summaryrefslogtreecommitdiff
path: root/gnulib-m4/stdint.m4
diff options
context:
space:
mode:
Diffstat (limited to 'gnulib-m4/stdint.m4')
-rw-r--r--gnulib-m4/stdint.m452
1 files changed, 32 insertions, 20 deletions
diff --git a/gnulib-m4/stdint.m4 b/gnulib-m4/stdint.m4
index 1cc57e6e..4011a494 100644
--- a/gnulib-m4/stdint.m4
+++ b/gnulib-m4/stdint.m4
@@ -1,5 +1,5 @@
-# stdint.m4 serial 34
-dnl Copyright (C) 2001-2010 Free Software Foundation, Inc.
+# stdint.m4 serial 43
+dnl Copyright (C) 2001-2015 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.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 03:27:13 +0000