On Sun, Nov 13, 2011 at 12:47 PM, Bill Janssen <bill.jans...@gmail.com> wrote: > What's the objection to linking PIL statically against libjpeg? It > would remove a lot of uncertainty in the build. PIL seems to be the > only place libjpeg is used.
We should not require binary build machines to have libjpeg installed. If we include libjpeg, then there is no reason to statically link. -- William > > On Nov 13, 12:44 pm, William Stein <wst...@gmail.com> wrote: >> On Sun, Nov 13, 2011 at 12:10 PM, Bill Janssen <bill.jans...@gmail.com> >> wrote: >> > Yes, I think that's right, Justin. >> >> > I just tried this: >> >> > 1. Build libpng and libjpeg, static-only, and install to SAGE_LOCAL/ >> > lib/. >> > 2. Build Imaging-1.1.7 (after setting CPPFLAGS and LDFLAGS to point >> > to SAGE_LOCAL), and install to SAGE_LOCAL/lib. >> > 3. Remove my /opt/local/lib/ directory. >> >> > Now Image.open() and .show() work fine. >> >> > I think this should become part of the Sage build process, if it isn't >> > already. >> >> No way. Either we include libjpeg properly with Sage (and link it >> dynamically), or we make sure that our build machines don't have stuff >> in /opt that produces bad binaries. >> >> I think including libjpeg at some point is reasonable, assuming that >> it is legal these days. (Is it?) >> >> -- William >> >> >> >> >> >> >> >> >> >> > That way you won't wind up with "improper builds". You can >> > delete the PNG and JPEG libraries after building PIL, as they're now >> > statically linked into the PIL libraries. >> >> > So, why not build libpng and libjpeg dynamically? Because Sage also >> > sets DYLD_LIBRARY_PATH (usually a bad indicator on Macs), and the >> > dynamic version would override the versions various system frameworks >> > (like ImageIO) are supposed to link against. Might it make more sense >> > to use DYLD_FALLBACK_LIBRARY_PATH for this purpose? >> >> > Bill >> >> > On Nov 13, 11:50 am, "Justin C. Walker" <jus...@mac.com> wrote: >> >> On Nov 13, 2011, at 09:59 , Bill Janssen wrote: >> >> >> > You're implying that 4.7.1 or 4.7.2 fix this issue in some way? I >> >> > don't see anything in the release notes which would cause me to >> >> > suspect that. >> >> >> Unless I'm still too caffeine-deprived, I think the issue is that you are >> >> one of the first to try the Mac OS X 10.5 binary release of 4.7, at least >> >> with something involving this particular library. >> >> >> There is no (i.e., doesn't seem to be an) issue for those who are using >> >> either a different binary or have built from source (at least, your >> >> primordial example works for me) (once I change my name to "wjanssen" >> >> :-}). >> >> >> This doesn't seem to be a problem in Sage that needs to be fixed. It >> >> seems to be a problem with one (or perhaps more than one) binary that has >> >> been built improperly. >> >> >> If someone else doesn't verify this first, I'll try to get to it tomorrow. >> >> >> Justin >> >> >> -- >> >> Justin C. Walker, Curmudgeon at Large >> >> Director >> >> Institute for the Enhancement of the Director's income >> >> ----------- >> >> -- >> >> They said it couldn't be done, but sometimes, >> >> it doesn't work out that way. >> >> - Casey Stengel >> >> -- >> >> > -- >> > To post to this group, send email to sage-support@googlegroups.com >> > To unsubscribe from this group, send email to >> > sage-support+unsubscr...@googlegroups.com >> > For more options, visit this group >> > athttp://groups.google.com/group/sage-support >> > URL:http://www.sagemath.org >> >> -- >> William Stein >> Professor of Mathematics >> University of Washingtonhttp://wstein.org > > -- > To post to this group, send email to sage-support@googlegroups.com > To unsubscribe from this group, send email to > sage-support+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/sage-support > URL: http://www.sagemath.org > -- William Stein Professor of Mathematics University of Washington http://wstein.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
