On 01/07/2015 02:53 PM, Cyd Haselton wrote: > On Wed, Jan 7, 2015 at 7:41 AM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: >> On 7 January 2015 at 13:37, Andrew Haley wrote: >>> I think it's now becoming clear what is happening. Something in ld is >>> calling dlopen, and fakechroot prints the error. But it's not clear to >>> me which dlopen does not work in fakechroot. >>> >>> My guess is that the problem is due to link-time optimization. gcc is >>> trying to run -plugin /bld/gcc/builddir-4.9/./gcc/liblto_plugin.so. 4.8 >>> does not do this. >> >> Ahhhhhhh. Sneaky. >> >>> Maybe fakechroot can be persuaded to produce a decent error message with >>> some more information. >>> >>> It may be possible to disable LTO. >> >> --disable-lto > > According to libgcc/configure this is an invalid option. Any other > way to disable it? > -fno-lto It's in the manual.
