diff --git a/configure.ac b/configure.ac
index d20179d..0391cb2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -74,18 +74,24 @@ AC_MSG_RESULT([$os_win32])
 AM_CONDITIONAL([OS_WIN32], [test "$os_win32" = "yes"])
 
 # Checks for USB support.
+AC_ARG_ENABLE([libusb], AS_HELP_STRING([--disable-libusb], [Do not look for libusb]))
+AS_IF([test "x$enable_libusb" != "xno"], [
 PKG_CHECK_MODULES([LIBUSB], [libusb-1.0], [have_libusb=yes], [have_libusb=no])
 if test "$have_libusb" = "yes"; then
 	AC_DEFINE([HAVE_LIBUSB], [1], [libusb support])
 	AC_SUBST([DEPENDENCIES], [libusb-1.0])
 fi
+])
 
 # Checks for hidapi support.
+AC_ARG_ENABLE([hidapi], AS_HELP_STRING([--disable-hidapi], [Do not look for hidapi]))
+AS_IF([test "x$enable_hidapi" != "xno"], [
 PKG_CHECK_MODULES([HIDAPI], [hidapi], [have_hidapi=yes], [have_hidapi=no])
 if test "$have_hidapi" = "yes"; then
 	AC_DEFINE([HAVE_HIDAPI], [1], [hidapi support])
 	AC_SUBST([DEPENDENCIES], [hidapi])
 fi
+])
 
 # Checks for IrDA support.
 AC_CHECK_HEADERS([winsock2.h af_irda.h], [irda_win32=yes], [irda_win32=no], [