Re: [PATCH v2 4/7] fortran: use grep instead of fgrep

[Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>]

On Mon, 27 Jun 2022 14:10:36 +0800
Xi Ruoyao <xry111@xry111.site> wrote:

> fgrep has been deprecated in favor of grep -F for a long time, and the
> next grep release (3.8 or 4.0) will print a warning of fgrep is used.
> Stop using fgrep so we won't see the warning.
> 
> We can't hard code grep -F here or it may break build on hosts w/o GNU
> grep.  autoconf documentation contains a warning about this issue and
> suggest to use AC_PROG_FGREP and $FGREP, but these are too overkill in
> the specific case: there is no way "debian" could be interpreted as an
> non-trivial regex, so we can use a plain grep here.

LGTM but i cannot approve it. I'd say this one is trivial and obvious
so you could sneak it in under the "obvious" rule..
Thanks for the patch!

> 
> gcc/fortran/ChangeLog:
> 
> 	* Make-lang.in: Use grep instead of fgrep.
> ---
>  gcc/fortran/Make-lang.in | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/gcc/fortran/Make-lang.in b/gcc/fortran/Make-lang.in
> index 1cb47cb1a52..6eb597d0ca0 100644
> --- a/gcc/fortran/Make-lang.in
> +++ b/gcc/fortran/Make-lang.in
> @@ -278,7 +278,7 @@ $(DESTDIR)$(man1dir)/$(GFORTRAN_INSTALL_NAME)$(man1ext): doc/gfortran.1 \
>  	-chmod a-x $@
>  
>  fortran.uninstall:
> -	if $(SHELL) -c 'install-info --version | sed 1q | fgrep -s -v -i debian' >/dev/null 2>&1; then \
> +	if $(SHELL) -c 'install-info --version | sed 1q | grep -s -v -i debian' >/dev/null 2>&1; then \
>  	  echo " install-info --delete --info-dir=$(DESTDIR)$(infodir) $(DESTDIR)$(infodir)/gfortran.info"; \
>  	  install-info --delete --info-dir=$(DESTDIR)$(infodir) $(DESTDIR)$(infodir)/gfortran.info || : ; \
>  	else : ; fi; \