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AC_ARG_WITH(libusb,
[AC_HELP_STRING(--with-libusb,
[enable control of some mouse models through libusb @<:@default=check@:>@])],
[], with_libusb=check)
USB_LIBS=
USB_CFLAGS=
have_libusb=no
if test "x$with_libusb" != xno; then
AC_PATH_PROG(LIBUSBCONFIG,libusb-config,no)
if test $LIBUSBCONFIG != "no"; then
USB_LIBS="$($LIBUSBCONFIG --libs)"
USB_CFLAGS="$($LIBUSBCONFIG --cflags)"
AC_CHECK_LIB(usb,main,
[have_libusb=yes
AC_DEFINE(HAVE_LIBUSB, 1, [Defined if you have libusb])],
[], [$USB_LIBS]
)
fi
if test "x$with_libusb" != xcheck && test "x$have_libusb" = xno; then
AC_MSG_ERROR([--with-libusb was given, but test for libusb failed])
fi
fi
AC_SUBST(USB_LIBS)
AC_SUBST(USB_CFLAGS)
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