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# - Find Java
# This module finds if Java is installed and determines where the
# include files and libraries are. This code sets the following
# variables:
#
# Java_JAVA_EXECUTABLE = the full path to the Java runtime
# Java_JAVA_EXECUTABLE = the full path to the Java compiler
# Java_JAVA_EXECUTABLE = the full path to the Java archiver
# Java_VERSION_STRING = Version of the package found (java version)
# Java_VERSION_MAJOR = The major version of the package found.
# Java_VERSION_MINOR = The minor version of the package found.
# Java_VERSION_PATCH = The patch version of the package found.
# The patch version may contains underscore '_'
#
#=============================================================================
# Copyright 2002-2009 Kitware, Inc.
# Copyright 2009 Mathieu Malaterre <mathieu.malaterre@gmail.com>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distributed this file outside of CMake, substitute the full
# License text for the above reference.)
SET(JAVA_BIN_PATH
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\2.0;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.9;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.8;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.7;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.6;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.5;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.4;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.3;JavaHome]/bin"
$ENV{JAVA_HOME}/bin
/usr/bin
/usr/lib/java/bin
/usr/share/java/bin
/usr/local/bin
/usr/local/java/bin
/usr/local/java/share/bin
/usr/java/j2sdk1.4.2_04
/usr/lib/j2sdk1.4-sun/bin
/usr/java/j2sdk1.4.2_09/bin
/usr/lib/j2sdk1.5-sun/bin
/opt/sun-jdk-1.5.0.04/bin
)
FIND_PROGRAM(Java_JAVA_EXECUTABLE
NAMES java
PATHS ${JAVA_BIN_PATH}
NO_DEFAULT_PATH
)
IF(Java_JAVA_EXECUTABLE)
EXECUTE_PROCESS(COMMAND ${Java_JAVA_EXECUTABLE} -version
RESULT_VARIABLE res
OUTPUT_VARIABLE var
ERROR_VARIABLE var # sun-java output to stderr
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_STRIP_TRAILING_WHITESPACE)
IF( res )
MESSAGE( FATAL_ERROR "Error executing java -version" )
ELSE()
# extract major/minor version and patch level from "java -version" output
# Tested on linux using
# 1. Sun
# 2. OpenJDK 1.6
# 3. GCJ 1.5
STRING( REGEX REPLACE ".* version \"([0-9]+\\.[0-9]+\\.[0-9_]+).*"
"\\1" Java_VERSION_STRING "${var}" )
STRING( REGEX REPLACE ".* version \"([0-9]+)\\.[0-9]+\\.[0-9_]+.*"
"\\1" Java_VERSION_MAJOR "${var}" )
STRING( REGEX REPLACE ".* version \"[0-9]+\\.([0-9]+)\\.[0-9_]+.*"
"\\1" Java_VERSION_MINOR "${var}" )
STRING( REGEX REPLACE ".* version \"[0-9]+\\.[0-9]+\\.([0-9_]+).*"
"\\1" Java_VERSION_PATCH "${var}" )
# display info
MESSAGE( STATUS "Java version ${Java_VERSION_STRING} configured successfully!" )
MESSAGE( STATUS "Java version ${Java_VERSION_MAJOR}.${Java_VERSION_MINOR} configured successfully!" )
ENDIF()
# If any version numbers are given to the command it will set the
# following variables before loading the module:
#
# XXX_FIND_VERSION = full requested version string
# XXX_FIND_VERSION_MAJOR = major version if requested, else 0
# XXX_FIND_VERSION_MINOR = minor version if requested, else 0
# XXX_FIND_VERSION_PATCH = patch version if requested, else 0
# XXX_FIND_VERSION_TWEAK = tweak version if requested, else 0
# XXX_FIND_VERSION_COUNT = number of version components, 0 to 4
# XXX_FIND_VERSION_EXACT = true if EXACT option was given
set(_java_version_acceptable TRUE)
if( Java_FIND_VERSION )
if( Java_FIND_VERSION_MAJOR GREATER Java_VERSION_MAJOR )
set(_java_version_acceptable FALSE)
endif( Java_FIND_VERSION_MAJOR GREATER Java_VERSION_MAJOR )
if( Java_FIND_VERSION_MINOR GREATER Java_VERSION_MINOR )
set(_java_version_acceptable FALSE)
endif( Java_FIND_VERSION_MINOR GREATER Java_VERSION_MINOR )
# Is it exact ?
if( Java_FIND_VERSION_EXACT )
# since GREATER operation worked ok, simply check LESS operation
if( Java_FIND_VERSION_MAJOR LESS Java_VERSION_MAJOR )
set(_java_version_acceptable FALSE)
endif( Java_FIND_VERSION_MAJOR LESS Java_VERSION_MAJOR )
if( Java_FIND_VERSION_MINOR LESS Java_VERSION_MINOR )
set(_java_version_acceptable FALSE)
endif( Java_FIND_VERSION_MINOR LESS Java_VERSION_MINOR )
endif( Java_FIND_VERSION_EXACT )
else( Java_FIND_VERSION )
# no version requested we are all set
endif( Java_FIND_VERSION )
ENDIF(Java_JAVA_EXECUTABLE)
FIND_PROGRAM(Java_JAR_EXECUTABLE
NAMES jar
PATHS ${JAVA_BIN_PATH}
NO_DEFAULT_PATH
)
FIND_PROGRAM(Java_JAVAC_EXECUTABLE
NAMES javac
PATHS ${JAVA_BIN_PATH}
NO_DEFAULT_PATH
)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Java DEFAULT_MSG
Java_JAVA_EXECUTABLE
Java_JAR_EXECUTABLE
Java_JAVAC_EXECUTABLE
_java_version_acceptable
)
# LEGACY
SET(JAVA_RUNTIME ${Java_JAVA_EXECUTABLE})
SET(JAVA_ARCHIVE ${Java_JAR_EXECUTABLE})
SET(JAVA_COMPILE ${Java_JAVAC_EXECUTABLE})
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