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Compiling GnuPG X: Libraries I

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fmg Monday March 24, 2025

Situation

Last time we compiled GnuPG in a different and more portable way. However, the library path problem isn't resolved completely. Let's see which libraries are used by the compiled binaries (some irrelevant hex numbers are removed from the output):

Classic Compiled - Wrong Way
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$ ldd /tmp/canary/install/bin/gpg
        linux-vdso.so.1 (...)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (...)
        libgcrypt.so.20 => /usr/lib/x86_64-linux-gnu/libgcrypt.so.20 (...)
        libassuan.so.9 => not found
        libnpth.so.0 => /usr/lib/x86_64-linux-gnu/libnpth.so.0 (...)
        libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (...)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (...)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (...)
        /lib64/ld-linux-x86-64.so.2 (...)

Oups...

Classic Compiled LD_LIBRARY_PATH
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$ LD_LIBRARY_PATH="/tmp/canary/install/lib" ldd /tmp/canary/install/bin/gpg
        linux-vdso.so.1 (...)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (...)
        libgcrypt.so.20 => /tmp/canary/install/lib/libgcrypt.so.20 (...)
        libassuan.so.9 => /tmp/canary/install/lib/libassuan.so.9 (...)
        libnpth.so.0 => /tmp/canary/install/lib/libnpth.so.0 (...)
        libgpg-error.so.0 => /tmp/canary/install/lib/libgpg-error.so.0 (...)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (...)
        /lib64/ld-linux-x86-64.so.2 (...)

Good...

Native Compiled
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$ ldd /tmp/canary/native/bin/gpg
        linux-vdso.so.1 (...)
        libz.so.1 => /tmp/canary/native/bin/../lib/libz.so.1 (...)
        libgcrypt.so.20 => /tmp/canary/native/bin/../lib/libgcrypt.so.20 (...)
        libassuan.so.9 => /tmp/canary/native/bin/../lib/libassuan.so.9 (...)
        libnpth.so.0 => /tmp/canary/native/bin/../lib/libnpth.so.0 (...)
        libgpg-error.so.0 => /tmp/canary/native/bin/../lib/libgpg-error.so.0 (...)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (...)
        /lib64/ld-linux-x86-64.so.2 (...)

Even better...

Remarks

As we can see, the libraries are found as intended. This is just a snapshot of the work done so far. I'll come back to this and keep it this time short.

To be continued...