refcard.dvi build patch

[Andrew Cagney]

> I needed the following patch to build refcard.dvi on my system; bash
> was complaining about the for f in ; do ...; done syntax when
> when $REFEDITS was empty.


Can anyone think of a reason to not set REFEDITS to /dev/null by 
default?  Would either cygwin or djgpp have problems?

	Andrew

PS: Which version of bash?



> 2001-06-21  Colin Walters  <walters@cis.ohio-state.edu>
> 
> * identity.sed: New file.
> 	* Makefile.in (REFEDITS): Use it.
> 	(refcard.dvi): Remove logic for testing for empty REFEDITS; this
> 	is now handled by identity.sed instead.
> 
> --- /dev/null	Wed Dec 31 19:00:00 1969
> +++ identity.sed	Thu Jun 21 15:55:31 2001
> @@ -0,0 +1 @@
> +# This is an empty file used by the Makefile for building refcard.dvi.
> 
> --- Makefile.in.~1.13.~	Mon May 14 12:18:50 2001
> +++ Makefile.in	Thu Jun 21 13:31:02 2001
> @@ -84,8 +84,8 @@
>  # e.g. for A4, Postscript:  REFEDITS = a4rc.sed psrc.sed
>  #      for A4, CM fonts:    REFEDITS = a4rc.sed
>  #      for US, PS fonts:    REFEDITS = psrc.sed
> -#      for default:
> -REFEDITS =
> +#      for default:         REFEDITS = identity.sed
> +REFEDITS = identity.sed
>  
>  # Don Knuth's TeX formatter
>  TEX = tex
> @@ -200,14 +200,10 @@
>  
>  # GDB QUICK REFERENCE (dvi output)
>  refcard.dvi : refcard.tex $(REFEDITS)
> -	if [ -z "$(REFEDITS)" ]; then \
> -		cp $(srcdir)/refcard.tex sedref.tex ; \
> -	else \
> -		echo > tmp.sed ; \
> -		for f in $(REFEDITS) ; do \
> -			cat $(srcdir)/$$f >>tmp.sed ; done ; \
> -		sed -f tmp.sed $(srcdir)/refcard.tex >sedref.tex ; \
> -	fi
> +	echo > tmp.sed ; \
> +	for f in $(REFEDITS) ; do \
> +		cat $(srcdir)/$$f >>tmp.sed ; done ; \
> +	sed -f tmp.sed $(srcdir)/refcard.tex >sedref.tex ; \
>  	$(SET_TEXINPUTS) $(TEX) sedref.tex
>  	mv sedref.dvi refcard.dvi
>  	rm -f sedref.log sedref.tex tmp.sed
> 
> 
>