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binutils-gdb/libiberty/config.in
Nick Clifton e2a2633945 Synchronize sourceware version of the libiberty sources with the master gcc versions. 
This brings in the following commits:

commit c73cc6fe6207b2863afa31a3be8ad87b70d3df0a
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue Dec 5 23:32:19 2023 +0100

    libiberty: Fix build with GCC < 7

    Tobias reported on IRC that the linker fails to build with GCC 4.8.5.
    In configure I've tried to use everything actually used in the sha1.c
    x86 hw implementation, but unfortunately I forgot about implicit function
    declarations.  GCC before 7 did have <cpuid.h> header and bit_SHA define
    and __get_cpuid function defined inline, but it didn't define
    __get_cpuid_count, which compiled fine (and the configure test is
    intentionally compile time only) due to implicit function declaration,
    but then failed to link when linking the linker, because
    __get_cpuid_count wasn't defined anywhere.

    The following patch fixes that by using what autoconf uses in AC_CHECK_DECL
    to make sure the functions are declared.

commit 691858d279335eeeeed3afafdf872b1c5f8f4201
Author: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
Date:   Tue Dec 5 11:04:06 2023 +0100

    libiberty: Fix pex_unix_wait return type

    The recent warning patches broke Solaris bootstrap:

    /vol/gcc/src/hg/master/local/libiberty/pex-unix.c:326:3: error: initialization of 'pid_t (*)(struct pex_obj *, pid_t,  int *, struct pex_time *, int,  const char **, int *)' {aka 'long int (*)(struct pex_obj *, long int,  int *, struct pex_time *, int,  const char **, int *)'} from incompatible pointer type 'int (*)(struct pex_obj *, pid_t,  int *, struct pex_time *, int,  const char **, int *)' {aka 'int (*)(struct pex_obj *, long int,  int *, struct pex_time *, int,  const char **, int *)'} [-Wincompatible-pointer-types]
      326 |   pex_unix_wait,
          |   ^~~~~~~~~~~~~
    /vol/gcc/src/hg/master/local/libiberty/pex-unix.c:326:3: note: (near initialization for 'funcs.wait')

    While pex_funcs.wait expects a function returning pid_t, pex_unix_wait
    currently returns int.  However, on Solaris pid_t is long for 32-bit,
    but int for 64-bit.

    This patches fixes this by having pex_unix_wait return pid_t as
    expected, and like every other variant already does.

    Bootstrapped without regressions on i386-pc-solaris2.11,
    sparc-sun-solaris2.11, x86_64-pc-linux-gnu, and
    x86_64-apple-darwin23.1.0.

commit c3f281a0c1ca50e4df5049923aa2f5d1c3c39ff6
Author: Jason Merrill <jason@redhat.com>
Date:   Mon Sep 25 10:15:02 2023 +0100

    c++: mangle function template constraints

    Per https://github.com/itanium-cxx-abi/cxx-abi/issues/24 and
    https://github.com/itanium-cxx-abi/cxx-abi/pull/166

    We need to mangle constraints to be able to distinguish between function
    templates that only differ in constraints.  From the latter link, we want to
    use the template parameter mangling previously specified for lambdas to also
    make explicit the form of a template parameter where the argument is not a
    "natural" fit for it, such as when the parameter is constrained or deduced.

    I'm concerned about how the latter link changes the mangling for some C++98
    and C++11 patterns, so I've limited template_parm_natural_p to avoid two
    cases found by running the testsuite with -Wabi forced on:

    template <class T, T V> T f() { return V; }
    int main() { return f<int,42>(); }

    template <int i> int max() { return i; }
    template <int i, int j, int... rest> int max()
    {
      int sub = max<j, rest...>();
      return i > sub ? i : sub;
    }
    int main() {  return max<1,2,3>(); }

    A third C++11 pattern is changed by this patch:

    template <template <typename...> class TT, typename... Ts> TT<Ts...> f();
    template <typename> struct A { };
    int main() { f<A,int>(); }

    I aim to resolve these with the ABI committee before GCC 14.1.

    We also need to resolve https://github.com/itanium-cxx-abi/cxx-abi/issues/38
    (mangling references to dependent template-ids where the name is fully
    resolved) as references to concepts in std:: will consistently run into this
    area.  This is why mangle-concepts1.C only refers to concepts in the global
    namespace so far.

    The library changes are to avoid trying to mangle builtins, which fails.

