AC_MSG_RESULT(no),

AC_MSG_RESULT(assuming not on target machine))

AC_MSG_CHECKING(whether 'long long int' is 64 bits using %qd)

AC_TRY_RUN([#include <stdio.h>

typedef long long int int64;

#define INT64_FORMAT "%qd"

int64 a = 20000001;

int64 b = 40000005;

int does_int64_work()

{

int64 c,d,e;

char buf[100];

if (sizeof(int64) != 8)

return 0;/* doesn't look like the right size */

/* we do perfunctory checks on multiply, divide, sprintf, sscanf */

c = a * b;

sprintf(buf, INT64_FORMAT, c);

if (strcmp(buf, "800000140000005") != 0)

return 0;/* either multiply or sprintf is busted */

if (sscanf(buf, INT64_FORMAT, &d) != 1)

return 0;

if (d != c)

return 0;

e = d / b;

if (e != a)

return 0;

return 1;

}

main() {

exit(! does_int64_work());

}],

[AC_DEFINE(HAVE_LONG_LONG_INT_64_qd) AC_MSG_RESULT(yes)],

AC_MSG_RESULT(no),

AC_MSG_RESULT(assuming not on target machine))

dnl Checks for library functions.

AC_PROG_GCC_TRADITIONAL

AC_FUNC_MEMCMP

#undef HAVE_LONG_LONG_INT_64_lld

#undef HAVE_LONG_LONG_INT_64_qd

#defineINT64_FORMAT "%lld"

typedeflong longintint64;

#defineINT64_FORMAT "%qd"

typedeflongintint64;

#defineINT64_FORMAT "%ld"

externint64*int8in(char*str);

externchar*int8out(int64*val);