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. 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; \ -- 2.36.1