gethostbyname_r.m4 [plain text]
AC_DEFUN([ACX_WHICH_GETHOSTBYNAME_R],
[AC_CACHE_CHECK(number of arguments to gethostbyname_r,
acx_which_gethostbyname_r, [
AC_TRY_COMPILE([
], [
char *name;
struct hostent *he;
struct hostent_data data;
(void) gethostbyname_r(name, he, &data);
],acx_which_gethostbyname_r=3,
[
AC_TRY_COMPILE([
], [
char *name;
struct hostent *he, *res;
char *buffer = NULL;
int buflen = 2048;
int h_errnop;
(void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop)
],acx_which_gethostbyname_r=6,
[
AC_TRY_COMPILE([
], [
char *name;
struct hostent *he;
char *buffer = NULL;
int buflen = 2048;
int h_errnop;
(void) gethostbyname_r(name, he, buffer, buflen, &h_errnop)
],acx_which_gethostbyname_r=5,acx_which_gethostbyname_r=0)
]
)
]
)
])
if test $acx_which_gethostbyname_r -gt 0 ; then
AC_DEFINE_UNQUOTED([HAVE_GETHOSTBYNAME_R], $acx_which_gethostbyname_r,
[Number of parameters to gethostbyname_r or 0 if not available])
fi
])