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[libc++] Guard include of <features.h> with __has_include #127691

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Merged
merged 1 commit into from
Feb 19, 2025
Merged

[libc++] Guard include of <features.h> with __has_include #127691

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14 changes: 8 additions & 6 deletions libcxx/include/__configuration/platform.h
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Original file line number Diff line number Diff line change
Expand Up @@ -32,12 +32,14 @@

// Need to detect which libc we're using if we're on Linux.
#if defined(__linux__) || defined(__AMDGPU__) || defined(__NVPTX__)
# include <features.h>
# if defined(__GLIBC_PREREQ)
# define _LIBCPP_GLIBC_PREREQ(a, b) __GLIBC_PREREQ(a, b)
# else
# define _LIBCPP_GLIBC_PREREQ(a, b) 0
# endif // defined(__GLIBC_PREREQ)
# if __has_include(<features.h>)
# include <features.h>
# if defined(__GLIBC_PREREQ)
# define _LIBCPP_GLIBC_PREREQ(a, b) __GLIBC_PREREQ(a, b)
# else
# define _LIBCPP_GLIBC_PREREQ(a, b) 0
# endif // defined(__GLIBC_PREREQ)
# endif
#endif

#ifndef __BYTE_ORDER__
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