Big cleanup of the build structure.

* configure.ac is divided into distinct sections for programs, headers,
   optional components, etc.

 * polyp/Makefile.am is organised into several sections instead of a big mess.

 * Conditionals are only for adding things to the primaries, not around their
   build rules.

 * polypcore has been brought up to date in preparation for the Windows port.
   It is not possible to use the current tricks there.


git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/ossman@362 fefdeb5f-60dc-0310-8127-8f9354f1896f

acinclude.m4

@@ -197,3 +197,44 @@ else
 fi
 AC_LANG_RESTORE
 ])dnl ACX_PTHREAD
+
+AC_DEFUN([AC_CHECK_DEFINE],[
+AS_VAR_PUSHDEF([ac_var],[ac_cv_defined_$1])dnl
+AC_CACHE_CHECK([for $1 defined], ac_var,
+AC_TRY_COMPILE([#include <$2>],[
+  #ifdef $1
+  int ok;
+  #else
+  choke me
+  #endif
+],AS_VAR_SET(ac_var, yes),AS_VAR_SET(ac_var, no)))
+AS_IF([test AS_VAR_GET(ac_var) != "no"], [$3], [$4])dnl
+AS_VAR_POPDEF([ac_var])dnl
+])
+
+AC_DEFUN([ACX_LIBWRAP], [
+LIBWRAP_LIBS=
+saved_LIBS="$LIBS"
+LIBS="$LIBS -lwrap"
+AC_MSG_CHECKING([for tcpwrap library and headers])
+AC_LINK_IFELSE(
+AC_LANG_PROGRAM(
+[#include <tcpd.h>
+#include <syslog.h>
+int allow_severity = LOG_INFO;
+int deny_severity = LOG_WARNING;],
+[struct request_info *req; 
+return hosts_access (req);]),
+[AC_DEFINE(HAVE_LIBWRAP, [], [Have tcpwrap?])
+LIBWRAP_LIBS="-lwrap"
+AC_MSG_RESULT(yes)],
+[AC_MSG_RESULT(no)])
+LIBS="$saved_LIBS"
+])
+
+AC_DEFUN([ACX_LIRC], [
+LIRC_CFLAGS=
+LIRC_LIBS=
+AC_CHECK_HEADER(lirc/lirc_client.h,[AC_CHECK_LIB(lirc_client,lirc_init,[HAVE_LIRC=1
+LIRC_LIBS=-llirc_client],HAVE_LIRC=0)],HAVE_LIRC=0)
+])