found - please install the linux kernel headers])])
    ;;
 esac
 AM_CONDITIONAL(HAVE_V4L, test x$have_video4linux = xtrue)
diff --git a/autogen.sh b/autogen.sh
index c894008..f5c6a7c 100755
--- autogen.sh
+++ autogen.sh
@@ -1,4 +1,3 @@
 #!/bin/sh
 # Run this to generate all the initial makefiles, etc.
-export ACLOCAL="aclocal -I missing_M4"
 autoreconf -f -i