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ft2232_libftdi: perform basic configure checking when cross-compiling 

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>
This commit is contained in:
Paul Fertser 2013-07-03 13:54:16 +04:00 committed by Andreas Fritiofson
parent bb60cc4fef
commit 6aba462576
1 changed files with 2 additions and 1 deletions
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3
configure.ac
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@ -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])