ft2232_libftdi: perform basic configure checking when cross-compiling 73/1473/2
authorPaul Fertser <fercerpav@gmail.com>
Wed, 3 Jul 2013 09:54:16 +0000 (13:54 +0400)
committerAndreas Fritiofson <andreas.fritiofson@gmail.com>
Thu, 11 Jul 2013 12:43:56 +0000 (12:43 +0000)
When cross-compiling, current configure script fully ignores libftdi
unavailability and proceeds with LIBS having -lftdi -lusb, that
results in a non-obvious failure much later.

Try to verify libftdi is available by checking if ftdi_new function is
linkable.

Change-Id: I4f593d8ada1f38f82e7f1baa1a4b37b09619e1b4
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/1473
Tested-by: jenkins
Reviewed-by: Xiaofan <xiaofanc@gmail.com>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
configure.ac

index 6e3f986..87f95d5 100644 (file)
@@ -1128,7 +1128,8 @@ if test $build_ft2232_libftdi = yes -o $build_usb_blaster_libftdi = yes -o \
     ], [
       AC_MSG_ERROR([Cannot build & run test program using libftdi])
     ], [
-      AC_MSG_RESULT([Skipping as we are cross-compiling])
+      AC_MSG_RESULT([Skipping as we are cross-compiling, trying build only])
+      AC_SEARCH_LIBS([ftdi_new], [], [], [AC_MSG_ERROR([Cannot link with libftdi])])
     ])
 
 AC_MSG_CHECKING([for libftdi highspeed device support])