rpath and LD_LIBRARY_PATH are only relevant for the runtime linking/resolution, right? My concern is that at compilation time the wrong version of OpenSSL is being picked up. Is there a way to see the full library/header path the compiler is using so that I can verify the path I specified with --with-headers and --with-libraries is taking precedence over the system paths?
Joshua Poehls <joshua@poehls.me> writes: > I'm compiling PG 12.2 (on CentOS 7) and need to ensure that it uses a > specific version of OpenSSL (1.1.1h). I've added what I think are the > appropriate `./configure` flags (see below) and compilation is successful > but when I run `ldd -d initdb` or `readelf` I can see that it linked to a > different version of libcrypto/libssl.
> My theory is that even though I'm adding --with-libraries/--with-includes, > the build script is finding and using the version of OpenSSL in /lib64/ > because it has higher precedence somewhere.
Linux is generally pretty unfriendly to putting shlibs in nonstandard places. If you want to do that, you need to add an "rpath" spec to the calling programs, or set LD_LIBRARY_PATH, or fool around with the dynamic linker's configuration files. "man ld.so" will get you started.
