Subject: Re: X.pkg.mk and -Wl,-R stuff
To: Harlan Stenn <Harlan.Stenn@pfcs.com>
From: Todd Vierling <firstname.lastname@example.org>
Date: 07/29/2001 17:53:53
On Mon, 23 Jul 2001, Harlan Stenn wrote:
: Apparently, we're starting with netbsd versions of several of the .mk files.
: And I have a question.
: Why does op.pkg.mk have the -Wl,-R stuff in it at all? While it provides
: the location for dynamic libraries, I don't see any corresponding logic to
: handle #include files. Shouldn't the actual source packages handle this?
The -Wl,-R logic is to ensure that all packages get /usr/pkg/lib in their
*dynamic linker* library search path. Without that (and don't say
"ld.so.conf", because pkgsrc does not depend on that mechanism whatsoever),
you'll get runtime library-not-found errors.
: This has become an issue because in addressing portability issues I need to
: "rewrite" this logic. The -R items are gnu-ld specific,
No, -R works on just about any linker that supports rpaths. Only really old
linkers don't -- COFF and friends, platforms without shlibs, and probably
FreeBSD a.out unless they imported NetBSD's rpath additions later on.
(NetBSD's a.out has supported rpaths since NetBSD 1.3.)
: and the -Wl, items are gcc-specific.
Yes, these are, although many compilers will just accept -R and pass it on
appropriately. We use -Wl,-R because it works with all NetBSD versions
(earlier bundled gcc versions didn't pass -R through to the linker on all
: Yes, there may be other compilers/loaders that also accept these flags,
: but I need to implement a portable solution.
...make it an OS-dependent setting? (duh? LDFLAGS are naturally
OS-dependent anyway....) For NetBSD specifically, it should use -Wl,-R.
-- Todd Vierling <email@example.com> * Wasabi NetBSD: Run with it.
-- NetBSD 1.5 now available on CD-ROM -- http://www.wasabisystems.com/