Forgot to add function check for fopen64 to CMake build

CMakeLists.txt

@@ -660,7 +660,7 @@ if(LIBC)
             strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa
             _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull
             atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp
-            vsscanf vsnprintf fseeko fseeko64 sigaction setjmp
+            vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp
             nanosleep sysconf sysctlbyname getauxval
             )
       string(TOUPPER ${_FN} _UPPER)