Bug 284924 – mail-filter/libmilter-1.0.1 causes app-antivirus/clamav-0.95.2 to fail on LDFLAGS="-Wl,--as-needed"

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Nathan Phillip Brink (binki) (RETIRED) 2009-09-14 13:12:22 UTC]

app-antivirus/clamav-0.95.2 fails when LDFLAGS has -Wl,--as-needed in it and when libmilter is available as a shared object.

[Comment 1 Nathan Phillip Brink (binki) (RETIRED) 2009-09-14 13:13:47 UTC]

Created attachment 204041 [details]
/tmp/clamav-0.95.2-build.log

[Comment 2 Nathan Phillip Brink (binki) (RETIRED) 2009-09-14 13:14:09 UTC]

Created attachment 204043 [details]
/tmp/clamav-0.95.2-config.log

[Comment 3 Nathan Phillip Brink (binki) (RETIRED) 2009-09-14 13:29:11 UTC]

Actually... this may be a problem with mail-filter/libmilter-1.0.1 not properly linking libmilter.so:

$ ldd /usr/lib64/libmilter.so
        linux-vdso.so.1 =>  (0x00007fff7cba9000)
        libc.so.6 => /lib64/libc.so.6 (0x00007ff3bbc12000)
        /lib64/ld-linux-x86-64.so.2 (0x00007ff3bc1a6000)

$ nm -D /usr/lib64/libmilter.so |grep pthread
                 U pthread_create
                 U pthread_detach
                 U pthread_mutex_destroy
                 U pthread_mutex_init
                 U pthread_mutex_lock
                 U pthread_mutex_unlock
                 U pthread_self
                 U pthread_sigmask


Sorry, I don't know exactly what to make of all of this info, but using --as-needed with clamav does cause it to fail to link while avoiding --as-needed doesn't. In fact, this compilation fragment from mail-filter/libmilter-1.0.1 suggests it silently fails to link libmilter.so when compiling:

x86_64-pc-linux-gnu-gcc -Wl,--as-needed -Wl,-O1 -Wl,-t -Wl,--enable-new-dtags -Wl,--hash-style=both -lpthread -shared -o libmilter.so -Wl,-soname,libmilter.so.1.0.1 main
.o engine.o listener.o worker.o handler.o comm.o smfi.o signal.o sm_gethost.o monitor.o errstring.o strl.o     -lc

[Comment 4 Nathan Phillip Brink (binki) (RETIRED) 2009-09-14 13:31:41 UTC]

Created attachment 204054 [details]
/tmp/libmilter-1.0.1-build.log

[Comment 5 Olivier Crete (RETIRED) 2009-09-19 21:03:22 UTC]

as-needed is not officially supported. Please provide a fix upstreamn and re-open the bug

[Comment 6 Alin Năstac (RETIRED) 2009-09-20 08:31:49 UTC]

You're right, libmilter misses -lpthread when linked with -Wl,--as-needed.

Fixed in libmilter-1.0.1-r1, thanks!

[Comment 7 Alin Năstac (RETIRED) 2009-09-20 09:27:10 UTC]

Also fixed in mail-mta/sendmail-8.14.3-r2.

[Comment 8 Nathan Phillip Brink (binki) (RETIRED) 2009-09-20 16:26:40 UTC]

(In reply to comment #6)
> You're right, libmilter misses -lpthread when linked with -Wl,--as-needed.
> 
> Fixed in libmilter-1.0.1-r1, thanks!
> 

Thank you very much for your support :-)