X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=m4%2Fstdint.m4;h=b86184c2ea6f8294fc2c49016f6432bd8e136cf9;hb=a2f84200a3642c51afc3fad750ea264ac120bcd1;hp=1cc57e6e9608a820725378eb081e253c6e35806f;hpb=a2016c1de6e4884f6c8ed5cc498f3bf821c25ca4;p=debian%2Fgzip diff --git a/m4/stdint.m4 b/m4/stdint.m4 index 1cc57e6..b86184c 100644 --- a/m4/stdint.m4 +++ b/m4/stdint.m4 @@ -1,5 +1,5 @@ -# stdint.m4 serial 34 -dnl Copyright (C) 2001-2010 Free Software Foundation, Inc. +# stdint.m4 serial 51 +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. @@ -7,9 +7,13 @@ dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert and Bruno Haible. dnl Test whether is supported or must be substituted. -AC_DEFUN([gl_STDINT_H], +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]) @@ -27,6 +31,15 @@ AC_DEFUN([gl_STDINT_H], fi AC_SUBST([HAVE_UNSIGNED_LONG_LONG_INT]) + dnl Check for , 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 . dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h. if test $ac_cv_header_inttypes_h = yes; then @@ -60,9 +73,9 @@ 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 */ +#define __STDC_CONSTANT_MACROS 1 +#define __STDC_LIMIT_MACROS 1 #include /* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in . */ #if !(defined WCHAR_MIN && defined WCHAR_MAX) @@ -143,11 +156,22 @@ uintptr_t h = UINTPTR_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 /* 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) @@ -208,9 +232,9 @@ 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 */ +#define __STDC_CONSTANT_MACROS 1 +#define __STDC_LIMIT_MACROS 1 #include ] gl_STDINT_INCLUDES @@ -259,45 +283,95 @@ 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; ]])], [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 , and for - dnl (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 $ac_cv_header_sys_bitypes_h = yes; then - HAVE_SYS_BITYPES_H=1 - else - HAVE_SYS_BITYPES_H=0 - fi - AC_SUBST([HAVE_SYS_BITYPES_H]) - dnl Check for (missing in Linux uClibc when built without wide - dnl character support). - AC_CHECK_HEADERS_ONCE([wchar.h]) + HAVE_C99_STDINT_H=0 + HAVE_SYS_BITYPES_H=0 + HAVE_SYS_INTTYPES_H=0 + STDINT_H=stdint.h + case "$gl_cv_header_working_stdint_h" in + *yes) + HAVE_C99_STDINT_H=1 + dnl Now see whether the system 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 +] +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 "$gl_cv_header_stdint_predates_cxx11_h" = yes; then + AC_DEFINE([__STDC_CONSTANT_MACROS], [1], + [Define to 1 if the system predates C++11.]) + AC_DEFINE([__STDC_LIMIT_MACROS], [1], + [Define to 1 if the system predates C++11.]) + fi + AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.], + [gl_cv_header_stdint_width], + [gl_cv_header_stdint_width=no + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + /* Work if build is not clean. */ + #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 + #ifndef __STDC_WANT_IEC_60559_BFP_EXT__ + #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 + #endif + #include + ]gl_STDINT_INCLUDES[ + int iw = UINTMAX_WIDTH; + ]])], + [gl_cv_header_stdint_width=yes])]) + if test "$gl_cv_header_stdint_width" = yes; then + STDINT_H= + fi + ;; + *) + dnl Check for , and for + dnl (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 $ac_cv_header_sys_bitypes_h = yes; then + HAVE_SYS_BITYPES_H=1 + fi + gl_STDINT_TYPE_PROPERTIES + ;; + esac + + dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH. + LIMITS_H=limits.h + AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$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) @@ -309,7 +383,7 @@ 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 +408,7 @@ 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 +421,7 @@ 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 +441,7 @@ 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 +454,7 @@ 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 $1 ; do @@ -419,7 +493,7 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], AC_DEFINE_UNQUOTED([${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 +532,14 @@ 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 and override wint_t. + dnl Set the variable BITSIZEOF_WINT_T accordingly. + if test $GNULIB_OVERRIDES_WINT_T = 1; then + BITSIZEOF_WINT_T=32 + fi ]) dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. @@ -465,8 +547,3 @@ 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])]) ]) - -# Hey Emacs! -# Local Variables: -# indent-tabs-mode: nil -# End: