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Fix CMake directory issues.

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Allows absolute and relative paths for
- `INCLUDE_INSTALL_DIR`
- `CMAKEPACKAGE_INSTALL_DIR`
- `PKGCONFIG_INSTALL_DIR`

Type should be `PATH` not `STRING`.  Contrary to , these don't
seem to be made absolute if user-defined - according to the doc any
directories should use `PATH` type, which allows a file dialog
to be used via the GUI.  It also better handles file separators.

If user provides an absolute path, it will be made relative to
`CMAKE_INSTALL_PREFIX` so that the `configure_packet_config_file` will
work.

Fixes  and .
This commit is contained in:
Antonio Sanchez 2021-07-02 13:03:30 -07:00 committed by Rasmus Munk Larsen
parent f5a9873bbb
commit f44f05532d
1 changed files with 6 additions and 5 deletions

11
CMakeLists.txt

@ -424,25 +424,26 @@ endif()
if(EIGEN_INCLUDE_INSTALL_DIR AND NOT INCLUDE_INSTALL_DIR)
set(INCLUDE_INSTALL_DIR ${EIGEN_INCLUDE_INSTALL_DIR}
CACHE STRING "The directory relative to CMAKE_PREFIX_PATH where Eigen header files are installed")
CACHE PATH "The directory relative to CMAKE_INSTALL_PREFIX where Eigen header files are installed")
else()
set(INCLUDE_INSTALL_DIR
"${CMAKE_INSTALL_INCLUDEDIR}/eigen3"
CACHE STRING "The directory relative to CMAKE_PREFIX_PATH where Eigen header files are installed"
CACHE PATH "The directory relative to CMAKE_INSTALL_PREFIX where Eigen header files are installed"
)
endif()
set(CMAKEPACKAGE_INSTALL_DIR
"${CMAKE_INSTALL_DATADIR}/eigen3/cmake"
CACHE STRING "The directory relative to CMAKE_PREFIX_PATH where Eigen3Config.cmake is installed"
CACHE PATH "The directory relative to CMAKE_INSTALL_PREFIX where Eigen3Config.cmake is installed"
)
set(PKGCONFIG_INSTALL_DIR
"${CMAKE_INSTALL_DATADIR}/pkgconfig"
CACHE STRING "The directory relative to CMAKE_PREFIX_PATH where eigen3.pc is installed"
CACHE PATH "The directory relative to CMAKE_INSTALL_PREFIX where eigen3.pc is installed"
)
foreach(var INCLUDE_INSTALL_DIR CMAKEPACKAGE_INSTALL_DIR PKGCONFIG_INSTALL_DIR)
# If an absolute path is specified, make it relative to "{CMAKE_INSTALL_PREFIX}".
if(IS_ABSOLUTE "${${var}}")
message(FATAL_ERROR "${var} must be relative to CMAKE_PREFIX_PATH. Got: ${${var}}")
file(RELATIVE_PATH "${var}" "${CMAKE_INSTALL_PREFIX}" "${${var}}")
endif()
endforeach()