configure

ｂｏａ：著名嵌入式系统网页服务器源代码。

#  else /* no HAVE_SYS_PARAM_H */
#   define getpagesize() 8192	/* punt totally */
#  endif /* no HAVE_SYS_PARAM_H */
# endif /* no _SC_PAGESIZE */

#endif /* no HAVE_GETPAGESIZE */

#ifdef __cplusplus
extern "C" { void *malloc(unsigned); }
#else
char *malloc();
#endif

int
main()
{
	char *data, *data2, *data3;
	int i, pagesize;
	int fd;

	pagesize = getpagesize();

	/*
	 * First, make a file with some known garbage in it.
	 */
	data = malloc(pagesize);
	if (!data)
		exit(1);
	for (i = 0; i < pagesize; ++i)
		*(data + i) = rand();
	umask(0);
	fd = creat("conftestmmap", 0600);
	if (fd < 0)
		exit(1);
	if (write(fd, data, pagesize) != pagesize)
		exit(1);
	close(fd);

	/*
	 * Next, try to mmap the file at a fixed address which
	 * already has something else allocated at it.  If we can,
	 * also make sure that we see the same garbage.
	 */
	fd = open("conftestmmap", O_RDWR);
	if (fd < 0)
		exit(1);
	data2 = malloc(2 * pagesize);
	if (!data2)
		exit(1);
	data2 += (pagesize - ((int) data2 & (pagesize - 1))) & (pagesize - 1);
	if (data2 != mmap(data2, pagesize, PROT_READ | PROT_WRITE,
	    MAP_PRIVATE | MAP_FIXED, fd, 0L))
		exit(1);
	for (i = 0; i < pagesize; ++i)
		if (*(data + i) != *(data2 + i))
			exit(1);

	/*
	 * Finally, make sure that changes to the mapped area
	 * do not percolate back to the file as seen by read().
	 * (This is a bug on some variants of i386 svr4.0.)
	 */
	for (i = 0; i < pagesize; ++i)
		*(data2 + i) = *(data2 + i) + 1;
	data3 = malloc(pagesize);
	if (!data3)
		exit(1);
	if (read(fd, data3, pagesize) != pagesize)
		exit(1);
	for (i = 0; i < pagesize; ++i)
		if (*(data + i) != *(data3 + i))
			exit(1);
	close(fd);
	unlink("conftestmmap");
	exit(0);
}

EOF
if { (eval echo configure:1840: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
then
  ac_cv_func_mmap_fixed_mapped=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -fr conftest*
  ac_cv_func_mmap_fixed_mapped=no
fi
rm -fr conftest*
fi

fi

echo "$ac_t""$ac_cv_func_mmap_fixed_mapped" 1>&6
if test $ac_cv_func_mmap_fixed_mapped = yes; then
  cat >> confdefs.h <<\EOF
#define HAVE_MMAP 1
EOF

fi

for ac_func in getcwd strdup strstr
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:1865: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1870 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func(); below.  */
#include <assert.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 $ac_func();

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_$ac_func) || defined (__stub___$ac_func)
choke me
#else
$ac_func();
#endif

; return 0; }
EOF
if { (eval echo configure:1893: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_func_$ac_func=yes"
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_func_$ac_func=no"
fi
rm -f conftest*
fi

if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
  echo "$ac_t""yes" 1>&6
    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
  cat >> confdefs.h <<EOF
#define $ac_tr_func 1
EOF
 
else
  echo "$ac_t""no" 1>&6
fi
done

for ac_func in gethostname gethostbyname select socket inet_aton
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:1920: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1925 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func(); below.  */
#include <assert.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 $ac_func();

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_$ac_func) || defined (__stub___$ac_func)
choke me
#else
$ac_func();
#endif

; return 0; }
EOF
if { (eval echo configure:1948: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_func_$ac_func=yes"
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_func_$ac_func=no"
fi
rm -f conftest*
fi

if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
  echo "$ac_t""yes" 1>&6
    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
  cat >> confdefs.h <<EOF
#define $ac_tr_func 1
EOF
 
else
  echo "$ac_t""no" 1>&6
fi
done

for ac_func in scandir alphasort
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:1975: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1980 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func(); below.  */
#include <assert.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 $ac_func();

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_$ac_func) || defined (__stub___$ac_func)
choke me
#else
$ac_func();
#endif

