libc: Stub out strtod()

libs/libc/include/stdlib.h

@@ -63,6 +63,8 @@ extern "C"
     /* Returns an integer (of type unsigned long) parsed from the string str. */
     unsigned long strtoul(const char* str, char** endptr, int base);
 
+    double strtod(const char* str, char** endptr); // Not implemented.
+
     /* Returns an integer (of type long) parsed from the string str. */
     long strtol(const char* str, char** endptr, int base);
 

libs/libc/src/stdlib.cpp

@@ -303,4 +303,9 @@ extern "C"
         if (errno) return NULL;
         return str;
     }
+
+    double strtod(const char*, char**)
+    {
+        NOT_IMPLEMENTED("strtod");
+    }
 }