build: added more warnings and errors to SITL build

more closely match PX4 build

mk/board_native.mk

@@ -11,7 +11,15 @@ DEFINES        +=   $(EXTRAFLAGS)
 DEFINES        +=   -DCONFIG_HAL_BOARD=$(HAL_BOARD) -DCONFIG_HAL_BOARD_SUBTYPE=$(HAL_BOARD_SUBTYPE)
 WARNFLAGS       =   -Wformat -Wall -Wshadow -Wpointer-arith -Wcast-align -Wno-unused-parameter -Wno-missing-field-initializers
 WARNFLAGS      +=   -Wwrite-strings -Wformat=2
-WARNFLAGSCXX    =   -Wno-reorder
+WARNFLAGSCXX    = -Wno-reorder \
+	-Werror=unused-but-set-variable
+	-Werror=format-security \
+	-Werror=array-bounds \
+	-Wfatal-errors \
+	-Werror=unused-but-set-variable \
+	-Werror=uninitialized \
+	-Werror=init-self \
+	-Wno-missing-field-initializers
 DEPFLAGS        =   -MD -MT $@
 
 CXXOPTS         =   -ffunction-sections -fdata-sections -fno-exceptions -fsigned-char