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-rw-r--r--configure.ac13
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 7a7570eae..591d5df53 100644
--- a/configure.ac
+++ b/configure.ac
@@ -376,6 +376,19 @@ AM_PATH_LIBASSUAN("$NEED_LIBASSUAN_VERSION",
#
AM_PATH_KSBA("$NEED_KSBA_VERSION",have_ksba=yes,have_ksba=no)
+#
+# libusb allows us to use the integrated CCID smartcard reader driver.
+
+# Note, that we need the CVS version. FIXME: libusb should have a
+# regular check as the other libraries do.
+
+AC_CHECK_LIB(usb, usb_find_device,
+ [ LIBUSB_LIBS="$LIBUSB_LIBS -lusb"
+ AC_DEFINE(HAVE_LIBUSB,1,
+ [defined if libusb is available])
+ ])
+AC_SUBST(LIBUSB_LIBS)
+
#
# OpenSC is needed by the SCdaemon - if it is not availbale we can only