* help: generate help texts from text file / awk

mu/Makefile.am

@@ -49,6 +49,16 @@ mu_SOURCES=				\
 	mu-cmd.c			\
 	mu-cmd.h
 
+BUILT_SOURCES=				\
+	mu-help-strings.h
+
+mu-help-strings.h: mu-help-strings.txt mu-help-strings.awk
+	$(AWK) -f mu-help-strings.awk < $< > $@
+
 mu_LDADD=				\
 	${top_builddir}/lib/libmu.la    \
 	$(GLIB_LIBS)
+
+EXTRA_DIST=				\
+	mu-help-strings.awk		\
+	mu-help-strings.txt