How to set global Clang flags?-CodePudding

I'm using Clang on MacOS. When I compile C with clang , is there a way to specify -std=c 17 without writing it every time? Is there some sort of a global clang config file?

CodePudding user response：

alias c ="c -O2 -W -Wall -std=c 17"

You can add something like that to your bashrc or whatever shell you use.

Another thing that should work on MacOS, works on every other unix, would be to create a wrapper script in /usr/local/bin/. Assuming you have that in your $PATH. Otherwise the problem recurses to exetending your PATH.

% cat >> /usr/local/bin/c   <<EOF
#!/bin/sh
/usr/bin/c   -O2 -W -Wall -std=c  17 "$@"
EOF
% chmod a x /usr/local/bin/c

The cat creates the file and the chmod makes it executable by all. Use the text editor of your choice if you don't understand that cat command.