Add summary information to config.log (see FS#783)

[[Imported from SVN: r6031]]

m4/dune.m4

@@ -154,14 +154,12 @@ AC_DEFUN([DUNE_MODULE_ADD_SUMMARY_ENTRY],[
   m4_pushdef([_dune_name], [$1])
   m4_pushdef([_dune_module], [m4_translit(_dune_name, [-], [_])])
   m4_pushdef([_DUNE_MODULE], [m4_toupper(_dune_module)])
-  result="$with_[]_dune_module"
-  AS_IF([test -n "$_DUNE_MODULE[]_ROOT"],[
-    result="$result ($_DUNE_MODULE[]_ROOT)"
-  ])
-  AS_IF([test -n "$_DUNE_MODULE[]_VERSION"],[
-    result="$result version $_DUNE_MODULE[]_VERSION"
+  AS_IF([test -n "$_DUNE_MODULE[]_VERSION" -a "x$with_[]_dune_module" != "xno"],[
+    result="version $_DUNE_MODULE[]_VERSION"
+  ],[
+    result="$with_[]_dune_module"
   ])
-  DUNE_ADD_SUMMARY_MOD_ENTRY(_dune_name,[$result])
+  DUNE_ADD_SUMMARY_MOD_ENTRY(_dune_name,[$result],[$_DUNE_MODULE[]_ROOT])
 ])
 
 m4_define([_dune_sub_version],"`echo $1 | $AWK -F. -v FIELD=$2 '{ print int($FIELD) }'`")

m4/dune_all.m4

@@ -55,6 +55,9 @@ AC_DEFUN([DUNE_ADD_SUMMARY_ENTRY],[
   while test `echo "$txt" | tr -d '\n' | wc -c` -lt $indentlen; do txt="$txt."; done
   txt="$txt: $2"
   [DUNE_SUMMARY="$DUNE_SUMMARY echo '$txt';"]
+  fulltxt="$txt"
+  AS_IF([ test "x$3" != "x" ],[ fulltxt="$fulltxt  ($3)" ])
+  [DUNE_FULLSUMMARY="$DUNE_FULLSUMMARY echo '$fulltxt';"]
 ])
 
 AC_DEFUN([DUNE_ADD_SUMMARY_MOD_ENTRY],[
@@ -63,6 +66,9 @@ AC_DEFUN([DUNE_ADD_SUMMARY_MOD_ENTRY],[
   while test `echo $txt | tr -d '\n' | wc -c` -lt $indentlen; do txt=$txt.; done
   txt="$txt: $2"
   [DUNE_MODULES_SUMMARY="$DUNE_MODULES_SUMMARY echo '$txt';"]
+  fulltxt="$txt"
+  AS_IF([ test "x$3" != "x" ],[ fulltxt="$fulltxt  ($3)" ])
+  [DUNE_MODULES_FULLSUMMARY="$DUNE_MODULES_FULLSUMMARY echo '$fulltxt';"]
 ])
 
 AC_DEFUN([DUNE_SUMMARY_ALL],[
@@ -90,6 +96,19 @@ AC_DEFUN([DUNE_SUMMARY_ALL],[
   echo "See ./configure --help and config.log for reasons why a component wasn't found"
   echo
 
+  {
+    echo
+    echo "------------------------------------------------------------------------------"
+    echo "-                                  SUMMARY                                   -"
+    echo "------------------------------------------------------------------------------"
+    echo  
+    [(eval $DUNE_MODULES_FULLSUMMARY) | sort]
+    echo
+    [(eval $DUNE_FULLSUMMARY) | sort]
+    echo
+    echo "------------------------------------------------------------------------------"
+    echo
+  } >&AS_MESSAGE_LOG_FD
 ])
 
 AC_DEFUN([DUNE_CHECK_ALL_WARNING],