* Paul Wise <pabs@debian.org>, 2009-08-16, 14:42:
debian/rules doesn't handle DEB_BUILD_OPTIONS=noopt or DEB_BUILD_OPTIONS=parallel=N (see debian-policy).Fixed. I've also overridden CXXFLAGS, first to enforce that -Wall is always present, and to push optimization levels to -O3 (the extra optimization performed at -O3 do not affect trend behavior).I notice these warning from make and wonder if they are related: make[1]: warning: jobserver unavailable: using -j1. Add `+' to parent make rule. make[1]: warning: -jN forced in submake: disabling jobserver mode.
I guess it's rather an instance of this bug: http://bugs.debian.org/bug=532805 -- Jakub Wilk