Fix wasm target

runtime/src/main/cpp/Porting.h

@@ -20,6 +20,8 @@
 #include <stdint.h>
 #include <stddef.h>
 
+#include "Common.h"
+
 namespace konan {
 
 // Console operations.
@@ -43,6 +45,32 @@ void* memmem(const void *big, size_t bigLen, const void *little, size_t littleLe
 int snprintf(char* buffer, size_t size, const char* format, ...);
 size_t strnlen(const char* buffer, size_t maxSize);
 
+
+
+extern "C" {
+#ifdef KONAN_WASM
+
+RUNTIME_USED
+double pow(double x, double y);
+
+RUNTIME_USED
+void *memcpy(void *dst, const void *src, size_t n);
+
+RUNTIME_USED
+void *memmove(void *dst, const void *src, size_t len);
+
+RUNTIME_USED
+int memcmp(const void *s1, const void *s2, size_t n);
+
+RUNTIME_USED
+void *memset(void *b, int c, size_t len);
+
+RUNTIME_USED
+size_t strlen(const char *s);
+
+#endif
+}
+
 // Memory operations.
 void* calloc(size_t count, size_t size);
 void free(void* ptr);