NG4R3P

Linux 4gvps.4gvps.com 3.10.0-1127.18.2.vz7.163.46 #1 SMP Fri Nov 20 21:47:55 MSK 2020 x86_64
SOFT : Apache PHP : 7.4.33
/usr/share/autoconf/autoconf/

38.135.39.45

[ NAME ]	[ SIZE ]	[ PERM ]	[ DATE ]	[ ACT ]
+FILE +DIR
autoconf.m4	3.611 KB	-rw-r--r--	2014-06-10 05:41	R E G D
autoconf.m4f	473.726 KB	-rw-r--r--	2014-06-10 05:41	R E G D
autoheader.m4	2.677 KB	-rw-r--r--	2014-06-10 05:41	R E G D
autoscan.m4	1.977 KB	-rw-r--r--	2014-06-10 05:41	R E G D
autotest.m4	2.836 KB	-rw-r--r--	2014-06-10 05:41	R E G D
autoupdate.m4	4.218 KB	-rw-r--r--	2014-06-10 05:41	R E G D
c.m4	59.547 KB	-rw-r--r--	2014-06-10 05:41	R E G D
erlang.m4	9.68 KB	-rw-r--r--	2014-06-10 05:41	R E G D
fortran.m4	63.655 KB	-rw-r--r--	2014-06-10 05:41	R E G D
functions.m4	62.102 KB	-rw-r--r--	2014-06-10 05:41	R E G D
general.m4	99.971 KB	-rw-r--r--	2014-06-10 05:41	R E G D
go.m4	4.528 KB	-rw-r--r--	2014-06-10 05:41	R E G D
headers.m4	29.798 KB	-rw-r--r--	2014-06-10 05:41	R E G D
lang.m4	23.293 KB	-rw-r--r--	2014-06-10 05:41	R E G D
libs.m4	15.844 KB	-rw-r--r--	2014-06-10 05:41	R E G D
oldnames.m4	3.78 KB	-rw-r--r--	2014-06-10 05:41	R E G D
programs.m4	28.933 KB	-rw-r--r--	2014-06-10 05:41	R E G D
specific.m4	14.039 KB	-rw-r--r--	2014-06-10 05:41	R E G D
status.m4	54.469 KB	-rw-r--r--	2014-06-10 05:41	R E G D
types.m4	35.342 KB	-rw-r--r--	2014-06-10 05:41	R E G D
REQUEST EXIT

# This file is part of Autoconf. -*- Autoconf -*- # Type related macros: existence, sizeof, and structure members. # # Copyright (C) 2000-2002, 2004-2012 Free Software Foundation, Inc. # This file is part of Autoconf. This program is free # software; you can redistribute it and/or modify it under the # terms of the GNU General Public License as published by the # Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # Under Section 7 of GPL version 3, you are granted additional # permissions described in the Autoconf Configure Script Exception, # version 3.0, as published by the Free Software Foundation. # # You should have received a copy of the GNU General Public License # and a copy of the Autoconf Configure Script Exception along with # this program; see the files COPYINGv3 and COPYING.EXCEPTION # respectively. If not, see . # Written by David MacKenzie, with help from # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, # Roland McGrath, Noah Friedman, david d zuhn, and many others. ## ---------------- ## ## Type existence. ## ## ---------------- ## # ---------------- # # General checks. # # ---------------- # # Up to 2.13 included, Autoconf used to provide the macro # # AC_CHECK_TYPE(TYPE, DEFAULT) # # Since, it provides another version which fits better with the other # AC_CHECK_ families: # # AC_CHECK_TYPE(TYPE, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES = DEFAULT-INCLUDES]) # # In order to provide backward compatibility, the new scheme is # implemented as _AC_CHECK_TYPE_NEW, the old scheme as _AC_CHECK_TYPE_OLD, # and AC_CHECK_TYPE branches to one or the other, depending upon its # arguments. # _AC_CHECK_TYPE_NEW_BODY # ----------------------- # Shell function body for _AC_CHECK_TYPE_NEW. This macro implements the # former task of AC_CHECK_TYPE, with one big difference though: AC_CHECK_TYPE # used to grep in the headers, which, BTW, led to many problems until the # extended regular expression was correct and did not give false positives. # It turned out there are even portability issues with egrep... # # The most obvious way to check for a TYPE is just to compile a variable # definition: # # TYPE my_var; # # (TYPE being the second parameter to the shell function, hence $[]2 in m4). # Unfortunately this does not work for const qualified types in C++, where # you need an initializer. So you think of # # TYPE my_var = (TYPE) 0; # # Unfortunately, again, this is not valid for some C++ classes. # # Then you look for another scheme. For instance you think of declaring # a function which uses a parameter of type TYPE: # # int foo (TYPE param); # # but of course you soon realize this does not make it with K&R # compilers. And by no means do you want to use this: # # int foo (param) # TYPE param # { ; } # # since C++ would complain loudly. # # Don't even think of using a function return type, since K&R cries # there too. So you start thinking of declaring a *pointer* to this TYPE: # # TYPE *p; # # but you know fairly well that