dnl **

dnl ** AIX mntctl

dnl **

AC_DEFUN([DOVECOT_MNTCTL], [

if test $ac_cv_header_sys_vmount_h = yes; then

AC_MSG_CHECKING([for reasonable mntctl buffer size])

AC_RUN_IFELSE([AC_LANG_SOURCE([[

#include <stdio.h>

#include <stdlib.h>

#include <sys/vmount.h>

int main() {

int size,count; char *m;

FILE *f=fopen("conftestval", "w");

if (!f) exit(1);

if ((count=mntctl(MCTL_QUERY,sizeof(size),&size))!=0 || !(m=malloc(size)) ||

(count=mntctl(MCTL_QUERY,size,m))<=0) exit(1);

fprintf(f, "%d\n",(size * (count + 5))/count & ~1); /* 5 mounts more */

exit(0);

}

]])],[

size=`cat conftestval`

rm -f conftestval

AC_DEFINE_UNQUOTED(STATIC_MTAB_SIZE,$size, [reasonable mntctl buffer size])

AC_MSG_RESULT($size)

],[

AC_MSG_RESULT(default)

])

fi

])