Hi Eric,

On Wed, 20 Jul 2016, Eric Wong wrote:

> Johannes Schindelin <johannes.schinde...@gmx.de> wrote:
> > 
> > On Wed, 20 Jul 2016, Eric Wong wrote:
> > 
> > > diff --git a/config.mak.uname b/config.mak.uname
> > > index a88f139..6c29545 100644
> > > --- a/config.mak.uname
> > > +++ b/config.mak.uname
> > > @@ -202,6 +202,11 @@ ifeq ($(uname_S),FreeBSD)
> > >           NO_UINTMAX_T = YesPlease
> > >           NO_STRTOUMAX = YesPlease
> > >   endif
> > > + R_MAJOR := $(shell expr "$(uname_R)" : '\([0-9]*\)\.')
> > > +
> > > + ifeq ($(shell test "$(R_MAJOR)" -ge 5 && echo 1),1)
> > > +         PERL_PATH = /usr/local/bin/perl
> > > + endif
> > 
> > In keeping with other uname_R usage, should this not read
> > 
> >     # Since FreeBSD 5.0, Perl is part of the core
> >     ifneq ($(shell expr "$(uname_R)" : '[1-4]\.'),2)
> >             PERL_PATH = /usr/local/bin/perl
> >     endif
> > 
> > instead?
> 
> That's fine; however I don't use `expr` often, so it required
> a little more time to realize the '2' means 2 characters were
> matched.

I never use `expr`, so I had to go and see the surrounding code to
determine what the code style is.

> Also, my use of a numeric comparison may be more future-proof
> in case FreeBSD decides to have /usr/bin/perl again.

That is a very theoretical concern ;-)

Ciao,
Dscho
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