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"func not implemented" croaks optimizations in /win32/*
This commit removes a number of "* not implemented" strings from the image.
A win32_croak_not_implemented wrapper is created to reduce machine code
by not putting the format string on the C stack many times. embed.fnc was
used to declare win32_croak_not_implemented for proper cross compiler
support of noreturn (noreturn on GCC and VC ok). Tailcalling and noreturn
optimizations of the C compiler are heavily used in this commit.
https://perl5.git.perl.org / perl5.git / commit