Merge GDB 7.5.1

gdb/gnulib/import/m4/stdint.m4

Index: gdb/gnulib/import/m4/stdint.m4
diff --git a/gdb/gnulib/m4/stdint.m4 b/gdb/gnulib/import/m4/stdint.m4
similarity index 89%
rename from gdb/gnulib/m4/stdint.m4
rename to gdb/gnulib/import/m4/stdint.m4
index 9a588de347e4d27dae6302afd8b2ab07e7809760..28d342ea233527ce1676208f176137f4104a1407 100644
--- a/gdb/gnulib/m4/stdint.m4
+++ b/gdb/gnulib/import/m4/stdint.m4
@@ -1,5 +1,5 @@
-# stdint.m4 serial 34
-dnl Copyright (C) 2001-2011 Free Software Foundation, Inc.
+# stdint.m4 serial 43
+dnl Copyright (C) 2001-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -7,7 +7,7 @@ dnl with or without modifications, as long as this notice is preserved.
 dnl From Paul Eggert and Bruno Haible.
 dnl Test whether <stdint.h> is supported or must be substituted.
 
-AC_DEFUN([gl_STDINT_H],
+AC_DEFUN_ONCE([gl_STDINT_H],
 [
   AC_PREREQ([2.59])dnl
 
@@ -27,6 +27,15 @@ AC_DEFUN([gl_STDINT_H],
   fi
   AC_SUBST([HAVE_UNSIGNED_LONG_LONG_INT])
 
+  dnl Check for <wchar.h>, in the same way as gl_WCHAR_H does.
+  AC_CHECK_HEADERS_ONCE([wchar.h])
+  if test $ac_cv_header_wchar_h = yes; then
+    HAVE_WCHAR_H=1
+  else
+    HAVE_WCHAR_H=0
+  fi
+  AC_SUBST([HAVE_WCHAR_H])
+
   dnl Check for <inttypes.h>.
   dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h.
   if test $ac_cv_header_inttypes_h = yes; then
@@ -60,8 +69,6 @@ AC_DEFUN([gl_STDINT_H],
       [gl_cv_header_working_stdint_h=no
        AC_COMPILE_IFELSE([
          AC_LANG_PROGRAM([[
-#define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */
-#define __STDC_CONSTANT_MACROS 1 /* to make it work also in C++ mode */
 #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
 #include <stdint.h>
 /* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>.  */
@@ -145,9 +152,11 @@ uintmax_t j = UINTMAX_MAX;
 
 #include <limits.h> /* for CHAR_BIT */
 #define TYPE_MINIMUM(t) \
-  ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))
+  ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t)))
 #define TYPE_MAXIMUM(t) \
-  ((t) ((t) 0 < (t) -1 ? (t) -1 : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
+  ((t) ((t) 0 < (t) -1 \
+        ? (t) -1 \
+        : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
 struct s {
   int check_PTRDIFF:
       PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t)
@@ -208,8 +217,6 @@ struct s {
           dnl This detects a bug on HP-UX 11.23/ia64.
           AC_RUN_IFELSE([
             AC_LANG_PROGRAM([[
-#define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */
-#define __STDC_CONSTANT_MACROS 1 /* to make it work also in C++ mode */
 #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
 #include <stdint.h>
 ]
@@ -259,7 +266,7 @@ static const char *macro_values[] =
           || strncmp (value, "((int)"/*)*/, 6) == 0
           || strncmp (value, "((signed short)"/*)*/, 15) == 0
           || strncmp (value, "((signed char)"/*)*/, 14) == 0)
-        return 1;
+        return mv - macro_values + 1;
     }
   return 0;
 ]])],
@@ -290,14 +297,11 @@ static const char *macro_values[] =
     fi
     AC_SUBST([HAVE_SYS_BITYPES_H])
 
-    dnl Check for <wchar.h> (missing in Linux uClibc when built without wide
-    dnl character support).
-    AC_CHECK_HEADERS_ONCE([wchar.h])
-
     gl_STDINT_TYPE_PROPERTIES
     STDINT_H=stdint.h
   fi
   AC_SUBST([STDINT_H])
+  AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"])
 ])
 
 dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES)
@@ -309,7 +313,7 @@ AC_DEFUN([gl_STDINT_BITSIZEOF],
   dnl   config.h.in,
   dnl - extra AC_SUBST calls, so that the right substitutions are made.
   m4_foreach_w([gltype], [$1],
-    [AH_TEMPLATE([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
+    [AH_TEMPLATE([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
        [Define to the number of bits in type ']gltype['.])])
   for gltype in $1 ; do
     AC_CACHE_CHECK([for bit size of $gltype], [gl_cv_bitsizeof_${gltype}],
@@ -334,7 +338,7 @@ AC_DEFUN([gl_STDINT_BITSIZEOF],
     eval BITSIZEOF_${GLTYPE}=\$result
   done
   m4_foreach_w([gltype], [$1],
-    [AC_SUBST([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
+    [AC_SUBST([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
 ])
 
 dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES)
@@ -347,7 +351,7 @@ AC_DEFUN([gl_CHECK_TYPES_SIGNED],
   dnl   config.h.in,
   dnl - extra AC_SUBST calls, so that the right substitutions are made.
   m4_foreach_w([gltype], [$1],
-    [AH_TEMPLATE([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
+    [AH_TEMPLATE([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
        [Define to 1 if ']gltype[' is a signed integer type.])])
   for gltype in $1 ; do
     AC_CACHE_CHECK([whether $gltype is signed], [gl_cv_type_${gltype}_signed],
@@ -367,7 +371,7 @@ AC_DEFUN([gl_CHECK_TYPES_SIGNED],
     fi
   done
   m4_foreach_w([gltype], [$1],
-    [AC_SUBST([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
+    [AC_SUBST([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
 ])
 
 dnl gl_INTEGER_TYPE_SUFFIX(TYPES, INCLUDES)
@@ -380,7 +384,7 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX],
   dnl   config.h.in,
   dnl - extra AC_SUBST calls, so that the right substitutions are made.
   m4_foreach_w([gltype], [$1],
-    [AH_TEMPLATE(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX],
+    [AH_TEMPLATE(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX],
        [Define to l, ll, u, ul, ull, etc., as suitable for
         constants of type ']gltype['.])])
   for gltype in $1 ; do
@@ -419,7 +423,7 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX],
     AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], [$result])
   done
   m4_foreach_w([gltype], [$1],
-    [AC_SUBST(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])])
+    [AC_SUBST(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])])
 ])
 
 dnl gl_STDINT_INCLUDES
@@ -458,6 +462,14 @@ AC_DEFUN([gl_STDINT_TYPE_PROPERTIES],
   fi
   gl_INTEGER_TYPE_SUFFIX([sig_atomic_t wchar_t wint_t],
     [gl_STDINT_INCLUDES])
+
+  dnl If wint_t is smaller than 'int', it cannot satisfy the ISO C 99
+  dnl requirement that wint_t is "unchanged by default argument promotions".
+  dnl In this case gnulib's <wchar.h> and <wctype.h> override wint_t.
+  dnl Set the variable BITSIZEOF_WINT_T accordingly.
+  if test $BITSIZEOF_WINT_T -lt 32; then
+    BITSIZEOF_WINT_T=32
+  fi
 ])
 
 dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in.