> 
> Ok, in this case, I will update my office mac mini to 10.15.
> 
> K.O.


Hi Konstantin, 

Any luck with Midas in OS 10.15? 
I have downgraded to Xcode 10.2.1 as suggested in the post linked in my first post, without any luck, I keep getting the same pthead.h error. 
MY gcc uses the 10.15 sdk despite having v 10.2.1 for Xcode and command line tools 

Darrens-Mac-mini:~ betacage$ gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-
dir=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/c++/4.2.1
Apple LLVM version 10.0.1 (clang-1001.0.46.4)
Target: x86_64-apple-darwin19.3.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin


and that is where I suspect the problem is. Will keep investigating next week. Thanks for your help.

Berta