libvmime: ERROR: GNU TLS development package is not installed

[darylew@…]

I've been reading up on libvmime. I saw the requirements and installed them with Mac Ports, then I checked and saw that libvmime itself was in MacPorts. It didn't work. Doing a clean and re-install didn't work. Nor did trying with LLVM/GCC-4.2 work. Looking at the last parts of the log, it seems that there's a problem with libvmime think I didn't have GNU TLS, but I installed it before trying libvmime!

[darylew@…]

Log file created when libvmime build failed.

[ryandesign (Ryan Carsten Schmidt)]

This is because:

• libvmime's scons script gets a list of all installed pkg-config files, and fails to find the libraries it's looking for if any installed pkg-config file has a problem. I have already ​reported this problem to the developers of libvmime, and they're not doing anything about it because they've already replaced the scons build system with something else but haven't released a new version of libvmime with these changes.
• cyrus-sasl2's pkg-config file has a bug: #41300.

The workaround is to deactivate the cyrus-sasl2 port for the duration of the libvmime build.

sudo port clean libvmime
sudo port -f deactivate cyrus-sasl2
sudo port install libvmime
sudo port activate cyrus-sasl2

Last I checked that won't work either, however, because of #41292, which I have also already ​reported to the developers, and which they have not yet responded to. Perhaps you could add a note to that upstream issue and encourage the developers to release a new version that fixes the problem.