update from main archive 961229 cvs/libc20x-970306 cvs/libc-961231 cvs/libc-961230

Mon Dec 30 01:32:59 1996  Ulrich Drepper  <drepper@cygnus.com>

	* tme/localtime.c: Rewrite so that localtime_r does not call tzset,
	but localtime does.

	* features.h: Rename ANSI C to ISO C.
	Mention __GLIBC__ and __GLIBC_MINOR__ macros.

	* gnu-versions.h: Add _GNU_GETOPT_INTERFACE_VERSION.
	* posix/getopt.c: Use _GNU_GETOPT_INTERFACE_VERSION to check
	whether we can elide the code.
	* posix/getopt1.c: Likewise.
	* posix/Makefile: Correct copyright.

	* elf/dl-error.c (_dl_catch_error): Clear `catch' also when error
	occurred.
	* elf/dl-support.c (_dl_sysdep_open_zero_fill): Don't define if
	MAP_ANON is defined.
	* elf/eval.c: Use __getline instead of getline.
	* elf/rtld.c (dl_main): Check return value of _dl_new_object
	function for NULL.
	* sysdeps/generic/dl-cache.c: Update copyright.

	* signal/Makefile: Correct copyright.
	(routines): Remove gsignal and ssignal.  Add bsd_signal.
	* signal/gsignal.c: Removed.  Now is made an alias.
	* signal/ssignal.c: Likewise.
	* sysdeps/posix/raise.c: Add alias gsignal.
	* sysdeps/stub/raise.c: Likewise.
	* sysdeps/posix/signal.c: Add alias ssignal.
	* sysdeps/stub/signal.c: Likewise.
	* signal/signal.h: Declare bsd_signal.  Define signal as bsd_signal
	if __FAVOR_BSD.
	* sysdeps/posix/bsd_signal.c: New file.  Implementation of XPG
	function.

	* sysdeps/unix/sysv/linux/signal.c: Add explanation.

	* socket/sys/un.h: Define SUN_LEN according to POSIX.1g.

	* stdio-common/Makefile (tests): Add scanf10.
	* stdio-common/scanf10.c: New file.
	* stdio-common/vfscanf.c: Decrement counter if EOF is read while
	reading string.

