Bug 197198

Summary:	libpng not detected during configure
Product:	[Applications] digikam	Reporter:	Andrzej <superandrzej>
Component:	Portability-Cmake	Assignee:	Digikam Developers <digikam-bugs-null>
Status:	RESOLVED NOT A BUG
Severity:	normal	CC:	caulier.gilles
Priority:	NOR
Version First Reported In:	1.0.0
Target Milestone:	---
Platform:	Slackware
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:	1.0.0
Sentry Crash Report:

Description Andrzej 2009-06-19 22:27:45 UTC

Version:           1.0.0beta1 (using KDE 4.2.4)
Compiler:          gcc
OS:                Linux (i686) release 2.6.28.10
Installed from:    Slackware Packages

I have libpng-1.2.35 installed but digikam does not detect it during configure:

-----------                                                                                               
--  digiKam 1.0.0-beta1 dependencies results   <http://www.digikam.org>                                                                                                             
--                                                                                                                                                                                  
--  Qt4 SQL module found................ YES                                                                                                                                        
--  libjpeg library found............... YES                                                                                                                                        
--  libtiff library found............... YES                                                                                                                                        
--  libpng library found................ NO                                                                                                                                         
--                                                                                                                                                                                  
CMake Error at CMakeLists.txt:152 (MESSAGE):                                                                                                                                        
   digiKam needs libpng. You need to install the correct version (>= 1.2.7).

Comment 1 caulier.gilles 2009-06-20 08:22:06 UTC

there is nothing special in digiKam to detect libpng. all is delegate to CMake scripts (FindPNG.cmake)...

Which cmake version you use ?

Gilles Caulier

Comment 2 Andrzej 2009-06-20 21:24:23 UTC

I use cmake 2.6.2
I even reinstalled it. But the output is the same.

Comment 3 caulier.gilles 2009-06-20 21:31:05 UTC

Remove CMakeCache.txt file from root dir and try again.

Gilles Caulier

Comment 4 Andrzej 2009-06-20 23:07:24 UTC

still the same

Comment 5 Andrzej 2009-06-23 00:06:06 UTC

mea culpa

When I was studying cmake package I discovered that libpng depends on zlib.
Somehow I removed zlib sometime ago (in Slackware there is no dependencies control) and this explains why cmake was not able to detect libpng ;)