update 2geom

diff --git a/src/2geom/matrix.h b/src/2geom/matrix.h
index c9f244d6243ac7a8e1a38cc56e9f913ecb577aae..ba4451265a25275eb62453800fc2dfe46182b218 100644 (file)
--- a/src/2geom/matrix.h
+++ b/src/2geom/matrix.h
@@ -105,6 +105,7 @@ class Matrix {
 };
 
 Matrix operator*(Matrix const &a, Matrix const &b);
+inline Matrix &operator*=(Matrix &a, Matrix const &b) { a = a * b; return a; }
 
 /** A function to print out the Matrix (for debugging) */
 inline std::ostream &operator<< (std::ostream &out_file, const Geom::Matrix &m) {