try; add try implementation + details, update to latest main branch

try/make.emscripten/Makefile

@@ -0,0 +1,59 @@
+# Copied from projects/make and modified for emscripten
+# To run, make sure emsdk is in your path (our sourced via their scripts)
+# run `emmake make`
+
+ifndef config
+  config=release_32bit
+endif
+
+ifndef verbose
+  SILENT = @
+endif
+
+ifeq ($(config),debug_32bit)
+  wren_config = debug_32bit
+  wren_try_config = debug_32bit
+
+else ifeq ($(config),release_32bit)
+  wren_config = release_32bit
+  wren_try_config = release_32bit
+
+else
+  $(error "invalid configuration $(config)")
+endif
+
+PROJECTS := wren wren_try
+
+.PHONY: all clean help $(PROJECTS) 
+
+all: $(PROJECTS)
+
+wren:
+ifneq (,$(wren_config))
+	@echo "==== Building wren ($(wren_config)) ===="
+	@${MAKE} --no-print-directory -C . -f wren.make config=$(wren_config)
+endif
+
+wren_try: wren
+ifneq (,$(wren_try_config))
+	@echo "==== Building wren_try ($(wren_try_config)) ===="
+	@${MAKE} --no-print-directory -C . -f wren_try.make config=$(wren_try_config)
+endif
+
+clean:
+	@${MAKE} --no-print-directory -C . -f wren.make clean
+	@${MAKE} --no-print-directory -C . -f wren_try.make clean
+
+help:
+	@echo "Usage: make [config=name] [target]"
+	@echo ""
+	@echo "CONFIGURATIONS:"
+	@echo "  release_32bit"
+	@echo "  debug_32bit"
+	@echo ""
+	@echo "TARGETS:"
+	@echo "   all (default)"
+	@echo "   clean"
+	@echo "   wren"
+	@echo "   wren_try"
+	@echo ""