timeout interval is extern

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@117 f882894a-f735-0410-b71e-b25c423dba1c

plugins/popen.h.in

@@ -2,7 +2,7 @@ FILE *spopen (const char *);
 int spclose (FILE *);
 RETSIGTYPE popen_timeout_alarm_handler (int);
 
-int timeout_interval;
+extern int timeout_interval;
 pid_t *childpid;
 int *child_stderr_array;
 FILE *child_process;