ftdi: address ftdi_usb_purge_buffers() deprecation in libftdi 1.5

[libsigrok.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 90291772580af6fd3dd7cb8e9218bc4531dcd28c..424b00022729e4ba70671bfdc17518c3b8646ed0 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -616,6 +616,7 @@ AM_COND_IF([BINDINGS_CXX], [
 ])
 
 # Check for specific libusb features, now that we know the CFLAGS.
+# Also check for version dependent libftdi features.
 AC_LANG([C])
 sr_save_cflags=$CFLAGS
 sr_save_libs=$LIBS
@@ -625,6 +626,7 @@ AC_CHECK_TYPES([libusb_os_handle],
        [sr_have_libusb_os_handle=yes], [sr_have_libusb_os_handle=no],
        [[#include <libusb.h>]])
 AC_CHECK_FUNCS([zip_discard])
+AC_CHECK_FUNCS([ftdi_tciflush ftdi_tcoflush ftdi_tcioflush])
 LIBS=$sr_save_libs
 CFLAGS=$sr_save_cflags