package/openocd: require wchar for the xds110 driver

The xds110 driver requires wchar, and is enabled by default. Make sure
to disable xds110 when wchar support is missing.

Fixes:
http://autobuild.buildroot.net/results/530bfe22ff509cf4ebfdf99a183312a1053f505f/
http://autobuild.buildroot.net/results/956538a0a6029137db19cce30dc340e2e30dd166/
http://autobuild.buildroot.net/results/ae7da2ce1389ece44a4ca65108fee02e318df7b3/

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/openocd/Config.in

@@ -144,6 +144,15 @@ config BR2_PACKAGE_OPENOCD_ARMEW
 	  Enable building support for the Olimex ARM-JTAG-EW
 	  Programmer (default is auto)
 
+config BR2_PACKAGE_OPENOCD_XDS110
+	bool "TI XDS110 Debug Probe"
+	depends on BR2_USE_WCHAR
+	depends on BR2_TOOLCHAIN_HAS_THREADS # libusb
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libusb
+	select BR2_PACKAGE_LIBUSB
+	help
+	  Enable building support for the TI XDS110 Debug Probe.
+
 config BR2_PACKAGE_OPENOCD_PARPORT
 	bool "pc parallel port driver"
 	help
@@ -233,4 +242,8 @@ comment "many openocd adapters needs a toolchain w/ threads, gcc >= 4.9"
 	depends on !BR2_TOOLCHAIN_HAS_THREADS || \
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 
+comment "xds110 adapter support needs toolchain w/ wchar"
+	depends on !BR2_USE_WCHAR
+	depends on BR2_TOOLCHAIN_HAS_THREADS && BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+
 endif # BR2_PACKAGE_OPENOCD

package/openocd/openocd.mk

@@ -49,6 +49,7 @@ OPENOCD_CONF_OPTS += \
 	$(if $(BR2_PACKAGE_OPENOCD_VSLLINK),--enable-vsllink,--disable-vsllink) \
 	$(if $(BR2_PACKAGE_OPENOCD_USBPROG),--enable-usbprog,--disable-usbprog) \
 	$(if $(BR2_PACKAGE_OPENOCD_RLINK),--enable-rlink,--disable-rlink) \
+	$(if $(BR2_PACKAGE_OPENOCD_XDS110),--enable-xds110,--disable-xds110) \
 	$(if $(BR2_PACKAGE_OPENOCD_ARMEW),--enable-armjtagew,--disable-armjtagew) \
 	$(if $(BR2_PACKAGE_OPENOCD_CMSIS_DAP),--enable-cmsis-dap,--disable-cmsis-dap) \
 	$(if $(BR2_PACKAGE_OPENOCD_PARPORT),--enable-parport,--disable-parport) \