Date: Mon, 13 Oct 2014 15:02:48 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-ports-bugs@FreeBSD.org Subject: [Bug 194333] New: mod_perl, GD, libpng combination core dumps when doing $img->png Message-ID: <bug-194333-13@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194333 Bug ID: 194333 Summary: mod_perl, GD, libpng combination core dumps when doing $img->png Product: Ports Tree Version: Latest Hardware: Any OS: Any Status: Needs Triage Severity: Affects Only Me Priority: --- Component: Individual Port(s) Assignee: freebsd-ports-bugs@FreeBSD.org Reporter: papowell@astart.com CC: dinoex@FreeBSD.org CC: dinoex@FreeBSD.org Created attachment 148258 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=148258&action=edit SHAR of graphics/png16, graphics/png16, mods to graphics/gd/Makefile Using: apache24, libpng (libpng15), gd, p5-GD from repository, also when compiled from ports. When generating graphics using a Perl script from apache, apache core dumps when the perl CGI script runs $img->png, but only for a small set of graphics. Similar problem reported in 2004 for various Linux distributions. The problem appears to be in the libpng $img->png support. Note: this only occurs when using mod_perl, same scripts run stand alone do not core dump. Solution: installed libpng16, compiled gd using libpng16, p5-GD using gd with libpng16. This passed my admittedly feeble regression tests. In doing this, I generated a modified version of graphics/png which installs libpng16. However, graphics/png also installs files with the same names in the same locations, i.e. /usr/local/include and /usr/local/lib. The graphics/png script currently creates version specific directories, /usr/local/lib/libpng15 and installs the libpng15 libraries in this location as well. I have modified the graphics/png and created two new ports - graphics/png15 and graphics/png16. These have a 'configure' option - COMPAT that when selected will not install files in conflicting locations. By default, the graphics/png15 has COMPAT disabled and installs the files while graphics/png16 has the COMPAT enabled and will not install the files in conflicating locations. The graphics/gd port Makefile has been modified and a LIBPNG16 configuration option added. When this is selected then the libpng16 version of the libraries installed by graphics/libpng16 are forced to be used, otherwise the default libraries installed by graphics/png or graphics/png15 can be used. Attached is a SHAR file that has the graphics/png15 and graphics/png16 ports. These can be added to the ports without causing any conflicts with graphics/png until they are used, and only if you disable the COMPAT option. Also, there is a patch for graphics/gd which will select the libpng16 libraries if the LIBPNG16 configuration option is used. Is it possible to add these changes to the ports distribution? --- Comment #1 from Bugzilla Automation <bugzilla@FreeBSD.org> --- Maintainers CC'd -- You are receiving this mail because: You are the assignee for the bug.
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