This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

configure:743: checking for gcc
configure:856: checking whether the C compiler (cc -fno-common ) works
configure:872: cc -o conftest -fno-common   conftest.c  1>&5
configure:898: checking whether the C compiler (cc -fno-common ) is a cross-compiler
configure:903: checking whether we are using GNU C
configure:912: cc -E conftest.c
configure:931: checking whether cc accepts -g
configure:963: checking how to run the C preprocessor
configure:984: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1043: checking whether gmake sets ${MAKE}
configure:1208: checking for compiler option -pipe
configure:1246: checking for compilation debug mode
configure:1432: checking for compilation debug mode
configure:1440: checking for compilation profile mode
configure:1599: checking for compilation optimization mode
configure:1756: checking for 2.4 kernel patch
configure:1768: checking for ANSI C header files
configure:1781: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1848: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:1875: checking for stdio.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for stdlib.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for stdarg.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for string.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for signal.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for unistd.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for setjmp.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for fcntl.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for errno.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for sys/types.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for sys/time.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for sys/wait.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1875: checking for sys/socket.h
configure:1885: cc -E  conftest.c >/dev/null 2>conftest.out
configure:1913: checking for function gettimeofday
configure:1945: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:1913: checking for function select
configure:1945: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:1913: checking for function sigaction
configure:1945: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:1913: checking for function sigprocmask
configure:1945: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:1913: checking for function sigpending
configure:1945: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:1913: checking for function sigsuspend
configure:1945: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:2030: checking for number of signals
configure:2067: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:2087: checking for function poll
configure:2119: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:2144: checking for define POLLIN in poll.h
configure:2178: checking whether poll(2) facility has to be faked
configure:2224: checking for sys/uio.h
configure:2234: cc -E  conftest.c >/dev/null 2>conftest.out
configure:2262: checking for function readv
configure:2294: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:2262: checking for function writev
configure:2294: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:2319: checking whether readv(2)/writev(2) facility has to be faked
configure:2363: checking for function usleep
configure:2395: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:2363: checking for function strerror
configure:2395: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:2424: checking for sys/resource.h
configure:2434: cc -E  conftest.c >/dev/null 2>conftest.out
configure:2424: checking for net/errno.h
configure:2434: cc -E  conftest.c >/dev/null 2>conftest.out
configure:2430:23: net/errno.h: No such file or directory
configure: failed program was:
#line 2429 "configure"
#include "confdefs.h"
#include <net/errno.h>
configure:2462: checking for gethostname in -lnsl
configure:2481: cc -o conftest -fno-common -pipe   conftest.c -lnsl   1>&5
ld: can't locate file for: -lnsl
configure: failed program was:
#line 2470 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char gethostname();

int main() {
gethostname()
; return 0; }
configure:2510: checking for gethostbyname in -lnsl
configure:2529: cc -o conftest -fno-common -pipe   conftest.c -lnsl   1>&5
ld: can't locate file for: -lnsl
configure: failed program was:
#line 2518 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char gethostbyname();

int main() {
gethostbyname()
; return 0; }
configure:2558: checking for accept in -lsocket
configure:2577: cc -o conftest -fno-common -pipe   conftest.c -lsocket   1>&5
ld: can't locate file for: -lsocket
configure: failed program was:
#line 2566 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char accept();

int main() {
accept()
; return 0; }
configure:2609: checking for sys/signal.h
configure:2619: cc -E  conftest.c >/dev/null 2>conftest.out
configure:2655: checking for sys/select.h
configure:2665: cc -E  conftest.c >/dev/null 2>conftest.out
configure:2698: checking for typedef sig_atomic_t
configure:2735: checking for typedef pid_t
configure:2772: checking for typedef size_t
configure:2809: checking for typedef ssize_t
configure:2846: checking for typedef off_t
configure:2883: checking for typedef stack_t
configure:2915: checking for attribute ss_base in struct sigaltstack from sys/signal.h
configure:2935: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure: In function `main':
configure:2930: error: structure has no member named `ss_base'
configure:2930: error: structure has no member named `ss_base'
configure: failed program was:
#line 2921 "configure"
#include "confdefs.h"

#include <sys/types.h>
#include <sys/signal.h>

int main() {

struct sigaltstack *sp1;
struct sigaltstack *sp2;
sp1->ss_base = sp2->ss_base;

