osm2pgsql pedantic warnings (errors on windows)

osmpgsql.txt

../node-ram-cache.c:122:9: warning: extension used [-pedantic,-Wlanguage-extension-token]
        Swap( queue[i], queue[parent] );
        ^
../node-ram-cache.c:112:21: note: expanded from macro 'Swap'
#define Swap(a,b) { typeof(a) __tmp = a; a = b; b = __tmp; }
                    ^
../node-ram-cache.c:135:29: warning: arithmetic on a pointer to void is a GNU extension [-pedantic,-Wpointer-arith]
        result = blockCache + cacheSize - pos + SAFETY_MARGIN;
                 ~~~~~~~~~~ ^
../node-ram-cache.c:135:41: warning: arithmetic on a pointer to void is a GNU extension [-pedantic,-Wpointer-arith]
        result = blockCache + cacheSize - pos + SAFETY_MARGIN;
                 ~~~~~~~~~~~~~~~~~~~~~~ ^
../node-ram-cache.c:135:47: warning: arithmetic on a pointer to void is a GNU extension [-pedantic,-Wpointer-arith]
        result = blockCache + cacheSize - pos + SAFETY_MARGIN;
                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
../node-ram-cache.c:246:25: warning: extension used [-pedantic,-Wlanguage-extension-token]
                        Swap( queue[i], queue[2*i+1] );
                        ^
../node-ram-cache.c:112:21: note: expanded from macro 'Swap'
#define Swap(a,b) { typeof(a) __tmp = a; a = b; b = __tmp; }
                    ^
../node-ram-cache.c:253:25: warning: extension used [-pedantic,-Wlanguage-extension-token]
                        Swap( queue[i], queue[2*i+2] );
                        ^
../node-ram-cache.c:112:21: note: expanded from macro 'Swap'
#define Swap(a,b) { typeof(a) __tmp = a; a = b; b = __tmp; }
                    ^
6 warnings generated.