+########################################################################### libao
+OLD_CPPFLAGS="$CPPFLAGS"
+OLD_LD_FLAGS="$LDFLAGS"
+OLD_LIBS="$LIBS"
+
+have_ao="yes"
+AC_ARG_WITH(ao_headers, [AC_HELP_STRING(--with-ao-headers=dir,
+ [look for ao/ao.h also in dir])])
+if test -n "$with_ao_headers"; then
+ ao_cppflags="-I$with_ao_headers"
+ CPPFLAGS="$CPPFLAGS $ao_cppflags"
+fi
+AC_ARG_WITH(ao_libs, [AC_HELP_STRING(--with-ao-libs=dir,
+ [look for libao also in dir])])
+if test -n "$with_ao_libs"; then
+ ao_libs="-L$with_ao_libs"
+ LDFLAGS="$LDFLAGS $ao_libs"
+fi
+msg="no libao support for para_audiod/para_write"
+AC_CHECK_HEADERS([ao/ao.h], [
+ ], [
+ have_ao="no"
+ AC_MSG_WARN([ao.h not found, $msg])
+])
+if test "$have_ao" = "yes"; then
+ AC_CHECK_LIB([ao], [ao_initialize], [], [
+ have_ao="no"
+ AC_MSG_WARN([ao lib not found or not working, $msg])
+ ])
+fi
+if test "$have_ao" = "yes"; then
+ AC_CHECK_HEADERS([pthread.h], [
+ ], [
+ have_ao="no"
+ AC_MSG_WARN([pthread.h not found, $msg])
+ ])
+fi
+if test "$have_ao" = "yes"; then
+ AC_CHECK_LIB([pthread], [pthread_create], [], [
+ have_ao="no"
+ AC_MSG_WARN([pthread lib not found or not working, $msg])
+ ])
+fi
+if test "$have_ao" = "yes"; then
+ all_errlist_objs="$all_errlist_objs ao_write"
+ audiod_errlist_objs="$audiod_errlist_objs ao_write"
+ audiod_cmdline_objs="$audiod_cmdline_objs add_cmdline(ao_write)"
+ audiod_ldflags="$audiod_ldflags -lao -lpthread"
+
+ write_errlist_objs="$write_errlist_objs ao_write"
+ write_cmdline_objs="$write_cmdline_objs add_cmdline(ao_write)"
+ write_ldflags="$write_ldflags $ao_libs -lao -lpthread"
+ writers="$writers ao"
+ AC_SUBST(ao_cppflags)
+fi
+
+CPPFLAGS="$OLD_CPPFLAGS"
+LDFLAGS="$OLD_LDFLAGS"
+LIBS="$OLD_LIBS"
+############################################################# readline
+OLD_CPPFLAGS="$CPPFLAGS"
+OLD_LD_FLAGS="$LDFLAGS"
+OLD_LIBS="$LIBS"
+
+have_readline="yes"
+AC_ARG_WITH(readline_headers, [AC_HELP_STRING(--with-readline-headers=dir,
+ [look for libreadline header files also in dir])])
+if test -n "$with_readline_headers"; then
+ readline_cppflags="-I$with_readline_headers"
+ CPPFLAGS="$CPPFLAGS $readline_cppflags"
+fi
+
+AC_ARG_WITH(readline_libs, [AC_HELP_STRING(--with-readline-libs=dir,
+ [look for readline library also in dir])])
+if test -n "$with_readline_libs"; then
+ readline_libs="-L$with_readline_libs"
+ LDFLAGS="$LDFLAGS $readline_libs"
+fi
+msg="no interactive cli support"
+AC_CHECK_HEADERS([readline/readline.h], [
+ ], [
+ have_readline="no"
+ AC_MSG_WARN([readline/readline.h not found, $msg])
+])
+if test "$have_readline" = "yes"; then
+ readline_libs="$readline_libs -lreadline"
+ AC_SEARCH_LIBS([rl_replace_line], [readline], [], [have_readline="no"])
+ if test "$have_readline" = "no"; then # try with -lcurses
+ # clear cache
+ AC_MSG_NOTICE([trying again with -lcurses])
+ unset ac_cv_search_rl_replace_line 2> /dev/null
+ AC_SEARCH_LIBS([rl_replace_line], [readline], [
+ have_readline=yes
+ readline_libs="$readline_libs -lcurses"
+ ], [], [-lcurses])
+ fi
+ if test "$have_readline" = "no"; then # try with -ltermcap
+ # clear cache
+ AC_MSG_NOTICE([trying again with -ltermcap])
+ unset ac_cv_search_rl_replace_line 2> /dev/null
+ AC_SEARCH_LIBS([rl_replace_line], [readline], [
+ have_readline=yes
+ readline_libs="$readline_libs -ltermcap"
+ ], [], [-ltermcap])
+ fi
+fi
+
+if test "$have_readline" = "yes"; then
+ all_errlist_objs="$all_errlist_objs interactive"
+ client_errlist_objs="$client_errlist_objs interactive"
+ client_ldflags="$client_ldflags $readline_libs"
+ audioc_errlist_objs="$audioc_errlist_objs buffer_tree interactive sched time"
+ audioc_ldflags="$audioc_ldflags $readline_libs"
+ AC_SUBST(readline_cppflags)
+ AC_DEFINE(HAVE_READLINE, 1, define to 1 to turn on readline support)
+else
+ AC_MSG_WARN([libreadline not found or unusable])
+fi
+CPPFLAGS="$OLD_CPPFLAGS"
+LDFLAGS="$OLD_LDFLAGS"
+LIBS="$OLD_LIBS"
+#############################################################
+