src/Info/Info.cpp:142:17: error: use of undeclared identifier 'isnanf'; did you mean 'isnan'?
if (isnanf(font_size)) {
^~~~~~
isnan
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX11.1.sdk/usr/include/c++/v1/math.h:535:1: note: 'isnan' declared here
isnan(float __lcpp_x) _NOEXCEPT { return __libcpp_isnan(__lcpp_x); }
^