    Demangler support and test coverage is not complete yet.

commit f2c52c0dfde581461959b0e2b423ad106aadf179
Author: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
Date:   Thu Nov 30 10:06:23 2023 +0100

    libiberty: Disable hwcaps for sha1.o

    This patch

    commit bf4f40cc3195eb7b900bf5535cdba1ee51fdbb8e
    Author: Jakub Jelinek <jakub@redhat.com>
    Date:   Tue Nov 28 13:14:05 2023 +0100

        libiberty: Use x86 HW optimized sha1

    broke Solaris/x86 bootstrap with the native as:

    libtool: compile:  /var/gcc/regression/master/11.4-gcc/build/./gcc/gccgo -B/var/gcc/regression/master/11.4-gcc/build/./gcc/ -B/vol/gcc/i386-pc-solaris2.11/bin/ -B/vol/gcc/i386-pc-solaris2.11/lib/ -isystem /vol/gcc/i386-pc-solaris2.11/include -isystem /vol/gcc/i386-pc-solaris2.11/sys-include -fchecking=1 -minline-all-stringops -O2 -g -I . -c -fgo-pkgpath=internal/goarch /vol/gcc/src/hg/master/local/libgo/go/internal/goarch/goarch.go zgoarch.go
    ld.so.1: go1: fatal: /var/gcc/regression/master/11.4-gcc/build/gcc/go1: hardware capability (CA_SUNW_HW_2) unsupported: 0x4000000  [ SHA1 ]
    gccgo: fatal error: Killed signal terminated program go1

    As is already done in a couple of other similar cases, this patches
    disables hwcaps support for libiberty.

    Initially, this didn't work because config/hwcaps.m4 uses target_os, but
    didn't ensure it is defined.

    Tested on i386-pc-solaris2.11 with as and gas.

commit bf4f40cc3195eb7b900bf5535cdba1ee51fdbb8e
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue Nov 28 13:14:05 2023 +0100

    libiberty: Use x86 HW optimized sha1

    Nick has approved this patch (+ small ld change to use it for --build-id=),
    so I'm commiting it to GCC as master as well.

    If anyone from ARM would be willing to implement it similarly with
    vsha1{cq,mq,pq,h,su0q,su1q}_u32 intrinsics, it could be a useful linker
    speedup on those hosts as well, the intent in sha1.c was that
    sha1_hw_process_bytes, sha1_hw_process_block functions
    would be defined whenever
    defined (HAVE_X86_SHA1_HW_SUPPORT) || defined (HAVE_WHATEVERELSE_SHA1_HW_SUPPORT)
    but the body of sha1_hw_process_block and sha1_choose_process_bytes
    would then have #elif defined (HAVE_WHATEVERELSE_SHA1_HW_SUPPORT) for
    the other arch support, similarly for any target attributes on
    sha1_hw_process_block if needed.

commit 01bc30b222a9d2ff0269325d9e367f8f1fcef942
Author: Mark Wielaard <mjw@redhat.com>
Date:   Wed Nov 15 20:27:08 2023 +0100

    Regenerate libiberty/aclocal.m4 with aclocal 1.15.1

    There is a new buildbot check that all autotool files are generated
    with the correct versions (automake 1.15.1 and autoconf 2.69).
    https://builder.sourceware.org/buildbot/#/builders/gcc-autoregen

    Correct one file that was generated with the wrong version.

commit 879cf9ff45d94065d89e24b71c6b27c7076ac518
Author: Brendan Shanks <bshanks@codeweavers.com>
Date:   Thu Nov 9 21:01:07 2023 -0700

    [PATCH v3] libiberty: Use posix_spawn in pex-unix when available.

    Hi,

    This patch implements pex_unix_exec_child using posix_spawn when
    available.

    This should especially benefit recent macOS (where vfork just calls
    fork), but should have equivalent or faster performance on all
    platforms.
    In addition, the implementation is substantially simpler than the
    vfork+exec code path.

    Tested on x86_64-linux.

    v2: Fix error handling (previously the function would be run twice in
    case of error), and don't use a macro that changes control flow.

    v3: Match file style for error-handling blocks, don't close
    in/out/errdes on error, and check close() for errors.

commit 810bcc00156cefce7ad40fc9d8de6e43c3a04450
Author: Jason Merrill <jason@redhat.com>
Date:   Thu Aug 17 11:36:23 2023 -0400

    c++: constrained hidden friends [PR109751]

    r13-4035 avoided a problem with overloading of constrained hidden friends by
    checking satisfaction, but checking satisfaction early is inconsistent with
    the usual late checking and can lead to hard errors, so let's not do that
    after all.

