Re: [PATCH] Use ldconfig to generate sys_lib_dlsearch_path_spec

[Gary V. Vaughan]

Hi Orion,

> On Aug 12, 2014, at 6:50 PM, Orion Poplawski <address@hidden> wrote:
> 
> Orion Poplawski <orion <at> cora.nwra.com> writes:
>> After almost 7 years, it would be really nice to get this fixed.  Does this
>> help?
>> 
>> From 9576fe6d88eb2f448b1e87422449bfc7dba42c29 Mon Sep 17 00:00:00 2001
>> From: Olly Betts <olly <at> survex.com>
>> Date: Wed, 5 Mar 2014 10:53:51 -0700
>> Subject: [PATCH] Use ldconfig to generate sys_lib_dlsearch_path_spec.
>> MIME-Version: 1.0
>> Content-Type: text/plain; charset=UTF-8
>> Content-Transfer-Encoding: 8bit
>> 
>> Use ldconfig to generate sys_lib_dlsearch_path_spec so that internal library
>> search paths as well as all /etc/ld.so.conf and /etc/ld.so.conf.d/*.conf
>> entries are present.
>> 
>> http://article.gmane.org/gmane.comp.gnu.libtool.general/12121
> 
> Hmm, this might not help on Fedora after all as ldconfig now only reports
> /lib64 and not /usr/lib64.
> 
> Perhaps time to simply add /usr/lib64 and /lib64 to the list?

Does this work for you?

diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 2bbf01b..fd4dfb4 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -2796,6 +2796,14 @@ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
     lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 
2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < 
/etc/ld.so.conf | $SED -e 's/#.*//;/^[  ]*hwcap[        ]/d;s/[:,      ]/ 
/g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
     sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
   fi
+  # Ideally we could use /sbin/ldconfig to report what directories are
+  # searched, but (aside from not being certain /sbin/ldconfig is
+  # available) Fedora on 64bit does not report /usr/lib64, even though
+  # it is searched at run-time.
+  case $host_cpu in
+    # match at least x86_64, ia64, powerpc64*
+    *64*) sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 
$sys_lib_dlsearch_path_spec" ;;
+  esac
 
   # We used to test for /lib/ld.so.1 and disable shared libraries on
   # powerpc, because MkLinux only supported shared libraries with the

Cheers,
-- 
Gary V. Vaughan (gary AT gnu DOT org)