AC_DEFUN([DOVECOT_WANT_NSS], [

have_nss=no

if test $want_nss != no; then

if test $have_modules != yes; then

if test $want_nss = yes; then

AC_ERROR([Can't build with NSS support: Dynamic modules not supported])

fi

else

AC_CACHE_CHECK([for NSS support],i_cv_have_nss,[

AC_TRY_COMPILE([

#include <nss.h>

], [

enum nss_status status = NSS_STATUS_TRYAGAIN;

], [

i_cv_have_nss=yes

], [

i_cv_have_nss=no

])

])

if test $i_cv_have_nss = yes; then

AC_DEFINE(USERDB_NSS,, [Build with NSS module support])

have_nss=yes

else

if test $want_nss = yes; then

AC_ERROR([Can't build with NSS support: nss.h not found or not usable])

fi

fi

fi

fi

if test $have_nss = no; then

not_userdb="$not_userdb nss"

else

userdb="$userdb nss"

fi

])