remove some duplicates in bits/signum.h. No code changes.

 include/signal.h                        |   42 +++++++++++++++++++-------------
 libc/sysdeps/linux/alpha/bits/signum.h  |   19 --------------
 libc/sysdeps/linux/common/bits/signum.h |   22 ----------------
 libc/sysdeps/linux/hppa/bits/signum.h   |   17 ------------
 libc/sysdeps/linux/mips/bits/signum.h   |   23 +----------------
 libc/sysdeps/linux/sparc/bits/signum.h  |   20 ---------------
 6 files changed, 27 insertions(+), 116 deletions(-)

5 files changed, 2 insertions, 99 deletions

diff --git a/libc/sysdeps/linux/alpha/bits/signum.h b/libc/sysdeps/linux/alpha/bits/signum.h
index 477c13175..46dca8c08 100644
--- a/libc/sysdeps/linux/alpha/bits/signum.h
+++ b/libc/sysdeps/linux/alpha/bits/signum.h
@@ -19,15 +19,6 @@
 
 #ifdef	_SIGNAL_H
 
-/* Fake signal functions.  */
-#define SIG_ERR ((__sighandler_t) -1) /* Error return.  */
-#define SIG_DFL ((__sighandler_t) 0) /* Default action.  */
-#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal.  */
-
-#ifdef __USE_UNIX98
-# define SIG_HOLD	((__sighandler_t) 2)	/* Add signal to hold mask.  */
-#endif
-
 /*
  * Linux/AXP has different signal numbers that Linux/i386: I'm trying
  * to make it OSF/1 binary compatible, at least for normal binaries.
@@ -69,14 +60,4 @@
 #define SIGPWR	SIGINFO
 #define SIGIOT	SIGABRT
 
-#define	_NSIG		65	/* Biggest signal number + 1.  */
-
-#define SIGRTMIN	(__libc_current_sigrtmin ())
-#define SIGRTMAX	(__libc_current_sigrtmax ())
-
-/* These are the hard limits of the kernel.  These values should not be
-   used directly at user level.  */
-#define __SIGRTMIN	32
-#define __SIGRTMAX	(_NSIG - 1)
-
 #endif	/* <signal.h> included.  */
diff --git a/libc/sysdeps/linux/common/bits/signum.h b/libc/sysdeps/linux/common/bits/signum.h
index a18ac113a..81d38f5c5 100644
--- a/libc/sysdeps/linux/common/bits/signum.h
+++ b/libc/sysdeps/linux/common/bits/signum.h
@@ -19,17 +19,6 @@
 
 #ifdef	_SIGNAL_H
 
-/* Fake signal functions.  */
-#define SIG_ERR	((__sighandler_t) -1)		/* Error return.  */
-#define SIG_DFL	((__sighandler_t) 0)		/* Default action.  */
-#define SIG_IGN	((__sighandler_t) 1)		/* Ignore signal.  */
-
-#ifdef __USE_UNIX98
-# define SIG_HOLD	((__sighandler_t) 2)	/* Add signal to hold mask.  */
-#endif
-
-
-/* Signals.  */
 #define	SIGHUP		1	/* Hangup (POSIX).  */
 #define	SIGINT		2	/* Interrupt (ANSI).  */
 #define	SIGQUIT		3	/* Quit (POSIX).  */
@@ -66,15 +55,4 @@
 #define SIGSYS		31	/* Bad system call.  */
 #define SIGUNUSED	31
 
-#define	_NSIG		65	/* Biggest signal number + 1
-				   (including real-time signals).  */
-
-#define SIGRTMIN        (__libc_current_sigrtmin ())
-#define SIGRTMAX        (__libc_current_sigrtmax ())
-
-/* These are the hard limits of the kernel.  These values should not be
-   used directly at user level.  */
-#define __SIGRTMIN	32
-#define __SIGRTMAX	(_NSIG - 1)
-
 #endif	/* <signal.h> included.  */
diff --git a/libc/sysdeps/linux/hppa/bits/signum.h b/libc/sysdeps/linux/hppa/bits/signum.h
index bf46006c8..7eeda4852 100644
--- a/libc/sysdeps/linux/hppa/bits/signum.h
+++ b/libc/sysdeps/linux/hppa/bits/signum.h
@@ -19,17 +19,6 @@
 