    We were wrongly treating the different instantiations of the same friend
    template as the same function because maybe_substitute_reqs_for was failing
    to actually substitute in the case of a non-template friend.  But we don't
    actually need to do the substitution anyway, because [temp.friend] says that
    such a friend can't be the same as any other declaration.

    After fixing that, instead of a redefinition error we got an ambiguous
    overload error, fixed by allowing constrained hidden friends to coexist
    until overload resolution, at which point they probably won't be in the same
    ADL overload set anyway.

    And we avoid mangling collisions by following the proposed mangling for
    these friends as a member function with an extra 'F' before the name.  I
    demangle this by just adding [friend] to the name of the function because
    it's not feasible to reconstruct the actual scope of the function since the
    mangling ABI doesn't distinguish between class and namespace scopes.

            PR c++/109751
2024-01-09 12:34:00 +00:00

590 lines
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/* config.in. Generated from configure.ac by autoheader. */
/* Define if building universal (internal helper macro) */
#undef AC_APPLE_UNIVERSAL_BUILD
/* Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP systems.
This function is required for alloca.c support on those systems. */
#undef CRAY_STACKSEG_END
/* Define to 1 if you have the <alloca.h> header file. */
#undef HAVE_ALLOCA_H
/* Define to 1 if you have the `asprintf' function. */
#undef HAVE_ASPRINTF
/* Define to 1 if you have the `atexit' function. */
#undef HAVE_ATEXIT
/* Define to 1 if you have the `basename' function. */
#undef HAVE_BASENAME
/* Define to 1 if you have the `bcmp' function. */
#undef HAVE_BCMP
/* Define to 1 if you have the `bcopy' function. */
#undef HAVE_BCOPY
/* Define to 1 if you have the `bsearch' function. */
#undef HAVE_BSEARCH
/* Define to 1 if you have the `bzero' function. */
#undef HAVE_BZERO
/* Define to 1 if you have the `calloc' function. */
#undef HAVE_CALLOC
/* Define to 1 if you have the `canonicalize_file_name' function. */
#undef HAVE_CANONICALIZE_FILE_NAME
/* Define to 1 if you have the `clock' function. */
#undef HAVE_CLOCK
/* Define to 1 if you have the declaration of `asprintf', and to 0 if you
don't. */
#undef HAVE_DECL_ASPRINTF
/* Define to 1 if you have the declaration of `basename(char *)', and to 0 if
you don't. */
#undef HAVE_DECL_BASENAME
/* Define to 1 if you have the declaration of `calloc', and to 0 if you don't.
*/
#undef HAVE_DECL_CALLOC
/* Define to 1 if you have the declaration of `ffs', and to 0 if you don't. */
#undef HAVE_DECL_FFS
/* Define to 1 if you have the declaration of `getenv', and to 0 if you don't.
*/
#undef HAVE_DECL_GETENV
/* Define to 1 if you have the declaration of `getopt', and to 0 if you don't.
*/
#undef HAVE_DECL_GETOPT
/* Define to 1 if you have the declaration of `malloc', and to 0 if you don't.
*/
#undef HAVE_DECL_MALLOC
/* Define to 1 if you have the declaration of `realloc', and to 0 if you
don't. */
#undef HAVE_DECL_REALLOC
/* Define to 1 if you have the declaration of `sbrk', and to 0 if you don't.
*/
#undef HAVE_DECL_SBRK
/* Define to 1 if you have the declaration of `snprintf', and to 0 if you
don't. */
#undef HAVE_DECL_SNPRINTF
/* Define to 1 if you have the declaration of `strnlen', and to 0 if you
don't. */
#undef HAVE_DECL_STRNLEN
/* Define to 1 if you have the declaration of `strtol', and to 0 if you don't.
*/
#undef HAVE_DECL_STRTOL
/* Define to 1 if you have the declaration of `strtoll', and to 0 if you
don't. */
#undef HAVE_DECL_STRTOLL
/* Define to 1 if you have the declaration of `strtoul', and to 0 if you
don't. */
#undef HAVE_DECL_STRTOUL
/* Define to 1 if you have the declaration of `strtoull', and to 0 if you
don't. */
#undef HAVE_DECL_STRTOULL
/* Define to 1 if you have the declaration of `strverscmp', and to 0 if you
don't. */
#undef HAVE_DECL_STRVERSCMP
/* Define to 1 if you have the declaration of `vasprintf', and to 0 if you
don't. */
#undef HAVE_DECL_VASPRINTF
/* Define to 1 if you have the declaration of `vsnprintf', and to 0 if you
don't. */
#undef HAVE_DECL_VSNPRINTF
/* Define to 1 if you have the `dup3' function. */
