pkg/43999: graphics/imlib fails to compile on sparc64 with error "configure: error: *** PNG library not found ***"

[vs%nifelheim.info@localhost]

>Number:         43999
>Category:       pkg
>Synopsis:       graphics/imlib fails to compile on sparc64 with error 
>"configure: error: *** PNG library not found ***"
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          support
>Submitter-Id:   net
>Arrival-Date:   Sun Oct 24 18:20:00 +0000 2010
>Originator:     Volkmar Seifert
>Release:        NetBSD/sparc64 5.1_RC4
>Organization:
>Environment:
NetBSD hamster.home.nifelheim.info 5.1_RC4 NetBSD 5.1_RC4 (GENERIC) #1: Tue Oct 
19 11:22:54 CEST 2010  
root%panther.home.nifelheim.info@localhost:/build/work/sparc64/hamster/obj/build/src/sys/arch/sparc64/compile/GENERIC
 sparc64
>Description:
First of all, I am using pkgsrc-current with nightly updates :)

I tried to "make install" x11/dfm, which pulled in graphics/imlib as a 
dependency.
graphics/png had been installed a while ago due to some other dependencies, and 
is up-to-date (relative to pkgsrc-current).
During "make configure" of graphics/imlib, configure fails with the following 
error:

checking for gif_lib.h... yes
checking for DGifOpenFileName in -lungif... yes
checking for png_read_info in -lpng... no
configure: error: *** PNG library not found ***

I tried reinstalling graphics/png but the error persists. A clean-up of the 
working directory doesn't help, either.
>How-To-Repeat:
cd graphics/imlib
make install
>Fix:
Unknown.