	* sysdeps/libm-i387/e_acos.S: Use END, not PSEUDO_END.
	* sysdeps/libm-i387/e_acosl.S: Likewise.
	* sysdeps/libm-i387/e_asin.S: Likewise.
	* sysdeps/libm-i387/e_asinl.S: Likewise.
	* sysdeps/libm-i387/e_atan2.S: Likewise.
	* sysdeps/libm-i387/e_atan2f.S: Likewise.
	* sysdeps/libm-i387/e_atan2l.S: Likewise.
	* sysdeps/libm-i387/e_exp.S: Likewise.
	* sysdeps/libm-i387/e_expl.S: Likewise.
	* sysdeps/libm-i387/e_fmod.S: Likewise.
	* sysdeps/libm-i387/e_fmodl.S: Likewise.
	* sysdeps/libm-i387/e_log.S: Likewise.
	* sysdeps/libm-i387/e_log10.S: Likewise.
	* sysdeps/libm-i387/e_log10l.S: Likewise.
	* sysdeps/libm-i387/e_logl.S: Likewise.
	* sysdeps/libm-i387/e_remainder.S: Likewise.
	* sysdeps/libm-i387/e_remainderf.S: Likewise.
	* sysdeps/libm-i387/e_remainderl.S: Likewise.
	* sysdeps/libm-i387/e_scalb.S: Likewise.
	* sysdeps/libm-i387/e_scalbl.S: Likewise.
	* sysdeps/libm-i387/e_sqrt.S: Likewise.
	* sysdeps/libm-i387/e_sqrtf.S: Likewise.
	* sysdeps/libm-i387/e_sqrtl.S: Likewise.
	* sysdeps/libm-i387/s_atan.S: Likewise.
	* sysdeps/libm-i387/s_atanf.S: Likewise.
	* sysdeps/libm-i387/s_atanl.S: Likewise.
	* sysdeps/libm-i387/s_ceil.S: Likewise.
	* sysdeps/libm-i387/s_ceilf.S: Likewise.
	* sysdeps/libm-i387/s_ceill.S: Likewise.
	* sysdeps/libm-i387/s_copysign.S: Likewise.
	* sysdeps/libm-i387/s_copysignf.S: Likewise.
	* sysdeps/libm-i387/s_copysignl.S: Likewise.
	* sysdeps/libm-i387/s_cos.S: Likewise.
	* sysdeps/libm-i387/s_cosf.S: Likewise.
	* sysdeps/libm-i387/s_cosl.S: Likewise.
	* sysdeps/libm-i387/s_finite.S: Likewise.
	* sysdeps/libm-i387/s_finitef.S: Likewise.
	* sysdeps/libm-i387/s_finitel.S: Likewise.
	* sysdeps/libm-i387/s_floor.S: Likewise.
	* sysdeps/libm-i387/s_floorf.S: Likewise.
	* sysdeps/libm-i387/s_floorl.S: Likewise.
	* sysdeps/libm-i387/s_ilogb.S: Likewise.
	* sysdeps/libm-i387/s_ilogbf.S: Likewise.
	* sysdeps/libm-i387/s_ilogbl.S: Likewise.
	* sysdeps/libm-i387/s_log1p.S: Likewise.
	* sysdeps/libm-i387/s_log1pf.S: Likewise.
	* sysdeps/libm-i387/s_log1pl.S: Likewise.
	* sysdeps/libm-i387/s_logb.S: Likewise.
	* sysdeps/libm-i387/s_logbf.S: Likewise.
	* sysdeps/libm-i387/s_logbl.S: Likewise.
	* sysdeps/libm-i387/s_rint.S: Likewise.
	* sysdeps/libm-i387/s_rintf.S: Likewise.
	* sysdeps/libm-i387/s_rintl.S: Likewise.
	* sysdeps/libm-i387/s_scalbn.S: Likewise.
	* sysdeps/libm-i387/s_scalbnf.S: Likewise.
	* sysdeps/libm-i387/s_scalbnl.S: Likewise.
	* sysdeps/libm-i387/s_significand.S: Likewise.
	* sysdeps/libm-i387/s_significandf.S: Likewise.
	* sysdeps/libm-i387/s_significandl.S: Likewise.
	* sysdeps/libm-i387/s_sin.S: Likewise.
	* sysdeps/libm-i387/s_sinf.S: Likewise.
	* sysdeps/libm-i387/s_sinl.S: Likewise.

	* sysdeps/libm-i387/e_log.S: Use fyl2xp1 instruction for values
	near 1 to increase precision.
	* sysdeps/libm-i387/e_log10.S: Likewise.
	* sysdeps/libm-i387/e_log10l.S: Likewise.
	* sysdeps/libm-i387/e_logl.S: Likewise.

	* sysdeps/libm-i387/s_cos.S: Use testl instead of andw.
	* sysdeps/libm-i387/s_cosl.S: Likewise.
	* sysdeps/libm-i387/s_sin.S: Likewise.
	* sysdeps/libm-i387/s_sinl.S: Likewise.
	* sysdeps/libm-i387/s_tan.S: Likewise.
	* sysdeps/libm-i387/s_tanl.S: Likewise.

	* sysdeps/libm-i387/e_acosf.S: New file.  Add float versions.
	* sysdeps/libm-i387/e_asinf.S: Likewise.
	* sysdeps/libm-i387/e_expf.S: Likewise.
	* sysdeps/libm-i387/e_fmodf.S: Likewise.
	* sysdeps/libm-i387/e_log10f.S: Likewise.
	* sysdeps/libm-i387/e_logf.S: Likewise.
	* sysdeps/libm-i387/e_scalbf.S: Likewise.

