ports/121494: commit references a PR

[dfilter service]

The following reply was made to PR ports/121494; it has been noted by GNATS.

From: dfilter at FreeBSD.ORG (dfilter service)
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: ports/121494: commit references a PR
Date: Sat, 19 Apr 2008 20:51:18 +0000 (UTC)

 bsam        2008-04-19 20:51:13 UTC
 
   FreeBSD ports repository
 
   Modified files:
     emulators/linux_base-fc4 Makefile pkg-install pkg-plist 
   Log:
   1. Add a symlink from /compat/linux/lib/librt.so.1 to
      /compat/linux/usr/lib/librt.so.1. This bug exists only
      at linux_base-fc4 _and_ osrelease=2.4.2.
   2. Bump PORTREVISION.
   
   Note: The symlink is created at pkg-install script since the first
   run of '/compat/linux/sbin/ldconfig -r /compat/linux' seems to remove
   the link.
   
   Tijl Coosemans <tijl at ulyssis.org>:
   -----
   This is not really a bug of linux compat, but is because of the
   following:
   
   1. opening /path/to/somefile under linux compat first tries
      /compat/linux/path/to/somefile then /path/to/somefile.
   2. linux binaries have two search paths for librt.so.1:
      /lib and /usr/lib.
   3. fc4 has a librt.so.1 in /lib but it is rejected under 2.4.2
      emulation.
   4. fc4 does not have a librt.so.1 under /usr/lib so when the runtime
      linker tries this search path it ends up opening FreeBSD
      /usr/lib/librt.so.1 (because of point 1) and fails.
   
   By adding a softlink in /compat/linux/usr/lib to the librt.so.1 in
   /compat/linux/lib, the linker doesn't open the FreeBSD librt.so.1
   anymore. Instead, under 2.4.2, it rejects this lib and then tries an
   internal search path /lib/obsolete/linuxthreads where it finds the
   correct version. Under 2.6.16 the softlink doesn't change anything,
   so imho this is something the fc4 port/package should deal with.
   -----
   
   PR:             121494
   Submitted by:   Jason Bacon <jwbacon at tds.net>
   Convinced by:   Tijl Coosemans <tijl at ulyssis.org>
   Patched by:     bsam (me)
   
   Revision  Changes    Path
   1.28      +1 -1      ports/emulators/linux_base-fc4/Makefile
   1.6       +5 -0      ports/emulators/linux_base-fc4/pkg-install
   1.14      +1 -0      ports/emulators/linux_base-fc4/pkg-plist
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