On Sat, 16 Mar 2013 11:45:15 +0100, Corinna Vinschen wrote: > > Also, in libstdc++-v3/crossconfig.m4: > > > > > + *-cygwin*) > > > + GLIBCXX_CHECK_COMPILER_FEATURES > > > + GLIBCXX_CHECK_LINKER_FEATURES > > > + GLIBCXX_CHECK_MATH_SUPPORT > > > + GLIBCXX_CHECK_STDLIB_SUPPORT > > > + ;; > > > > I think cygwin should be added to the preceding linux|gnu|k*bsd-gnu > > case, as we also have /dev/random, pthreads, and iconv. > > Yeah, this sounds like the right thing to do. Thanks for the reminder. > I can build a new linux toolchain next week, and I suppose you did > build your native gcc toolchain with these changes already?
I also discovered two more gcc macros which were missing updates for x86_64-cygwin. I have added those patches, and incorporated your x86_64 patches into mine, into a 4.8 branch of my gcc port: http://cygwin-ports.git.sourceforge.net/git/gitweb.cgi?p=cygwin-ports/gcc;a=shortlog;h=refs/heads/4.8 I am building native and 32-to-64 compilers with this patchset now. > > BTW, the good news is that I was able to build cygwin-64bit-branch and > > gcc (3-stage bootstrap with C/C++) natively on x86_64, albeit with > > -j1, so we're officially at the point of self-hosting. Hopefully your > > latest patches will fix parallel make, but that will have to wait until > > next week. > > Yes, it does, but the price is too high. It's still a really puzzeling > problem and the patch, even though it appeared to fix parallel makes, > is apparently only covering the real, still undiscovered problem. > > The patch only moved the place in the code at which the pseudo relocator > is called in the child after fork. In the old location, everything > appears to work fine, except for those weird, random crashes in parallel > makes. In the new location, the parallel makes work fine, but then > autoreconf hangs in bash. So I noticed; for now, I've reverted to -5 and MAKEOPTS=-j1. > This is really, really frustrating. I hope we can fix this next week, > but right now I need a weekend off to get my head clear. Well, with the sourceware upgrade, we've got a few days before we can proceed much further either way. Yaakov
