X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7951b2d0118b44426367d128f5229eb3e3960536..eb63e57238e4a0902319ae045aa0c7ae957479b2:/CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0a598eb457..c1c945307c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,8 +49,9 @@ if(NOT PERL_EXECUTABLE)
 	message(FATAL_ERROR "-- SimGrid cannot be compiled without Perl installed -- sorry. Bailling out.")
 endif(NOT PERL_EXECUTABLE)
 
-if(UNIX AND NOT APPLE)
-	exec_program("${CMAKE_COMMAND} -E chdir \"${CMAKE_HOME_DIRECTORY}\" pwd -P" OUTPUT_VARIABLE TRUE_CMAKE_HOME_DIRECTORY)
+if(CMAKE_CACHE_MAJOR_VERSION EQUAL "2" AND CMAKE_CACHE_MINOR_VERSION GREATER "7") #need cmake version 2.8
+	get_filename_component(TRUE_CMAKE_HOME_DIRECTORY "${CMAKE_HOME_DIRECTORY}" REALPATH)
+	get_filename_component(TRUE_CMAKE_BINARY_DIR "${CMAKE_BINARY_DIR}" REALPATH)
 	if(${TRUE_CMAKE_HOME_DIRECTORY} STREQUAL ${CMAKE_HOME_DIRECTORY})
 	else(${TRUE_CMAKE_HOME_DIRECTORY} STREQUAL ${CMAKE_HOME_DIRECTORY})
 		message(STATUS "Change link path '${CMAKE_HOME_DIRECTORY}' to true path '${TRUE_CMAKE_HOME_DIRECTORY}'")
@@ -58,13 +59,12 @@ if(UNIX AND NOT APPLE)
 		set(CMAKE_SOURCE_DIR "${TRUE_CMAKE_HOME_DIRECTORY}" CACHE TYPE INTERNAL FORCE)
 	endif(${TRUE_CMAKE_HOME_DIRECTORY} STREQUAL ${CMAKE_HOME_DIRECTORY})
 	
-	exec_program("${CMAKE_COMMAND} -E chdir \"${CMAKE_BINARY_DIR}\" pwd -P" OUTPUT_VARIABLE TRUE_CMAKE_BINARY_DIR)
 	if(${TRUE_CMAKE_BINARY_DIR} STREQUAL ${CMAKE_BINARY_DIR})
 	else(${TRUE_CMAKE_BINARY_DIR} STREQUAL ${CMAKE_BINARY_DIR})
 		message(STATUS "Change link path '${CMAKE_BINARY_DIR}' to true path '${TRUE_CMAKE_BINARY_DIR}'")
 		set(CMAKE_BINARY_DIR "${TRUE_CMAKE_BINARY_DIR}" CACHE TYPE INTERNAL FORCE)
 	endif(${TRUE_CMAKE_BINARY_DIR} STREQUAL ${CMAKE_BINARY_DIR})	
-endif(UNIX AND NOT APPLE)
+endif(CMAKE_CACHE_MAJOR_VERSION EQUAL "2" AND CMAKE_CACHE_MINOR_VERSION GREATER "7")
 
 ### Set some variables for Cmake
 SET(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR}/lib)