------- Comment #4 from zadeck at naturalbridge dot com 2009-10-03 23:57 ------- Richard,
the problem is that at least for the linux world there are two elf implementations that while they claim to be compatible are distinctly different on the inside. LTO, for better or worse, needs to use features that are not necessarily part of the "standard" elf, for some definition of standard. unlike gmp and mpfr, where there has always been 1 open source version, elf was reverse engineered for linux from the sun version at least twice, each with its own warts. It has not helped anything that suse and redhat seem to have chosen to distribute different implementations. this led to a fair amount of confusion when mark mitchell and i started working on lto because codesourcery generally runs redhat and naturalbridge runs suse. We were always breaking the code on the others machines. i think that iant "solved" this problem for gold by just writing his own elf library rather than relying on what was installed which is what lto does. Aside from going down that road, we are most likely screwed because lto needs stuff out of the mainstream elf. I hope that this clarifies some of your issues here. kenny -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39316
