Makefile: Profile for .m4 files

diff --git a/Makefile b/Makefile
index 6bff3bf02ec9a7a0ebca32c907ab97326bcc8c11..7e8704a7430204567e57e086f00b137fcbdab632 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,7 @@
 
 HRR=/home/reprap
 SLIC3R=$(HRR)/Slic3r/bin/slic3r
+M4=m4
 SKEINFORGE=python $(HRR)/reprappro-software.git/skeinforge/skeinforge_application/skeinforge_utilities/skeinforge_craft.py
 
 CWD := $(shell pwd)
@@ -168,6 +169,9 @@ lemon-stand.stl: lemon-stand.scad
 %:             %.pl
                ./$< >$@.tmp && mv -f $@.tmp $@
 
+%:             %.m4
+               $(M4) -P >$@.tmp $< && mv -f $@.tmp $@
+
 .PRECIOUS: %.auto.scad
 %.auto.scad: $(PLAY)/toplevel-make Makefile $(PLAY)/toplevel-find
                @echo ' write $@'