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From GitBox <...@apache.org>
Subject [GitHub] [incubator-nuttx] patacongo opened a new issue #1091: features.h: Out of date Clang support
Date Wed, 20 May 2020 13:04:15 GMT

patacongo opened a new issue #1091:
URL: https://github.com/apache/incubator-nuttx/issues/1091


   This was Issue 162 in the old Bitbucket repository
   
   Jon Taylor
   created an issue 2019-08-26
   
   Hi,
   
   In nuttx/include/features.h, there is a missing block found in my /usr/include/features.h:
   
       /* Similarly for clang. Features added to GCC after version 4.2 may
       or may not also be available in clang, and clang's definitions of
       __GNUC(_MINOR)__ are fixed at 4 and 2 respectively. Not all such
       features can be queried via __has_extension/__has_feature. */
       #if defined __clang_major__ && defined __clang_minor__
       # define __glibc_clang_prereq(maj, min) \
       ((__clang_major__ << 16) + __clang_minor__ >= ((maj) << 16) + (min))
       #else
       # define __glibc_clang_prereq(maj, min) 0
       #endif
   
   …which leads to build problems with NuttX on my Ubuntu 19 box. The features.h file in
general appears to be a copy of glibc’s features.h, which might therefore be out of date
and need to be updated…?
   


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