 #ifdef	_SIGNAL_H
 
-/* Fake signal functions.  */
-#define SIG_ERR	((__sighandler_t) -1)		/* Error return.  */
-#define SIG_DFL	((__sighandler_t) 0)		/* Default action.  */
-#define SIG_IGN	((__sighandler_t) 1)		/* Ignore signal.  */
-
-#ifdef __USE_UNIX98
-# define SIG_HOLD	((__sighandler_t) 2)	/* Add signal to hold mask.  */
-#endif
-
-
-/* Signals.  */
 #define	SIGHUP		1	/* Hangup (POSIX).  */
 #define	SIGINT		2	/* Interrupt (ANSI).  */
 #define	SIGQUIT		3	/* Quit (POSIX).  */
@@ -71,12 +60,6 @@
 #define	_NSIG		65	/* Biggest signal number + 1
 				   (including real-time signals).  */
 
-#define SIGRTMIN        (__libc_current_sigrtmin ())
-#define SIGRTMAX        (__libc_current_sigrtmax ())
-
-/* These are the hard limits of the kernel.  These values should not be
-   used directly at user level.  */
 #define __SIGRTMIN	37
-#define __SIGRTMAX	(_NSIG - 1)
 
 #endif	/* <signal.h> included.  */
diff --git a/libc/sysdeps/linux/mips/bits/signum.h b/libc/sysdeps/linux/mips/bits/signum.h
index 6176b90b9..b9c64e675 100644
--- a/libc/sysdeps/linux/mips/bits/signum.h
+++ b/libc/sysdeps/linux/mips/bits/signum.h
@@ -19,16 +19,6 @@
 
 #ifdef	_SIGNAL_H
 
-/* Fake signal functions.  */
-#define SIG_ERR ((__sighandler_t) -1)		/* Error return.  */
-#define SIG_DFL ((__sighandler_t) 0)		/* Default action.  */
-#define SIG_IGN ((__sighandler_t) 1)		/* Ignore signal.  */
-
-#ifdef __USE_UNIX98
-# define SIG_HOLD	((__sighandler_t) 2)	/* Add signal to hold mask.  */
-#endif
-
-
 #define SIGHUP		 1	/* Hangup (POSIX).  */
 #define SIGINT		 2	/* Interrupt (ANSI).  */
 #define SIGQUIT		 3	/* Quit (POSIX).  */
@@ -64,16 +54,7 @@
 #define SIGXCPU		30	/* CPU limit exceeded (4.2 BSD).  */
 #define SIGXFSZ		31	/* File size limit exceeded (4.2 BSD).  */
 
-
-#define _NSIG		129	/* Biggest signal number + 1
-				   (including real-time signals).  */
-
-#define SIGRTMIN	(__libc_current_sigrtmin ())
-#define SIGRTMAX	(__libc_current_sigrtmax ())
-
-/* These are the hard limits of the kernel.  These values should not be
-   used directly at user level.  */
-#define __SIGRTMIN	32
-#define __SIGRTMAX	(_NSIG - 1)
+/* Biggest signal number + 1 (including real-time signals).  */
+#define _NSIG		129
 
 #endif	/* <signal.h> included.  */
diff --git a/libc/sysdeps/linux/sparc/bits/signum.h b/libc/sysdeps/linux/sparc/bits/signum.h
index 6b58ec29d..2dcbb3ca9 100644
--- a/libc/sysdeps/linux/sparc/bits/signum.h
+++ b/libc/sysdeps/linux/sparc/bits/signum.h
@@ -19,15 +19,6 @@
 
 #ifdef	_SIGNAL_H
 
-/* Fake signal functions.  */
-#define SIG_ERR ((__sighandler_t) -1) /* Error return.  */
-#define SIG_DFL ((__sighandler_t) 0) /* Default action.  */
-#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal.  */
-
-#ifdef __USE_UNIX98
-# define SIG_HOLD	((__sighandler_t) 2)	/* Add signal to hold mask.  */
-#endif
-
 /*
  * Linux/SPARC has different signal numbers that Linux/i386: I'm trying
  * to make it OSF/1 binary compatible, at least for normal binaries.
@@ -70,15 +61,4 @@
 #define SIGUSR1		30
 #define SIGUSR2		31
 
-#define	_NSIG		65	/* Biggest signal number + 1
-				   (including real-time signals).  */
-
-#define SIGRTMIN        (__libc_current_sigrtmin ())
-#define SIGRTMAX        (__libc_current_sigrtmax ())
-
-/* These are the hard limits of the kernel.  These values should not be
-   used directly at user level.  */
-#define __SIGRTMIN	32
-#define __SIGRTMAX	(_NSIG - 1)
-
 #endif	/* <signal.h> included.  */