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OSF/4.0D strtold

From: Ralf Wildenhues
Subject: OSF/4.0D strtold
Date: Sat, 27 May 2006 21:47:28 +0200
User-agent: Mutt/1.5.9i

Tru64 UNIX 4.0D doesn't provide strtold (in the standard library at
least), but /usr/include.dtk/stdlib.h provides a declaration.  Thus the
compile test in c-strtod.m4 fails.  This causes a link failure for
coreutils-5.96 printf.  The patch below seems to fix this (but I don't
know whether it should rather be searched for in some library).

| configure:12086: checking whether strtold conforms to C99
| configure:12118: cc -o conftest -g   conftest.c  >&5
| cc: Info: conftest.c, line 141: In this declaration, type long double has the 
same representation as type double on this platform. (longdoublenyi)
|              static long double (*p) (char const *, char **) = strtold;
| --------------------^


        * c-strtod.m4 (gl_C99_STRTOLD): Use a link test rather than a
        compile test, for Tru64 4.0D.

Index: m4/c-strtod.m4
RCS file: /cvsroot/gnulib/gnulib/m4/c-strtod.m4,v
retrieving revision 1.4
diff -u -r1.4 c-strtod.m4
--- m4/c-strtod.m4      21 Mar 2005 22:06:27 -0000      1.4
+++ m4/c-strtod.m4      27 May 2006 19:36:23 -0000
@@ -1,6 +1,6 @@
 # c-strtod.m4 serial 6
-# Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+# Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -11,7 +11,7 @@
   AC_CACHE_CHECK([whether strtold conforms to C99],
           [[/* On HP-UX before 11.23, strtold returns a struct instead of
                long double.  Reject implementations like that, by requiring

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