CGAL users discussion list

[A S <>]

I'm sorry, I'm a noob and have two questions.  I seem to have run into the notorious "Could NOT find ZLIB  (missing:  ZLIB_LIBRARY ZLIB_INCLUDE_DIR)" configuration alert.  I'm confused as to how to go about setting up ZLIB so that CMake sees it.

 

What are ZLIB_LIBRARY and ZLIB_INCLUDE_DIR?  Are they environment variables?  (I'm running Visual C++ 2008 Express edition on Windows 7.)  Are they constants inside a CMake file, or inside a CGAL file?

 

Laurent Rineau,has generously answered a prior poster that...

---

"ZLIB_INCLUDE_DIR must be equal to 'C:\Zlib\include'.

"As for ZLIB_LIBRARY, it must be full path to zlib.lib that corresponds to
zlib1.dll, probably "C:\Zlib\zlib.lib". You must also have C:\Zlib on the PATH
environment variable, so that zlib1.dll can be found at runtime by the DLL
loader."

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(I do have C:\Zlib on the PATH environment variable.  But I have no idea what he means by "ZLIB_INCLUDE_DIR must be equal to 'C:\Zlib\include'."  Equal to that string...where?  In what file is this written?)

 

My second question, if I want only to build a Demo of "Alpha_shapes_2," which of the following CMake line items need to be checked in their checkboxes?  (I'm guessing WITH_examples doesn't need a check.  What about the others?)

 

WITH_CGAL_Core
WITH_CGAL_ImageIO
WITH_CGAL_PDB
WITH_CGAL_Qt3
WITH_CGAL_Qt4
WITH_CPACK
WITH_GMP
WITH_LEDA
WITH_demos
WITH_examples

 

Thanks for any help.