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Test for gcc version
Posted by Anonymous on Tue 31st Aug 2021 16:19
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  1. **** Documentation:
  2. https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
  3.  
  4.  
  5. **** Symbols to use:
  6. #define GCC_VERSION (__GNUC__ * 10000 \
  7.                      + __GNUC_MINOR__ * 100 \
  8.                      + __GNUC_PATCHLEVEL__)
  9. …
  10. /* Test for GCC > 3.2.0 */
  11. #if GCC_VERSION > 30200
  12.  
  13.  
  14. **** How can I find out which gcc version I use ?
  15. $ gcc -dM -E - < /dev/null | egrep GNUC
  16. #define __GNUC__ 10
  17. #define __GNUC_PATCHLEVEL__ 0
  18. #define __GNUC_STDC_INLINE__ 1
  19. #define __GNUC_MINOR__ 2

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