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build: assume errno.h is always available #9986

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@jay jay commented Nov 27, 2022

  • Remove errno.h detection from all build configurations.

errno.h is a standard header according to C89.

Closes #xxxx


Note HAVE_ERRNO_H was undefined in config-win32 when BSD-style lwIP TCP/IP stack was used. I'm not sure what that's about.
Note HAVE_ERRNO_H was not defined by config-win32ce so possibly some build system that builds for Windows CE is missing it.

/cc @gvanem

- Remove errno.h detection from all build configurations.

errno.h is a standard header according to C89.

Closes #xxxx
bagder
bagder approved these changes Nov 28, 2022
@vszakats
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Yep, errno.h is not present on WinCE MSVC + ARM. Likely less of an issue these days.

@jay jay closed this in fe3463e Dec 7, 2022
@jay jay deleted the remove_errno_header_detection branch December 7, 2022 19:47
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