https://issues.dlang.org/show_bug.cgi?id=23867

--- Comment #1 from Lance Bachmeier <lance@lancebachmeier.com> ---
Adding #define __builtin_isnan isnan to the .c file fixes this.

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https://issues.dlang.org/show_bug.cgi?id=23867

Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
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                 CC|                            |bugzilla@digitalmars.com
           See Also|                            |https://issues.dlang.org/sh
                   |                            |ow_bug.cgi?id=23869

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https://issues.dlang.org/show_bug.cgi?id=23867

Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ImportC

--- Comment #2 from Walter Bright <bugzilla@digitalmars.com> ---
https://github.com/dlang/dmd/pull/15147

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https://issues.dlang.org/show_bug.cgi?id=23867

Dlang Bot <dlang-bot@dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull

--- Comment #3 from Dlang Bot <dlang-bot@dlang.rocks> ---
@bachmeil updated dlang/dmd pull request #15147 "Fix 23867 and 23869" fixing this issue:

- Fix issues 23867 and 23869 - define __builtin_isfinite and __builtin_isnan

  These GNU C builtins are referenced by macros such as:
  * ISNAN
  * R_FINITE

https://github.com/dlang/dmd/pull/15147

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https://issues.dlang.org/show_bug.cgi?id=23867

Dlang Bot <dlang-bot@dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Dlang Bot <dlang-bot@dlang.rocks> ---
dlang/dmd pull request #15147 "Fix 23867 and 23869" was merged into master:

- 812fd8a5fa5fb04c5d48e10a57905d5a39f39f13 by Lance Bachmeier:
  Fix issues 23867 and 23869 - define __builtin_isfinite and __builtin_isnan

  These GNU C builtins are referenced by macros such as:
  * ISNAN
  * R_FINITE

https://github.com/dlang/dmd/pull/15147

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