I ran into this by chance and don't know what to make of it, particularly since Sage is bundling libpng
On one machine (i7) I see: checking for deflate in -lz... yes checking for libpng12-config... /mnt/hdb/sage/sage-4.4.4/local/bin/libpng12-config checking for libpng-config... /mnt/hdb/sage/sage-4.4.4/local/bin/libpng-config checking png.h usability... yes checking png.h presence... yes checking for png.h... yes checking for png_create_read_struct in -lpng12... yes On the other (phenom - cuda1.tarbox.org): checking for deflate in -lz... yes checking for libpng12-config... /mnt/hdb/sage/sage-4.4.4/local/bin/libpng12-config checking for libpng-config... /mnt/hdb/sage/sage-4.4.4/local/bin/libpng-config checking png.h usability... no checking png.h presence... no checking for png.h... no checking libpng/png.h usability... no checking libpng/png.h presence... no checking for libpng/png.h... no checking for png_create_read_struct in -lpng12... yes They're both 64 bit Ubuntu 10.04... and both have libpng12 libraries installed and respond identically WRT libpng installations and OS (although, again, since sage comes with libpng, one wouldn't think this matters...) tar...@cuda1:$ dpkg --get-selections | grep libpng libpng12-0 install libpng12-dev install tar...@cuda1:$ uname -a Linux cuda1 2.6.32-23-server #37-Ubuntu SMP Fri Jun 11 09:11:11 UTC 2010 x86_64 GNU/Linux The net result is that R on the I7 has png() but the phenom doesn't. However, the notebook has no trouble generating png on either box The install files from the two installations are: http://hq3.tarbox.org/sage/i7.install.log.bz2 http://hq3.tarbox.org/sage/phenom.install.log.bz2 -glenn -- Glenn H. Tarbox, PhD || 206-274-6919 || gl...@tarbox.org - xmpp || ghtdak - aim,jabber,IRC,yahoo -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
