diff options
Diffstat (limited to 'gnulib-m4/stdint.m4')
| -rw-r--r-- | gnulib-m4/stdint.m4 | 72 |
1 files changed, 27 insertions, 45 deletions
diff --git a/gnulib-m4/stdint.m4 b/gnulib-m4/stdint.m4 index b86184c2..c3f08942 100644 --- a/gnulib-m4/stdint.m4 +++ b/gnulib-m4/stdint.m4 @@ -1,5 +1,5 @@ -# stdint.m4 serial 51 -dnl Copyright (C) 2001-2018 Free Software Foundation, Inc. +# stdint.m4 serial 61 +dnl Copyright (C) 2001-2022 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. @@ -7,6 +7,8 @@ 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_PREREQ([2.61]) + AC_DEFUN_ONCE([gl_STDINT_H], [ AC_PREREQ([2.59])dnl @@ -15,21 +17,12 @@ AC_DEFUN_ONCE([gl_STDINT_H], 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]) - if test $ac_cv_type_long_long_int = yes; then - HAVE_LONG_LONG_INT=1 - else - HAVE_LONG_LONG_INT=0 - fi - AC_SUBST([HAVE_LONG_LONG_INT]) - AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) - if test $ac_cv_type_unsigned_long_long_int = yes; then - HAVE_UNSIGNED_LONG_LONG_INT=1 - else - HAVE_UNSIGNED_LONG_LONG_INT=0 - fi - AC_SUBST([HAVE_UNSIGNED_LONG_LONG_INT]) + dnl For backward compatibility. Some packages may still be testing these + dnl macros. + AC_DEFINE([HAVE_LONG_LONG_INT], [1], + [Define to 1 if the system has the type 'long long int'.]) + AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], [1], + [Define to 1 if the system has the type 'unsigned long long int'.]) dnl Check for <wchar.h>, in the same way as gl_WCHAR_H does. AC_CHECK_HEADERS_ONCE([wchar.h]) @@ -41,7 +34,7 @@ AC_DEFUN_ONCE([gl_STDINT_H], AC_SUBST([HAVE_WCHAR_H]) dnl Check for <inttypes.h>. - dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h. + AC_CHECK_HEADERS_ONCE([inttypes.h]) if test $ac_cv_header_inttypes_h = yes; then HAVE_INTTYPES_H=1 else @@ -50,7 +43,7 @@ AC_DEFUN_ONCE([gl_STDINT_H], AC_SUBST([HAVE_INTTYPES_H]) dnl Check for <sys/types.h>. - dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_sys_types_h. + AC_CHECK_HEADERS_ONCE([sys/types.h]) if test $ac_cv_header_sys_types_h = yes; then HAVE_SYS_TYPES_H=1 else @@ -159,7 +152,7 @@ uintmax_t j = UINTMAX_MAX; /* Check that SIZE_MAX has the correct type, if possible. */ #if 201112 <= __STDC_VERSION__ int k = _Generic (SIZE_MAX, size_t: 0); -#elif (2 <= __GNUC__ || defined __IBM__TYPEOF__ \ +#elif (2 <= __GNUC__ || 4 <= __clang_major__ || defined __IBM__TYPEOF__ \ || (0x5110 <= __SUNPRO_C && !__STDC__)) extern size_t k; extern __typeof__ (SIZE_MAX) k; @@ -177,7 +170,7 @@ struct s { PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t) && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t) ? 1 : -1; - /* Detect bug in FreeBSD 6.0 / ia64. */ + /* Detect bug in FreeBSD 6.0/ia64 and FreeBSD 13.0/arm64. */ int check_SIG_ATOMIC: SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t) && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t) @@ -303,15 +296,16 @@ static const char *macro_values[] = HAVE_C99_STDINT_H=0 HAVE_SYS_BITYPES_H=0 HAVE_SYS_INTTYPES_H=0 - STDINT_H=stdint.h + GL_GENERATE_STDINT_H=true case "$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 + dnl If not, there would be problems when stdint.h is included from C++. + AC_CACHE_CHECK([whether stdint.h works without ISO C predefines], + [gl_cv_header_stdint_without_STDC_macros], + [gl_cv_header_stdint_without_STDC_macros=no AC_COMPILE_IFELSE([ AC_LANG_PROGRAM([[ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ @@ -322,13 +316,14 @@ gl_STDINT_INCLUDES intmax_t im = INTMAX_MAX; int32_t i32 = INT32_C (0x7fffffff); ]])], - [gl_cv_header_stdint_predates_cxx11_h=no])]) + [gl_cv_header_stdint_without_STDC_macros=yes]) + ]) - if test "$gl_cv_header_stdint_predates_cxx11_h" = yes; then + if test $gl_cv_header_stdint_without_STDC_macros = no; then AC_DEFINE([__STDC_CONSTANT_MACROS], [1], - [Define to 1 if the system <stdint.h> predates C++11.]) + [Define to 1 if the system <stdint.h> predates C++11.]) AC_DEFINE([__STDC_LIMIT_MACROS], [1], - [Define to 1 if the system <stdint.h> predates C++11.]) + [Define to 1 if the system <stdint.h> predates C++11.]) fi AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.], [gl_cv_header_stdint_width], @@ -346,7 +341,7 @@ int32_t i32 = INT32_C (0x7fffffff); ]])], [gl_cv_header_stdint_width=yes])]) if test "$gl_cv_header_stdint_width" = yes; then - STDINT_H= + GL_GENERATE_STDINT_H=false fi ;; *) @@ -364,14 +359,11 @@ int32_t i32 = INT32_C (0x7fffffff); esac dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH. - LIMITS_H=limits.h - AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"]) + gl_REPLACE_LIMITS_H AC_SUBST([HAVE_C99_STDINT_H]) AC_SUBST([HAVE_SYS_BITYPES_H]) AC_SUBST([HAVE_SYS_INTTYPES_H]) - AC_SUBST([STDINT_H]) - AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"]) ]) dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES) @@ -499,13 +491,9 @@ AC_DEFUN([gl_INTEGER_TYPE_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 - # include <stdio.h> - # include <time.h> # include <wchar.h> #endif ]]) @@ -537,13 +525,7 @@ AC_DEFUN([gl_STDINT_TYPE_PROPERTIES], 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 + if test $GNULIBHEADERS_OVERRIDE_WINT_T = 1; then BITSIZEOF_WINT_T=32 fi ]) - -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])]) -]) |