[R-SIG-Mac] catalina humbug

[Simon Urbanek]

Roger,

the error points to an old local clang - did you remove (or move aside) that one? Check your /usr/local - you seem to have some old stuff there that is breaking. That would solve the original issue. You seem to have done a lot after that error, but didn't tell us what happened then… you can't have the same error if you removed it ;) 

Cheers,
Simon




> On Oct 14, 2020, at 10:28 PM, Koenker, Roger W <rkoenker using illinois.edu> wrote:
> 
> I’ve recently “upgraded” to catalina, and compilation of my quantreg package failed with:
> 
> In file included from mcmb.c:11:
> /usr/local/clang7/include/c++/v1/stdio.h:108:15: fatal error: 'stdio.h' file not found
> #include_next <stdio.h>
> 
> So I’ve tried the following:
> 
> 	1.  Upgraded R to 4.0.3
> 	2.  Upgraded the fortran compiler to 8.2.0 as suggested.
> 	3.  Attempted to reinstall command line tools with Xcode-select —install.  This fails with
> 		a popup that says:
> 
>  		Can’t install the software because it is not currently available from the Software Update server.
> 	4.  Tried again to reinstall Command line tools 12.2 beta 3 from https://developer.apple.com/download/more/
> 		which successfully installed, but my stdio.h error persisted.
> 	5.  Following thread: http://r-sig-mac.29524.n8.nabble.com/R-SIG-Mac-fatal-error-stdio-h-file-not-found-td889.html
> 		I  looked at:
> 
> 		yzzy: which clang /usr/bin/clang 
> 		yzzy: xcode-select -p /Applications/Xcode.app/Contents/Developer 
> 		yzzy: xcrun --show-sdk-path /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk
> 
> 		but that didn’t speak to me so further googling led me to:
> 		https://stackoverflow.com/questions/54557659/r-cant-update-packages-clang-cant-find-head-files
> 		so lurking in: /Library/Developer/CommandLineTools/usr/include/c++/v1
> 		is stdio.h, but I’m feeling a bit queasy  at this point and would appreciate some  expert advice.
> 
> Roger
> 
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