Thank you
for the example, Ryan. It makes some aspects of writing an Find* Modul clearer
and more concret to me. It will be useful for me in the near future.
Michael
On 3/26/10 5:22 AM, Michael Schildt wrote:
>/
/>>/ You don't generally need to use link-directories - if you're using
/>>/ imported targets from a *Config.cmake file, the build type choice I
/>>/ would imagine is automatic (?),
/>/ Yes, that is that the former guys wrote and it is really working this
/>/ easy way now.
/>/
/>>/ and if not you should be passing full
/>>/ paths to the library files in target_link_libraries, where you can
/>>/ specify using the debug, optimized, and general keywords.
/>/ For external lib not using cmake i will use something like
/>/
/>/ /TARGET_LINK_LIBRARIES( Project1 debug
/>/ //F:/Extern////Lib1/Debug/test1.lib//
/>/ / optimized //F:/Extern//Lib1/Release/test1.lib
/>/ )
/>/ /
/>/
/>/ But i have not tested yet. i suggest to add this to the FAQ because i
/>/ missed it there very much.
/>/
/>/ Ciao,
/>/ Michael
/Instead of hard-coding the paths in your CMakeLists.txt, I'd suggest
using the find_library and find_path (for include_directories) to
attempt to find the libraries in some area, and to allow the developer
to change the library/include paths by editing a cache variable with the
CMake GUI. At least to me, I code my CMakeLists files for all projects
as if the project were open source and might be built by folks who had
just installed the dependencies either a: in their default locations
(where I want to auto-detect them), or b: in some strange location (if
they configured a different install location, I want them to be able to
configure the build of the project similarly.) As a result, I create
Find*.cmake modules for every dependency that provide a
WHATEVER_ROOT_DIR cache variable, used to generate appropriate paths to
pass as "HINTS" to the find_library/path calls, that is not marked as
advanced until the full library is found, as well as the individual
_LIBRARY and _INCLUDE_DIR cache vars that are marked as advanced
automatically in all cases. I've pasted an example below.
Ryan
---- FindVRPN.cmake ----
# - try to find VRPN library
#
# Cache Variables:
# VRPN_LIBRARY
# VRPN_SERVER_LIBRARY
# VRPN_INCLUDE_DIR
#
# Non-cache variables you might use in your CMakeLists.txt:
# VRPN_FOUND
# VRPN_SERVER_LIBRARIES
# VRPN_LIBRARIES
# VRPN_INCLUDE_DIRS
#
# VRPN_ROOT_DIR is searched preferentially for these files
#
# Requires these CMake modules:
# FindPackageHandleStandardArgs (known included with CMake >=2.6.2)
#
# Original Author:
# 2009-2010 Ryan Pavlik <rpavlik at iastate.edu
<http://www.cmake.org/mailman/listinfo/cmake>> <abiryan at ryand.net
<http://www.cmake.org/mailman/listinfo/cmake>>
# http://academic.cleardefinition.com
# Iowa State University HCI Graduate Program/VRAC
set(VRPN_ROOT_DIR
"${VRPN_ROOT_DIR}"
CACHE
PATH
"Root directory to search for VRPN")
if("${CMAKE_SIZEOF_VOID_P}" MATCHES "8")
set(_libsuffixes lib64 lib)
else()
set(_libsuffixes lib)
endif()
###
# Configure VRPN
###
find_path(VRPN_INCLUDE_DIR
NAMES
vrpn_Connection.h
PATH_SUFFIXES
include
include/vrpn
HINTS
"${VRPN_ROOT_DIR}")
find_library(VRPN_LIBRARY
NAMES
vrpn
PATH_SUFFIXES
${_libsuffixes}
HINTS
"${VRPN_ROOT_DIR}")
find_library(VRPN_SERVER_LIBRARY
NAMES
vrpnserver
PATH_SUFFIXES
${_libsuffixes}
HINTS
"${VRPN_ROOT_DIR}")
###
# Dependencies
###
set(_deps_libs)
set(_deps_includes)
set(_deps_check)
find_package(quatlib)
list(APPEND _deps_libs ${QUATLIB_LIBRARIES})
list(APPEND _deps_includes ${QUATLIB_INCLUDE_DIRS})
list(APPEND _deps_check QUATLIB_FOUND)
if(NOT WIN32)
find_package(Threads)
list(APPEND _deps_libs ${CMAKE_THREAD_LIBS_INIT})
list(APPEND _deps_check CMAKE_HAVE_THREADS_LIBRARY)
endif()
# handle the QUIETLY and REQUIRED arguments and set xxx_FOUND to TRUE if
# all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(VRPN
DEFAULT_MSG
VRPN_LIBRARY
VRPN_INCLUDE_DIR
${_deps_check})
if(VRPN_FOUND)
set(VRPN_INCLUDE_DIRS "${VRPN_INCLUDE_DIR}" ${_deps_includes})
set(VRPN_LIBRARIES "${VRPN_LIBRARY}" ${_deps_libs})
set(VRPN_SERVER_LIBRARIES "${VRPN_SERVER_LIBRARY}" ${_deps_libs})
mark_as_advanced(VRPN_ROOT_DIR)
endif()
mark_as_advanced(VRPN_LIBRARY
VRPN_SERVER_LIBRARY
VRPN_INCLUDE_DIR)
--
Ryan Pavlik
Human-Computer Interaction Graduate Student
Virtual Reality Applications Center
Iowa State University
rpavlik at iastate.edu <http://www.cmake.org/mailman/listinfo/cmake>
http://academic.cleardefinition.com/
<http://academic.cleardefinition.com/>
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