[Bug 1571684] Re: libisoburn fails to build on powerpc

[Thomas Schmitt]

> what is the motivation to keep it? ;)

Inherited autotools code. I change it only if i see a reason.


> I don't understand your second question.

When i test whether the option is supported by the linker, i do
this by applying it to a non-library binary.
AC_TRY_LINK() creates a tiny C program and links it using $LDFLAGS.
If it fails, vers_libs_test becomes "no" and --version-script= will
not be used.

The question is, whether this test actually has to try linking a 
tiny library.


> why do executables need to be linked with --version-script at all?

Of course they should not. I will adopt your change upstream.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to glibc in Ubuntu.
https://bugs.launchpad.net/bugs/1571684

Title:
  libisoburn fails to build on powerpc

Status in GLibC:
  Unknown
Status in glibc package in Ubuntu:
  New
Status in libisoburn package in Ubuntu:
  Fix Released

Bug description:
  
  (gdb) run
  Starting program: /home/doko/tmp/libisoburn-1.4.2/xorriso/.libs/xorriso -no_rc -version
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/powerpc-linux-gnu/libthread_db.so.1".
  xorriso 1.4.2 : RockRidge filesystem manipulator, libburnia project.

  xorriso 1.4.2
  ISO 9660 Rock Ridge filesystem manipulator and CD/DVD/BD burn program
  Copyright (C) 2015, Thomas Schmitt <scdbackup at gmx.net>, libburnia project.
  xorriso version   :  1.4.2
  Version timestamp :  2015.11.28.140001
  Build timestamp   :  -none-given-
  libisofs   in use :  1.4.2  (min. 1.4.2)
  libjte     in use :  1.0.0  (min. 1.0.0)
  libburn    in use :  1.4.2  (min. 1.4.2)
  libburn OS adapter:  internal GNU/Linux SG_IO adapter sg-linux
  libisoburn in use :  1.4.2  (min. 1.4.2)
  Provided under GNU GPL version 3 or later, due to libreadline license.
  There is NO WARRANTY, to the extent permitted by law.

  Program received signal SIGSEGV, Segmentation fault.
  __GI__IO_wsetb (f=f at entry=0x1feccca0 <_IO_stdout_>, b=b at entry=0x0, eb=eb at entry=0x0, a=a at entry=0) at wgenops.c:105
  105     wgenops.c: No such file or directory.

To manage notifications about this bug go to:
https://bugs.launchpad.net/glibc/+bug/1571684/+subscriptions