#undef HAVE_DUP3
/* Define to 1 if you have the <fcntl.h> header file. */
#undef HAVE_FCNTL_H
/* Define to 1 if you have the `ffs' function. */
#undef HAVE_FFS
/* Define to 1 if you have the `fork' function. */
#undef HAVE_FORK
/* Define to 1 if you have the `getcwd' function. */
#undef HAVE_GETCWD
/* Define to 1 if you have the `getpagesize' function. */
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/* Define to 1 if you have the `getrlimit' function. */
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/* Define to 1 if you have the `getrusage' function. */
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/* Define to 1 if you have the `getsysinfo' function. */
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/* Define to 1 if you have the `gettimeofday' function. */
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/* Define to 1 if you have the `index' function. */
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/* Define to 1 if you have the `insque' function. */
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/* Define to 1 if the system has the type `intptr_t'. */
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/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define to 1 if you have the <limits.h> header file. */
#undef HAVE_LIMITS_H
/* Define if you have the `long long' type. */
#undef HAVE_LONG_LONG
/* Define to 1 if you have the <machine/hal_sysinfo.h> header file. */
#undef HAVE_MACHINE_HAL_SYSINFO_H
/* Define to 1 if you have the <malloc.h> header file. */
#undef HAVE_MALLOC_H
/* Define to 1 if you have the `memchr' function. */
#undef HAVE_MEMCHR
/* Define to 1 if you have the `memcmp' function. */
#undef HAVE_MEMCMP
/* Define to 1 if you have the `memcpy' function. */
#undef HAVE_MEMCPY
/* Define to 1 if you have the `memmem' function. */
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/* Define to 1 if you have the `memmove' function. */
#undef HAVE_MEMMOVE
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 if you have the `memset' function. */
#undef HAVE_MEMSET
/* Define to 1 if you have the `mkstemps' function. */
#undef HAVE_MKSTEMPS
/* Define to 1 if you have a working `mmap' system call. */
#undef HAVE_MMAP
/* Define to 1 if you have the `on_exit' function. */
#undef HAVE_ON_EXIT
/* Define to 1 if you have the `pipe2' function. */
#undef HAVE_PIPE2
/* Define to 1 if you have the `posix_spawn' function. */
#undef HAVE_POSIX_SPAWN
/* Define to 1 if you have the `posix_spawnp' function. */
#undef HAVE_POSIX_SPAWNP
/* Define to 1 if you have the <process.h> header file. */
#undef HAVE_PROCESS_H
/* Define to 1 if you have the `psignal' function. */
#undef HAVE_PSIGNAL
/* Define to 1 if you have the `pstat_getdynamic' function. */
#undef HAVE_PSTAT_GETDYNAMIC
/* Define to 1 if you have the `pstat_getstatic' function. */
#undef HAVE_PSTAT_GETSTATIC
/* Define to 1 if you have the `putenv' function. */
#undef HAVE_PUTENV
/* Define to 1 if you have the `random' function. */
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/* Define to 1 if you have the `realpath' function. */
#undef HAVE_REALPATH
/* Define to 1 if you have the `rename' function. */
#undef HAVE_RENAME
/* Define to 1 if you have the `rindex' function. */
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/* Define to 1 if you have the `sbrk' function. */
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/* Define to 1 if you have the `setenv' function. */
#undef HAVE_SETENV
/* Define to 1 if you have the `setproctitle' function. */
#undef HAVE_SETPROCTITLE
/* Define to 1 if you have the `setrlimit' function. */
#undef HAVE_SETRLIMIT
/* Define to 1 if you have the `sigsetmask' function. */
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/* Define to 1 if you have the `snprintf' function. */
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/* Define to 1 if you have the `spawnve' function. */
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/* Define to 1 if you have the `spawnvpe' function. */
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/* Define to 1 if you have the <spawn.h> header file. */
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/* Define to 1 if you have the <stdint.h> header file. */
