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[clang][headers][Apple] Don't include_next float.h to avoid an unnecessary module dependency #137432

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Merged
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Apr 29, 2025
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[clang][headers][Apple] Don't include_next float.h to avoid an unnecessary module dependency #137432

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13 changes: 2 additions & 11 deletions clang/lib/Headers/float.h
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Original file line number Diff line number Diff line change
Expand Up @@ -18,21 +18,12 @@
* additional definitions provided for Windows.
* For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx
*
* Also fall back on Darwin and AIX to allow additional definitions and
* Also fall back on AIX to allow additional definitions and
* implementation-defined values.
*/
#if (defined(__APPLE__) || defined(__MINGW32__) || defined(_MSC_VER) || \
defined(_AIX)) && \
#if (defined(__MINGW32__) || defined(_MSC_VER) || defined(_AIX)) && \
__STDC_HOSTED__ && __has_include_next(<float.h>)

/* Prior to Apple's 10.7 SDK, float.h SDK header used to apply an extra level
* of #include_next<float.h> to keep Metrowerks compilers happy. Avoid this
* extra indirection.
*/
#ifdef __APPLE__
#define _FLOAT_H_
#endif

# include_next <float.h>

/* Undefine anything that we'll be redefining below. */
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