How can I hide “defined but not used” warnings in GCC?
http://stackoverflow.com/questions/386220/how-can-i-hide-defined-but-not-used-warnings-in-gcc
Just saw this thread while searching for solutions to this problem. I post here for completeness the solution I found...
The GCC compiler flags that control unused warnings include:
-Wunused-function
-Wunused-label
-Wunused-parameter
-Wunused-value
-Wunused-variable
-Wunused (=all of the above)
Each of these has a corresponding negative form with "no-" inserted after the W which turns off the warning (in case it was turned on by -Wall, for example). Thus, in your case you should use
-Wno-unused-function
Of course this works for the whole code, not just compile-time asserts. For function-specific behaviour, have a look at Function attributes.
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