Well,
Having gone down this path just this morning with BOTH of those
libraries, here is what I did.
In my png/CMakeList.txt file, I have the following:
include_directories(${CxImage_SOURCE_DIR}/Utilities/cxzlib)
include_directories(${CxImage_BINARY_DIR}/CxZLib)
....
ADD_LIBRARY(CxPng ${LIB_TYPE} ${PNG_SRCS} ${PNG_HDRS})
TARGET_LINK_LIBRARIES(CxPng CxZLib)
In my Top level CMakeLists.txt file I have the following:
add_subdirectory(${CxImage_SOURCE_DIR}/Utilities/cxzlib $
{CxImage_BINARY_DIR}/CxZLib)
add_subdirectory(${CxImage_SOURCE_DIR}/Utilities/cxpng $
{CxImage_BINARY_DIR}/CxPng)
That sets up the dependencies between Png and ZLib. CMake generated
build files should now know to build Zlib first, then Png. You can
take a look at the specific project here:
http://www.bluequartz.net/cgi-bin/gitweb/gitweb.cgi?p=CxImage.git;a=summary
I am porting the CxImage project to CMake so I can use it on more than
just Windows. And just to be fair, I grabbed a lot of the CMake code
to build ZLib and Png from the VTK and ITK projects.
_________________________________________________________
Mike Jackson [email protected]
BlueQuartz Software www.bluequartz.net
Principal Software Engineer Dayton, Ohio
On Nov 12, 2009, at 6:59 PM, Hugh Sorby wrote:
I am trying to compile zlib and libpng with one command, or more
specifically one series of commands. My aim is to get as simple as
possible to the following
cmake
make
make install
So what I have done so far is to layout my directories like so:
third_party
|
--zlib
|
--libpng
In each directory I have a CMakeLists.txt file that will build the
libraries. So far so good. Now with a clean system i.e. one where
libpng can't find zlib (because it hasn't been built yet) I try
executing:
cmake
Which runs as expected right up until libpng requires the existence
of zlib. So my problem is how to tell libpng that zlib is on it's
way if it could only be a little patient. Preferebly without having
to touch the CMakeLists.txt file inside libpng directory
Also is this strategy likely to fly or is it never going to get off
the ground?
Chreers.
Also, can CMake apply patches?
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_______________________________________________
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http://www.cmake.org/mailman/listinfo/cmake
