[MacPorts] #71023: mpich-clang13 @4.2.2: error: _Float16 is not supported on this target

[MacPorts]

#71023: mpich-clang13 @4.2.2: error: _Float16 is not supported on this target
------------------------+---------------------------
 Reporter:  ryandesign  |      Owner:  eborisch
     Type:  defect      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.10.2
 Keywords:  sequoia     |       Port:  mpich-clang13
------------------------+---------------------------
 https://build.macports.org/builders/ports-
 15_x86_64-builder/builds/3399/steps/install-port/logs/stdio

 {{{
 In file included from json_tokener.c:19:
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:614:27:
 error: _Float16 is not supported on this target
 extern _Float16 __fabsf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
                           ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:614:8:
 error: _Float16 is not supported on this target
 extern _Float16 __fabsf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
        ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:615:28:
 error: _Float16 is not supported on this target
 extern _Float16 __hypotf16(_Float16, _Float16)
 __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
                            ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:615:38:
 error: _Float16 is not supported on this target
 extern _Float16 __hypotf16(_Float16, _Float16)
 __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
                                      ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:615:8:
 error: _Float16 is not supported on this target
 extern _Float16 __hypotf16(_Float16, _Float16)
 __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
        ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:616:27:
 error: _Float16 is not supported on this target
 extern _Float16 __sqrtf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
                           ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:616:8:
 error: _Float16 is not supported on this target
 extern _Float16 __sqrtf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
        ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:617:27:
 error: _Float16 is not supported on this target
 extern _Float16 __ceilf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
                           ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:617:8:
 error: _Float16 is not supported on this target
 extern _Float16 __ceilf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
        ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:618:28:
 error: _Float16 is not supported on this target
 extern _Float16 __floorf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
                            ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:618:8:
 error: _Float16 is not supported on this target
 extern _Float16 __floorf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
        ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:619:27:
 error: _Float16 is not supported on this target
 extern _Float16 __rintf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
                           ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:619:8:
 error: _Float16 is not supported on this target
 extern _Float16 __rintf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
        ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:620:28:
 error: _Float16 is not supported on this target
 extern _Float16 __roundf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
                            ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:620:8:
 error: _Float16 is not supported on this target
 extern _Float16 __roundf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
        ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:621:28:
 error: _Float16 is not supported on this target
 extern _Float16 __truncf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
                            ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:621:8:
 error: _Float16 is not supported on this target
 extern _Float16 __truncf16(_Float16) __API_AVAILABLE(macos(15.0),
 ios(18.0), watchos(11.0), tvos(18.0));
        ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:622:31:
 error: _Float16 is not supported on this target
 extern _Float16 __copysignf16(_Float16, _Float16)
 __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
                               ^
 /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/math.h:622:41:
 error: _Float16 is not supported on this target
 extern _Float16 __copysignf16(_Float16, _Float16)
 __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
                                         ^
 fatal error: too many errors emitted, stopping now [-ferror-limit=]
 }}}

 This is weird to me because the `__API_AVAILABLE` statement says it's
 available on macOS 15.0 and we're running macOS 15.0 and as far as I can
 tell the deployment target is set to 15.0.

-- 
Ticket URL: <https://trac.macports.org/ticket/71023>
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