Merge 'dev' ~ build (Makefile.win) improvements

Author: rivy

Makefile

@@ -0,0 +1,15 @@
+# Makefile (pass-through)
+# Cross-platform (bash/sh + CMD/PowerShell)
+# GNU make (gmake) compatible; ref: <https://www.gnu.org/software/make/manual>
+
+# ref: https://stackoverflow.com/a/14061796/43774
+
+OSID := $(or $(and $(filter .exe,$(patsubst %.exe,.exe,$(subst $() $(),_,${SHELL}))),$(filter win,${OS:Windows_NT=win})),nix)## OSID == [nix,win]
+
+# gather all goals/targets as arguments; creating an empty rule for each word (which avoids multiple calls to sub-make)
+ARGS := $(wordlist 1,$(words $(MAKECMDGOALS)),$(MAKECMDGOALS))
+$(eval $(ARGS):_undefined_;@:)
+
+_default: .DEFAULT
+.DEFAULT:
+	$(if $(filter win,${OSID}),${MAKE} -f Makefile.win ${ARGS}, ./configure && ${MAKE} ${ARGS})