Default value of errorformat in Vim

default_errorformat.vim

%*[^"]"%f"%*\D%l: %m
"%f"%*\D%l: %m
%-G%f:%l: (Each undeclared identifier is reported only once
%-G%f:%l: for each function it appears in.)
%-GIn file included from %f:%l:%c:
%-GIn file included from %f:%l:%c\,
%-GIn file included from %f:%l:%c
%-GIn file included from %f:%l
%-G%*[ ]from %f:%l:%c
%-G%*[ ]from %f:%l:
%-G%*[ ]from %f:%l\,
%-G%*[ ]from %f:%l
%f:%l:%c:%m
%f(%l):%m
%f:%l:%m
"%f"\, line %l%*\D%c%*[^ ] %m
%D%*\a[%*\d]: Entering directory `%f'
%X%*\a[%*\d]: Leaving directory `%f'
%D%*\a: Entering directory `%f'
%X%*\a: Leaving directory `%f'
%DMaking %*\a in %f
%f|%l| %m