Re: Autoconf tests, libtool symlist files, undefined behavior, and LTO

2010-09-23 Thread Ralf Wildenhues
Hello t7, * t66...@gmail.com wrote on Thu, Sep 23, 2010 at 03:01:31AM CEST: > I don't know if my problem suites this description. No, it doesn't. > Currently installed libtool on this system is, > ltmain.sh (GNU libtool) 2.2.6b > > I recently tested the LTO feature of GCC (targeting windows

Re: Autoconf tests, libtool symlist files, undefined behavior, and LTO

2010-09-22 Thread t66...@gmail.com
Hello all, I don't know if my problem suites this description. On 31/03/2010 6:52 AM, Ralf Wildenhues wrote: Hello gcc and libtool lists, Summary: both Autoconf-generated configure tests as well as some Libtool construct invoke undefined behavior. Question is how to deal with it, and whether GC

Re: Autoconf tests, libtool symlist files, undefined behavior, and LTO

2010-04-01 Thread Richard Guenther
On Wed, Mar 31, 2010 at 8:33 PM, Ralf Wildenhues wrote: > * Richard Guenther wrote on Wed, Mar 31, 2010 at 11:02:39AM CEST: >> On Tue, Mar 30, 2010 at 8:52 PM, Ralf Wildenhues wrote: >> > 1) Autoconf-generated configure tests often fake the prototype of some >> > function; e.g., AC_CHECK_FUNC([fun

Re: Autoconf tests, libtool symlist files, undefined behavior, and LTO

2010-03-31 Thread Ralf Wildenhues
* Richard Guenther wrote on Wed, Mar 31, 2010 at 11:02:39AM CEST: > On Tue, Mar 30, 2010 at 8:52 PM, Ralf Wildenhues wrote: > > 1) Autoconf-generated configure tests often fake the prototype of some > > function; e.g., AC_CHECK_FUNC([func]) uses > >  char func(); > > > > and tries to link that.  Us

Re: Autoconf tests, libtool symlist files, undefined behavior, and LTO

2010-03-31 Thread Richard Guenther
On Tue, Mar 30, 2010 at 8:52 PM, Ralf Wildenhues wrote: > Hello gcc and libtool lists, > > Summary: both Autoconf-generated configure tests as well as some Libtool > construct invoke undefined behavior.  Question is how to deal with it, > and whether GCC, as QoI, may want to define behavior in the