make: add a target for building pyoxidizer tests on macOS

The resources seem to be embedded inside the binary, but for some reasons they
aren't read there.  And since they are embedded, they aren't staged by the build
in the `lib` directory like on Windows.  So copy them from the repo.  We can
figure out what's going wrong later.

Makefile

@@ -260,10 +260,9 b' pyoxidizer:'
 	$(PYOXIDIZER) build --path ./rust/hgcli --release
 
 
-PYOX_DIR=build/pyoxidizer/x86_64-pc-windows-msvc/release/app
-
 # a temporary target to setup all we need for run-tests.py --pyoxidizer
 # (should go away as the run-tests implementation improves
+pyoxidizer-windows-tests: PYOX_DIR=build/pyoxidizer/x86_64-pc-windows-msvc/release/app
 pyoxidizer-windows-tests: pyoxidizer
 	rm -rf $(PYOX_DIR)/templates
 	cp -ar $(PYOX_DIR)/lib/mercurial/templates $(PYOX_DIR)/templates
@@ -277,9 +276,25 b' pyoxidizer-windows-tests: pyoxidizer'
 	cp -ar doc $(PYOX_DIR)/doc
 
 
+# a temporary target to setup all we need for run-tests.py --pyoxidizer
+# (should go away as the run-tests implementation improves
+pyoxidizer-macos-tests: PYOX_DIR=build/pyoxidizer/x86_64-apple-darwin/release/app
+pyoxidizer-macos-tests: pyoxidizer
+	rm -rf $(PYOX_DIR)/templates
+	cp -a mercurial/templates $(PYOX_DIR)/templates
+	rm -rf $(PYOX_DIR)/helptext
+	cp -a mercurial/helptext $(PYOX_DIR)/helptext
+	rm -rf $(PYOX_DIR)/defaultrc
+	cp -a mercurial/defaultrc $(PYOX_DIR)/defaultrc
+	rm -rf $(PYOX_DIR)/contrib
+	cp -a contrib $(PYOX_DIR)/contrib
+	rm -rf $(PYOX_DIR)/doc
+	cp -a doc $(PYOX_DIR)/doc
+
+
 .PHONY: help all local build doc cleanbutpackages clean install install-bin \
 	install-doc install-home install-home-bin install-home-doc \
 	dist dist-notests check tests rust-tests check-code format-c \
-	update-pot pyoxidizer pyoxidizer-windows-tests \
+	update-pot pyoxidizer pyoxidizer-windows-tests pyoxidizer-macos-tests \
 	$(packaging_targets) \
 	osx