Recently dpkg-buildpackage got the option to build in parallel via the -j option. This means that debian/rules is called with that option set, and sets parallel=n in DEB_BUILD_OPTIONS. The problem is that for build systems not using make (eg, scons), this option is not inherited. Of course, one could parse DEB_BUILD_OPTIONS and find if parallel=n is set and then call the build system with the equivalent option. However this means that, although one specified n threads of execution, there can be more than n threads concurrently. Consider this case:
build: build-indep build-arch build-arch: scons -j$(NTHREADS) buildProgram build-indep: scons -j$(NTHREADS) buildDocumentation Where NTHREADS is calculated from DEB_BUILD_OPTIONS. If I call dpkg-buildpackage with -j2, I will get build-arch and build-indep running concurrently, which means I will actually get 4 scons threads running instead of the intended 2. What should I do? I see 3 options: 1- Don't use the -j flag in scons 2- Use the -j flag and potentially use more threads than specified 3- Use the -j flag with a lower number (eg, NTHREADS/2). Any opinions? -- Felipe Sateler -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]