wip host build (#5431)

Author: d-a-v

Diff for: tests/host/common/AddrList.h

@@ -0,0 +1,4 @@
+
+// TODO
+// mock AddrList with POSIX mock API
+// later: real AddrList will work with lwIP API

Diff for: tests/host/sys/pgmspace.h

@@ -59,5 +59,9 @@ inline char *strcpy_P(char *dest, const char *src) { return strcpy(dest, src); }
 inline size_t strlen_P(const char *s) { return strlen(s); }
 inline int vsnprintf_P(char *str, size_t size, const char *format, va_list ap) { return vsnprintf(str, size, format, ap); }
 
+#define memcpy_P memcpy
+#define strncpy_P strncpy
+#define strcmp_P strcmp
+#define memccpy_P memccpy
 
 #endif