diff -Naur MultiMC5-0.6.12.orig/libraries/systeminfo/src/sys_unix.cpp MultiMC5-0.6.12/libraries/systeminfo/src/sys_unix.cpp
--- MultiMC5-0.6.12.orig/libraries/systeminfo/src/sys_unix.cpp	2021-03-22 04:45:06.000000000 +0900
+++ MultiMC5-0.6.12/libraries/systeminfo/src/sys_unix.cpp	2021-04-29 06:41:55.269952475 +0900
@@ -4,6 +4,7 @@
 
 #include <sys/utsname.h>
 #include <fstream>
+#include <limits>
 
 Sys::KernelInfo Sys::getKernelInfo()
 {
