Stan files won't compile since making changes related to Catalina

[torkar]

Gary, YMMV but this works great for me using Catalina, R 3.6.2, and the installer by @coatless:

Dealing with Catalina II

@Amos, I used @coatless installation script and then changed .R/Makevars to: CFLAGS=-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk CCFLAGS=-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk CXXFLAGS=-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk CPPFLAGS=-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include SHLIB_CXXLDFLAGS+=-Wl,-rpath,/Library/Frameworks/R.framework/Resources/lib /Library/Frameworks/R.framework/Resources…

If you stumble into problems make sure to recompile, e.g., rstanarm and other packages from source:

remove.packages("rstanarm")
install.packages("rstanarm", type = "source")