test the local compiled version, not the system installed version
http://bugs.gentoo.org/215359
--- util/defs.in+++ util/defs.in@@ -67,6 +67,7 @@export SHELL
test -z "$TEXI2DVI" && TEXI2DVI=`cd $srcdir && pwd`/texi2dvi
+PATH=$PWD:$PATHecho $PATH
# Some shells forget to export modified environment variables.
# (See note about `export' in the Autoconf manual.)