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?
How to set global Clang flags?
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1 Answers
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.
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