Hi, On 2021-10-15 11:50:30 -0700, Andres Freund wrote: > It seems to work quite well to change our own references to libpq in binaries > / shared libs to be relative, but to leave the install_name of the libraries > intact. In combination with adding an rpath of @loader_path/../lib/ to > binaries and @loader_path/ to shlibs, the install will re relocatable. > > It doesn't work as well to actually have a non-absolute install_name for > libraries (e.g. @rpath/libpq.dylib), because then external code linking to > libpq needs to add an rpath to the installation to make it work. > > The advantage of this approach over Peter's is that it's not temp-install > specific - due to the relative paths, it makes installations relocatable > without relying [DY]LD_LIBRARY_PATH. > > On other unixoid systems this whole mess is simpler, because we can just add > $ORIGIN to shared libraries and $ORIGIN/../lib/ to binaries. We don't need to > leave some absolute path in the libraries themself intact.
I implemented this for the meson build, and it seems to work nicely. The macos part was harder than I hoped due to the install_name stuff, which meson doesn't solve. https://github.com/anarazel/postgres/commit/a35379c28989469cc4b701a8d7a22422e6302e09 After that the build directory is relocatale. I don't immediately see a way to do this reasonably for the autoconf build. We'd need a list of our own shared libraries from somewhere, and then replace the references after building the objects? Greetings, Andres Freund