; return 0; }
EOF
if { (eval echo configure:2003: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_func_$ac_func=yes"
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_func_$ac_func=no"
fi
rm -f conftest*
fi

if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
  echo "$ac_t""yes" 1>&6
    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
  cat >> confdefs.h <<EOF
#define $ac_tr_func 1
EOF
 
else
  echo "$ac_t""no" 1>&6
fi
done



ac_safe_struct=`echo "tm" | sed 'y%./+-%__p_%'`
ac_safe_member=`echo "tm_gmtoff" | sed 'y%./+-%__p_%'`
ac_safe_all="ac_cv_struct_${ac_safe_struct}_has_${ac_safe_member}"
  ac_uc_define=STRUCT_`echo "${ac_safe_struct}_HAS_${ac_safe_member}" | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`

echo $ac_n "checking for tm.tm_gmtoff""... $ac_c" 1>&6
echo "configure:2035: checking for tm.tm_gmtoff" >&5
if eval "test \"`echo '$''{'$ac_safe_all'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  
if test "x" = "x"; then
  defineit="= 0"
elif test "x" = "xno"; then
  defineit=""
else
  defineit=""
fi
cat > conftest.$ac_ext <<EOF
#line 2048 "configure"
#include "confdefs.h"


#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif


int main() {

struct tm testit;
testit.tm_gmtoff $defineit;

; return 0; }
EOF
if { (eval echo configure:2071: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  eval "${ac_safe_all}=yes"
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "${ac_safe_all}=no" 
fi
rm -f conftest*

fi


if eval "test \"x$`echo ${ac_safe_all}`\" = \"xyes\""; then
  echo "$ac_t""yes" 1>&6
  cat >> confdefs.h <<EOF
#define $ac_uc_define 1
EOF

else
  echo "$ac_t""no" 1>&6
fi


if test "$ac_cv_struct_tm_has_tm_gmtoff" = "yes"; then
  cat >> confdefs.h <<\EOF
#define HAVE_TM_GMTOFF 1
EOF

fi


ac_safe_struct=`echo "tm" | sed 'y%./+-%__p_%'`
ac_safe_member=`echo "tm_zone" | sed 'y%./+-%__p_%'`
ac_safe_all="ac_cv_struct_${ac_safe_struct}_has_${ac_safe_member}"
  ac_uc_define=STRUCT_`echo "${ac_safe_struct}_HAS_${ac_safe_member}" | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`

echo $ac_n "checking for tm.tm_zone""... $ac_c" 1>&6
echo "configure:2110: checking for tm.tm_zone" >&5
if eval "test \"`echo '$''{'$ac_safe_all'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  
if test "x" = "x"; then
  defineit="= 0"
elif test "x" = "xno"; then
  defineit=""
else
  defineit=""
fi
cat > conftest.$ac_ext <<EOF
#line 2123 "configure"
#include "confdefs.h"



#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif


int main() {

struct tm testit;
testit.tm_zone $defineit;

; return 0; }
EOF
if { (eval echo configure:2147: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  eval "${ac_safe_all}=yes"
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "${ac_safe_all}=no" 
fi
rm -f conftest*

fi


if eval "test \"x$`echo ${ac_safe_all}`\" = \"xyes\""; then
  echo "$ac_t""yes" 1>&6
  cat >> confdefs.h <<EOF
#define $ac_uc_define 1
EOF

else
  echo "$ac_t""no" 1>&6
fi


if test "$ac_cv_struct_tm_has_tm_zone" = "yes"; then
  cat >> confdefs.h <<\EOF
#define HAVE_TM_ZONE 1
EOF

fi


ac_safe_struct=`echo "sockaddr_in" | sed 'y%./+-%__p_%'`
ac_safe_member=`echo "sin_len" | sed 'y%./+-%__p_%'`
ac_safe_all="ac_cv_struct_${ac_safe_struct}_has_${ac_safe_member}"
  ac_uc_define=STRUCT_`echo "${ac_safe_struct}_HAS_${ac_safe_member}" | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`

echo $ac_n "checking for sockaddr_in.sin_len""... $ac_c" 1>&6
echo "configure:2186: checking for sockaddr_in.sin_len" >&5
if eval "test \"`echo '$''{'$ac_safe_all'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  
if test "x" = "x"; then
  defineit="= 0"
elif test "x" = "xno"; then
  defineit=""
else
  defineit=""
fi
cat > conftest.$ac_ext <<EOF
#line 2199