	* sysdeps/libm-i387/e_acosh.S: New file.  Highly optimized versions.
	* sysdeps/libm-i387/e_acoshf.S: Likewise.
	* sysdeps/libm-i387/e_acoshl.S: Likewise.
	* sysdeps/libm-i387/e_atanh.S: Likewise.
	* sysdeps/libm-i387/e_atanhf.S: Likewise.
	* sysdeps/libm-i387/e_atanhl.S: Likewise.
	* sysdeps/libm-i387/e_asinh.S: Likewise.
	* sysdeps/libm-i387/e_asinhf.S: Likewise.
	* sysdeps/libm-i387/e_asinhl.S: Likewise.

	* sysdeps/libm-ieee754/s_asinhf.c: Tweak a bit.  Use lower levels
	for simplified handling.

	* sysdeps/unix/sysv/linux/syscalls.list: Add query_module.

Sun Dec 22 01:39:29 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* inet/rcmd.c (rcmd): Set h_errno before calling herror.
	* inet/rexec.c (rexec): Likewise.

Sat Dec 21 21:47:08 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/m68k/setjmp.c (__setjmp): Make it really
	compatible.

Sun Dec 22 03:23:33 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-i387/s_log1p.S: Use fyl2xp1 for numbers in range
	-0.29 <= x <= 0.29, otherwise the old method.
	* sysdeps/libm-i387/s_log1pf.S: Likewise.
	* sysdeps/libm-i387/s_log1pl.S: Likewise.

1 files changed, 26 insertions, 25 deletions

diff --git a/features.h b/features.h
index 4bcff2a190..f1f248cc68 100644
--- a/features.h
+++ b/features.h
@@ -23,14 +23,14 @@
 /* These are defined by the user (or the compiler)
    to specify the desired environment:
 
-   __STRICT_ANSI__	ANSI Standard C.
+   __STRICT_ANSI__	ISO Standard C.
    _POSIX_SOURCE	IEEE Std 1003.1.
    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
 			if >=199309L, add IEEE Std 1003.1b-1993
    _XOPEN_SOURCE	Includes POSIX and XPG things.
    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
-   _BSD_SOURCE		ANSI, POSIX, and 4.3BSD things.
-   _SVID_SOURCE		ANSI, POSIX, and SVID things.
+   _BSD_SOURCE		ISO C, POSIX, and 4.3BSD things.
+   _SVID_SOURCE		ISO C, POSIX, and SVID things.
    _GNU_SOURCE		All of the above, plus GNU extensions.
    _REENTRANT		Select additionally reentrant object.
    _THREAD_SAFE		Same as _REENTRANT, often used by other systems.
@@ -39,7 +39,7 @@
    If none of these are defined, the default is all but _GNU_SOURCE.
    If more than one of these are defined, they accumulate.
    For example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE
-   together give you ANSI C, 1003.1, and 1003.2, but nothing else.
+   together give you ISO C, 1003.1, and 1003.2, but nothing else.
 
    These are defined by this file and are used by the
    header files to decide what to declare or define:
@@ -56,7 +56,10 @@
    __USE_REENTRANT	Define reentrant/thread-safe *_r functions.
    __FAVOR_BSD		Favor 4.3BSD things in cases of conflict.
 
-   The macro `__GNU_LIBRARY__' is defined by this file unconditionally.
+   The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+   defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+   only for compatibility.  All new code should use the other symbols
+   to test for features.
 