; return 0; }
configure:2955: checking for attribute ss_sp in struct sigaltstack from sys/signal.h
configure:2975: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:2996: checking for a single-argument based gettimeofday
configure:3013: cc -c -fno-common -pipe  conftest.c 1>&5
configure: In function `main':
configure:3008: error: too few arguments to function `gettimeofday'
configure: failed program was:
#line 2999 "configure"
#include "confdefs.h"

#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>

int main() {

struct timeval tv;
(void)gettimeofday(&tv);

; return 0; }
configure:3039: checking for struct timespec
configure:3054: cc -c -fno-common -pipe  conftest.c 1>&5
configure:3075: checking for typedef socklen_t
configure:3106: checking for type of argument 3 for accept()
configure:3170: checking for fallback socklen_t
configure:3197: checking for typedef nfds_t
configure:3228: checking for type of argument 2 for poll()
configure:3292: checking for fallback nfds_t
configure:3319: checking for built-in type long long
configure:3337: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:3356: checking for built-in type long double
configure:3374: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure: In function `main':
configure:3368: warning: use of `long double' type; its size may change in a future release
configure:3368: warning: (Long double usage is reported only once for each file.
configure:3368: warning: To disable this warning, use -Wno-long-double.)
configure:3405: checking for ucontext.h
configure:3415: cc -E  conftest.c >/dev/null 2>conftest.out
configure:3443: checking for function makecontext
configure:3475: cc -o conftest -fno-common -pipe   conftest.c  1>&5
ld: Undefined symbols:
_makecontext
configure: failed program was:
#line 3448 "configure"
#include "confdefs.h"

/* System header to define __stub macros and hopefully few prototypes,
   which can conflict with char makecontext(); below. */
#include <assert.h>
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply. */
char makecontext();
char (*f)();

int main() {

/* The GNU C library defines this for functions which it implements
   to always fail with ENOSYS.  Some functions are actually named
   something starting with __ and the normal name is an alias. */
#if defined (__stub_makecontext) || defined (__stub___makecontext)
choke me
#else
f = makecontext;
#endif

; return 0; }
configure:3443: checking for function swapcontext
configure:3475: cc -o conftest -fno-common -pipe   conftest.c  1>&5
ld: Undefined symbols:
_swapcontext
configure: failed program was:
#line 3448 "configure"
#include "confdefs.h"

/* System header to define __stub macros and hopefully few prototypes,
   which can conflict with char swapcontext(); below. */
#include <assert.h>
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply. */
char swapcontext();
char (*f)();

int main() {

/* The GNU C library defines this for functions which it implements
   to always fail with ENOSYS.  Some functions are actually named
   something starting with __ and the normal name is an alias. */
#if defined (__stub_swapcontext) || defined (__stub___swapcontext)
choke me
#else
f = swapcontext;
#endif

; return 0; }
configure:3443: checking for function getcontext
configure:3475: cc -o conftest -fno-common -pipe   conftest.c  1>&5
ld: Undefined symbols:
_getcontext
configure: failed program was:
#line 3448 "configure"
#include "confdefs.h"

/* System header to define __stub macros and hopefully few prototypes,
   which can conflict with char getcontext(); below. */
#include <assert.h>
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply. */
char getcontext();
char (*f)();

int main() {

/* The GNU C library defines this for functions which it implements
   to always fail with ENOSYS.  Some functions are actually named
   something starting with __ and the normal name is an alias. */
#if defined (__stub_getcontext) || defined (__stub___getcontext)
choke me
#else
f = getcontext;
#endif

; return 0; }
configure:3443: checking for function setcontext
configure:3475: cc -o conftest -fno-common -pipe   conftest.c  1>&5
ld: Undefined symbols:
_setcontext
configure: failed program was:
#line 3448 "configure"
#include "confdefs.h"

/* System header to define __stub macros and hopefully few prototypes,
   which can conflict with char setcontext(); below. */
#include <assert.h>
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply. */
char setcontext();
char (*f)();

int main() {

/* The GNU C library defines this for functions which it implements
   to always fail with ENOSYS.  Some functions are actually named
   something starting with __ and the normal name is an alias. */
#if defined (__stub_setcontext) || defined (__stub___setcontext)
choke me
#else
f = setcontext;
#endif

; return 0; }
configure:3501: checking for usable SVR4/SUSv2 makecontext(2)/swapcontext(2)
configure:3567: cc -o conftest -fno-common -pipe   conftest.c  1>&5
ld: Undefined symbols:
_getcontext
_makecontext
_swapcontext
configure: failed program was:
#line 3511 "configure"
#include "confdefs.h"


