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changeset 15905:53e09ee0d19a

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*printf: Fix for platforms where 'long double' == 'double'. * m4/printf.m4 (gl_PRINTF_INFINITE_LONG_DOUBLE): Require gl_LONG_DOUBLE_VS_DOUBLE. Don't blindly assume 80-bit 'long double'. * modules/dprintf-posix (Files): Add m4/math_h.m4. * modules/fprintf-posix (Files): Likewise. * modules/obstack-printf-posix (Files): Likewise. * modules/snprintf-posix (Files): Likewise. * modules/sprintf-posix (Files): Likewise. * modules/vasnprintf (Files): Likewise. * modules/vasnprintf-posix (Files): Likewise. * modules/vasprintf-posix (Files): Likewise. * modules/vdprintf-posix (Files): Likewise. * modules/vfprintf-posix (Files): Likewise. * modules/vsnprintf-posix (Files): Likewise. * modules/vsprintf-posix (Files): Likewise. * modules/unistdio/u8-vasnprintf (Files): Likewise. * modules/unistdio/u8-u8-vasnprintf (Files): Likewise. * modules/unistdio/u16-vasnprintf (Files): Likewise. * modules/unistdio/u16-u16-vasnprintf (Files): Likewise. * modules/unistdio/u32-vasnprintf (Files): Likewise. * modules/unistdio/u32-u32-vasnprintf (Files): Likewise. * modules/unistdio/ulc-vasnprintf (Files): Likewise.
author Bruno Haible <bruno@clisp.org>
date Sun, 09 Oct 2011 13:06:52 +0200
parents add96b15feb5
children 400649d35651
files ChangeLog m4/printf.m4 modules/dprintf-posix modules/fprintf-posix modules/obstack-printf-posix modules/snprintf-posix modules/sprintf-posix modules/unistdio/u16-u16-vasnprintf modules/unistdio/u16-vasnprintf modules/unistdio/u32-u32-vasnprintf modules/unistdio/u32-vasnprintf modules/unistdio/u8-u8-vasnprintf modules/unistdio/u8-vasnprintf modules/unistdio/ulc-vasnprintf modules/vasnprintf modules/vasnprintf-posix modules/vasprintf-posix modules/vdprintf-posix modules/vfprintf-posix modules/vsnprintf-posix modules/vsprintf-posix
diffstat 21 files changed, 45 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,28 @@
 2011-10-09  Bruno Haible  <bruno@clisp.org>
 
+	*printf: Fix for platforms where 'long double' == 'double'.
+	* m4/printf.m4 (gl_PRINTF_INFINITE_LONG_DOUBLE): Require
+	gl_LONG_DOUBLE_VS_DOUBLE. Don't blindly assume 80-bit 'long double'.
+	* modules/dprintf-posix (Files): Add m4/math_h.m4.
+	* modules/fprintf-posix (Files): Likewise.
+	* modules/obstack-printf-posix (Files): Likewise.
+	* modules/snprintf-posix (Files): Likewise.
+	* modules/sprintf-posix (Files): Likewise.
+	* modules/vasnprintf (Files): Likewise.
+	* modules/vasnprintf-posix (Files): Likewise.
+	* modules/vasprintf-posix (Files): Likewise.
+	* modules/vdprintf-posix (Files): Likewise.
+	* modules/vfprintf-posix (Files): Likewise.
+	* modules/vsnprintf-posix (Files): Likewise.
+	* modules/vsprintf-posix (Files): Likewise.
+	* modules/unistdio/u8-vasnprintf (Files): Likewise.
+	* modules/unistdio/u8-u8-vasnprintf (Files): Likewise.
+	* modules/unistdio/u16-vasnprintf (Files): Likewise.
+	* modules/unistdio/u16-u16-vasnprintf (Files): Likewise.
+	* modules/unistdio/u32-vasnprintf (Files): Likewise.
+	* modules/unistdio/u32-u32-vasnprintf (Files): Likewise.
+	* modules/unistdio/ulc-vasnprintf (Files): Likewise.
+
 	isnanl[-nolibm]: Fix for platforms where 'long double' == 'double'.
 	* lib/isnan.c (rpl_isnanl): Don't blindly assume 80-bit 'long double'.
 	* m4/isnanl.m4 (gl_PREREQ_ISNANL): Require gl_LONG_DOUBLE_VS_DOUBLE.
--- a/m4/printf.m4
+++ b/m4/printf.m4
@@ -1,4 +1,4 @@
-# printf.m4 serial 45
+# printf.m4 serial 46
 dnl Copyright (C) 2003, 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -251,6 +251,7 @@
   AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
   AC_REQUIRE([AC_PROG_CC])
   AC_REQUIRE([gl_BIGENDIAN])
+  AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])
   AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
   dnl The user can set or unset the variable gl_printf_safe to indicate
   dnl that he wishes a safe handling of non-IEEE-754 'long double' values.
@@ -321,7 +322,7 @@
   if (sprintf (buf, "%Lg", zeroL / zeroL) < 0
       || !strisnan (buf, 0, strlen (buf)))
     result |= 1;
-#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
 /* Representation of an 80-bit 'long double' as an initializer for a sequence
    of 'unsigned int' words.  */
 # ifdef WORDS_BIGENDIAN
--- a/modules/dprintf-posix
+++ b/modules/dprintf-posix
@@ -11,6 +11,7 @@
 Files:
 m4/dprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 dprintf
--- a/modules/fprintf-posix
+++ b/modules/fprintf-posix
@@ -11,6 +11,7 @@
 lib/fprintf.c
 m4/fprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 stdio
--- a/modules/obstack-printf-posix
+++ b/modules/obstack-printf-posix
@@ -10,6 +10,7 @@
 Files:
 m4/obstack-printf.m4
 m4/obstack-printf-posix.m4
+m4/math_h.m4
 lib/obstack_printf.c
 
