[musl] Search path for shared libs

[Kai Peter <kp@lists.qware.org>]

Hi,

I did run in an issue with the search path of shared objects. I'm on a 
real custom system, so the pathes below are correct. There is no glibc 
at all, the gcc was modified to build with the loader in /qlnx/lib. curl 
was build with shared openssl libs as a dependency for git. Then I issue

$ ldd /misc/bin/curl
         /qlnx/lib/ld-musl-x86_64.so.1 (0x7f1e1df97000)
         libcurl.so.4 => /misc/lib/libcurl.so.4 (0x7f1e1df0f000)
         libssl.so.1.1 => /libs/lib/libssl.so.1.1 (0x7f1e1de79000)
         libcrypto.so.1.1 => /libs/lib/libcrypto.so.1.1 (0x7f1e1dbb0000)
         libz.so.1 => /qlnx/lib/libz.so.1 (0x7f1e1db93000)
         libc.so => /qlnx/lib/ld-musl-x86_64.so.1 (0x7f1e1df97000)
         libzstd.so.1 => /qlnx/lib/libzstd.so.1 (0x7f1e1da81000)

All fine, pathes are correct and working. Then:

$ ldd /misc/lib/libcurl.so.4 2>&1 | grep -v reloc
         ldd (0x7f122b691000)
Error loading shared library libssl.so.1.1: No such file or directory 
(needed by /misc/lib/libcurl.so.4)
Error loading shared library libcrypto.so.1.1: No such file or directory 
(needed by /misc/lib/libcurl.so.4)
         libzstd.so.1 => /qlnx/lib/libzstd.so.1 (0x7f122b4f7000)
         libz.so.1 => /qlnx/lib/libz.so.1 (0x7f122b4da000)
         libc.so => ldd (0x7f122b691000)

As a workaround I can create symlinks of the missing ssl libs in 
/qlnx/lib. The ld-musl-x86_64.path contains all pathes and it is read. 
So the question is: Why does libcurl.so.4 not find libssl/libcrypto? Any 
insight?

Kai