this is legal in C for aggregates which # are unknown (TYPE = struct does-not-exist). # # Then you think of using sizeof to make sure the TYPE is really # defined: # # sizeof (TYPE); # # That is great, but has one drawback: it succeeds when TYPE happens # to be a variable: you'd get the size of the variable's type. # Obviously, we must not accept a variable in place of a type name. # # So, to filter out the last possibility, we will require that this fail: # # sizeof ((TYPE)); # # This evokes a syntax error when TYPE is a type, but succeeds if TYPE # is actually a variable. # # Also note that we use # # if (sizeof (TYPE)) # # to `read' sizeof (to avoid warnings), while not depending on its type # (not necessarily size_t etc.). # # C++ disallows defining types inside `sizeof ()', but that's OK, # since we don't want to consider unnamed structs to be types for C++, # precisely because they don't work in cases like that. m4_define([_AC_CHECK_TYPE_NEW_BODY], [ AS_LINENO_PUSH([$[]1]) AC_CACHE_CHECK([for $[]2], [$[]3], [AS_VAR_SET([$[]3], [no]) AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([$[]4], [if (sizeof ($[]2)) return 0;])], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([$[]4], [if (sizeof (($[]2))) return 0;])], [], [AS_VAR_SET([$[]3], [yes])])])]) AS_LINENO_POP ])dnl # _AC_CHECK_TYPE_NEW(TYPE, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES = DEFAULT-INCLUDES]) # ------------------------------------------------------------ # Check whether the type TYPE is supported by the system, maybe via the # the provided includes. AC_DEFUN([_AC_CHECK_TYPE_NEW], [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_check_type], [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_check_type], [LINENO TYPE VAR INCLUDES], [Tests whether TYPE exists after having included INCLUDES, setting cache variable VAR accordingly.])], [$0_BODY])]dnl [AS_VAR_PUSHDEF([ac_Type], [ac_cv_type_$1])]dnl [ac_fn_[]_AC_LANG_ABBREV[]_check_type "$LINENO" "$1" "ac_Type" ]dnl ["AS_ESCAPE([AC_INCLUDES_DEFAULT([$4])], [""])" AS_VAR_IF([ac_Type], [yes], [$2], [$3]) AS_VAR_POPDEF([ac_Type])dnl ])# _AC_CHECK_TYPE_NEW # _AC_CHECK_TYPES(TYPE) # --------------------- # Helper to AC_CHECK_TYPES, which generates two of the four arguments # to _AC_CHECK_TYPE_NEW that are based on TYPE. m4_define([_AC_CHECK_TYPES], [[$1], [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]), [1], [Define to 1 if the system has the type `$1'.])]]) # AC_CHECK_TYPES(TYPES, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES = DEFAULT-INCLUDES]) # -------------------------------------------------------- # TYPES is an m4 list. There are no ambiguities here, we mean the newer # AC_CHECK_TYPE. AC_DEFUN([AC_CHECK_TYPES], [m4_map_args_sep([_AC_CHECK_TYPE_NEW(_$0(], [)[ $2], [$3], [$4])], [], $1)]) # _AC_CHECK_TYPE_OLD(TYPE, DEFAULT) # --------------------------------- # FIXME: This is an extremely badly chosen name, since this # macro actually performs an AC_REPLACE_TYPE. Some day we # have to clean this up. m4_define([_AC_CHECK_TYPE_OLD], [_AC_CHECK_TYPE_NEW([$1],, [AC_DEFINE_UNQUOTED([$1], [$2], [Define to `$2' if does not define.])])dnl ])# _AC_CHECK_TYPE_OLD # _AC_CHECK_TYPE_REPLACEMENT_TYPE_P(STRING) # ----------------------------------------- # Return `1' if STRING seems to be a builtin C/C++ type, i.e., if it # starts with `_Bool', `bool', `char', `double', `float', `int', # `long', `short', `signed', or `unsigned' followed by characters # that are defining types. # Because many people have used `off_t' and `size_t' too, they are added # for better common-use backward compatibility. m4_define([_AC_CHECK_TYPE_REPLACEMENT_TYPE_P], [m4_bmatch([$1], [^$_Bool\|bool\|char\|double\|float\|int\|long\|short\|\(un$?signed\|[_a-zA-Z][_a-zA-Z0-9]*_t\)[][_a-zA-Z0-9() *]*$], 1, 0)dnl ])# _AC_CHECK_TYPE_REPLACEMENT_TYPE_P # _AC_CHECK_TYPE_MAYBE_TYPE_P(STRING) # ----------------------------------- # Return `1' if STRING looks like a C/C++ type. m4_define([_AC_CHECK_TYPE_MAYBE_TYPE_P], [m4_bmatch([$1], [^[_a-zA-Z0-9 ]+$[_a-zA-Z0-9() *]\|\[\|\]$*$], 1, 0)dnl ])# _AC_CHECK_TYPE_MAYBE_TYPE_P # AC_CHECK_TYPE(TYPE, DEFAULT) # or # AC_CHECK_TYPE(TYPE, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES = DEFAULT-INCLUDES]) # ------------------------------------------------------- # # Dispatch respectively to _AC_CHECK_TYPE_OLD or _AC_CHECK_TYPE_NEW. # 1. More than two arguments => NEW # 2. $2 seems to be replacement type => OLD # See _AC_CHECK_TYPE_REPLACEMENT_TYPE_P for `replacement type'. # 3. $2 seems to be a type => NEW plus a warning # 4. default => NEW AC_DEFUN([AC_CHECK_TYPE], [m4_cond([$#], [3], [_AC_CHECK_TYPE_NEW], [$#], [4], [_AC_CHECK_TYPE_NEW], [_AC_CHECK_TYPE_REPLACEMENT_TYPE_P([$2])], [1], [_AC_CHECK_TYPE_OLD], [_AC_CHECK_TYPE_MAYBE_TYPE_P([$2])], [1], [AC_DIAGNOSE([syntax], [$0: assuming `$2' is not a type])_AC_CHECK_TYPE_NEW], [_AC_CHECK_TYPE_NEW])($@)])# AC_CHECK_TYPE # ---------------------------- # # Types that must be checked. # # ---------------------------- # AN_IDENTIFIER([ptrdiff_t], [AC_CHECK_TYPES]) # ----------------- # # Specific checks. # # ----------------- # # AC_TYPE_GETGROUPS # ----------------- AC_DEFUN([AC_TYPE_GETGROUPS], [AC_REQUIRE([AC_TYPE_UID_T])dnl AC_CACHE_CHECK(type of array argument to getgroups, ac_cv_type_getgroups, [AC_RUN_IFELSE([AC_LANG_SOURCE( [[/* Thanks to Mike Rendell for this test. */ ]AC_INCLUDES_DEFAULT[ #define NGID 256 #undef MAX #define MAX(x, y) ((x) > (y) ? (x) : (y)) int main () { gid_t gidset[NGID]; int i, n; union { gid_t gval; long int lval; } val; val.lval = -1; for (i = 0; i < NGID; i++) gidset[i] = val.gval; n = getgroups (sizeof (gidset) / MAX (sizeof (int), sizeof (gid_t)) - 1, gidset); /* Exit non-zero if getgroups seems to require an array of ints. This happens when gid_t is short int but getgroups modifies an array of ints. */ return n > 0 && gidset[n] != val.gval; }]])], [ac_cv_type_getgroups=gid_t], [ac_cv_type_getgroups=int], [ac_cv_type_getgroups=cross]) if test $ac_cv_type_getgroups = cross; then dnl When we can't run the test program (we are cross compiling), presume dnl that has either an accurate prototype for getgroups or none. dnl Old systems without prototypes probably use int. AC_EGREP_HEADER([getgroups.*int.*gid_t], unistd.h, ac_cv_type_getgroups=gid_t, ac_cv_type_getgroups=int) fi]) AC_DEFINE_UNQUOTED(GETGROUPS_T, $ac_cv_type_getgroups, [Define to the type of elements in the array set by `getgroups'. Usually this is either `int' or `gid_t'.]) ])# AC_TYPE_GETGROUPS # AU::AM_TYPE_PTRDIFF_T # --------------------- AU_DEFUN([AM_TYPE_PTRDIFF_T], [AC_CHECK_TYPES(ptrdiff_t)]) # AC_TYPE_INTMAX_T # ---------------- AC_DEFUN([AC_TYPE_INTMAX_T], [ AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) AC_CHECK_TYPE([intmax_t], [AC_DEFINE([HAVE_INTMAX_T], 1, [Define to 1 if the system has the type `intmax_t'.])], [test $ac_cv_type_long_long_int = yes \ && ac_type='long long int' \ || ac_type='long int' AC_DEFINE_UNQUOTED([intmax_t], [$ac_type], [Define to the widest signed integer type if and do not define.])]) ]) # AC_TYPE_UINTMAX_T # ----------------- AC_DEFUN([AC_TYPE_UINTMAX_T], [ AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) AC_CHECK_TYPE([uintmax_t], [AC_DEFINE([HAVE_UINTMAX_T], 1, [Define to 1 if the system has the type `uintmax_t'.])], [test $ac_cv_type_unsigned_long_long_int = yes \ && ac_type='unsigned long long int' \ || ac_type='unsigned long int' AC_DEFINE_UNQUOTED([uintmax_t], [$ac_type], [Define to the widest unsigned integer type if and do not define.])]) ]) # AC_TYPE_INTPTR_T # ---------------- AC_DEFUN([AC_TYPE_INTPTR_T], [ AC_CHECK_TYPE([intptr_t], [AC_DEFINE([HAVE_INTPTR_T], 1, [Define to 1 if the system has the type `intptr_t'.])], [for ac_type in 'int' 'long int' 'long long int'; do AC_COMPILE_IFELSE( [AC_LANG_BOOL_COMPILE_TRY( [AC_INCLUDES_DEFAULT], [[sizeof (void *) <= sizeof ($ac_type)]])], [AC_DEFINE_UNQUOTED([intptr_t], [$ac_type], [Define to the type of a signed integer type wide enough to hold a pointer, if such a type exists, and if the system does not define it.]) ac_type=]) test -z "$ac_type" && break done]) ]) # AC_TYPE_UINTPTR_T # ----------------- AC_DEFUN([AC_TYPE_UINTPTR_T], [ AC_CHECK_TYPE([uintptr_t], [AC_DEFINE([HAVE_UINTPTR_T], 1, [Define to 1 if the system has the type `uintptr_t'.])], [for ac_type in 'unsigned int' 'unsigned long int' \ 'unsigned long long int'; do AC_COMPILE_IFELSE( [AC_LANG_BOOL_COMPILE_TRY( [AC_INCLUDES_DEFAULT], [[sizeof (void *) <= sizeof ($ac_type)]])], [AC_DEFINE_UNQUOTED([uintptr_t], [$ac_type], [Define to the type of an unsigned integer type wide enough to hold a pointer, if such a type exists, and if the system does not define it.]) ac_type=]) test -z "$ac_type" && break