Having just updated my tree, JMarc's change to configure.in triggered an automatic rerun of configure. In the past this has failed to run correctly, because configure has insisted on using g++ rather than deccxx. I have, therefore, had to run the configure script as CXX=deccxx configure etc
Things have apparently improved (and recently I believe!). All of a sudden configure is running as I would hope and things are currently compiling nicely. I have, however, one query. Here is a section of the configure messages: checking for a good enough C++ compiler... g++ checking for c++... (cached) deccxx checking whether the C++ compiler (deccxx ) works... yes why does it check for g++ at all in this case? Angus