# - 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_JAVAC_EXECUTABLE = the full path to the Java compiler # Java_JAR_EXECUTABLE = the full path to the Java archiver # Java_VERSION_STRING = Version of the package found (java version), eg. 1.6.0_12 # 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. # Java_VERSION_TWEAK = The tweak version of the package found (after '_') # Java_VERSION = This is set to: $major.$minor.$patch(.$tweak) # #============================================================================= # Copyright 2002-2009 Kitware, Inc. # Copyright 2009 Mathieu Malaterre # # 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.) # The HINTS option should only be used for values computed from the system. SET(_JAVA_HINTS "[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 ) # Hard-coded guesses should still go in PATHS. This ensures that the user # environment can always override hard guesses. SET(_JAVA_PATHS /usr/lib/java/bin /usr/share/java/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 HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) IF(Java_JAVA_EXECUTABLE) EXECUTE_PROCESS(COMMAND ${Java_JAVA_EXECUTABLE} -version RESULT_VARIABLE res OUTPUT_VARIABLE var ERROR_VARIABLE var # sun-java output to stderr OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_STRIP_TRAILING_WHITESPACE) IF( res ) MESSAGE( FATAL_ERROR "Error executing java -version" ) ELSE() # extract major/minor version and patch level from "java -version" output # Tested on linux using # 1. Sun # 2. OpenJDK 1.6 # 3. GCJ 1.5 # 4. Kaffe 1.4.2 IF(var MATCHES "java version \"[0-9]+\\.[0-9]+\\.[0-9_]+\".*") # This is most likely Sun / OpenJDK, or maybe GCJ-java compat layer STRING( REGEX REPLACE ".* version \"([0-9]+\\.[0-9]+\\.[0-9_]+).*" "\\1" Java_VERSION_STRING "${var}" ) ELSEIF(var MATCHES "java full version \"kaffe-[0-9]+\\.[0-9]+\\.[0-9_]+\".*") # Kaffe style STRING( REGEX REPLACE "java full version \"kaffe-([0-9]+\\.[0-9]+\\.[0-9_]+).*" "\\1" Java_VERSION_STRING "${var}" ) ELSE() message(FATAL_ERROR "regex not supported: ${var}. Please report") ENDIF() STRING( REGEX REPLACE "([0-9]+).*" "\\1" Java_VERSION_MAJOR "${Java_VERSION_STRING}" ) STRING( REGEX REPLACE "[0-9]+\\.([0-9]+).*" "\\1" Java_VERSION_MINOR "${Java_VERSION_STRING}" ) STRING( REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" Java_VERSION_PATCH "${Java_VERSION_STRING}" ) # warning tweak version can be empty: STRING( REGEX REPLACE "[0-9]+\\.[0-9]+\\.[0-9]+\\_?([0-9]*)$" "\\1" Java_VERSION_TWEAK "${Java_VERSION_STRING}" ) if( Java_VERSION_TWEAK STREQUAL "" ) # check case where tweak is not defined set(Java_VERSION ${Java_VERSION_MAJOR}.${Java_VERSION_MINOR}.${Java_VERSION_PATCH}) else( ) set(Java_VERSION ${Java_VERSION_MAJOR}.${Java_VERSION_MINOR}.${Java_VERSION_PATCH}.${Java_VERSION_TWEAK}) endif( ) # display info #MESSAGE( STATUS "Java version ${Java_VERSION_STRING} configured successfully!" ) # keep me, used for debug MESSAGE( STATUS "Java version ${Java_VERSION} configured successfully!" ) ENDIF() # check version if requested: set(_java_version_acceptable TRUE) if( Java_FIND_VERSION ) if("${Java_VERSION}" VERSION_LESS "${Java_FIND_VERSION}") set(_java_version_acceptable FALSE) endif("${Java_VERSION}" VERSION_LESS "${Java_FIND_VERSION}") if( Java_FIND_VERSION_EXACT ) if("${Java_VERSION}" VERSION_GREATER "${Java_FIND_VERSION}") set(_java_version_acceptable FALSE) endif("${Java_VERSION}" VERSION_GREATER "${Java_FIND_VERSION}") endif( Java_FIND_VERSION_EXACT ) endif( Java_FIND_VERSION ) ENDIF(Java_JAVA_EXECUTABLE) FIND_PROGRAM(Java_JAR_EXECUTABLE NAMES jar HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) FIND_PROGRAM(Java_JAVAC_EXECUTABLE NAMES javac HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) include(FindPackageHandleStandardArgs) find_package_handle_standard_args(Java DEFAULT_MSG Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE _java_version_acceptable ) MARK_AS_ADVANCED( Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE ) # LEGACY SET(JAVA_RUNTIME ${Java_JAVA_EXECUTABLE}) SET(JAVA_ARCHIVE ${Java_JAR_EXECUTABLE}) SET(JAVA_COMPILE ${Java_JAVAC_EXECUTABLE})