cmake: Configure_file variable replacement - cmake

Question

I am using cmake's PackageConfigHelpers'
configure_package_config_file(
Config.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
INSTALL_DESTINATION
....
PATH_VARS
my_paths
)
If my_path were to consist of multiple paths, such as:
set(my_paths path1 path2)
the config file will end up prefixing only path1 and I will end up with:
${PACKAGE_PREFIX_DIR}path1;path2.
which results into path2 not being locatable. Is there any way of fixing this while still using the function provided by PackageConfigHelpers?

Answer 1

Each path should be assigned to its own variable, and these variables should be enumarated for PATH_VARS option:
set(path1_var <...> CACHE ...)
set(path2_var <...> CACHE ...)
configure_package_config_file(
"Config.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
INSTALL_DESTINATION
....
PATH_VARS
path1_var
path2_var
)
Each variable should be used in Config.cmake.in for specific type of deliverables.
From the documentation for configure_package_config_file:
The variables <var1> to <varN> given as PATH_VARS are the variables which contain install destinations. For each of them the macro will create a helper variable PACKAGE_<var...>. These helper variables must be used in the FooConfig.cmake.in file for setting the installed location. They are calculated by CONFIGURE_PACKAGE_CONFIG_FILE() so that they are always relative to the installed location of the package.