diff --git a/README b/README
index 3d98c31..3e2880b 100644
--- a/README
+++ b/README
@@ -2,9 +2,9 @@
 MARCO: an efficient MUS and MCS enumeration tool
 
 This is a Python implementation of the MARCO algorithm [1] for enumerating
-MUSes and MCSes of infeasible constraint systems (currently: SAT and SMT).
-This implementation makes use of MUSer2 [2] for MUS extraction and MiniSAT 2.2
-[3] for satisfiability testing and the generation of SAT models.
+MUSes and MCSes of infeasible constraint systems (currently: CNF, GCNF, and
+SMT).  This implementation makes use of MUSer2 [2] for MUS extraction and
+MiniSAT 2.2 [3] for satisfiability testing and the generation of SAT models.
 
    Web: http://www.iwu.edu/~mliffito/marco/
 
@@ -68,7 +68,11 @@ Example: ./marco.py tests/test1.cnf
 
 Run ./marco.py --help for a list of available options.
 
-Input files may be gzipped.
+Input files may be in CNF, GCNF (group oriented CNF), or SMT2 format.  Input
+files may be gzipped.
+
+The supported GCNF format is the one specified in:
+  http://www.satcompetition.org/2011/rules.pdf
 
 The output lists MUSes ("U") and MCSes ("S"), one per line.  In 'verbose' mode
 (-v), each line also lists the indexes of the constraints included in each set
diff --git a/mkdist.sh b/mkdist.sh
index d7bb5a4..c1f331e 100755
--- a/mkdist.sh
+++ b/mkdist.sh
@@ -3,7 +3,7 @@
 # gather "whitelist" of files to include
 marco_files="*.py muser2-static README VERSION"
 if [ $# -lt 2 -o "$2" != "notest" ] ; then
-    test_files="tests/*.cnf tests/*.smt2 tests/*.gz tests/*.py tests/out/*/*"
+    test_files="tests/*.cnf tests/*.gcnf tests/*.smt2 tests/*.gz tests/*.py tests/out/*/*"
 fi
 minisolvers_files=`find pyminisolvers/ \( -name "*.cc" -or -name "*.cpp" -or -name "*.h" -or -name "Makefile" -or -name "makefile" -or -name "*.py" -or -name "*.pyx" \) -print`