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authorLuke Granger-Brown <git@lukegb.com>2020-06-03T01·24+0100
committerVincent Ambo <tazjin@google.com>2020-06-03T01·24+0100
commit54b9925b931afbc762e03cced13e23d2b90427c2 (patch)
tree705dcd6c7b03096ce769d9cdc00eb742ff3b0e8e /presentations
parent76f4e273867b239bed818f569e491470116b6ed6 (diff)
fix(3p/cgit): Fix compilation under Clang r/878
Clang treats function-like macros "correctly", in that, per the C11 spec:
"Each subsequent instance of the function-like macro name followed by a (
[...] is replaced by the replacement list [...]".

Additionally, fprintf is also permitted to be defined as a function-like
macro rather than as a true function: "Any function declared in a header
may be additionally implemented as a function-like macro defined in the
header [...]". The specification then suggests surrounding the name of the
function in parens to avoid this, which is the technique we use here to avoid
the function-like macro being invoked.

The other fix here is to use uintptr_t for some arithmetic, since Git
is expecting an int as the value here and not a pointer.
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