[  0%] Building CXX object src/CMakeFiles/minetest.dir/util/numeric.cpp.o
/home/vanessa/Minetest-related/minetest_core/src/util/numeric.cpp: In function ‘u64 murmur_hash_64_ua(const void*, int, unsigned int)’:
/home/vanessa/Minetest-related/minetest_core/src/util/numeric.cpp:154:31: error: ‘memcpy’ was not declared in this scope
   memcpy(&k, data, sizeof(u64));
                               ^
make[2]: *** [src/CMakeFiles/minetest.dir/util/numeric.cpp.o] Error 1
make[1]: *** [src/CMakeFiles/minetest.dir/all] Error 2
make: *** [all] Error 2