Bug 9464

Summary:	Deprecated libpng function hinders linking with libpng-1.2.12
Product:	cairo	Reporter:	Peter Weilbacher <mozilla>
Component:	png functions	Assignee:	Carl Worth <cworth>
Status:	RESOLVED FIXED	QA Contact:	cairo-bugs mailing list <cairo-bugs>
Severity:	normal
Priority:	medium
Version:	1.3.10
Hardware:	x86 (IA32)
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	Use right function depending on libpng version

Description Peter Weilbacher 2006-12-27 13:02:11 UTC

I sent this to the cairo list some weeks ago but never got a response. So I
thought I could file this as a bug, so that it doesn't get forgotten completely...

When I tried to link cairo against libpng 1.2.12 on OS/2 I had problems 
because this libpng version no longer exports the
    png_set_gray_1_2_4_to_8()
function as it is deprecated. Will attach a patch that works for me with both
new and old libpng versions.

Comment 1 Peter Weilbacher 2006-12-27 13:04:38 UTC

Created attachment 8230 [details] [review]
Use right function depending on libpng version

In newer libpng versions, the function was renamed to
png_set_expand_gray_1_2_4_to_8() so we should use that for versions starting
with libpng 1.2.9.

Comment 2 Peter Weilbacher 2007-04-23 14:59:03 UTC

I have pushed the fix into the git repository, so it should appear in cairo 1.4.6.

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