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-rw-r--r--lib/signal.in.h36
1 files changed, 27 insertions, 9 deletions
diff --git a/lib/signal.in.h b/lib/signal.in.h
index b3d1c3afc99..ed01d672c9d 100644
--- a/lib/signal.in.h
+++ b/lib/signal.in.h
@@ -55,13 +55,13 @@
#ifndef _@GUARD_PREFIX@_SIGNAL_H
#define _@GUARD_PREFIX@_SIGNAL_H
-/* Mac OS X 10.3, FreeBSD 6.4, OpenBSD 3.8, OSF/1 4.0, Solaris 2.6, Android
- declare pthread_sigmask in <pthread.h>, not in <signal.h>.
+/* Mac OS X 10.3, FreeBSD 6.4, OpenBSD 3.8, OSF/1 4.0, Solaris 2.6, Android,
+ OS/2 kLIBC declare pthread_sigmask in <pthread.h>, not in <signal.h>.
But avoid namespace pollution on glibc systems.*/
#if (@GNULIB_PTHREAD_SIGMASK@ || defined GNULIB_POSIXCHECK) \
&& ((defined __APPLE__ && defined __MACH__) \
|| defined __FreeBSD__ || defined __OpenBSD__ || defined __osf__ \
- || defined __sun || defined __ANDROID__) \
+ || defined __sun || defined __ANDROID__ || defined __KLIBC__) \
&& ! defined __GLIBC__
# include <pthread.h>
#endif
@@ -133,16 +133,24 @@ typedef void (*sighandler_t) (int);
# define pthread_sigmask rpl_pthread_sigmask
# endif
_GL_FUNCDECL_RPL (pthread_sigmask, int,
- (int how, const sigset_t *new_mask, sigset_t *old_mask));
+ (int how,
+ const sigset_t *restrict new_mask,
+ sigset_t *restrict old_mask));
_GL_CXXALIAS_RPL (pthread_sigmask, int,
- (int how, const sigset_t *new_mask, sigset_t *old_mask));
+ (int how,
+ const sigset_t *restrict new_mask,
+ sigset_t *restrict old_mask));
# else
# if !(@HAVE_PTHREAD_SIGMASK@ || defined pthread_sigmask)
_GL_FUNCDECL_SYS (pthread_sigmask, int,
- (int how, const sigset_t *new_mask, sigset_t *old_mask));
+ (int how,
+ const sigset_t *restrict new_mask,
+ sigset_t *restrict old_mask));
# endif
_GL_CXXALIAS_SYS (pthread_sigmask, int,
- (int how, const sigset_t *new_mask, sigset_t *old_mask));
+ (int how,
+ const sigset_t *restrict new_mask,
+ sigset_t *restrict old_mask));
# endif
# if __GLIBC__ >= 2
_GL_CXXALIASWARN (pthread_sigmask);
@@ -295,10 +303,14 @@ _GL_CXXALIASWARN (sigpending);
# define SIG_SETMASK 1 /* blocked_set = *set; */
# define SIG_UNBLOCK 2 /* blocked_set = blocked_set & ~*set; */
_GL_FUNCDECL_SYS (sigprocmask, int,
- (int operation, const sigset_t *set, sigset_t *old_set));
+ (int operation,
+ const sigset_t *restrict set,
+ sigset_t *restrict old_set));
# endif
_GL_CXXALIAS_SYS (sigprocmask, int,
- (int operation, const sigset_t *set, sigset_t *old_set));
+ (int operation,
+ const sigset_t *restrict set,
+ sigset_t *restrict old_set));
_GL_CXXALIASWARN (sigprocmask);
/* Install the handler FUNC for signal SIG, and return the previous
@@ -322,6 +334,12 @@ _GL_FUNCDECL_RPL (signal, _gl_function_taking_int_returning_void_t,
_GL_CXXALIAS_RPL (signal, _gl_function_taking_int_returning_void_t,
(int sig, _gl_function_taking_int_returning_void_t func));
# else
+/* On OpenBSD, the declaration of 'signal' may not be present at this point,
+ because it occurs in <sys/signal.h>, not <signal.h> directly. */
+# if defined __OpenBSD__
+_GL_FUNCDECL_SYS (signal, _gl_function_taking_int_returning_void_t,
+ (int sig, _gl_function_taking_int_returning_void_t func));
+# endif
_GL_CXXALIAS_SYS (signal, _gl_function_taking_int_returning_void_t,
(int sig, _gl_function_taking_int_returning_void_t func));
# endif