1 files changed, 35 insertions, 0 deletions

diff --git a/contrib/gcclibs/libiberty/waitpid.c b/contrib/gcclibs/libiberty/waitpid.c
new file mode 100644
index 000000000000..fd519d7696e0
--- /dev/null
+++ b/contrib/gcclibs/libiberty/waitpid.c
@@ -0,0 +1,35 @@
+/*
+
+@deftypefn Supplemental int waitpid (int @var{pid}, int *@var{status}, int)
+
+This is a wrapper around the @code{wait} function.  Any ``special''
+values of @var{pid} depend on your implementation of @code{wait}, as
+does the return value.  The third argument is unused in @libib{}.
+
+@end deftypefn
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "ansidecl.h"
+
+/* On some systems (such as WindISS), you must include <sys/types.h>
+   to get the definition of "pid_t" before you include <sys/wait.h>.  */
+#include <sys/types.h>
+
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+
+pid_t
+waitpid (pid_t pid, int *stat_loc, int options ATTRIBUTE_UNUSED)
+{
+  for (;;)
+    {
+      int wpid = wait(stat_loc);
+      if (wpid == pid || wpid == -1)
+	return wpid;
+    }
+}