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[binutils-gdb.git] / libiberty / sigsetmask.c

diff --git a/libiberty/sigsetmask.c b/libiberty/sigsetmask.c
index 2a09e6a6c5ac5bc32aa6ef319427c17e5eaa625c..f705fbb2df2b02c7964ea1f8f39fff56d1e3a377 100644 (file)
--- a/libiberty/sigsetmask.c
+++ b/libiberty/sigsetmask.c
@@ -3,8 +3,17 @@
    Contributed by Cygnus Support.
    This file is in the public doamin. */
 
-/* Set the current signal mask to the set provided, and return the 
-   previous value */
+/*
+
+@deftypefn Supplemental int sigsetmask (int @var{set})
+
+Sets the signal mask to the one provided in @var{set} and returns
+the old mask (which, for libiberty's implementation, will always
+be the value @code{1}).
+
+@end deftypefn
+
+*/
 
 #define _POSIX_SOURCE
 #include <ansidecl.h>
@@ -12,6 +21,8 @@
 #include <sys/types.h>
 #include <signal.h>
 
+extern void abort PARAMS ((void)) ATTRIBUTE_NORETURN;
+
 #ifdef SIG_SETMASK
 int
 DEFUN(sigsetmask,(set),