some preliminaries for adding POSIX timers

arch/i386/bits/alltypes.h.sh

@@ -107,7 +107,7 @@ TYPEDEF long long blkcnt_t;
 TYPEDEF unsigned long long fsblkcnt_t;
 TYPEDEF unsigned long long fsfilcnt_t;
 
-TYPEDEF void * timer_t;
+TYPEDEF struct __timer * timer_t;
 TYPEDEF int clockid_t;
 TYPEDEF unsigned long clock_t;
 

arch/x86_64/bits/alltypes.h.sh

@@ -107,7 +107,7 @@ TYPEDEF long long blkcnt_t;
 TYPEDEF unsigned long long fsblkcnt_t;
 TYPEDEF unsigned long long fsfilcnt_t;
 
-TYPEDEF void * timer_t;
+TYPEDEF struct __timer * timer_t;
 TYPEDEF int clockid_t;
 TYPEDEF long clock_t;
 

src/internal/pthread_impl.h

@@ -43,6 +43,10 @@ struct pthread {
 	} robust_list;
 };
 
+struct __timer {
+	struct sigevent sev;
+};
+
 #define __SU (sizeof(size_t)/sizeof(int))
 
 #define _a_stacksize __u.__s[0]