diff options
Diffstat (limited to 'm4/stdint.m4')
| -rw-r--r-- | m4/stdint.m4 | 193 |
1 files changed, 46 insertions, 147 deletions
diff --git a/m4/stdint.m4 b/m4/stdint.m4 index 1cc57e6..3de7e13 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 24 +dnl Copyright (C) 2001-2002, 2004-2007 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. @@ -9,7 +9,7 @@ dnl Test whether <stdint.h> is supported or must be substituted. AC_DEFUN([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]) @@ -45,32 +45,32 @@ AC_DEFUN([gl_STDINT_H], fi AC_SUBST([HAVE_SYS_TYPES_H]) - gl_CHECK_NEXT_HEADERS([stdint.h]) + dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_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>. + 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. 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([[ + 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 */ -#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 -[ +#include ABSOLUTE_STDINT_H #ifdef INT8_MAX int8_t a1 = INT8_MAX; int8_t a1min = INT8_MIN; @@ -142,32 +142,14 @@ uintptr_t h = UINTPTR_MAX; #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 == 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; + int check_PTRDIFF: PTRDIFF_MIN < (ptrdiff_t) 0 && (ptrdiff_t) 0 < PTRDIFF_MAX ? 1 : -1; + int check_SIG_ATOMIC: SIG_ATOMIC_MIN <= (sig_atomic_t) 0 && (sig_atomic_t) 0 < SIG_ATOMIC_MAX ? 1 : -1; + int check_SIZE: (size_t) 0 < SIZE_MAX ? 1 : -1; + int check_WCHAR: WCHAR_MIN <= (wchar_t) 0 && (wchar_t) 0 < WCHAR_MAX ? 1 : -1; + int check_WINT: WINT_MIN <= (wint_t) 0 && (wint_t) 0 < WINT_MAX + && (WINT_MIN < (wint_t) 0 || (wint_t) -1 == (wint_t) WINT_MAX) + ? 1 : -1; /* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others. */ int check_UINT8_C: @@ -201,75 +183,7 @@ struct s { int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1; }; ]])], - [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 __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 */ -#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 1; - } - return 0; -]])], - [gl_cv_header_working_stdint_h=yes], - [], - [dnl When cross-compiling, assume it works. - gl_cv_header_working_stdint_h=yes - ]) - ]) - ]) + [gl_cv_header_working_stdint_h=yes])]) fi if test "$gl_cv_header_working_stdint_h" = yes; then STDINT_H= @@ -290,14 +204,10 @@ static const char *macro_values[] = 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) ]) dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES) @@ -308,7 +218,7 @@ AC_DEFUN([gl_STDINT_BITSIZEOF], 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. - m4_foreach_w([gltype], [$1], + AC_FOREACH([gltype], [$1], [AH_TEMPLATE([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), [Define to the number of bits in type ']gltype['.])]) for gltype in $1 ; do @@ -333,7 +243,7 @@ AC_DEFUN([gl_STDINT_BITSIZEOF], AC_DEFINE_UNQUOTED([BITSIZEOF_${GLTYPE}], [$result]) eval BITSIZEOF_${GLTYPE}=\$result done - m4_foreach_w([gltype], [$1], + AC_FOREACH([gltype], [$1], [AC_SUBST([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) ]) @@ -346,7 +256,7 @@ AC_DEFUN([gl_CHECK_TYPES_SIGNED], 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. - m4_foreach_w([gltype], [$1], + AC_FOREACH([gltype], [$1], [AH_TEMPLATE([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), [Define to 1 if ']gltype[' is a signed integer type.])]) for gltype in $1 ; do @@ -360,13 +270,13 @@ AC_DEFUN([gl_CHECK_TYPES_SIGNED], eval result=\$gl_cv_type_${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 - m4_foreach_w([gltype], [$1], + AC_FOREACH([gltype], [$1], [AC_SUBST([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) ]) @@ -379,7 +289,7 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], 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. - m4_foreach_w([gltype], [$1], + AC_FOREACH([gltype], [$1], [AH_TEMPLATE(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX], [Define to l, ll, u, ul, ull, etc., as suitable for constants of type ']gltype['.])]) @@ -396,18 +306,18 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], for glsuf in "$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 @@ -416,9 +326,9 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], 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 - m4_foreach_w([gltype], [$1], + AC_FOREACH([gltype], [$1], [AC_SUBST(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])]) ]) @@ -429,34 +339,23 @@ AC_DEFUN([gl_STDINT_INCLUDES], included before <wchar.h>. */ #include <stddef.h> #include <signal.h> - #if HAVE_WCHAR_H - # include <stdio.h> - # include <time.h> - # include <wchar.h> - #endif + #include <stdio.h> + #include <time.h> + #include <wchar.h> ]]) 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.in.h. +dnl of interest to stdint_.h. AC_DEFUN([gl_STDINT_TYPE_PROPERTIES], [ - 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_BITSIZEOF([ptrdiff_t sig_atomic_t size_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 - 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_INTEGER_TYPE_SUFFIX([ptrdiff_t sig_atomic_t size_t wchar_t wint_t], [gl_STDINT_INCLUDES]) ]) |