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configure_package_config_file: force absolute paths for usr-move 

The configure_package_config()_file() macro will now use
absolute paths for the PATH_VARS if the Config.cmake file
will be installed into /lib(64) or /usr/lib(64), since due to
the usr-move filesystem changes Config.cmake files installed
there may be found via two paths (once per symlink via
/lib(64) and once via /usr/lib ), and in this case
relative paths break.

Alex
This commit is contained in:
Alex Neundorf 2013-01-24 21:15:58 +01:00
parent 21fc6c46df
commit d4774140b7
1 changed files with 16 additions and 0 deletions
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16
Modules/CMakePackageConfigHelpers.cmake
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@ -173,18 +173,34 @@ function(CONFIGURE_PACKAGE_CONFIG_FILE _inputFile _outputFile)
else()
set(absInstallDir "${CMAKE_INSTALL_PREFIX}/${CCF_INSTALL_DESTINATION}")
endif()
# with the /usr-move, /lib(64) is a symlink to /usr/lib on Fedora, ArchLinux, Mageira and others.
# If we are installed to such a location, force using absolute paths.
set(forceAbsolutePaths FALSE)
if("${absInstallDir}" MATCHES "^(/usr)?/lib(64)?/.+")
set(forceAbsolutePaths TRUE)
endif()
file(RELATIVE_PATH PACKAGE_RELATIVE_PATH "${absInstallDir}" "${CMAKE_INSTALL_PREFIX}" )
foreach(var ${CCF_PATH_VARS})
if(NOT DEFINED ${var})
message(FATAL_ERROR "Variable ${var} does not exist")
else()
if(forceAbsolutePaths)
if(IS_ABSOLUTE "${${var}}")
set(PACKAGE_${var} "${${var}}")
else()
set(PACKAGE_${var} "${CMAKE_INSTALL_PREFIX}/${${var}}")
endif()
else()
if(IS_ABSOLUTE "${${var}}")
string(REPLACE "${CMAKE_INSTALL_PREFIX}" "\${PACKAGE_PREFIX_DIR}"
PACKAGE_${var} "${${var}}")
else()
set(PACKAGE_${var} "\${PACKAGE_PREFIX_DIR}/${${var}}")
endif()
endif()
endif()
endforeach()