Joe Buck <[EMAIL PROTECTED]> writes: > On Tue, Apr 19, 2005 at 02:23:26PM +0200, Peter FELECAN wrote: > > > > Currently the libgcc_s.so library has the same version in 3.4 and 4.0, > > > > i.e libgcc_s.so.1 (SONAME = libgcc_s.so.1). > > > > > > > > Is this as expected? > > Jakub Jelinek <[EMAIL PROTECTED]> writes: > > > Yes. > > Peter: > > > > Are the 2 libraries compatible? Interchangeable? Looking in the map > > > > file, I don't think so. > > Jakub: > > > There is backwards compatibility. So you want the latest libgcc_s.so.1 > > > from the compilers used to build your applications. > > Peter: > > I should understand that, as usual, there is no "backward" > > compatibility. My worry being the case when somebody, having installed > > 3.4 and 4.0, in this order, updates the previous compiler, 3.4, and > > unknowingly replaces the latest library. For this, I think that > > additional instrumentations are required by the corresponding > > packages. Consequently, it is the role of the packager to assure an > > hermetic separation. > > No, I think you misunderstood Jakub. If 4.0 is installed second, it will > update the libgcc_s.so.1, and all the apps compiled with either compiler > will continue to work. You want to avoid the reverse situation, where 4.0 > is installed first and then 3.4.
Joe, I understood Jakub. My fingers writing "backward" instead of "forward" are wrong :-) Anyway, thank you for the comment which confirms my understanding. -- Peter FELECAN mailto:[EMAIL PROTECTED]