 Depends-on:
--- a/modules/snprintf-posix
+++ b/modules/snprintf-posix
@@ -11,6 +11,7 @@
 Files:
 m4/snprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 snprintf
--- a/modules/sprintf-posix
+++ b/modules/sprintf-posix
@@ -11,6 +11,7 @@
 lib/sprintf.c
 m4/sprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 stdio
--- a/modules/unistdio/u16-u16-vasnprintf
+++ b/modules/unistdio/u16-u16-vasnprintf
@@ -6,6 +6,7 @@
 lib/vasnprintf.c
 m4/vasnprintf.m4
 m4/printf.m4
+m4/math_h.m4
 m4/wchar_t.m4
 m4/wint_t.m4
 m4/longlong.m4
--- a/modules/unistdio/u16-vasnprintf
+++ b/modules/unistdio/u16-vasnprintf
@@ -6,6 +6,7 @@
 lib/vasnprintf.c
 m4/vasnprintf.m4
 m4/printf.m4
+m4/math_h.m4
 m4/wchar_t.m4
 m4/wint_t.m4
 m4/longlong.m4
--- a/modules/unistdio/u32-u32-vasnprintf
+++ b/modules/unistdio/u32-u32-vasnprintf
@@ -6,6 +6,7 @@
 lib/vasnprintf.c
 m4/vasnprintf.m4
 m4/printf.m4
+m4/math_h.m4
 m4/wchar_t.m4
 m4/wint_t.m4
 m4/longlong.m4
--- a/modules/unistdio/u32-vasnprintf
+++ b/modules/unistdio/u32-vasnprintf
@@ -6,6 +6,7 @@
 lib/vasnprintf.c
 m4/vasnprintf.m4
 m4/printf.m4
+m4/math_h.m4
 m4/wchar_t.m4
 m4/wint_t.m4
 m4/longlong.m4
--- a/modules/unistdio/u8-u8-vasnprintf
+++ b/modules/unistdio/u8-u8-vasnprintf
@@ -6,6 +6,7 @@
 lib/vasnprintf.c
 m4/vasnprintf.m4
 m4/printf.m4
+m4/math_h.m4
 m4/wchar_t.m4
 m4/wint_t.m4
 m4/longlong.m4
--- a/modules/unistdio/u8-vasnprintf
+++ b/modules/unistdio/u8-vasnprintf
@@ -6,6 +6,7 @@
 lib/vasnprintf.c
 m4/vasnprintf.m4
 m4/printf.m4
+m4/math_h.m4
 m4/wchar_t.m4
 m4/wint_t.m4
 m4/longlong.m4
--- a/modules/unistdio/ulc-vasnprintf
+++ b/modules/unistdio/ulc-vasnprintf
@@ -6,6 +6,7 @@
 lib/vasnprintf.c
 m4/vasnprintf.m4
 m4/printf.m4
+m4/math_h.m4
 m4/wchar_t.m4
 m4/wint_t.m4
 m4/longlong.m4
--- a/modules/vasnprintf
+++ b/modules/vasnprintf
@@ -18,6 +18,7 @@
 m4/inttypes_h.m4
 m4/vasnprintf.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 alloca-opt
--- a/modules/vasnprintf-posix
+++ b/modules/vasnprintf-posix
@@ -11,6 +11,7 @@
 Files:
 m4/vasnprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 vasnprintf
--- a/modules/vasprintf-posix
+++ b/modules/vasprintf-posix
@@ -10,6 +10,7 @@
 Files:
 m4/vasprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 vasprintf
--- a/modules/vdprintf-posix
+++ b/modules/vdprintf-posix
@@ -11,6 +11,7 @@
 Files:
 m4/vdprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 vdprintf
--- a/modules/vfprintf-posix
+++ b/modules/vfprintf-posix
@@ -11,6 +11,7 @@
 lib/vfprintf.c
 m4/vfprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 stdio
--- a/modules/vsnprintf-posix
+++ b/modules/vsnprintf-posix
@@ -11,6 +11,7 @@
 Files:
 m4/vsnprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 vsnprintf
--- a/modules/vsprintf-posix
+++ b/modules/vsprintf-posix
@@ -11,6 +11,7 @@
 lib/vsprintf.c
 m4/vsprintf-posix.m4
 m4/printf.m4
+m4/math_h.m4
 
 Depends-on:
 stdio