qcap: Add optional dependency on libv4l.
diff --git a/configure.ac b/configure.ac
index 453ba7a..f823045 100644
--- a/configure.ac
+++ b/configure.ac
@@ -65,6 +65,7 @@
AC_ARG_WITH(pthread, AS_HELP_STRING([--without-pthread],[do not use the pthread library]),
[if test "x$withval" = "xno"; then ac_cv_header_pthread_h=no; fi])
AC_ARG_WITH(sane, AS_HELP_STRING([--without-sane],[do not use SANE (scanner support)]))
+AC_ARG_WITH(v4l, AS_HELP_STRING([--without-v4l],[do not use v4l1 (v4l support)]))
AC_ARG_WITH(xcomposite,AS_HELP_STRING([--without-xcomposite],[do not use the Xcomposite extension]),
[if test "x$withval" = "xno"; then ac_cv_header_X11_extensions_Xcomposite_h=no; fi])
AC_ARG_WITH(xcursor, AS_HELP_STRING([--without-xcursor],[do not use the Xcursor extension]),
@@ -1138,6 +1139,14 @@
WINE_NOTICE_WITH(sane,[test "x$ac_cv_lib_soname_sane" = "x"],
[libsane ${notice_platform}development files not found, scanners won't be supported.])
+dnl **** Check for libv4l1 ****
+if test "x$with_v4l" != "xno"
+then
+ WINE_CHECK_SONAME(v4l1,v4l1_open,,,)
+fi
+WINE_NOTICE_WITH(v4l,[test "x$ac_cv_lib_soname_v4l1" = "x"],
+ [libv4l ${notice_platform}development files not found.])
+
dnl **** Check for libgphoto2 ****
if test "x$with_gphoto" != "xno"
then
