Hi all,
I have a library that is built and linked to as part of my project. I
want to provide the facility to OPTIONALLY have the library installed
system-wide (or wherever ${CMAKE_INSTALL_PREFIX} is set). Otherwise, by
default, the project's final build products will be linked statically to
the library, and the former get installed, but the library binaries stay
in the build directory.
In other words:
$ make
$ make install
will build and install, the programs, but only something like
$ make install.foo
will install the library to ${CMAKE_INSTALL_PREFIX}, building it first
if needed.
I have something like this so far (simplified from the actual script, so
there might be errors):
INCLUDE_DIRECTORIES( "${CMAKE_CURRENT_LIST_DIR}")
SET (FOO_LIBRARY "foo")
# Following builds library and makes it available to
# be linked other targets within project by:
# TARGET_LINK_LIBRARIES(${progname} ${FOO_LIBRARY})
ADD_LIBRARY(${FOO_LIBRARY}
foo/foo.cpp # and other sources ...
)
###########################################################
# Approach #1
# -----------
# Optionally allow users to install it by invoking:
#
# cmake .. -DINSTALL_FOO="yes"
#
# This works, but it means that users will have to run
# cmake again to switch back and forth between the libary
# installation and non-library installation.
#
OPTION(INSTALL_FOO "Install foo" OFF)
IF (INSTALL_FOO)
INSTALL(TARGETS ${FOO_LIBRARY} DESTINATION lib/foo)
SET(FOO_HEADERS foo/foo.h)
INSTALL(FILES ${FOO_HEADERS} DESTINATION include/foo)
UNSET(INSTALL_FOO CACHE)
ENDIF()
###########################################################
###########################################################
# Approach #2
# -----------
# Optionally allow users to install it by invoking:
#
# make install.foo
#
# Unfortunately, this gets installed by "make install",
# which I want to avoid
SET(FOO_INSTALL "install.foo")
ADD_CUSTOM_TARGET(${FOO_INSTALL}
COMMAND ${CMAKE_COMMAND}
-D COMPONENT=foo
-P cmake_install.cmake)
ADD_DEPENDENCIES(${FOO_INSTALL} ${FOO_LIBRARY})
INSTALL(TARGETS ${FOO_LIBRRARY}
DESTINATION lib/foo COMPONENT foo)
SET(FOO_HEADERS foo/foo.h)
INSTALL(FILES ${FOO_HEADERS}
DESTINATION include/foo COMPONENT foo)
###########################################################
As can be seen, approach #1 sort of works, but the required steps to
install the library are:
$ cmake .. -DINSTALL_FOO="yes"
$ make && make install
And then, to go back to "normal" builds, the user has to remember to run
cmake again without the "-DINSTALL_FOO" option, otherwise the library
will be installed on the next "make install".
The second approach works when I run "make install.foo", but it also
install the library if I run "make install". I would like to avoid the
latter.
Does anyone have any suggestions on how to go about achieving this?
Thanks!
-- jeet
--------------------------------------
Jeet Sukumaran
--------------------------------------
jeet.sukuma...@duke.edu
--------------------------------------
Department of Biology
Duke University
Box 90338
Durham, NC 27708
--------------------------------------
Blog/Personal Pages:
http://jeetworks.org/
Photograph Galleries:
http://jeet.smugmug.com/
GitHub Repositories:
http://github.com/jeetsukumaran
--------------------------------------
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