On 2020-06-29, Vagrant Cascadian wrote: > On 2020-06-29, Timo Röhling wrote: >>>> By default, CMake adds an RPATH entry to ELF binaries and deletes it >>>> again at install time. However, due to the limitations of some >>>> platforms, CMake will actually zero out the RPATH entry in the binary, >>>> leaking the original path length and thus making the build not >>>> reproducible (see the attached diffoscope output for an example). >>>> >>>> CMAKE_SKIP_RPATH disables the RPATH machinery and fixes the issue, and >>>> since most package won't ever ship with an RPATH entry anyway, I propose >>>> adding -DCMAKE_SKIP_RPATH=ON to the default build options. >>> Thanks for the suggestion. > > Thanks for identifying the issue! > > >>> Has this proposal been tested on an archive-wide rebuild test to see how >>> much breaks with this option set? >> I don't know, but I don't think so. I'm not directly involved with the >> Reproducible Builds Team, I just pinged them on IRC after I filed this >> bug. Cc'ing them now. > > There is currently only one package tagged with: > > > https://tests.reproducible-builds.org/debian/issues/unstable/cmake_rpath_contains_build_path_issue.html
Also worth mentioning the upstream issue: https://gitlab.kitware.com/cmake/cmake/-/issues/18413 live well, vagrant
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