done]) ]) # AC_TYPE_LONG_DOUBLE # ------------------- AC_DEFUN([AC_TYPE_LONG_DOUBLE], [ AC_CACHE_CHECK([for long double], [ac_cv_type_long_double], [if test "$GCC" = yes; then ac_cv_type_long_double=yes else AC_COMPILE_IFELSE( [AC_LANG_BOOL_COMPILE_TRY( [[/* The Stardent Vistra knows sizeof (long double), but does not support it. */ long double foo = 0.0L;]], [[/* On Ultrix 4.3 cc, long double is 4 and double is 8. */ sizeof (double) <= sizeof (long double)]])], [ac_cv_type_long_double=yes], [ac_cv_type_long_double=no]) fi]) if test $ac_cv_type_long_double = yes; then AC_DEFINE([HAVE_LONG_DOUBLE], 1, [Define to 1 if the system has the type `long double'.]) fi ]) # AC_TYPE_LONG_DOUBLE_WIDER # ------------------------- AC_DEFUN([AC_TYPE_LONG_DOUBLE_WIDER], [ AC_CACHE_CHECK( [for long double with more range or precision than double], [ac_cv_type_long_double_wider], [AC_COMPILE_IFELSE( [AC_LANG_BOOL_COMPILE_TRY( [[#include long double const a[] = { 0.0L, DBL_MIN, DBL_MAX, DBL_EPSILON, LDBL_MIN, LDBL_MAX, LDBL_EPSILON }; long double f (long double x) { return ((x + (unsigned long int) 10) * (-1 / x) + a[0] + (x ? f (x) : 'c')); } ]], [[(0 < ((DBL_MAX_EXP < LDBL_MAX_EXP) + (DBL_MANT_DIG < LDBL_MANT_DIG) - (LDBL_MAX_EXP < DBL_MAX_EXP) - (LDBL_MANT_DIG < DBL_MANT_DIG))) && (int) LDBL_EPSILON == 0 ]])], ac_cv_type_long_double_wider=yes, ac_cv_type_long_double_wider=no)]) if test $ac_cv_type_long_double_wider = yes; then AC_DEFINE([HAVE_LONG_DOUBLE_WIDER], 1, [Define to 1 if the type `long double' works and has more range or precision than `double'.]) fi ])# AC_TYPE_LONG_DOUBLE_WIDER # AC_C_LONG_DOUBLE # ---------------- AU_DEFUN([AC_C_LONG_DOUBLE], [ AC_TYPE_LONG_DOUBLE_WIDER ac_cv_c_long_double=$ac_cv_type_long_double_wider if test $ac_cv_c_long_double = yes; then AC_DEFINE([HAVE_LONG_DOUBLE], 1, [Define to 1 if the type `long double' works and has more range or precision than `double'.]) fi ], [The macro `AC_C_LONG_DOUBLE' is obsolete. You should use `AC_TYPE_LONG_DOUBLE' or `AC_TYPE_LONG_DOUBLE_WIDER' instead.] ) # _AC_TYPE_LONG_LONG_SNIPPET # -------------------------- # Expands to a C program that can be used to test for simultaneous support # of 'long long' and 'unsigned long long'. We don't want to say that # 'long long' is available if 'unsigned long long' is not, or vice versa, # because too many programs rely on the symmetry between signed and unsigned # integer types (excluding 'bool'). AC_DEFUN([_AC_TYPE_LONG_LONG_SNIPPET], [ AC_LANG_PROGRAM( [[/* For now, do not test the preprocessor; as of 2007 there are too many implementations with broken preprocessors. Perhaps this can be revisited in 2012. In the meantime, code should not expect #if to work with literals wider than 32 bits. */ /* Test literals. */ long long int ll = 9223372036854775807ll; long long int nll = -9223372036854775807LL; unsigned long long int ull = 18446744073709551615ULL; /* Test constant expressions. */ typedef int a[((-9223372036854775807LL < 0 && 0 < 9223372036854775807ll) ? 1 : -1)]; typedef int b[(18446744073709551615ULL <= (unsigned long long int) -1 ? 1 : -1)]; int i = 63;]], [[/* Test availability of runtime routines for shift and division. */ long long int llmax = 9223372036854775807ll; unsigned long long int ullmax = 18446744073709551615ull; return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i) | (llmax / ll) | (llmax % ll) | (ull << 63) | (ull >> 63) | (ull << i) | (ull >> i) | (ullmax / ull) | (ullmax % ull));]]) ]) # AC_TYPE_LONG_LONG_INT # --------------------- AC_DEFUN([AC_TYPE_LONG_LONG_INT], [ AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int], [ac_cv_type_long_long_int=yes if test "x${ac_cv_prog_cc_c99-no}" = xno; then ac_cv_type_long_long_int=$ac_cv_type_unsigned_long_long_int if test $ac_cv_type_long_long_int = yes; then dnl Catch a bug in Tandem NonStop Kernel (OSS) cc -O circa 2004. dnl If cross compiling, assume the bug is not important, since dnl nobody cross compiles for this platform as far as we know. AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[@%:@include @%:@ifndef LLONG_MAX @%:@ define HALF \ (1LL << (sizeof (long long int) * CHAR_BIT - 2)) @%:@ define LLONG_MAX (HALF - 1 + HALF) @%:@endif]], [[long long int n = 1; int i; for (i = 0; ; i++) { long long int m = n << i; if (m >> i != n) return 1; if (LLONG_MAX / 2 < m) break; } return 