dnl Internal subroutine of AC_SYS_LARGEFILE.
dnl AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, CACHE-VAR, COMMENT, INCLUDES, FUNCTION-BODY)
-AC_DEFUN(AC_SYS_LARGEFILE_MACRO_VALUE,
+AC_DEFUN([AC_SYS_LARGEFILE_MACRO_VALUE],
[AC_CACHE_CHECK([for $1 value needed for large files], $3,
[$3=no
AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES
AC_DEFINE_UNQUOTED([$1], [$]$3, [$4])
fi])
-AC_DEFUN(AC_SYS_LARGEFILE,
+AC_DEFUN([AC_SYS_LARGEFILE],
[AC_ARG_ENABLE(largefile,
[ --disable-largefile omit support for large files])
if test "$enable_largefile" != no; then
[#include <stdio.h>], [return !ftello;])
fi
])
+
+dnl Check for socklen_t: historically on BSD it is an int, and in
+dnl POSIX 1g it is a type of its own, but some platforms use different
+dnl types for the argument to getsockopt, getpeername, etc. So we
+dnl have to test to find something that will work.
+
+dnl This is no good, because passing the wrong pointer on C compilers is
+dnl likely to only generate a warning, not an error. We don't call this at
+dnl the moment.
+
+AC_DEFUN([TYPE_SOCKLEN_T],
+[
+ AC_MSG_CHECKING([for socklen_t])
+ AC_CACHE_VAL([lftp_cv_socklen_t],
+ [
+ lftp_cv_socklen_t=no
+ AC_TRY_COMPILE([
+ #include <sys/types.h>
+ #include <sys/socket.h>
+ ],
+ [
+ socklen_t len;
+ getpeername(0,0,&len);
+ ],
+ [
+ lftp_cv_socklen_t=yes
+ ])
+ ])
+ AC_MSG_RESULT($lftp_cv_socklen_t)
+ if test $lftp_cv_socklen_t = no; then
+ AC_MSG_CHECKING([for socklen_t equivalent])
+ AC_CACHE_VAL([lftp_cv_socklen_t_equiv],
+ [
+ lftp_cv_socklen_t_equiv=int
+ AC_LANG_SAVE
+ for t in int size_t unsigned long "unsigned long"; do
+ AC_TRY_COMPILE([
+ #include <sys/types.h>
+ #include <sys/socket.h>
+ ],
+ [
+ $t len;
+ getpeername(0,0,&len);
+ ],
+ [
+ lftp_cv_socklen_t_equiv="$t"
+ break
+ ],
+ [
+ AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
+ ])
+ done
+ ])
+ AC_MSG_RESULT($lftp_cv_socklen_t_equiv)
+ AC_DEFINE_UNQUOTED(socklen_t, $lftp_cv_socklen_t_equiv,
+ [type to use in place of socklen_t if not defined])
+ fi
+])
+