ports/172377: Fix for p5-Image-Scale (fails to load with png-1.5.x)
Michael Curtis
michael at moltenmercury.org
Sat Oct 6 02:20:05 UTC 2012
>Number: 172377
>Category: ports
>Synopsis: Fix for p5-Image-Scale (fails to load with png-1.5.x)
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-ports-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Oct 06 02:20:05 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Michael Curtis
>Release: 9.0
>Organization:
>Environment:
FreeBSD citadel 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan 3 07:46:30 UTC 2012 root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
p5-Image-Scale uses png_memcpy, which is now a private API in PNG and not exposed to external clients. This causes a compile warning and the .so fails to load when Perl tries to load it, due to an unresolved symbol.
>How-To-Repeat:
Compile p5-Image-Scale against a recent libpng, load the module in Perl.
>Fix:
The attached patch (to be placed in files dir of port) changes the png_memcpy to an ordinary memcpy. This appears to be safe, and png_memcpy is #define'd to memcpy inside libpng these days.
Patch attached with submission follows:
diff -ur work/Image-Scale-0.08/src/png.c work2/Image-Scale-0.08/src/png.c
--- src/png.c 2011-07-12 01:03:28.000000000 +1000
+++ src/png.c 2012-10-04 01:53:55.000000000 +1000
@@ -40,7 +40,7 @@
}
}
- png_memcpy(data, buffer_ptr(im->buf), len);
+ memcpy(data, buffer_ptr(im->buf), len);
buffer_consume(im->buf, len);
goto ok;
>Release-Note:
>Audit-Trail:
>Unformatted:
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