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# Copyright (c) 2006-2011 Mathieu Malaterre <mathieu.malaterre@gmail.com>
#
# Redistribution and use is allowed according to the terms of the New
# BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
#
# This module will populate the following cmake variables:
# JavaProp_JAVA_LIBRARY_PATH
# JavaProp_OS_ARCH
# JavaProp_OS_NAME
# JavaProp_JAVA_HOME
# JavaProp_SUN_BOOT_LIBRARY_PATH
# JavaProp_PATH_SEPARATOR
# JavaProp_SUN_ARCH_DATA_MODEL
# I can't get FindJNI.cmake to work, so instead re-write one more robust
# which only requires javac and java being in the PATH
get_filename_component(current_list_path ${CMAKE_CURRENT_LIST_FILE} PATH)
find_package(Java 1.5 REQUIRED)
# need to re-run every time the setting for Java has changed:
# There is technically one caveat still, when one only modify
# Java_JAVA_EXECUTABLE from cmake-gui, everything is re-run properly except the
# FIND_PATH for jar and javac
if(JavaProp_JAVA_HOME)
get_filename_component(javarealpath
${Java_JAVA_EXECUTABLE}
REALPATH
)
get_filename_component(javahomesubdir
${JavaProp_JAVA_HOME}
PATH
)
string(REGEX MATCH "${javahomesubdir}"
outputvar
"${javarealpath}"
)
if(NOT outputvar)
message(STATUS "Need to re-execute JavaProp: ${outputvar}")
file(REMOVE
${CMAKE_BINARY_DIR}/GetSystemProperty.class
)
endif()
endif()
# For some reason I have to use two execute_process instead of a chained one...
if(${current_list_path}/GetSystemProperty.java IS_NEWER_THAN ${CMAKE_BINARY_DIR}/GetSystemProperty.class)
#message("${current_list_path}/GetSystemProperty.java")
#message("${CMAKE_CURRENT_BINARY_DIR}/GetSystemProperty.class")
execute_process(
COMMAND ${Java_JAVAC_EXECUTABLE} -source ${GDCM_JAVA_SOURCE_VERSION} -target ${GDCM_JAVA_TARGET_VERSION}
${current_list_path}/GetSystemProperty.java -d ${CMAKE_BINARY_DIR}
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
)
# populate the following list of java properties into CMake properties:
set(JAVA_PROPERTY_LIST
java.library.path
os.arch
os.name
java.home
sun.boot.library.path
path.separator # : / ;
sun.arch.data.model # 32 / 64
)
foreach(property ${JAVA_PROPERTY_LIST})
string(TOUPPER ${property} property_upper)
string(REPLACE "." "_" property_cmake_name ${property_upper})
execute_process(
COMMAND ${Java_JAVA_EXECUTABLE} GetSystemProperty ${property}
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
OUTPUT_VARIABLE ${property_cmake_name}
OUTPUT_STRIP_TRAILING_WHITESPACE
)
#message(STATUS "${property} : ${property_cmake_name} : ${${property_cmake_name}}")
set(JavaProp_${property_cmake_name} ${${property_cmake_name}}
CACHE STRING "Java Prop Value for: ${property}" FORCE
)
mark_as_advanced(
JavaProp_${property_cmake_name}
)
endforeach()
endif()
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