#include <stdio.h>
#include <stdlib.h>
#include <ucontext.h>

ucontext_t uc_child;
ucontext_t uc_main;

void child(void *arg)
{
    if (arg != (void *)12345)
        exit(1);
    if (swapcontext(&uc_child, &uc_main) != 0)
        exit(1);
}

int main(int argc, char *argv[])
{
    FILE *fp;
    void *stack;

    /* the default is that it fails */
    if ((fp = fopen("conftestval", "w")) == NULL)
        exit(1);
    fprintf(fp, "no\n");
    fclose(fp);

    /* configure a child user-space context */
    if ((stack = malloc(64*1024)) == NULL)
        exit(1);
    if (getcontext(&uc_child) != 0)
        exit(1);
    uc_child.uc_link = NULL;
    uc_child.uc_stack.ss_sp = (char *)stack+(32*1024);
    uc_child.uc_stack.ss_size = 32*1024;
    uc_child.uc_stack.ss_flags = 0;
    makecontext(&uc_child, child, 2, (void *)12345);

    /* switch into the user context */
    if (swapcontext(&uc_main, &uc_child) != 0)
        exit(1);

    /* Fine, child came home */
    if ((fp = fopen("conftestval", "w")) == NULL)
        exit(1);
    fprintf(fp, "yes\n");
    fclose(fp);

    /* die successfully */
    exit(0);
}

configure:3592: checking for signal.h
configure:3630: checking for function sigsetjmp
configure:3662: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:3630: checking for function siglongjmp
configure:3662: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:3630: checking for function setjmp
configure:3662: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:3630: checking for function longjmp
configure:3662: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:3630: checking for function _setjmp
configure:3662: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:3630: checking for function _longjmp
configure:3662: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:3688: checking for function sigaltstack
configure:3720: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:3688: checking for function sigstack
configure:3720: cc -o conftest -fno-common -pipe   conftest.c  1>&5
ld: Undefined symbols:
_sigstack
configure: failed program was:
#line 3693 "configure"
#include "confdefs.h"

/* System header to define __stub macros and hopefully few prototypes,
   which can conflict with char sigstack(); below. */
#include <assert.h>
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply. */
char sigstack();
char (*f)();

int main() {

/* The GNU C library defines this for functions which it implements
   to always fail with ENOSYS.  Some functions are actually named
   something starting with __ and the normal name is an alias. */
#if defined (__stub_sigstack) || defined (__stub___sigstack)
choke me
#else
f = sigstack;
#endif

; return 0; }
configure:3745: checking for signal-mask aware setjmp(3)/longjmp(3)
configure:3892: cc -o conftest -fno-common -pipe -DTEST_ssjlj   conftest.c  1>&5
configure:4067: checking for typedef stack_t
configure:4099: checking for need for separate stack
configure:4127: checking for direction of stack growth
configure:4167: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:4203: checking for function makecontext
configure:4261: checking for stack setup via makecontext
configure:4452: checking for function sigaltstack
configure:4514: checking for typedef stack_t
configure:4548: checking for stack setup via sigaltstack
configure:4700: cc -o conftest -fno-common -pipe -DTEST_sigaltstack   conftest.c  1>&5
configure:4738: checking for function sigstack
configure:4796: checking for stack setup via sigstack
configure:5059: checking for function syscall
configure:5091: cc -o conftest -fno-common -pipe   conftest.c  1>&5
configure:5119: checking for sys/syscall.h
configure:5129: cc -E  conftest.c >/dev/null 2>conftest.out
configure:5119: checking for sys/socketcall.h
configure:5129: cc -E  conftest.c >/dev/null 2>conftest.out
configure:5125:28: sys/socketcall.h: No such file or directory
configure: failed program was:
#line 5124 "configure"
#include "confdefs.h"
#include <sys/socketcall.h>
configure:5156: checking for define SYS_read in sys/syscall.h
configure:5191: checking whether soft system call mapping is used
configure:5213: checking whether hard system call mapping is used
configure:5284: checking whether to activate batch build mode
configure:5301: checking whether to activate maintainer build targets
configure:5315: checking whether to activate test build targets
configure:5332: checking whether to build Pthread library
configure:5363: checking for pthread.h
configure:5373: cc -E  conftest.c >/dev/null 2>conftest.out
configure:5640: checking whether to build against Sfio library
configure:5842: checking whether to build against Dmalloc library