This thread might be worth looking into, if you want to crosscompile for Windows, Linux and Mac - in an Ubuntu docker setup.
(MacOSX10.13.sdk.tar.xz was not that hard to find)
This thread might be worth looking into, if you want to crosscompile for Windows, Linux and Mac - in an Ubuntu docker setup.
(MacOSX10.13.sdk.tar.xz was not that hard to find)