domoticz: enable GPIO support

When cross-compiling Domoticz on a system without GPIO, the WITH_GPIO
flag is not set by cmake, and GPIO support is disabled as a result.
Enabling GPIO support by adding the flag to TARGET_CXXFLAGS.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

utils/domoticz/Makefile

@@ -11,7 +11,7 @@ PKG_NAME:=domoticz
 PKG_VERSION_MAJOR:=3
 PKG_VERSION_PATCH:=8153
 PKG_VERSION:=$(PKG_VERSION_MAJOR).$(PKG_VERSION_PATCH)
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/domoticz/domoticz/archive/$(PKG_VERSION)/$(PKG_SOURCE)
@@ -62,6 +62,8 @@ CMAKE_OPTIONS += \
 	-DUSE_STATIC_OPENZWAVE=no \
 	-DUSE_PYTHON=no
 
+TARGET_CXXFLAGS+=-DWITH_GPIO
+
 define Build/Prepare
 	$(call Build/Prepare/Default)
 	# Fix APPVERSION to suppress update popup