-# stdint.m4 serial 27
-dnl Copyright (C) 2001-2007 Free Software Foundation, Inc.
+# stdint.m4 serial 43
+dnl Copyright (C) 2001-2014 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.
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
+ AC_PREREQ([2.59])dnl
dnl Check for long long int and unsigned long long int.
AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
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
[gl_cv_header_working_stdint_h],
[gl_cv_header_working_stdint_h=no
AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM([gl_STDINT_INCLUDES
- [
-#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 */
+ AC_LANG_PROGRAM([[
#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;
#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)
int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1;
};
]])],
- [gl_cv_header_working_stdint_h=yes])])
+ [dnl Determine whether the various *_MIN, *_MAX macros are usable
+ dnl in preprocessor expression. We could do it by compiling a test
+ dnl program for each of these macros. It is faster to run a program
+ dnl that inspects the macro expansion.
+ dnl This detects a bug on HP-UX 11.23/ia64.
+ AC_RUN_IFELSE([
+ AC_LANG_PROGRAM([[
+#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
+#include <stdint.h>
+]
+gl_STDINT_INCLUDES
+[
+#include <stdio.h>
+#include <string.h>
+#define MVAL(macro) MVAL1(macro)
+#define MVAL1(expression) #expression
+static const char *macro_values[] =
+ {
+#ifdef INT8_MAX
+ MVAL (INT8_MAX),
+#endif
+#ifdef INT16_MAX
+ MVAL (INT16_MAX),
+#endif
+#ifdef INT32_MAX
+ MVAL (INT32_MAX),
+#endif
+#ifdef INT64_MAX
+ MVAL (INT64_MAX),
+#endif
+#ifdef UINT8_MAX
+ MVAL (UINT8_MAX),
+#endif
+#ifdef UINT16_MAX
+ MVAL (UINT16_MAX),
+#endif
+#ifdef UINT32_MAX
+ MVAL (UINT32_MAX),
+#endif
+#ifdef UINT64_MAX
+ MVAL (UINT64_MAX),
+#endif
+ NULL
+ };
+]], [[
+ const char **mv;
+ for (mv = macro_values; *mv != NULL; mv++)
+ {
+ const char *value = *mv;
+ /* Test whether it looks like a cast expression. */
+ if (strncmp (value, "((unsigned int)"/*)*/, 15) == 0
+ || strncmp (value, "((unsigned short)"/*)*/, 17) == 0
+ || strncmp (value, "((unsigned char)"/*)*/, 16) == 0
+ || strncmp (value, "((int)"/*)*/, 6) == 0
+ || strncmp (value, "((signed short)"/*)*/, 15) == 0
+ || strncmp (value, "((signed char)"/*)*/, 14) == 0)
+ return mv - macro_values + 1;
+ }
+ return 0;
+]])],
+ [gl_cv_header_working_stdint_h=yes],
+ [],
+ [dnl When cross-compiling, assume it works.
+ gl_cv_header_working_stdint_h=yes
+ ])
+ ])
+ ])
fi
if test "$gl_cv_header_working_stdint_h" = yes; then
STDINT_H=
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)
+ AC_SUBST([STDINT_H])
+ AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"])
])
dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES)
dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
dnl config.h.in,
dnl - extra AC_SUBST calls, so that the right substitutions are made.
- AC_FOREACH([gltype], [$1],
- [AH_TEMPLATE([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
+ m4_foreach_w([gltype], [$1],
+ [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}],
AC_DEFINE_UNQUOTED([BITSIZEOF_${GLTYPE}], [$result])
eval BITSIZEOF_${GLTYPE}=\$result
done
- AC_FOREACH([gltype], [$1],
- [AC_SUBST([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
+ m4_foreach_w([gltype], [$1],
+ [AC_SUBST([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
])
dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES)
dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
dnl config.h.in,
dnl - extra AC_SUBST calls, so that the right substitutions are made.
- AC_FOREACH([gltype], [$1],
- [AH_TEMPLATE([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
+ m4_foreach_w([gltype], [$1],
+ [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],
eval result=\$gl_cv_type_${gltype}_signed
GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
if test "$result" = yes; then
- AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], 1)
+ AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], [1])
eval HAVE_SIGNED_${GLTYPE}=1
else
eval HAVE_SIGNED_${GLTYPE}=0
fi
done
- AC_FOREACH([gltype], [$1],
- [AC_SUBST([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
+ m4_foreach_w([gltype], [$1],
+ [AC_SUBST([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
])
dnl gl_INTEGER_TYPE_SUFFIX(TYPES, INCLUDES)
dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
dnl config.h.in,
dnl - extra AC_SUBST calls, so that the right substitutions are made.
- AC_FOREACH([gltype], [$1],
- [AH_TEMPLATE(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX],
+ m4_foreach_w([gltype], [$1],
+ [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 $1 ; do
for glsuf in "$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';;
+ 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
+ [AC_LANG_PROGRAM([$2[
extern $gltype foo;
- extern $gltype1 foo;])],
+ extern $gltype1 foo;]])],
[eval gl_cv_type_${gltype}_suffix=\$glsuf])
eval result=\$gl_cv_type_${gltype}_suffix
test "$result" != no && break
eval result=\$gl_cv_type_${gltype}_suffix
test "$result" = no && result=
eval ${GLTYPE}_SUFFIX=\$result
- AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], $result)
+ AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], [$result])
done
- AC_FOREACH([gltype], [$1],
- [AC_SUBST(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])])
+ m4_foreach_w([gltype], [$1],
+ [AC_SUBST(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])])
])
dnl gl_STDINT_INCLUDES
dnl gl_STDINT_TYPE_PROPERTIES
dnl Compute HAVE_SIGNED_t, BITSIZEOF_t and t_SUFFIX, for all the types t
-dnl of interest to stdint_.h.
+dnl of interest to stdint.in.h.
AC_DEFUN([gl_STDINT_TYPE_PROPERTIES],
[
- gl_STDINT_BITSIZEOF([ptrdiff_t sig_atomic_t size_t wchar_t wint_t],
+ AC_REQUIRE([gl_MULTIARCH])
+ if test $APPLE_UNIVERSAL_BUILD = 0; then
+ gl_STDINT_BITSIZEOF([ptrdiff_t size_t],
+ [gl_STDINT_INCLUDES])
+ fi
+ gl_STDINT_BITSIZEOF([sig_atomic_t wchar_t wint_t],
[gl_STDINT_INCLUDES])
gl_CHECK_TYPES_SIGNED([sig_atomic_t wchar_t wint_t],
[gl_STDINT_INCLUDES])
gl_cv_type_ptrdiff_t_signed=yes
gl_cv_type_size_t_signed=no
- gl_INTEGER_TYPE_SUFFIX([ptrdiff_t sig_atomic_t size_t wchar_t wint_t],
+ if test $APPLE_UNIVERSAL_BUILD = 0; then
+ gl_INTEGER_TYPE_SUFFIX([ptrdiff_t size_t],
+ [gl_STDINT_INCLUDES])
+ 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.
projects / gnulib.git / blobdiff