diff --git a/examples/flow_polymer.cpp b/examples/flow_polymer.cpp
index 7973fe934..3dfc26b09 100644
--- a/examples/flow_polymer.cpp
+++ b/examples/flow_polymer.cpp
@@ -91,16 +91,37 @@ try
 {
     using namespace Opm;
 
-    std::cout << "\n================    Test program for fully implicit three-phase black-oil-polymer flow     ===============\n\n";
-    parameter::ParameterGroup param(argc, argv, false);
-    std::cout << "---------------    Reading parameters     ---------------" << std::endl;
+    std::cout << "*********************************************************************************************\n";
+    std::cout << "*                                                                                           *\n";
+    std::cout << "*                       This is Flow-Polymer (version 2015.04)                              *\n";
+    std::cout << "*                                                                                           *\n";
+    std::cout << "* Flow-Polymer is a simulator for three-phase black-oil-polymer flow that is a part of OPM. *\n";
+    std::cout << "* For more information see:                                                                 *\n";
+    std::cout << "*                              http://opm-project.org                                       *\n";
+    std::cout << "*                                                                                           *\n";
+    std::cout << "*********************************************************************************************\n\n";
 
-    // If we have a "deck_filename", grid and props will be read from that.
-    bool use_deck = param.has("deck_filename");
-    if (!use_deck) {
-        OPM_THROW(std::runtime_error, "This program must be run with an input deck. "
-                  "Specify the deck with deck_filename=deckname.data (for example).");
+    // Read parameters, see if a deck was specified on the command line.
+    std::cout << "---------------    Reading parameters     ---------------" << std::endl;
+    parameter::ParameterGroup param(argc, argv, false);
+    if (!param.unhandledArguments().empty()) {
+        if (param.unhandledArguments().size() != 1) {
+            OPM_THROW(std::runtime_error, "You can only specify a single input deck on the command line.");
+        } else {
+            param.insertParameter("deck_filename", param.unhandledArguments()[0]);
+        }
     }
+
+    // We must have an input deck. Grid and props will be read from that.
+    if (!param.has("deck_filename")) {
+        std::cerr << "This program must be run with an input deck.\n"
+            "Specify the deck filename either\n"
+            "    a) as a command line argument by itself\n"
+            "    b) as a command line parameter with the syntax deck_filename=<path to your deck>, or\n"
+            "    c) as a parameter in a parameter file (.param or .xml) passed to the program.\n";
+        OPM_THROW(std::runtime_error, "Input deck required.");
+    }
+
     std::shared_ptr<GridManager> grid;
     std::shared_ptr<BlackoilPropertiesInterface> props;
     std::shared_ptr<BlackoilPropsAdFromDeck> new_props;
@@ -239,7 +260,7 @@ try
         if (use_wpolymer) {
             OPM_MESSAGE("Warning: use WPOLYMER in a non-polymer scenario.");
         }
-    }    
+    }
 
     bool use_local_perm = param.getDefault("use_local_perm", true);
     Opm::DerivedGeology geology(*grid->c_grid(), *new_props, eclipseState, use_local_perm, grav);
diff --git a/m4/.ignore b/m4/.ignore
deleted file mode 100644
index e69de29bb..000000000
diff --git a/m4/opm.m4 b/m4/opm.m4
deleted file mode 100644
index caad8bc1a..000000000
--- a/m4/opm.m4
+++ /dev/null
@@ -1,50 +0,0 @@
-dnl -*- autoconf -*-
-
-dnl OPM_PKG_CONFIG_MODULE (name, version, description)
-dnl
-dnl Common routine to include configuration module for an OPM project
-AC_DEFUN([OPM_CHECK_PKG_MODULE],[
- dnl local variables representing parameters
- m4_pushdef([_opm_name], [$1])
- m4_pushdef([_opm_version], [$2])
- m4_pushdef([_opm_description], [$3])
- 
- dnl macro-friendly version of the name; uppercase and with dashes
- dnl replaced with underscores
- m4_pushdef([_opm_module], [m4_translit(_opm_name,[-],[_])])
- m4_pushdef([_OPM_MODULE], [m4_toupper(_opm_module)])
-
- dnl if we are given the location as a parameter, look there first
- AC_ARG_WITH(_opm_name,
-  AS_HELP_STRING([--with-_opm_name=PATH],[_opm_description directory]))
-
- AS_IF([test -n "$with_[]_opm_module"],[
-  export PKG_CONFIG_PATH=$with_[]_opm_module:$PKG_CONFIG_PATH
- ])
-
- dnl let pkg-config do the heavy lifting of finding the .pc file
- PKG_CHECK_MODULES(_OPM_MODULE,[_opm_name = _opm_version],[
-  AC_DEFINE(HAVE_[]_OPM_MODULE,[1],[_opm_description available])
- ])
-
- dnl TODO: here we could call PKG_CONFIG --variable if we need more
-
- dnl make flag available for Makefiles too
- AM_CONDITIONAL(HAVE_[]_OPM_MODULE, test x$HAVE_[]_OPM_MODULE = x1)
-
- dnl add our libraries to the global list of compiler and linker options
- DUNE_CPPFLAGS="$DUNE_CPPFLAGS $_OPM_MODULE[]_CFLAGS"
- DUNE_LIBS="$DUNE_LIBS $_OPM_MODULE[]_LIBS"
-
- # add this module to summary (if we are used with dunecontrol)
- ifdef([DUNE_MODULE_ADD_SUMMARY_ENTRY],[
-  DUNE_MODULE_ADD_SUMMARY_ENTRY(_opm_name)
- ])
-
- dnl cleanup
- m4_popdef([_OPM_MODULE])
- m4_popdef([_opm_module])
- m4_popdef([_opm_description])
- m4_popdef([_opm_version])
- m4_popdef([_opm_name])
-])
diff --git a/m4/opm_polymer.m4 b/m4/opm_polymer.m4
deleted file mode 100644
index 873ae86f5..000000000
--- a/m4/opm_polymer.m4
+++ /dev/null
@@ -1,12 +0,0 @@
-dnl -*- autoconf -*-
-
-dnl locate opm-polymer library itself; this macro is called by every module
-dnl that depends on opm-polymer.
-AC_DEFUN([OPM_POLYMER_CHECK_MODULE],
-[
- OPM_CHECK_PKG_MODULE([opm-polymer],[1.0],[OPM module for polymer simulations])
-])
-
-dnl find all prerequisites of opm-polymer; nothing to do here since this
-dnl is done by the CMake module and then stored in the -config file.
-AC_DEFUN([OPM_POLYMER_CHECKS],[])