Can't compile

[quido]

I tried again fresh on my desktop instead of linux, am getting this error on cmake

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Please wait while cmake processes CMakeLists.txt files....

CMake Error at /usr/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:70 (MESSAGE):
  Could NOT find ZLIB (missing: ZLIB_LIBRARIES ZLIB_INCLUDE_DIRS)
Call Stack (most recent call first):
  /usr/share/cmake-2.8/Modules/FindZLIB.cmake:39 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  CMakeLists.txt:95 (FIND_PACKAGE)

The cmake process then appears to continue. The GUI version says my project files may be invalid

[quido]

I think I figured it out! Needed to get zlib dev package.