0;]])], [], [ac_cv_type_long_long_int=no], [:]) fi fi]) if test $ac_cv_type_long_long_int = yes; then AC_DEFINE([HAVE_LONG_LONG_INT], [1], [Define to 1 if the system has the type `long long int'.]) fi ]) # AC_TYPE_UNSIGNED_LONG_LONG_INT # ------------------------------ AC_DEFUN([AC_TYPE_UNSIGNED_LONG_LONG_INT], [ AC_CACHE_CHECK([for unsigned long long int], [ac_cv_type_unsigned_long_long_int], [ac_cv_type_unsigned_long_long_int=yes if test "x${ac_cv_prog_cc_c99-no}" = xno; then AC_LINK_IFELSE( [_AC_TYPE_LONG_LONG_SNIPPET], [], [ac_cv_type_unsigned_long_long_int=no]) fi]) if test $ac_cv_type_unsigned_long_long_int = yes; then AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], [1], [Define to 1 if the system has the type `unsigned long long int'.]) fi ]) # AC_TYPE_MBSTATE_T # ----------------- AC_DEFUN([AC_TYPE_MBSTATE_T], [AC_CACHE_CHECK([for mbstate_t], ac_cv_type_mbstate_t, [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [AC_INCLUDES_DEFAULT # include ], [mbstate_t x; return sizeof x;])], [ac_cv_type_mbstate_t=yes], [ac_cv_type_mbstate_t=no])]) if test $ac_cv_type_mbstate_t = yes; then AC_DEFINE([HAVE_MBSTATE_T], 1, [Define to 1 if declares mbstate_t.]) else AC_DEFINE([mbstate_t], int, [Define to a type if does not define.]) fi]) # AC_TYPE_UID_T # ------------- # FIXME: Rewrite using AC_CHECK_TYPE. AN_IDENTIFIER([gid_t], [AC_TYPE_UID_T]) AN_IDENTIFIER([uid_t], [AC_TYPE_UID_T]) AC_DEFUN([AC_TYPE_UID_T], [AC_CACHE_CHECK(for uid_t in sys/types.h, ac_cv_type_uid_t, [AC_EGREP_HEADER(uid_t, sys/types.h, ac_cv_type_uid_t=yes, ac_cv_type_uid_t=no)]) if test $ac_cv_type_uid_t = no; then AC_DEFINE(uid_t, int, [Define to `int' if doesn't define.]) AC_DEFINE(gid_t, int, [Define to `int' if doesn't define.]) fi ]) AN_IDENTIFIER([size_t], [AC_TYPE_SIZE_T]) AC_DEFUN([AC_TYPE_SIZE_T], [AC_CHECK_TYPE(size_t, unsigned int)]) AN_IDENTIFIER([ssize_t], [AC_TYPE_SSIZE_T]) AC_DEFUN([AC_TYPE_SSIZE_T], [AC_CHECK_TYPE(ssize_t, int)]) AN_IDENTIFIER([pid_t], [AC_TYPE_PID_T]) AC_DEFUN([AC_TYPE_PID_T], [AC_CHECK_TYPE(pid_t, int)]) AN_IDENTIFIER([off_t], [AC_TYPE_OFF_T]) AC_DEFUN([AC_TYPE_OFF_T], [AC_CHECK_TYPE(off_t, long int)]) AN_IDENTIFIER([mode_t], [AC_TYPE_MODE_T]) AC_DEFUN([AC_TYPE_MODE_T], [AC_CHECK_TYPE(mode_t, int)]) AN_IDENTIFIER([int8_t], [AC_TYPE_INT8_T]) AN_IDENTIFIER([int16_t], [AC_TYPE_INT16_T]) AN_IDENTIFIER([int32_t], [AC_TYPE_INT32_T]) AN_IDENTIFIER([int64_t], [AC_TYPE_INT64_T]) AN_IDENTIFIER([uint8_t], [AC_TYPE_UINT8_T]) AN_IDENTIFIER([uint16_t], [AC_TYPE_UINT16_T]) AN_IDENTIFIER([uint32_t], [AC_TYPE_UINT32_T]) AN_IDENTIFIER([uint64_t], [AC_TYPE_UINT64_T]) AC_DEFUN([AC_TYPE_INT8_T], [_AC_TYPE_INT(8)]) AC_DEFUN([AC_TYPE_INT16_T], [_AC_TYPE_INT(16)]) AC_DEFUN([AC_TYPE_INT32_T], [_AC_TYPE_INT(32)]) AC_DEFUN([AC_TYPE_INT64_T], [_AC_TYPE_INT(64)]) AC_DEFUN([AC_TYPE_UINT8_T], [_AC_TYPE_UNSIGNED_INT(8)]) AC_DEFUN([AC_TYPE_UINT16_T], [_AC_TYPE_UNSIGNED_INT(16)]) AC_DEFUN([AC_TYPE_UINT32_T], [_AC_TYPE_UNSIGNED_INT(32)]) AC_DEFUN([AC_TYPE_UINT64_T], [_AC_TYPE_UNSIGNED_INT(64)]) # _AC_TYPE_INT_BODY # ----------------- # Shell function body for _AC_TYPE_INT. m4_define([_AC_TYPE_INT_BODY], [ AS_LINENO_PUSH([$[]1]) AC_CACHE_CHECK([for int$[]2_t], [$[]3], [AS_VAR_SET([$[]3], [no]) # Order is important - never check a type that is potentially smaller # than half of the expected target width. for ac_type in int$[]2_t 'int' 'long int' \ 'long long int' 'short int' 'signed char'; do AC_COMPILE_IFELSE( [AC_LANG_BOOL_COMPILE_TRY( [AC_INCLUDES_DEFAULT enum { N = $[]2 / 2 - 1 };], [0 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1)])], [AC_COMPILE_IFELSE( [AC_LANG_BOOL_COMPILE_TRY( [AC_INCLUDES_DEFAULT enum { N = $[]2 / 2 - 1 };], [($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1) < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 2)])], [], [AS_CASE([$ac_type], [int$[]2_t], [AS_VAR_SET([$[]3], [yes])], [AS_VAR_SET([$[]3], [$ac_type])])])]) AS_VAR_IF([$[]3], [no], [], [break]) done]) AS_LINENO_POP ])# _AC_TYPE_INT_BODY # _AC_TYPE_INT(NBITS) # ------------------- # Set a variable ac_cv_c_intNBITS_t to `yes' if intNBITS_t is available, # `no' if it is not and no replacement types could be found, and a C type # if it is not available but a replacement signed integer type of width # exactly NBITS bits was found. In the third case, intNBITS_t is AC_DEFINEd # to type, as