FreeBSD/Linux Kernel Cross Reference
sys/contrib/libsodium/test/constcheck.sh

     #! /bin/sh
     
     CT='ct.c'
     
     echo '#include <assert.h>' > "$CT"
     echo '#include <sodium.h>' >> "$CT"
     echo 'int main(void) {' >> "$CT"
     for macro in $(egrep -r '#define crypto_.*BYTES(_[A-Z]+)? ' src/libsodium/include | \
                    cut -d: -f2- | cut -d' ' -f2 | \
                   fgrep -v edwards25519sha512batch | sort -u); do
      func=$(echo "$macro" | tr A-Z a-z)
      echo "    assert($func() == $macro);" >> "$CT"
    done
    echo "return 0; }" >> "$CT"
    
    ${CC:-cc} "$CT" $CPPFLAGS $CFLAGS $LDFLAGS -lsodium || exit 1
    ./a.out || exit 1
    rm -f a.out "$CT"
    

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