1 files changed, 12 insertions, 17 deletions
diff --git a/mdk-stage1/dietlibc/lib/sigismember.c b/mdk-stage1/dietlibc/lib/sigismember.c
index 67a258884..8ffe9762a 100644
--- a/mdk-stage1/dietlibc/lib/sigismember.c
+++ b/mdk-stage1/dietlibc/lib/sigismember.c
@@ -1,21 +1,16 @@
-#define __USE_EXTERN_INLINES 1
 #include <signal.h>
+#include <errno.h>
 
-# define __sigmask(sig) \
-  (((unsigned long int) 1) << (((sig) - 1) % (8 * sizeof (unsigned long int))))
+#define __sigmask(sig)		( ((unsigned long)1) << (((sig)-1) % (8*sizeof(unsigned long))) )
+#define __sigword(sig)		( ((sig)-1) / (8*sizeof(unsigned long)) )
 
-# define __sigword(sig) (((sig) - 1) / (8 * sizeof (unsigned long int)))
-
-# define _SIGSET_NWORDS	(1024 / (8 * sizeof (unsigned long int)))
-typedef struct
-  {
-    unsigned long int __val[_SIGSET_NWORDS];
-  } __sigset_t;
-
-int __sigismember(const __sigset_t *set, int signo) {
-  unsigned long int __mask = __sigmask (signo);
-  unsigned long int __word = __sigword (signo);
-  return (set->__val[__word] & __mask);
+int sigismember(const sigset_t *set, int signo) {
+  if ((signo<1)||(signo>SIGRTMAX)) {
+    (*__errno_location())=EINVAL;
+    return -1;
+  } else {
+    unsigned long __mask = __sigmask (signo);
+    unsigned long __word = __sigword (signo);
+    return (set->sig[__word] & __mask)?1:0;
+  }
 }
-
-int sigismember(const sigset_t *env, int signo) __attribute__((weak,alias("__sigismember")));