well. AC_DEFUN([_AC_TYPE_INT], [AC_REQUIRE_SHELL_FN([ac_fn_c_find_intX_t], [AS_FUNCTION_DESCRIBE([ac_fn_c_find_intX_t], [LINENO BITS VAR], [Finds a signed integer type with width BITS, setting cache variable VAR accordingly.])], [$0_BODY])]dnl [ac_fn_c_find_intX_t "$LINENO" "$1" "ac_cv_c_int$1_t" case $ac_cv_c_int$1_t in #( no|yes) ;; #( *) AC_DEFINE_UNQUOTED([int$1_t], [$ac_cv_c_int$1_t], [Define to the type of a signed integer type of width exactly $1 bits if such a type exists and the standard includes do not define it.]);; esac ])# _AC_TYPE_INT # _AC_TYPE_UNSIGNED_INT_BODY # -------------------------- # Shell function body for _AC_TYPE_UNSIGNED_INT. m4_define([_AC_TYPE_UNSIGNED_INT_BODY], [ AS_LINENO_PUSH([$[]1]) AC_CACHE_CHECK([for uint$[]2_t], $[]3, [AS_VAR_SET([$[]3], [no]) # Order is important - never check a type that is potentially smaller # than half of the expected target width. for ac_type in uint$[]2_t 'unsigned int' 'unsigned long int' \ 'unsigned long long int' 'unsigned short int' 'unsigned char'; do AC_COMPILE_IFELSE( [AC_LANG_BOOL_COMPILE_TRY( [AC_INCLUDES_DEFAULT], [(($ac_type) -1 >> ($[]2 / 2 - 1)) >> ($[]2 / 2 - 1) == 3])], [AS_CASE([$ac_type], [uint$[]2_t], [AS_VAR_SET([$[]3], [yes])], [AS_VAR_SET([$[]3], [$ac_type])])]) AS_VAR_IF([$[]3], [no], [], [break]) done]) AS_LINENO_POP ])# _AC_TYPE_UNSIGNED_INT_BODY # _AC_TYPE_UNSIGNED_INT(NBITS) # ---------------------------- # Set a variable ac_cv_c_uintNBITS_t to `yes' if uintNBITS_t is available, # `no' if it is not and no replacement types could be found, and a C type # if it is not available but a replacement unsigned integer type of width # exactly NBITS bits was found. In the third case, uintNBITS_t is AC_DEFINEd # to type, as well. AC_DEFUN([_AC_TYPE_UNSIGNED_INT], [AC_REQUIRE_SHELL_FN([ac_fn_c_find_uintX_t], [AS_FUNCTION_DESCRIBE([ac_fn_c_find_uintX_t], [LINENO BITS VAR], [Finds an unsigned integer type with width BITS, setting cache variable VAR accordingly.])], [$0_BODY])]dnl [ac_fn_c_find_uintX_t "$LINENO" "$1" "ac_cv_c_uint$1_t" case $ac_cv_c_uint$1_t in #( no|yes) ;; #( *) m4_bmatch([$1], [^$8\|32\|64$$], [AC_DEFINE([_UINT$1_T], 1, [Define for Solaris 2.5.1 so the uint$1_t typedef from , , or is not used. If the typedef were allowed, the #define below would cause a syntax error.])]) AC_DEFINE_UNQUOTED([uint$1_t], [$ac_cv_c_uint$1_t], [Define to the type of an unsigned integer type of width exactly $1 bits if such a type exists and the standard includes do not define it.]);; esac ])# _AC_TYPE_UNSIGNED_INT # AC_TYPE_SIGNAL # -------------- # Note that identifiers starting with SIG are reserved by ANSI C. # C89 requires signal handlers to return void; only K&R returned int; # modern code does not need to worry about using this macro (not to # mention that sigaction is better than signal). AU_DEFUN([AC_TYPE_SIGNAL], [AC_CACHE_CHECK([return type of signal handlers], ac_cv_type_signal, [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([#include #include ], [return *(signal (0, 0)) (0) == 1;])], [ac_cv_type_signal=int], [ac_cv_type_signal=void])]) AC_DEFINE_UNQUOTED(RETSIGTYPE, $ac_cv_type_signal, [Define as the return type of signal handlers (`int' or `void').]) ], [your code may safely assume C89 semantics that RETSIGTYPE is void. Remove this warning and the `AC_CACHE_CHECK' when you adjust the code.]) ## ------------------------ ## ## Checking size of types. ## ## ------------------------ ## # ---------------- # # Generic checks. # # ---------------- # # AC_CHECK_SIZEOF(TYPE, [IGNORED], [INCLUDES = DEFAULT-INCLUDES]) # --------------------------------------------------------------- AC_DEFUN([AC_CHECK_SIZEOF], [AS_LITERAL_IF(m4_translit([[$1]], [*], [p]), [], [m4_fatal([$0: requires literal arguments])])]dnl [# The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. _AC_CACHE_CHECK_INT([size of $1], [AS_TR_SH([ac_cv_sizeof_$1])], [(long int) (sizeof ($1))], [AC_INCLUDES_DEFAULT([$3])], [if test "$AS_TR_SH([ac_cv_type_$1])" = yes; then AC_MSG_FAILURE([cannot compute sizeof ($1)], 77) else AS_TR_SH([ac_cv_sizeof_$1])=0 fi]) AC_DEFINE_UNQUOTED(AS_TR_CPP(sizeof_$1), $AS_TR_SH([ac_cv_sizeof_$1]), [The size of `$1', as computed by sizeof.]) ])# AC_CHECK_SIZEOF # AC_CHECK_ALIGNOF(TYPE, [INCLUDES = DEFAULT-INCLUDES]) # ----------------------------------------------------- # TYPE can include braces and semicolon, which AS_TR_CPP and AS_TR_SH # (correctly) recognize as potential shell metacharacters. So we # have to flatten problematic characters ourselves to guarantee that # AC_DEFINE_UNQUOTED will see a literal. AC_DEFUN([AC_CHECK_ALIGNOF], [m4_if(m4_index(m4_translit([[$1]], [`\"], [$]), [$]), [-1], [], [m4_fatal([$0: requires literal arguments])])]dnl [_$0([$1], [$2], m4_translit([[$1]], [{;}], [___]))]) m4_define([_AC_CHECK_ALIGNOF], [# The cast to long int works around a bug in the HP C Compiler, # see AC_CHECK_SIZEOF for more information. _AC_CACHE_CHECK_INT([alignment of $1], [AS_TR_SH([ac_cv_alignof_$3])], [(long int) offsetof (ac__type_alignof_, y)], [AC_INCLUDES_DEFAULT([$2]) #ifndef offsetof # define offsetof(type, member) ((char *) &((type *) 0)->member - (char *) 0) #endif typedef struct { char x; $1 y; } ac__type_alignof_;], [if test "$AS_TR_SH([ac_cv_type_$3])" = yes; then AC_MSG_FAILURE([cannot compute alignment of $1], 77) else AS_TR_SH([ac_cv_alignof_$3])=0 fi]) AC_DEFINE_UNQUOTED(AS_TR_CPP(alignof_$3), $AS_TR_SH([ac_cv_alignof_$3]), [The normal alignment of `$1', in bytes.]) ])# AC_CHECK_ALIGNOF # AU::AC_INT_16_BITS # ------------------ # What a great name :) AU_DEFUN([AC_INT_16_BITS], [AC_CHECK_SIZEOF([int]) test $ac_cv_sizeof_int = 2 && AC_DEFINE(INT_16_BITS, 1, [Define to 1 if `sizeof (int)' = 2. Obsolete, use `SIZEOF_INT'.]) ], [your code should no longer depend upon `INT_16_BITS', but upon `SIZEOF_INT == 2'. Remove this warning and the `AC_DEFINE' when you adjust the code.]) # AU::AC_LONG_64_BITS # ------------------- AU_DEFUN([AC_LONG_64_BITS], [AC_CHECK_SIZEOF([long int]) test $ac_cv_sizeof_long_int = 8 && AC_DEFINE(LONG_64_BITS, 1, [Define to 1 if `sizeof (long int)' = 8. Obsolete, use `SIZEOF_LONG_INT'.]) ], [your code should no longer depend upon `LONG_64_BITS', but upon `SIZEOF_LONG_INT == 8'. Remove this warning and the `AC_DEFINE' when you adjust the code.]) ## -------------------------- ## ## Generic structure checks. ## ## -------------------------- ## # ---------------- # # Generic checks. # # ---------------- # # _AC_CHECK_MEMBER_BODY # --------------------- # Shell function body for AC_CHECK_MEMBER. m4_define([_AC_CHECK_MEMBER_BODY], [ AS_LINENO_PUSH([$[]1]) AC_CACHE_CHECK([for $[]2.$[]3], [$[]4], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]5], [static $[]2 ac_aggr; if (ac_aggr.$[]3) return 0;])], [AS_VAR_SET([$[]4], [yes])], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]5], [static $[]2 ac_aggr; if (sizeof ac_aggr.$[]3) return 0;])], [AS_VAR_SET([$[]4], [yes])], [AS_VAR_SET([$[]4], [no])])])]) AS_LINENO_POP ])dnl # AC_CHECK_MEMBER(AGGREGATE.MEMBER, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES = DEFAULT-INCLUDES]) # --------------------------------------------------------- # AGGREGATE.MEMBER is for instance `struct passwd.pw_gecos', shell # variables are not a valid argument. AC_DEFUN([AC_CHECK_MEMBER], [AC_REQUIRE_SHELL_FN([ac_fn_]_AC_LANG_ABBREV[_check_member], [AS_FUNCTION_DESCRIBE([ac_fn_]_AC_LANG_ABBREV[_check_member], [LINENO AGGR MEMBER VAR INCLUDES], [Tries to find if the field MEMBER exists in type AGGR, after including INCLUDES, setting cache variable VAR accordingly.])], [_$0_BODY])]dnl [AS_LITERAL_IF([$1], [], [m4_fatal([$0: requires literal arguments])])]dnl [m4_if(m4_index([$1], [.]), [-1], [m4_fatal([$0: Did not see any dot in `$1'])])]dnl [AS_VAR_PUSHDEF([ac_Member], [ac_cv_member_$1])]dnl [ac_fn_[]_AC_LANG_ABBREV[]_check_member "$LINENO" ]dnl [m4_bpatsubst([$1], [^$[^.]*$\.$.*$], ["\1" "\2"]) "ac_Member" ]dnl ["AS_ESCAPE([AC_INCLUDES_DEFAULT([$4])], [""])" AS_VAR_IF([ac_Member], [yes], [$2], [$3]) AS_VAR_POPDEF([ac_Member])dnl ])# AC_CHECK_MEMBER # _AC_CHECK_MEMBERS(AGGREGATE.MEMBER) # ----------------------------------- # Helper to AC_CHECK_MEMBERS, which generates two of the four # arguments to AC_CHECK_MEMBER that are based on AGGREGATE and MEMBER. m4_define([_AC_CHECK_MEMBERS], [[$1], [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]), [1], [Define to 1 if `]m4_bpatsubst([$1], [^$[^.]*$\.$.