On Thu, 2021-10-28 at 08:51 -0600, Jeff Law wrote: > > On 10/27/2021 2:05 PM, Richard Purdie via Gcc-patches wrote: > > OpenEmbedded/Yocto Project builds libgcc and the other gcc runtime libraries > > separately from the compiler and slightly differently to the standard gcc > > build. > > > > In general this works well but in trying to build them separately we run > > into > > an issue since we're using our gcc, not xgcc and there is no way to tell > > configure > > to use libgcc but not look for libstdc++. > > > > This adds such an option allowing such configurations to work. > > > > 2021-10-26 Richard Purdie <richard.pur...@linuxfoundation.org> > > > > gcc/c-family/ChangeLog: > > > > * c.opt: Add --nostdlib++ option > > > > gcc/cp/ChangeLog: > > > > * g++spec.c (lang_specific_driver): Add --nostdlib++ option > > > > gcc/ChangeLog: > > > > * doc/invoke.texi: Document --nostdlib++ option > > * gcc.c: Add --nostdlib++ option > Couldn't you use -nostdlib then explicitly add -lgcc? > > If that works, that would seem better to me compared to adding an option > to specs processing that is really only useful to one build > system/procedure.
It sounds great in principle but I've never been able to get it to work. With "-nostdinc++ -nostdlib" I miss the startup files so I also tried "-nostdinc++ - nodefaultlibs -lgcc". The latter gets further and I can build libstdc++ but the resulting library doesn't link into applications correctly. Cheers, Richard
