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Re: PATH_SEPARATOR test and djgpp
From: |
Stepan Kasal |
Subject: |
Re: PATH_SEPARATOR test and djgpp |
Date: |
Wed, 19 Jan 2005 18:42:54 +0100 |
User-agent: |
Mutt/1.4.1i |
Hi,
On Tue, Jan 18, 2005 at 05:52:40PM -0500, Karl Berry wrote:
> Also an issue about test -x. Are there still current systems which do
> not support test -x? I'm somewhat dubious. It was an important issue
> 10 years ago, not so sure about today.
the biggest problem with test -x is that it also catches executable
directories.
So if you want to test for an executable file, you have to run test -f
and test -x.
FYI, current autoconf implementation of AS_EXECUTABLE_P is
{ test -f $1 && $as_executable_p $1; }dnl
where as_executable_p is either `test -x' or `:' according to whether
test -x works on the system.
See autoconf/lib/m4sugar/m4sh.m4 for details.
I hope my note is not too much irrelevant here.
Stepan