build: fix broken ftd2xx bus blaster

If configure is executed without --enable-ft2232_ftd2xx then the bus blaster
or presto will fail to build with unresolved external ftd2xx_status_string.

Make sure we run the ftd2xx build test if --enable-usb_blaster_ftd2xx is enabled.

Change-Id: I09d270d6fcd083d77f6785b8969d9acb3dfef11d
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/892


Tested-by: jenkins
Reviewed-by: Peter Stuge <peter@stuge.se>

configure.ac

@@ -886,7 +886,7 @@ then
    AC_MSG_ERROR([The option: with_ftd2xx_linux_tardir is for LINUX only.])
 fi
 
-if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
+if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes -o $build_usb_blaster_ftd2xx = yes ; then
    AC_MSG_CHECKING([for libftd2xx.a (darwin)])
 
    if test ! -f /usr/local/include/ftd2xx.h ; then
@@ -907,7 +907,7 @@ then
    AC_MSG_ERROR([The option: --with-ftd2xx-win32-zipdir is for win32 only])
 fi
 
-if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
+if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes -o $build_usb_blaster_ftd2xx = yes ; then
    # Must be linux
    if test $host_os != linux-gnu && test $host_os != linux ; then
       AC_MSG_ERROR([The (linux) ftd2xx library from FTDICHIP.com is linux only. Try --enable-ft2232-libftdi instead])
@@ -970,7 +970,7 @@ if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
 fi
 fi # linux
 
-if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes; then
+if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes -o $build_usb_blaster_ftd2xx = yes ; then
 
 # Before we go any further - make sure we can *BUILD* and *RUN*
 # a simple app with the "ftd2xx.lib" file - in what ever form we where given

src/jtag/drivers/ftd2xx_common.h

@@ -22,7 +22,7 @@
 #ifndef _FTD2XX_COMMON_H
 #define _FTD2XX_COMMON_H
 
-#if BUILD_FT2232_FTD2XX == 1
+#if ((BUILD_FT2232_FTD2XX == 1) || (BUILD_PRESTO_FTD2XX == 1) || (BUILD_USB_BLASTER_FTD2XX == 1))
 #include <ftd2xx.h>
 
 static const char *ftd2xx_status_string(FT_STATUS status)