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| author | James McCoy <jamessan@jamessan.com> | 2020-09-20 11:30:20 -0400 |
|---|---|---|
| committer | James McCoy <jamessan@jamessan.com> | 2020-09-20 11:45:56 -0400 |
| commit | 461c18edad41a2ab3301f40b4b2f240d9662800d (patch) | |
| tree | cefd9b610818264013d468742aaae0c1a344ac13 /src/nvim/macros.h | |
| parent | 9f704c88a57cfb797c21c19672ea6617e9673360 (diff) | |
| download | rneovim-461c18edad41a2ab3301f40b4b2f240d9662800d.tar.gz rneovim-461c18edad41a2ab3301f40b4b2f240d9662800d.tar.bz2 rneovim-461c18edad41a2ab3301f40b4b2f240d9662800d.zip | |
Only use __has_include when it is defined
Per GCC's documentation:
> The __has_include operator by itself, without any operand or parentheses, acts as a predefined macro so that support for it can be tested in portable code. Thus, the recommended use of the operator is as follows:
>
> #if defined __has_include
> # if __has_include (<stdatomic.h>)
> # include <stdatomic.h>
> # endif
> #endif
>
> The first ‘#if’ test succeeds only when the operator is supported by the version of GCC (or another compiler) being used. Only when that test succeeds is it valid to use __has_include as a preprocessor operator.
Diffstat (limited to 'src/nvim/macros.h')
| -rw-r--r-- | src/nvim/macros.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/nvim/macros.h b/src/nvim/macros.h index 0bbaa87aba..07dcb4a8e8 100644 --- a/src/nvim/macros.h +++ b/src/nvim/macros.h @@ -152,6 +152,12 @@ #define STR_(x) #x #define STR(x) STR_(x) +#ifndef __has_include +# define NVIM_HAS_INCLUDE(x) 0 +#else +# define NVIM_HAS_INCLUDE __has_include +#endif + #ifndef __has_attribute # define NVIM_HAS_ATTRIBUTE(x) 0 #elif defined(__clang__) && __clang__ == 1 \ |