[CMake] Cpack Installing extra files depending on generator type

[Eric Noulard]

2011/12/9 vivek goel <goelvivek2011 at gmail.com>:
> I want to generate two package type .
>
> So I am using following syntax in my CMakeLists.txt
>  SET(CPACK_GENERATOR "TGZ;RPM")
>
> Now problem is that I want to install some extra files in Generator RPM.
> And I want to set different Install RPM prefix.
> How can I do that ?

When you want to do CPack generator specific things you'd better
off using CPACK_PROJECT_CONFIG_FILE
http://www.cmake.org/Wiki/CMake:CPackPackageGenerators#Overall_usage_.28common_to_all_generators.29

this file is loaded **at CPack time** before the CPack generator runs.
in this file you can do something like;

if(CPACK_GENERATOR MATCHES "TGZ")
   set(CPACK_ARCHIVE_COMPONENT_INSTALL "OFF")
endif(CPACK_GENERATOR MATCHES "ZIP")

if(CPACK_GENERATOR MATCHES "RPM")
   set(CPACK_RPM_COMPONENT_INSTALL "ON")
   # change the default install prefix
   set(CPACK_PACKAGING_INSTALL_PREFIX "/opt")
endif(CPACK_GENERATOR MATCHES "RPM")

The problem with the "install extra file for RPM" is that install command
are prepared at **CMake time** and launched at **CPack time**
so may be you can use the

install(SCRIPT ...) signature with a cmake script which will check
(at CPack time) the value of CPACK_GENERATOR in the same way
CPACK_PROJECT_CONFIG_FILE does.



-- 
Erk
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