X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=configure.ac;h=424b00022729e4ba70671bfdc17518c3b8646ed0;hp=90291772580af6fd3dd7cb8e9218bc4531dcd28c;hb=d466f61cdcf2eb49dad3849a416e141da1435755;hpb=672a5e8ffbbba0ec0f8996a4e90fec04afaadd8f

diff --git a/configure.ac b/configure.ac
index 90291772..424b0002 100644
--- 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