RPATH sanity check fails for OCaml

[boegel]

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More relevant for EasyBuild 5.0, since RPATH is enabled by default there...

== FAILED: Installation ended unsuccessfully: Sanity check failed: No '(RPATH)' found in 'readelf -d' output for
/software/OCaml/4.14.0-GCC-11.3.0/bin/opam-installer:   linux-vdso.so.1 (0x00007ffdb67bd000)
        libm.so.6 => /lib64/libm.so.6 (0x000014bb30a2c000)
        libdl.so.2 => /lib64/libdl.so.2 (0x000014bb30828000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x000014bb30608000)
        libc.so.6 => /lib64/libc.so.6 (0x000014bb30243000)
        /lib64/ld-linux-x86-64.so.2 (0x000014bb30dae000)

No '(RPATH)' found in 'readelf -d' output for /software/OCaml/4.14.0-GCC-11.3.0/bin/opam:
/software/OCaml/4.14.0-GCC-11.3.0/bin/opam: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by
/software/OCaml/4.14.0-GCC-11.3.0/bin/opam)
        linux-vdso.so.1 (0x00007ffeadaf4000)
        libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00001483b4196000)
        libm.so.6 => /lib64/libm.so.6 (0x00001483b3e14000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00001483b3c10000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00001483b39f8000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00001483b37d8000)
        libc.so.6 => /lib64/libc.so.6 (0x00001483b3413000)
        /lib64/ld-linux-x86-64.so.2 (0x00001483b452b000)
 (took 14 mins 51 secs)