update from main archive 960829cvs/libc-960830

Fri Aug 30 01:26:44 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/i386/Dist: Add close.S.
	* sysdeps/unix/sysv/linux/m68k/Dist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/Dist: Likewise.

	* version.c: Add comment about where to report bugs to.
	* catgets/gencat.c (usage): Likewise.
	* db/makedb.c (usage): Likewise.
	* locale/programs/locale.c (usage): Likewise.
	* locale/programs/localedef.c (usage): Likewise.

	* manual/socket.texi: A little bit better wording.

Thu Aug 29 18:03:06 1996  Ulrich Drepper  <drepper@cygnus.com>

	* Makerules: Make sure directory exists before generating stamp file.
	(BUILD_CFLAGS): Always refer to using $(..).
	* manual/Makefile: Make sure directory exists before generating
 	stamp file.
	(make-target-directory): Add macro definition.
	* sysdeps/generic/Makefile: Make sure directory exists before
 	generating stamp file.

	* Makefile (distribute): Add autolock.sh.  Reported by Fila Kolodny.

Tue Aug 27 10:06:22 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	When compiling in separate directory put objects into
	subdirectories matching the source layout.
	* Makeconfig (objpfx) [ifdef objdir]: Append $(subdir).
	When looking for configparms try in $(common-objpfx).
	Use $(common-objpfx)SUBDIR to find objects from other subdirectory
	builds.
	* Makerules: Add $(objpfx) to vpath list.
	(make-dummy-dep): Use $(common-objpfx) to avoid creating dummy.d
	more than once.  All uses in dependency lists changed.
	(+make-deps): Make target directory.
	(sed-remove-objpfx): Substitute $(common-objpfx).
	(do-ar, build-extra-lib, $(common-objpfx)stub-$(subdir)): Use
	$(objpfx) instead of $(objdir) for cd command.
	(O%-lib): Always find libc relative to $(..).
	(subdir-stamps): Collect stamp files from subdirs.
	(common-mostlyclean): Remove stub file in $(common-objpfx).
	* MakeTAGS ($P/siglist.pot): Find siglist.c in stdio-common.
	* Rules (dep-dummy-lib): Use $(common-objpfx) to avoid creating to
	more than once.
	($(objpfx)dummy.c, $(objpfx)empty.c): Change target name to use
	$(common-objfpx).  All uses in dependency lists changed.
	(generated): Prepend $(..) to names.
	* bare/Makefile ($(objpfx)lib$(config-vendor).a): Remove $(objpfx)
	from $@.
	* nss/Makefile ($(objpfx)libnss_dns.so, $(objpfx)libnss_db.so):
	Use $(common-objpfx) instead of $(..) in dependencies.
	* sysdeps/mach/Makefile (mach-objpfx): Unconditionally use
	$(common-objpfx) instead of $(..) and (objpfx).
	* sysdeps/mach/hurd/Makefile (hurd-objpfx): Likewise.
	(rpath-link): Likewise.
	(rpcuserlibs): Likewise.
	* sysdeps/unix/Makefile [$(subdir) = stdio-common]: Check for
	errlist.c in $(objpfx), not $(common-objpfx).
	($(common-objpfx)s-proto.d): Special rule not covered by pattern
	rule.
	* sysdeps/unix/make-syscalls.sh: Make syscall rules depending on
	s-proto.d in $(common-objpfx), not $(objpfx).

Thu Aug 29 17:45:49 1996  Ulrich Drepper  <drepper@cygnus.com>

	* nss/nsswitch.c (nss_dlerror_run): Free returned error
	string.

Thu Aug 29 15:53:33 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-ieee754/e_acoshl.c: New file. `long double'
 	implementation.
	* sysdeps/libm-ieee754/e_atanhl.c: Likewise.
	* sysdeps/libm-ieee754/e_remainderl.c: Likewise.
	* sysdeps/libm-ieee754/e_scalbl.c: Likewise.
	* sysdeps/libm-ieee754/s_asinhl.c: Likewise.
	* sysdeps/libm-ieee754/s_cosl.c: Likewise.
	* sysdeps/libm-ieee754/s_sinl.c: Likewise.
	* sysdeps/libm-ieee754/s_tanhl.c: Likewise.
	* sysdeps/libm-ieee754/s_tanl.c: Likewise.

	* stdio-common/printf_fp.c (__printf_fp): Use default value '.' if

1 files changed, 72 insertions, 0 deletions

diff --git a/sysdeps/libm-ieee754/e_acoshl.c b/sysdeps/libm-ieee754/e_acoshl.c
new file mode 100644
index 0000000000..8af7c27aa7
--- /dev/null
+++ b/sysdeps/libm-ieee754/e_acoshl.c
@@ -0,0 +1,72 @@
+/* e_acoshl.c -- long double version of e_acosh.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/* __ieee754_acoshl(x)
+ * Method :
+ *	Based on
+ *		acoshl(x) = logl [ x + sqrtl(x*x-1) ]
+ *	we have
+ *		acoshl(x) := logl(x)+ln2,	if x is large; else
+ *		acoshl(x) := logl(2x-1/(sqrtl(x*x-1)+x)) if x>2; else
+ *		acoshl(x) := log1pl(t+sqrtl(2.0*t+t*t)); where t=x-1.
+ *
+ * Special cases:
+ *	acoshl(x) is NaN with signal if x<1.
+ *	acoshl(NaN) is NaN without signal.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const long double
+#else
+static long double
+#endif
+one	= 1.0,
+ln2	= 6.931471805599453094287e-01L; /* 0x3FFE, 0xB17217F7, 0xD1CF79AC */
+
+#ifdef __STDC__
+	long double __ieee754_acoshl(long double x)
+#else
+	long double __ieee754_acoshl(x)
+	long double x;
+#endif
+{
+	long double t;
+	u_int32_t se,i0,i1;
+	EXTRACT_LDOUBLE_WORDS(se,i0,i1,x);
+	if(se<0x3fff) {			/* x < 1 */
+	    return (x-x)/(x-x);
+	} else if(hx >=0x401b) {	/* x > 2**28 */
+	    if(hx >=0x7fff) {		/* x is inf of NaN */
+	        return x+x;
+	    } else
+		return __ieee754_logl(x)+ln2;	/* acoshl(huge)=logl(2x) */
+	} else if(((se-0x3fff)|i0|i1)==0) {
+	    return 0.0;			/* acosh(1) = 0 */
+	} else if (hx > 0x4000) {	/* 2**28 > x > 2 */
+	    t=x*x;
+	    return __ieee754_logl(2.0*x-one/(x+__ieee754_sqrtl(t-one)));
+	} else {			/* 1<x<2 */
+	    t = x-one;
+	    return __log1pl(t+__sqrtl(2.0*t+t*t));
+	}
+}