Re: CLooG hell
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Dear Sir,I find the tone of your letter inappropriate. CAPITALS, "Clear enough yet", "Do you understand that yet?" and similar phrases could be offensive to some people. If you directed it toward a young man, it could have devastating results for that young spirit.
However, I'm not here to argue with you, I'm here to get some help - I believe that is the reason that some wise guy named this mailing list gcc-help, but it seems that nobody recalls why these days.
Now, I'd like to write something to the people willing to actually help, if there are such.
I'm using help from http://gcc.gnu.org/install/ when trying to build gcc from files I got with the following command (and my intention was to get graphite, framework for HL mem optimizations, maybe I got something wrong, I don't know):
svn co svn://gcc.gnu.org/svn/gcc/branches/graphite graphiteI've also tried and successfully built gcc 4.6.3, gcc 4.7.1 and gcc 4.8.0 without graphite support. Now I wanted the graphite framework included in the build, in order to test optimizations provided.
I'm stuck with something I don't have time to investigate, so I'm kindly asking for help, if there is competent person, willing to hear and track the issue with me. My ultimate goal is working gcc (with latest libraries if possible, if not - say so - don't write "libppl 0.11 or later" if it actually requires "libppl 0.11 ONLY", I believe that we need clarification on this - google and you'll find that I'm not the only one having trouble with this issue) and g++ supporting these new optimization methods.
Kind regards, Vladimir On 07/16/2012 02:26 PM, Jonathan Wakely wrote:
On 16 July 2012 13:13, Vladimir Kraljević wrote:I'm refering to these instructions: http://gcc.gnu.org/install/ If there is some better source, please tell me.For the third time, USE THE INSTRUCTIONS INCLUDED IN THE 4.7.1 RELEASE SOURCES The instructions at http://gcc.gnu.org/install/ refer to the SVN trunk, which was recently changed to use CLooG-ISL, without PPL. Those instructions don't even mention PPL. If you want to build 4.7.1 use the instructions for 4.7.1, not the instructions for trunk. Clear enough yet?I know that 4.6.3 and 4.7.2 work with PPL 0.11 (using provided instructions). however, configure should check if later version is present, IMHO, as it states.Your opinion is noted.What I'm trying to highlight is that builders are enforced to use old library (PPL 0.11) for some reason (then again, the question is why using PPL when it is instructed to use ISL? I allow the possibility that I didn't understand CLooG dependencies well).Because you're trying to use the instructions for GCC trunk to build GCC 4.7.1 THOSE ARE THE WRONG INSTRUCTIONS. Do you understand that yet?I'm going to test this statement after PPL 0.12 build, I'll write about this issue once more.Hmm, or you could use the version recommended in the 4.7.1 installation docs.But seriously guys, I think that it should be nice to plan for the future. New versions of libraries are sometimes faster and sometimes provide bug fixes. Just allow the possibility of choosing the libraries to the builders.As documented: "While any sufficiently new version of required tools usually work, library requirements are generally stricter. Newer versions may work in some cases, but it's safer to use the exact versions documented. We appreciate bug reports about problems with newer versions, though." Since you're failing repeatedly to get it working, maybe you should just stick to the exact versions documented and leave it to others to test the newer versions. Follow the instructions and it will work. GCC trunk no longer uses PPL at all, that dependency has been replaced by ISL, but for GCC 4.7.1 just try following the instructions. The right ones. You're not saying anything new or useful to anyone, you're just failing to follow instructions and complaining about a known situation which is described in the docs, so I'm done with this thread. Good luck.