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cares-functions.m4: add gethostname arg 2 data type check and definition

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This commit is contained in:
Yang Tse
2012-12-15 17:46:49 +01:00
parent a28e44c344
commit 9da14a847f
1 changed files with 29 additions and 1 deletions
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30
m4/cares-functions.m4
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@ -15,7 +15,7 @@
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
# serial 44
# serial 45
dnl CARES_INCLUDES_ARPA_INET
@ -1464,6 +1464,34 @@ AC_DEFUN([CARES_CHECK_FUNC_GETHOSTNAME], [
])
fi
#
if test "$tst_compi_gethostname" = "yes"; then
AC_MSG_CHECKING([for gethostname arg 2 data type])
tst_gethostname_type_arg2="unknown"
for tst_arg1 in 'char *' 'unsigned char *' 'void *'; do
for tst_arg2 in 'int' 'unsigned int' 'size_t'; do
if test "$tst_gethostname_type_arg2" = "unknown"; then
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
$cares_includes_winsock2
$cares_includes_unistd
]],[[
int gethostname($tst_arg1 name, $tst_arg2 namelen);
if(0 != gethostname(0, 0))
return 1;
]])
],[
tst_gethostname_type_arg2="$tst_arg2"
])
fi
done
done
AC_MSG_RESULT([$tst_gethostname_type_arg2])
if test "$tst_gethostname_type_arg2" != "unknown"; then
AC_DEFINE_UNQUOTED(GETHOSTNAME_TYPE_ARG2, $tst_gethostname_type_arg2,
[Define to the type of arg 2 for gethostname.])
fi
fi
#
if test "$tst_compi_gethostname" = "yes"; then
AC_MSG_CHECKING([if gethostname usage allowed])
if test "x$cares_disallow_gethostname" != "xyes"; then