[GitHub] [incubator-nuttx] xiaoxiang781216 opened a new pull request #5807: sys/type.h: Change pid_t from int16_t to int

[GitBox]

xiaoxiang781216 opened a new pull request #5807:
URL: https://github.com/apache/incubator-nuttx/pull/5807


   ## Summary
   to fix the following warning:
   ```
   include/unistd.h:302:9: error: incompatible redeclaration of library 
function 'vfork' [-Werror,-Wincompatible-library-redeclaration]
   pid_t   vfork(void);
           ^
   include/unistd.h:302:9: note: 'vfork' is a builtin with type 'int (void)'
   ```
   
   ## Impact
   pid_t typedef
   
   ## Testing
   Pass CI
   


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