https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89870
--- Comment #2 from Jonny Grant <jg at jguk dot org> ---
Good point!
Any header would be a good start... but as it is a CPP file being compiled by
g++ perhaps g++ should even suggest std::abort() and <cstdlib> ?
eg suggestion:
test.cpp: In function 'int main()':
test.cpp:3:5: error: 'abort' was not declared in this scope
3 | abort();
| ^~~~~
note: did you mean std::abort?
note: include '<cstdlib>' or provide a declaration of 'abort'
+++ |+#include <cstdlib>