*$], [[\2' is a member of `\1]])['.])]]) # AC_CHECK_MEMBERS([AGGREGATE.MEMBER, ...], # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES = DEFAULT-INCLUDES]) # ---------------------------------------------------------- # The first argument is an m4 list. AC_DEFUN([AC_CHECK_MEMBERS], [m4_map_args_sep([AC_CHECK_MEMBER(_$0(], [)[ $2], [$3], [$4])], [], $1)]) # ------------------------------------------------------- # # Members that ought to be tested with AC_CHECK_MEMBERS. # # ------------------------------------------------------- # AN_IDENTIFIER([st_blksize], [AC_CHECK_MEMBERS([struct stat.st_blksize])]) AN_IDENTIFIER([st_rdev], [AC_CHECK_MEMBERS([struct stat.st_rdev])]) # Alphabetic order, please. # _AC_STRUCT_DIRENT(MEMBER) # ------------------------- AC_DEFUN([_AC_STRUCT_DIRENT], [ AC_REQUIRE([AC_HEADER_DIRENT]) AC_CHECK_MEMBERS([struct dirent.$1], [], [], [[ #include #ifdef HAVE_DIRENT_H # include #else # define dirent direct # ifdef HAVE_SYS_NDIR_H # include # endif # ifdef HAVE_SYS_DIR_H # include # endif # ifdef HAVE_NDIR_H # include # endif #endif ]]) ]) # AC_STRUCT_DIRENT_D_INO # ---------------------- AC_DEFUN([AC_STRUCT_DIRENT_D_INO], [_AC_STRUCT_DIRENT([d_ino])]) # AC_STRUCT_DIRENT_D_TYPE # ----------------------- AC_DEFUN([AC_STRUCT_DIRENT_D_TYPE], [_AC_STRUCT_DIRENT([d_type])]) # AC_STRUCT_ST_BLKSIZE # -------------------- AU_DEFUN([AC_STRUCT_ST_BLKSIZE], [AC_CHECK_MEMBERS([struct stat.st_blksize], [AC_DEFINE(HAVE_ST_BLKSIZE, 1, [Define to 1 if your `struct stat' has `st_blksize'. Deprecated, use `HAVE_STRUCT_STAT_ST_BLKSIZE' instead.])]) ], [your code should no longer depend upon `HAVE_ST_BLKSIZE', but `HAVE_STRUCT_STAT_ST_BLKSIZE'. Remove this warning and the `AC_DEFINE' when you adjust the code.])# AC_STRUCT_ST_BLKSIZE # AC_STRUCT_ST_BLOCKS # ------------------- # If `struct stat' contains an `st_blocks' member, define # HAVE_STRUCT_STAT_ST_BLOCKS. Otherwise, add `fileblocks.o' to the # output variable LIBOBJS. We still define HAVE_ST_BLOCKS for backward # compatibility. In the future, we will activate specializations for # this macro, so don't obsolete it right now. # # AC_OBSOLETE([$0], [; replace it with # AC_CHECK_MEMBERS([struct stat.st_blocks], # [AC_LIBOBJ([fileblocks])]) # Please note that it will define `HAVE_STRUCT_STAT_ST_BLOCKS', # and not `HAVE_ST_BLOCKS'.])dnl # AN_IDENTIFIER([st_blocks], [AC_STRUCT_ST_BLOCKS]) AC_DEFUN([AC_STRUCT_ST_BLOCKS], [AC_CHECK_MEMBERS([struct stat.st_blocks], [AC_DEFINE(HAVE_ST_BLOCKS, 1, [Define to 1 if your `struct stat' has `st_blocks'. Deprecated, use `HAVE_STRUCT_STAT_ST_BLOCKS' instead.])], [AC_LIBOBJ([fileblocks])]) ])# AC_STRUCT_ST_BLOCKS # AC_STRUCT_ST_RDEV # ----------------- AU_DEFUN([AC_STRUCT_ST_RDEV], [AC_CHECK_MEMBERS([struct stat.st_rdev], [AC_DEFINE(HAVE_ST_RDEV, 1, [Define to 1 if your `struct stat' has `st_rdev'. Deprecated, use `HAVE_STRUCT_STAT_ST_RDEV' instead.])]) ], [your code should no longer depend upon `HAVE_ST_RDEV', but `HAVE_STRUCT_STAT_ST_RDEV'. Remove this warning and the `AC_DEFINE' when you adjust the code.])# AC_STRUCT_ST_RDEV # AC_STRUCT_TM # ------------ # FIXME: This macro is badly named, it should be AC_CHECK_TYPE_STRUCT_TM. # Or something else, but what? AC_CHECK_TYPE_STRUCT_TM_IN_SYS_TIME? AC_DEFUN([AC_STRUCT_TM], [AC_CACHE_CHECK([whether struct tm is in sys/time.h or time.h], ac_cv_struct_tm, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include #include ], [struct tm tm; int *p = &tm.tm_sec; return !p;])], [ac_cv_struct_tm=time.h], [ac_cv_struct_tm=sys/time.h])]) if test $ac_cv_struct_tm = sys/time.h; then AC_DEFINE(TM_IN_SYS_TIME, 1, [Define to 1 if your declares `struct tm'.]) fi ])# AC_STRUCT_TM # AC_STRUCT_TIMEZONE # ------------------ # Figure out how to get the current timezone. If `struct tm' has a # `tm_zone' member, define `HAVE_TM_ZONE'. Otherwise, if the # external array `tzname' is found, define `HAVE_TZNAME'. AN_IDENTIFIER([tm_zone], [AC_STRUCT_TIMEZONE]) AC_DEFUN([AC_STRUCT_TIMEZONE], [AC_REQUIRE([AC_STRUCT_TM])dnl AC_CHECK_MEMBERS([struct tm.tm_zone],,,[#include #include <$ac_cv_struct_tm> ]) if test "$ac_cv_member_struct_tm_tm_zone" = yes; then AC_DEFINE(HAVE_TM_ZONE, 1, [Define to 1 if your `struct tm' has `tm_zone'. Deprecated, use `HAVE_STRUCT_TM_TM_ZONE' instead.]) else AC_CHECK_DECLS([tzname], , , [#include ]) AC_CACHE_CHECK(for tzname, ac_cv_var_tzname, [AC_LINK_IFELSE([AC_LANG_PROGRAM( [[#include #if !HAVE_DECL_TZNAME extern char *tzname[]; #endif ]], [[return tzname[0][0];]])], [ac_cv_var_tzname=yes], [ac_cv_var_tzname=no])]) if test $ac_cv_var_tzname = yes; then AC_DEFINE(HAVE_TZNAME, 1, [Define to 1 if you don't have `tm_zone' but do have the external array `tzname'.]) fi fi ])# AC_STRUCT_TIMEZONE