On Tue, Nov 26, 2002 at 01:48:03PM +0100, Abigail wrote:
> PERLPREFIX=${PREFIX:-/usr}
> SITEPREFIX=${PREFIX:-/top}
>
>
> I've used that long before I heard about bash.
> It's also part of the POSIX 1003.1-2001 standard.
Perl make understands it, but I can't get that to work in GNU make. POSIX
or not, that kills it. :(
GNU make claims to conform to "section 6.2 of IEEE Standard 1003.2-1992
(POSIX.2)", not 2001. Is it in the 1992 standard? Not that it'll make much
difference, but at least we can glare disapprovingly at the GNU folks.
$ cat Makefile
PREFIX=foo
SITEPREFIX=${PREFIX:-/usr}
prefixes:
@echo PREFIX = $(PREFIX)
@echo SITEPREFIX = $(SITEPREFIX)
$ pmake prefixes
Reading /usr/local/share/perl/5.6.1/Make.pm
Reading /home/schwern/tmp/Makefile
PREFIX = foo
SITEPREFIX = /usr
$ make -v
GNU Make version 3.79.1, by Richard Stallman and Roland McGrath.
Built for powerpc-unknown-linux-gnu
<snip>
$ make prefixes
PREFIX = foo
SITEPREFIX =
--
Michael G. Schwern <[EMAIL PROTECTED]> http://www.pobox.com/~schwern/
Perl Quality Assurance <[EMAIL PROTECTED]> Kwalitee Is Job One
You see, in this world there's two kinds of people. Those with loaded
guns, and those who dig. Dig.
-- Blondie, "The Good, The Bad And The Ugly"
