-# stdint.m4 serial 34
-dnl Copyright (C) 2001-2009 Free Software Foundation, Inc.
+# stdint.m4 serial 53
+dnl Copyright (C) 2001-2018 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_PREREQ([2.61])
+
+AC_DEFUN_ONCE([gl_STDINT_H],
[
AC_PREREQ([2.59])dnl
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+
+ AC_REQUIRE([gl_LIMITS_H])
+ AC_REQUIRE([gt_TYPE_WINT_T])
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=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 */
+#define __STDC_CONSTANT_MACROS 1
+#define __STDC_LIMIT_MACROS 1
#include <stdint.h>
/* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>. */
#if !(defined WCHAR_MIN && defined WCHAR_MAX)
intmax_t i = INTMAX_MAX;
uintmax_t j = UINTMAX_MAX;
+/* Check that SIZE_MAX has the correct type, if possible. */
+#if 201112 <= __STDC_VERSION__
+int k = _Generic (SIZE_MAX, size_t: 0);
+#elif (2 <= __GNUC__ || defined __IBM__TYPEOF__ \
+ || (0x5110 <= __SUNPRO_C && !__STDC__))
+extern size_t k;
+extern __typeof__ (SIZE_MAX) k;
+#endif
+
#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)
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 */
+#define __STDC_CONSTANT_MACROS 1
+#define __STDC_LIMIT_MACROS 1
#include <stdint.h>
]
gl_STDINT_INCLUDES
|| 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;
]])],
[gl_cv_header_working_stdint_h=yes],
[],
- [dnl When cross-compiling, assume it works.
- gl_cv_header_working_stdint_h=yes
+ [case "$host_os" in
+ # Guess yes on native Windows.
+ mingw*) gl_cv_header_working_stdint_h="guessing yes" ;;
+ # In general, assume it works.
+ *) gl_cv_header_working_stdint_h="guessing yes" ;;
+ esac
])
])
])
fi
- if test "$gl_cv_header_working_stdint_h" = yes; then
- STDINT_H=
- else
- dnl Check for <sys/inttypes.h>, and for
- dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5).
- AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h])
- if test $ac_cv_header_sys_inttypes_h = yes; then
- HAVE_SYS_INTTYPES_H=1
- else
- HAVE_SYS_INTTYPES_H=0
- fi
- AC_SUBST([HAVE_SYS_INTTYPES_H])
- if test $ac_cv_header_sys_bitypes_h = yes; then
- HAVE_SYS_BITYPES_H=1
- else
- HAVE_SYS_BITYPES_H=0
- fi
- AC_SUBST([HAVE_SYS_BITYPES_H])
- dnl Check for <wchar.h> (missing in Linux uClibc when built without wide
- dnl character support).
- AC_CHECK_HEADERS_ONCE([wchar.h])
+ HAVE_C99_STDINT_H=0
+ HAVE_SYS_BITYPES_H=0
+ HAVE_SYS_INTTYPES_H=0
+ STDINT_H=stdint.h
+ case "$gl_cv_header_working_stdint_h" in
+ *yes)
+ HAVE_C99_STDINT_H=1
+ dnl Now see whether the system <stdint.h> works without
+ dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined.
+ AC_CACHE_CHECK([whether stdint.h predates C++11],
+ [gl_cv_header_stdint_predates_cxx11_h],
+ [gl_cv_header_stdint_predates_cxx11_h=yes
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
+#include <stdint.h>
+]
+gl_STDINT_INCLUDES
+[
+intmax_t im = INTMAX_MAX;
+int32_t i32 = INT32_C (0x7fffffff);
+ ]])],
+ [gl_cv_header_stdint_predates_cxx11_h=no])])
- gl_STDINT_TYPE_PROPERTIES
- STDINT_H=stdint.h
- fi
+ if test "$gl_cv_header_stdint_predates_cxx11_h" = yes; then
+ AC_DEFINE([__STDC_CONSTANT_MACROS], [1],
+ [Define to 1 if the system <stdint.h> predates C++11.])
+ AC_DEFINE([__STDC_LIMIT_MACROS], [1],
+ [Define to 1 if the system <stdint.h> predates C++11.])
+ fi
+ AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.],
+ [gl_cv_header_stdint_width],
+ [gl_cv_header_stdint_width=no
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[
+ /* Work if build is not clean. */
+ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1
+ #ifndef __STDC_WANT_IEC_60559_BFP_EXT__
+ #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
+ #endif
+ #include <stdint.h>
+ ]gl_STDINT_INCLUDES[
+ int iw = UINTMAX_WIDTH;
+ ]])],
+ [gl_cv_header_stdint_width=yes])])
+ if test "$gl_cv_header_stdint_width" = yes; then
+ STDINT_H=
+ fi
+ ;;
+ *)
+ dnl Check for <sys/inttypes.h>, and for
+ dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5).
+ AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h])
+ if test $ac_cv_header_sys_inttypes_h = yes; then
+ HAVE_SYS_INTTYPES_H=1
+ fi
+ if test $ac_cv_header_sys_bitypes_h = yes; then
+ HAVE_SYS_BITYPES_H=1
+ fi
+ gl_STDINT_TYPE_PROPERTIES
+ ;;
+ esac
+
+ dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH.
+ gl_REPLACE_LIMITS_H
+
+ AC_SUBST([HAVE_C99_STDINT_H])
+ AC_SUBST([HAVE_SYS_BITYPES_H])
+ AC_SUBST([HAVE_SYS_INTTYPES_H])
AC_SUBST([STDINT_H])
+ AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"])
])
dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES)
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}],
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)
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],
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)
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 $1 ; do
for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do
case $glsuf in
'') gltype1='int';;
- l) gltype1='long int';;
- ll) gltype1='long long int';;
- i64) gltype1='__int64';;
- u) gltype1='unsigned int';;
- ul) gltype1='unsigned long int';;
- ull) gltype1='unsigned long long int';;
+ l) gltype1='long int';;
+ ll) gltype1='long long int';;
+ i64) gltype1='__int64';;
+ u) gltype1='unsigned int';;
+ ul) gltype1='unsigned long int';;
+ ull) gltype1='unsigned long long int';;
ui64)gltype1='unsigned __int64';;
esac
AC_COMPILE_IFELSE(
AC_DEFINE_UNQUOTED([${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
fi
gl_INTEGER_TYPE_SUFFIX([sig_atomic_t wchar_t wint_t],
[gl_STDINT_INCLUDES])
-])
-dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in.
-dnl Remove this when we can assume autoconf >= 2.61.
-m4_ifdef([AC_COMPUTE_INT], [], [
- AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])])
+ 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 $GNULIB_OVERRIDES_WINT_T = 1; then
+ BITSIZEOF_WINT_T=32
+ fi
])
-
-# Hey Emacs!
-# Local Variables:
-# indent-tabs-mode: nil
-# End:
projects / debian / gzip / blobdiff