[Issue 15391] Problems loading libcurl.so and running datetime unittest on NixOS package build

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15391

--- Comment #3 from Thomas Mader <thomas.mader at gmail.com> ---
I was able to hack around the issue by patching the curl.d sourcefile.

      #Ugly hack so the dlopen call has a chance to succeed.
      substituteInPlace src/phobos/std/net/curl.d --replace libcurl.so
${curl}/lib/libcurl.so


That's in the package description for the dmd package on NixOS. That's
necessary because in NixOS every package is stored in isolation to everything
else.
So libcurl on my system resides in
/nix/store/v5a69m1b823zm1yy8yvhrd2zi2w385b1-curl-7.44.0/lib/libcurl.so.

This also makes problems in the unittest of datetime.d. The path to the
zoneinfo is hardcoded so I needed to hack around it in a similar fashion.


      #Ugly hack to fix the hardcoded path to zoneinfo in the source file.
      substituteInPlace src/phobos/std/datetime.d --replace
/usr/share/zoneinfo/ ${tzdata}/share/zoneinfo/

I think it should be possible to specify those paths somehow via the Makefile
to get a clean build.

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