persistent_add TMP_MUTT_OPTS &&
TMP_MUTT_OPTS="" &&

optional_depends   "MAIL-TRANSPORT-AGENT"                       \
                   ""                                           \
                   ""                                           \
                   "to send mail"                               &&
                    
if [[ "$BRANCH" == "scm" ]]; then 
	depends mercurial
fi &&

config_query_list TERMINAL_LIBRARY                              \
                  "Build against which terminal library?"       \
                  ncurses slang                                 &&
TMP_MUTT_OPTS="${TMP_MUTT_OPTS} --with-${TERMINAL_LIBRARY}"     &&
depends "${TERMINAL_LIBRARY}"                                   &&

optional_depends   "gnupg"                                      \
                   ""                                           \
                   "--disable-pgp"                              \
                   "to support PGP signing and encrypting messages" &&

if [[ "$BRANCH" != "stable" ]]; then
  # Do NOT add --with-ssl here, that only works if POP/IMAP are used.  This is
  # mostly just here to prompt for openssl if they don't have it and want
  # S/MIME.
  optional_depends "openssl"                                    \
                   ""                                           \
                   ""                                           \
                   "to support S/MIME signing and encrypting messages" &&

  optional_depends "gpgme"                                      \
                   "--enable-gpgme"                             \
                   ""                                           \
                   "alternate backend for PGP and S/MIME"       &&

  if list_find "${MUTT_OPTS}" "--enable-hcache"; then
    config_query_list HCACHE_BACKEND                            \
                      "Use which header cache backend?"         \
                      gdbm db                                   &&
    if [[ "$HCACHE_BACKEND" == "db" ]]; then
      TMP_MUTT_OPTS="${TMP_MUTT_OPTS} --without-gdbm --with-bdb"
    fi &&
    depends "${HCACHE_BACKEND}"
  fi &&

  optional_depends "libidn"                                     \
                   "--with-idn"                                 \
                   ""                                           \
                   "to use GNU libidn for domain names"
fi &&

if list_find "${MUTT_OPTS}" "--enable-pop" || list_find "${MUTT_OPTS}" "--enable-imap"; then
  # If they have POP/IMAP then prompt again for openssl to get --with-ssl.
  optional_depends "openssl"                                    \
                   "--with-ssl"                                 \
                   ""                                           \
                   "to enable SSL support for POP/IMAP"         &&

  if [[ "$BRANCH" != "stable" ]]; then
    optional_depends "gnutls"                                   \
                     "--with-gnutls"                            \
                     ""                                         \
                     "to enable SSL support for POP/IMAP via gnutls" &&

    optional_depends "cyrus-sasl"                               \
                     "--with-sasl2"                             \
                     ""                                         \
                     "to enable SASL2 authentication for POP/IMAP"
  fi
fi &&

if list_find "${MUTT_OPTS}" "--enable-imap"; then
  optional_depends "krb5"                                       \
                   "--with-gss"                                 \
                   ""                                           \
                   "to enable GSSAPI authentication for IMAP"
fi &&

if [[ ! -z "$REAL_PATCHES" ]] || [[ "$BRANCH" == "scm" ]]; then
  depends "automake"
fi &&

for PATCH in ${REAL_PATCHES}; do
  if [[ -x "$PATCH_DIRECTORY/$PATCH/PATCH_DEPENDS" ]]; then
    . "$PATCH_DIRECTORY/$PATCH/PATCH_DEPENDS"
  fi
done

if [[ "$UPDATE_DOC" == "y" ]]; then
  depends linuxdoc-tools
fi