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/* Define to 1 if you have the <stdio_ext.h> header file. */
#undef HAVE_STDIO_EXT_H
/* Define to 1 if you have the <stdlib.h> header file. */
#undef HAVE_STDLIB_H
/* Define to 1 if you have the `stpcpy' function. */
#undef HAVE_STPCPY
/* Define to 1 if you have the `stpncpy' function. */
#undef HAVE_STPNCPY
/* Define to 1 if you have the `strcasecmp' function. */
#undef HAVE_STRCASECMP
/* Define to 1 if you have the `strchr' function. */
#undef HAVE_STRCHR
/* Define to 1 if you have the `strdup' function. */
#undef HAVE_STRDUP
/* Define to 1 if you have the `strerror' function. */
#undef HAVE_STRERROR
/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#undef HAVE_STRING_H
/* Define to 1 if you have the `strncasecmp' function. */
#undef HAVE_STRNCASECMP
/* Define to 1 if you have the `strndup' function. */
#undef HAVE_STRNDUP
/* Define to 1 if you have the `strnlen' function. */
#undef HAVE_STRNLEN
/* Define to 1 if you have the `strrchr' function. */
#undef HAVE_STRRCHR
/* Define to 1 if you have the `strsignal' function. */
#undef HAVE_STRSIGNAL
/* Define to 1 if you have the `strstr' function. */
#undef HAVE_STRSTR
/* Define to 1 if you have the `strtod' function. */
#undef HAVE_STRTOD
/* Define to 1 if you have the `strtol' function. */
#undef HAVE_STRTOL
/* Define to 1 if you have the `strtoll' function. */
#undef HAVE_STRTOLL
/* Define to 1 if you have the `strtoul' function. */
#undef HAVE_STRTOUL
/* Define to 1 if you have the `strtoull' function. */
#undef HAVE_STRTOULL
/* Define to 1 if you have the `strverscmp' function. */
#undef HAVE_STRVERSCMP
/* Define to 1 if you have the `sysconf' function. */
#undef HAVE_SYSCONF
/* Define to 1 if you have the `sysctl' function. */
#undef HAVE_SYSCTL
/* Define to 1 if you have the `sysmp' function. */
#undef HAVE_SYSMP
/* Define if you have the sys_errlist variable. */
#undef HAVE_SYS_ERRLIST
/* Define to 1 if you have the <sys/file.h> header file. */
#undef HAVE_SYS_FILE_H
/* Define to 1 if you have the <sys/mman.h> header file. */
#undef HAVE_SYS_MMAN_H
/* Define if you have the sys_nerr variable. */
#undef HAVE_SYS_NERR
/* Define to 1 if you have the <sys/param.h> header file. */
#undef HAVE_SYS_PARAM_H
/* Define to 1 if you have the <sys/prctl.h> header file. */
#undef HAVE_SYS_PRCTL_H
/* Define to 1 if you have the <sys/pstat.h> header file. */
#undef HAVE_SYS_PSTAT_H
/* Define to 1 if you have the <sys/resource.h> header file. */
#undef HAVE_SYS_RESOURCE_H
/* Define if you have the sys_siglist variable. */
#undef HAVE_SYS_SIGLIST
/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/sysctl.h> header file. */
#undef HAVE_SYS_SYSCTL_H
/* Define to 1 if you have the <sys/sysinfo.h> header file. */
#undef HAVE_SYS_SYSINFO_H
/* Define to 1 if you have the <sys/sysmp.h> header file. */
#undef HAVE_SYS_SYSMP_H
/* Define to 1 if you have the <sys/systemcfg.h> header file. */
#undef HAVE_SYS_SYSTEMCFG_H
/* Define to 1 if you have the <sys/table.h> header file. */
#undef HAVE_SYS_TABLE_H
/* Define to 1 if you have the <sys/time.h> header file. */
#undef HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
#undef HAVE_SYS_WAIT_H
/* Define to 1 if you have the `table' function. */
#undef HAVE_TABLE
/* Define to 1 if you have the `times' function. */
#undef HAVE_TIMES
/* Define to 1 if you have the <time.h> header file. */
#undef HAVE_TIME_H
/* Define to 1 if you have the `tmpnam' function. */
#undef HAVE_TMPNAM
/* Define if you have the \`uintptr_t' type. */
#undef HAVE_UINTPTR_T
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to 1 if you have the `vasprintf' function. */
#undef HAVE_VASPRINTF
/* Define to 1 if you have the `vfork' function. */
#undef HAVE_VFORK
/* Define to 1 if you have the <vfork.h> header file. */
#undef HAVE_VFORK_H
/* Define to 1 if you have the `vfprintf' function. */
#undef HAVE_VFPRINTF
/* Define to 1 if you have the `vprintf' function. */
#undef HAVE_VPRINTF
/* Define to 1 if you have the `vsprintf' function. */
#undef HAVE_VSPRINTF
/* Define to 1 if you have the `wait3' function. */
#undef HAVE_WAIT3
/* Define to 1 if you have the `wait4' function. */
#undef HAVE_WAIT4
/* Define to 1 if you have the `waitpid' function. */
#undef HAVE_WAITPID
/* Define to 1 if `fork' works. */
