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Merge pull request #481 from katterjohn/master

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Avoid undefined C macro behavior
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Alex Shinn 2018-07-30 10:37:53 +08:00 • committed by GitHub
commit 96de49efb8
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2 changed files with 6 additions and 1 deletions
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AUTHORS
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@ -46,6 +46,7 @@ Thanks to the following people for patches and bug reports:
* Jeronimo Pellegrini
* John Cowan
* John Samsa
* Kris Katterjohn
* Lars J Aas
* Lorenzo Campedelli
* Marc Nieper-Wißkirchen

6
include/chibi/features.h
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@ -304,7 +304,11 @@
/* for bignum support, need a double long to store long*long */
/* gcc supports uint128_t, otherwise we need a custom struct */
#ifndef SEXP_USE_CUSTOM_LONG_LONGS
#define SEXP_USE_CUSTOM_LONG_LONGS (SEXP_64_BIT && !defined(__GNUC__))
#if SEXP_64_BIT && !defined(__GNUC__)
#define SEXP_USE_CUSTOM_LONG_LONGS 1
#else
#define SEXP_USE_CUSTOM_LONG_LONGS 0
#endif
#endif
#ifndef SEXP_USE_NO_FEATURES