+# You get 'threads support' in the normal
+# and profiling ways.
+ifeq "$(GhcRtsThreaded)" "YES"
+ifeq "$(way)" ""
+SRC_CC_OPTS += -DTHREADED_RTS
+SRC_HC_OPTS += -optc-DTHREADED_RTS
+PACKAGE_CPP_OPTS += -DTHREADED_RTS
+endif
+ifeq "$(way)" "p"
+SRC_CC_OPTS += -DTHREADED_RTS
+SRC_HC_OPTS += -optc-DTHREADED_RTS
+PACKAGE_CPP_OPTS += -DTHREADED_RTS
+endif
+endif
+
+# If -DDEBUG is in effect, adjust package conf accordingly..
+ifneq "$(strip $(filter -optc-DDEBUG,$(GhcRtsHcOpts)))" ""
+PACKAGE_CPP_OPTS += -DDEBUG
+endif
+
+ifeq "$(HaveLibMingwEx)" "YES"
+PACKAGE_CPP_OPTS += -DHAVE_LIBMINGWEX
+endif
+
+ifeq "$(DotnetSupport)" "YES"
+
+#
+# Would like to just use SUBDIRS here, but need to
+# descend into dotnet/ earlier than that.
+#
+all ::
+ $(MAKE) -C dotnet all
+
+# But use SUBDIRS for other recursive targets.
+SUBDIRS += dotnet