#undef HAVE_WORKING_FORK
/* Define to 1 if `vfork' works. */
#undef HAVE_WORKING_VFORK
/* Define if you have x86 SHA1 HW acceleration support. */
#undef HAVE_X86_SHA1_HW_SUPPORT
/* Define to 1 if you have the `_doprnt' function. */
#undef HAVE__DOPRNT
/* Define if you have the _system_configuration variable. */
#undef HAVE__SYSTEM_CONFIGURATION
/* Define to 1 if you have the `__fsetlocking' function. */
#undef HAVE___FSETLOCKING
/* Define if canonicalize_file_name is not declared in system header files. */
#undef NEED_DECLARATION_CANONICALIZE_FILE_NAME
/* Define if errno must be declared even when <errno.h> is included. */
#undef NEED_DECLARATION_ERRNO
/* Define to 1 if your C compiler doesn't accept -c and -o together. */
#undef NO_MINUS_C_MINUS_O
/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT
/* Define to the full name of this package. */
#undef PACKAGE_NAME
/* Define to the full name and version of this package. */
#undef PACKAGE_STRING
/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME
/* Define to the home page for this package. */
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/* Define to the version of this package. */
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/* The size of `int', as computed by sizeof. */
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/* The size of `long', as computed by sizeof. */
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/* The size of `long long', as computed by sizeof. */
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/* The size of `size_t', as computed by sizeof. */
#undef SIZEOF_SIZE_T
/* Define if you know the direction of stack growth for your system; otherwise
it will be automatically deduced at run-time. STACK_DIRECTION > 0 => grows
toward higher addresses STACK_DIRECTION < 0 => grows toward lower addresses
STACK_DIRECTION = 0 => direction of growth unknown */
#undef STACK_DIRECTION
/* Define to 1 if you have the ANSI C header files. */
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/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
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/* Define to an unsigned 64-bit type available in the compiler. */
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/* Enable extensions on AIX 3, Interix. */
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/* Enable GNU extensions on systems that have them. */
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/* Enable threading extensions on Solaris. */
#ifndef _POSIX_PTHREAD_SEMANTICS
# undef _POSIX_PTHREAD_SEMANTICS
#endif
/* Enable extensions on HP NonStop. */
#ifndef _TANDEM_SOURCE
# undef _TANDEM_SOURCE
#endif
/* Enable general extensions on Solaris. */
#ifndef __EXTENSIONS__
# undef __EXTENSIONS__
#endif
/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
significant byte first (like Motorola and SPARC, unlike Intel). */
#if defined AC_APPLE_UNIVERSAL_BUILD
# if defined __BIG_ENDIAN__
# define WORDS_BIGENDIAN 1
# endif
#else
# ifndef WORDS_BIGENDIAN
# undef WORDS_BIGENDIAN
# endif
#endif
/* Enable large inode numbers on Mac OS X 10.5. */
#ifndef _DARWIN_USE_64_BIT_INODE
# define _DARWIN_USE_64_BIT_INODE 1
#endif
/* Number of bits in a file offset, on hosts where this is settable. */
#undef _FILE_OFFSET_BITS
/* Define for large files, on AIX-style hosts. */
#undef _LARGE_FILES
/* Define to 1 if on MINIX. */
#undef _MINIX
/* Define to 2 if the system does not provide POSIX.1 features except with
this defined. */
#undef _POSIX_1_SOURCE
/* Define to 1 if you need to in order for `stat' and other things to work. */
#undef _POSIX_SOURCE
/* Define to empty if `const' does not conform to ANSI C. */
#undef const
/* Define to `__inline__' or `__inline' if that's what the C compiler
calls it, or to nothing if 'inline' is not supported under any name. */
#ifndef __cplusplus
#undef inline
#endif
/* 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. */
#undef intptr_t
/* Define to `int' if <sys/types.h> does not define. */
#undef pid_t
/* Define to `int' if <sys/types.h> does not define. */
#undef ssize_t
/* 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. */
#undef uintptr_t
/* Define as `fork' if `vfork' does not work. */
#undef vfork
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