-# stdint.m4 serial 21
-dnl Copyright (C) 2001-2002, 2004-2006 Free Software Foundation, Inc.
+# stdint.m4 serial 28
+dnl Copyright (C) 2001-2007 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.
fi
AC_SUBST([HAVE_UNSIGNED_LONG_LONG_INT])
- dnl Check for <wchar.h>.
- 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
fi
AC_SUBST([HAVE_SYS_TYPES_H])
- dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_stdint_h.
+ gl_CHECK_NEXT_HEADERS([stdint.h])
if test $ac_cv_header_stdint_h = yes; then
- gl_ABSOLUTE_HEADER([stdint.h])
- ABSOLUTE_STDINT_H=\"$gl_cv_absolute_stdint_h\"
HAVE_STDINT_H=1
else
- ABSOLUTE_STDINT_H=\"no/such/file/stdint.h\"
HAVE_STDINT_H=0
fi
- AC_SUBST([ABSOLUTE_STDINT_H])
AC_SUBST([HAVE_STDINT_H])
- dnl Now see whether we need a substitute <stdint.h>. Use
- dnl ABSOLUTE_STDINT_H, not <stdint.h>, so that it also works during
- dnl a "config.status --recheck" if a stdint.h has been
- dnl created in the build directory.
+ dnl Now see whether we need a substitute <stdint.h>.
if test $ac_cv_header_stdint_h = yes; then
AC_CACHE_CHECK([whether stdint.h conforms to C99],
[gl_cv_header_working_stdint_h],
[gl_cv_header_working_stdint_h=no
AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM([[
-#include <stddef.h>
+ 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 */
-#include ABSOLUTE_STDINT_H
+#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>. */
+#if !(defined WCHAR_MIN && defined WCHAR_MAX)
+#error "WCHAR_MIN, WCHAR_MAX not defined in <stdint.h>"
+#endif
+]
+gl_STDINT_INCLUDES
+[
#ifdef INT8_MAX
int8_t a1 = INT8_MAX;
int8_t a1min = INT8_MIN;
#endif
intmax_t i = INTMAX_MAX;
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)))
+#define TYPE_MAXIMUM(t) \
+ ((t) ((t) 0 < (t) -1 ? (t) -1 : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
struct s {
- int check_PTRDIFF: PTRDIFF_MIN < 0 && 0 < PTRDIFF_MAX ? 1 : -1;
- int check_SIG_ATOMIC: SIG_ATOMIC_MIN <= 0 && 0 < SIG_ATOMIC_MAX ? 1 : -1;
- int check_SIZE: 0 < SIZE_MAX ? 1 : -1;
- int check_WCHAR: WCHAR_MIN <= 0 && 0 < WCHAR_MAX ? 1 : -1;
- int check_WINT: WINT_MIN <= 0 && 0 < WINT_MAX ? 1 : -1;
+ int check_PTRDIFF:
+ PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t)
+ && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t)
+ ? 1 : -1;
+ /* Detect bug in FreeBSD 6.0 / ia64. */
+ int check_SIG_ATOMIC:
+ SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t)
+ && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t)
+ ? 1 : -1;
+ int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1;
+ int check_WCHAR:
+ WCHAR_MIN == TYPE_MINIMUM (wchar_t)
+ && WCHAR_MAX == TYPE_MAXIMUM (wchar_t)
+ ? 1 : -1;
+ /* Detect bug in mingw. */
+ int check_WINT:
+ WINT_MIN == TYPE_MINIMUM (wint_t)
+ && WINT_MAX == TYPE_MAXIMUM (wint_t)
+ ? 1 : -1;
/* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others. */
int check_UINT8_C:
- (-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1;
+ (-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1;
int check_UINT16_C:
- (-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1;
+ (-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1;
/* Detect bugs in OpenBSD 3.9 stdint.h. */
#ifdef UINT8_MAX
int check_uintmax: (uintmax_t) -1 == UINTMAX_MAX ? 1 : -1;
int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1;
};
- ]])],
+ ]])],
[gl_cv_header_working_stdint_h=yes])])
fi
if test "$gl_cv_header_working_stdint_h" = yes; then
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
for gltype in $1 ; do
AC_CACHE_CHECK([for bit size of $gltype], [gl_cv_bitsizeof_${gltype}],
[AC_COMPUTE_INT([result], [sizeof ($gltype) * CHAR_BIT],
- [$2
+ [$2
#include <limits.h>], [result=unknown])
eval gl_cv_bitsizeof_${gltype}=\$result
])
AC_FOREACH([gltype], [$1],
[AH_TEMPLATE(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX],
[Define to l, ll, u, ul, ull, etc., as suitable for
- constants of type ']gltype['.])])
+ constants of type ']gltype['.])])
for gltype in $1 ; do
AC_CACHE_CHECK([for $gltype integer literal suffix],
[gl_cv_type_${gltype}_suffix],
[eval gl_cv_type_${gltype}_suffix=no
eval result=\$gl_cv_type_${gltype}_signed
if test "$result" = yes; then
- glsufu=
+ glsufu=
else
- glsufu=u
+ glsufu=u
fi
for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do
- case $glsuf in
- '') gltype1='int';;
- l) gltype1='long int';;
- ll) gltype1='long long int';;
- i64) gltype1='__int64';;
- u) gltype1='unsigned int';;
- ul) gltype1='unsigned long int';;
- ull) gltype1='unsigned long long int';;
- ui64)gltype1='unsigned __int64';;
- esac
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([$2
- extern $gltype foo;
- extern $gltype1 foo;])],
- [eval gl_cv_type_${gltype}_suffix=\$glsuf])
- eval result=\$gl_cv_type_${gltype}_suffix
- test "$result" != no && break
+ case $glsuf in
+ '') gltype1='int';;
+ l) gltype1='long int';;
+ ll) gltype1='long long int';;
+ i64) gltype1='__int64';;
+ u) gltype1='unsigned int';;
+ ul) gltype1='unsigned long int';;
+ ull) gltype1='unsigned long long int';;
+ ui64)gltype1='unsigned __int64';;
+ esac
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([$2
+ extern $gltype foo;
+ extern $gltype1 foo;])],
+ [eval gl_cv_type_${gltype}_suffix=\$glsuf])
+ eval result=\$gl_cv_type_${gltype}_suffix
+ test "$result" != no && break
done])
GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
eval result=\$gl_cv_type_${gltype}_suffix
dnl gl_STDINT_INCLUDES
AC_DEFUN([gl_STDINT_INCLUDES],
[[
+ /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
#include <stddef.h>
#include <signal.h>
#if HAVE_WCHAR_H
- /* BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
- <wchar.h>. */
# include <stdio.h>
# include <time.h>
# include <wchar.h>
m4_ifdef([AC_COMPUTE_INT], [], [
AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])])
])
+
+# Hey Emacs!
+# Local Variables:
+# indent-tabs-mode: nil
+# End: