--- mpop-1.0.28.old/src/conf.c
+++ mpop-1.0.28/src/conf.c
@@ -45,6 +45,9 @@
 /* buffer size for configuration file lines */
 #define LINEBUFSIZE 501
 
+#ifndef LLONG_MAX
+#define LLONG_MAX   9223372036854775807LL
+#endif
 
 /*
  * account_new()
--- mpop-1.0.28.old/src/pop3.c
+++ mpop-1.0.28/src/pop3.c
@@ -67,6 +67,9 @@
 # define SIZE_MAX ((size_t)-1)
 #endif
 
+#ifndef LLONG_MAX
+#define LLONG_MAX   9223372036854775807LL
+#endif
 
 /*
  * This defines the maximum amount of mails that a POP3 account is allowed to