Re: [PATCH/RFC 01/17] Makefile: A variable for options used by xgettext(1) calls

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Ævar Arnfjörð Bjarmason wrote:

> +++ b/Makefile
> @@ -2008,10 +2008,11 @@ cscope:
>  	$(RM) cscope*
>  	$(FIND) . -name '*.[hcS]' -print | xargs cscope -b
>  
> +XGETTEXT_OPTIONS = --add-comments
>  pot:
> -	$(XGETTEXT) --add-comments --keyword=_ --keyword=N_ --output=po/git.pot --language=C $(C_OBJ:o=c) t/t0200/test.c
> -	$(XGETTEXT) --add-comments --join-existing --output=po/git.pot --language=Shell $(SCRIPT_SH) t/t0200/test.sh
> -	$(XGETTEXT) --add-comments --join-existing --keyword=__ --output=po/git.pot --language=Perl $(SCRIPT_PERL) t/t0200/test.perl
> +	$(XGETTEXT) $(XGETTEXT_OPTIONS) --keyword=_ --keyword=N_ --output=po/git.pot --language=C $(C_OBJ:o=c) t/t0200/test.c
> +	$(XGETTEXT) $(XGETTEXT_OPTIONS) --join-existing --output=po/git.pot --language=Shell $(SCRIPT_SH) t/t0200/test.sh
> +	$(XGETTEXT) $(XGETTEXT_OPTIONS) --join-existing --keyword=__ --output=po/git.pot --language=Perl $(SCRIPT_PERL) t/t0200/test.perl

The long lines are a bit scary. :)

Maybe more of it could be pulled out into variables.  As a
side-effect, users could override some settings from the command line.
Maybe something like this?

 LOCALIZED_C = $(C_OBJ:o=c) t/t0200/test.c
 LOCALIZED_SH = $(SCRIPT_SH) t/t0200/test.sh
 LOCALIZED_PERL = $(SCRIPT_PERL) t/t0200/test.perl

 XGETTEXT_OPTIONS = --add-comments
 XGETTEXT_OPTIONS_C = $(XGETTEXT_OPTIONS) -k_ -kN_ -LC
 XGETTEXT_OPTIONS_SH = $(XGETTEXT_OPTIONS) -LShell
 XGETTEXT_OPTIONS_PERL = $(XGETTEXT_OPTIONS) -k__ -LPerl

 po/git.pot:
	rm -f $@+
	$(XGETTEXT) -o$@+ $(XGETTEXT_OPTIONS_C) $(LOCALIZED_C)
	$(XGETTEXT) -j -o$@+ $(XGETTEXT_OPTIONS_SH) $(LOCALIZED_SH)
	$(XGETTEXT) -j -o$@+ $(XGETTEXT_OPTIONS_PERL) $(LOCALIZED_PERL)
	mv $@+ $@
--
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