Hi Nach, 2016-11-03 12:06 GMT+01:00 Nach <joecool2...@yahoo.com>: > Package: gcc-6 > Version: 6.2.0-10 > Severity: important > > Dear Maintainer, > > GCC 6 in Debian changes linking policy from what was the default in all > previous GCC versions. > Now when attemping to link an executable which makes use of some static > libraries, GCC fails to link. > Failing includes error messages linking the static libraries like the > following: > > requires dynamic R_X86_64_PC32 reloc against 'memset' which may overflow at > runtime; recompile with -fPIC > requires dynamic R_X86_64_32 reloc which may overflow at runtime; recompile > with -fPIC > requires unsupported dynamic reloc 11; recompile with -fPIC > > Recompiling the static libraries with -fPIC as suggested isn't always > feasable or even possible. > Passing -no-pie to the link command is the actual correct solution.
Static libraries shipped by Debian are being recompiled with PIE which allows linking them to PIE binaries. > > Since all previous versions of GCC in Debian do not require the addition of > -no-pie for linking a static library into an executable, this change is > unexpected and at least to me, undesired. > The error message also fails to indicate the best way to achieve simple > linking as was possible previously. > The -no-pie option is also brand new in GCC 5, meaning that build scripts > that add it will break compiling for those using earlier versions (like those > using GCC from Debian Stable). Please use -fno-pie. It works with older compilers, too. Cheers, Balint