    All macros listed above as possibly being defined by this file are
    explicitly undefined if they are not explicitly defined.
@@ -85,15 +88,15 @@
 # define __KERNEL_STRICT_NAMES
 #endif
 
-/* Always use ANSI things.  */
+/* Always use ISO C things.  */
 #define	__USE_ANSI	1
 
 
 /* If _BSD_SOURCE was defined by the user, favor BSD over POSIX.  */
-#if defined (_BSD_SOURCE) && \
-    !(defined (_POSIX_SOURCE) || defined (_POSIX_C_SOURCE) || \
-      defined (_XOPEN_SOURCE) || defined (_XOPEN_SOURCE_DEFINED) || \
-      defined (_GNU_SOURCE) || defined (_SVID_SOURCE))
+#if defined _BSD_SOURCE && \
+    !(defined _POSIX_SOURCE || defined _POSIX_C_SOURCE || \
+      defined _XOPEN_SOURCE || defined _XOPEN_SOURCE_DEFINED || \
+      defined _GNU_SOURCE || defined _SVID_SOURCE)
 # define __FAVOR_BSD	1
 #endif
 
@@ -115,37 +118,35 @@
 
 /* If nothing (other than _GNU_SOURCE) is defined,
    define _BSD_SOURCE and _SVID_SOURCE.  */
-#if (!defined (__STRICT_ANSI__) && !defined (_POSIX_SOURCE) && \
-     !defined (_POSIX_C_SOURCE) && !defined (_XOPEN_SOURCE) && \
-     !defined (_XOPEN_SOURCE_EXTENDED) && !defined (_BSD_SOURCE) && \
-     !defined (_SVID_SOURCE))
+#if (!defined __STRICT_ANSI__ && !defined _POSIX_SOURCE && \
+     !defined _POSIX_C_SOURCE && !defined _XOPEN_SOURCE && \
+     !defined _XOPEN_SOURCE_EXTENDED && !defined _BSD_SOURCE && \
+     !defined _SVID_SOURCE)
 #define	_BSD_SOURCE	1
 #define	_SVID_SOURCE	1
 #endif
 
 /* If none of the ANSI/POSIX macros are defined, use POSIX.1 and POSIX.2
    (and IEEE Std 1003.1b-1993 unless _XOPEN_SOURCE is defined).  */
-#if (!defined (__STRICT_ANSI__) && !defined (_POSIX_SOURCE) && \
-     !defined (_POSIX_C_SOURCE))
+#if (!defined __STRICT_ANSI__ && !defined _POSIX_SOURCE && \
+     !defined _POSIX_C_SOURCE)
 #define	_POSIX_SOURCE	1
-#if defined(_XOPEN_SOURCE)
+#ifdef _XOPEN_SOURCE
 #define	_POSIX_C_SOURCE	2
 #else
 #define	_POSIX_C_SOURCE	199309L
 #endif
 #endif
 
-#if	(defined (_POSIX_SOURCE) || _POSIX_C_SOURCE >= 1 || \
-	 defined (_XOPEN_SOURCE))
+#if defined _POSIX_SOURCE || _POSIX_C_SOURCE >= 1 || defined _XOPEN_SOURCE
 #define	__USE_POSIX	1
 #endif
 
-#if	(defined (_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 2 || \
-	 defined (_XOPEN_SOURCE))
+#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 2 || defined _XOPEN_SOURCE
 #define	__USE_POSIX2	1
 #endif
 
-#if	(defined (_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309L)
+#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 199309L
 #define	__USE_POSIX199309	1
 #endif
 
@@ -156,7 +157,7 @@
 #endif
 #endif
 
-#if defined (_BSD_SOURCE) || defined (_SVID_SOURCE)
+#if defined _BSD_SOURCE || defined _SVID_SOURCE
 #define	__USE_MISC	1
 #endif
 
@@ -172,7 +173,7 @@
 #define	__USE_GNU	1
 #endif
 
-#if defined (_REENTRANT) || defined (_THREAD_SAFE)
+#if defined _REENTRANT || defined _THREAD_SAFE
 #define __USE_REENTRANT	1
 #endif
 
@@ -192,7 +193,7 @@
 #define	__GLIBC_MINOR__	0
 
 
-#if	!defined (__GNUC__) || __GNUC__ < 2
+#if !defined __GNUC__ || __GNUC__ < 2
 /* In GCC version 2, (__extension__ EXPR) will not complain
    about GCC extensions used in EXPR under -ansi or -pedantic.  */
 #define	__extension__