266 lines
9.0 KiB
CMake
266 lines
9.0 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#.rst:
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# FindJava
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# --------
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#
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# Find Java
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#
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# This module finds if Java is installed and determines where the
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# include files and libraries are. The caller may set variable JAVA_HOME
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# to specify a Java installation prefix explicitly.
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#
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# See also the :module:`FindJNI` module to find Java development tools.
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#
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# Specify one or more of the following components as you call this find module. See example below.
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#
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# ::
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#
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# Runtime = User just want to execute some Java byte-compiled
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# Development = Development tools (java, javac, javah and javadoc), includes Runtime component
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# IdlJ = idl compiler for Java
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# JarSigner = signer tool for jar
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#
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#
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# This module sets the following result variables:
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#
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# ::
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#
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# Java_JAVA_EXECUTABLE = the full path to the Java runtime
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# Java_JAVAC_EXECUTABLE = the full path to the Java compiler
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# Java_JAVAH_EXECUTABLE = the full path to the Java header generator
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# Java_JAVADOC_EXECUTABLE = the full path to the Java documentation generator
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# Java_IDLJ_EXECUTABLE = the full path to the Java idl compiler
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# Java_JAR_EXECUTABLE = the full path to the Java archiver
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# Java_JARSIGNER_EXECUTABLE = the full path to the Java jar signer
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# Java_VERSION_STRING = Version of java found, eg. 1.6.0_12
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# Java_VERSION_MAJOR = The major version of the package found.
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# Java_VERSION_MINOR = The minor version of the package found.
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# Java_VERSION_PATCH = The patch version of the package found.
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# Java_VERSION_TWEAK = The tweak version of the package found (after '_')
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# Java_VERSION = This is set to: $major.$minor.$patch(.$tweak)
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#
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#
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#
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# The minimum required version of Java can be specified using the
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# standard CMake syntax, e.g. find_package(Java 1.5)
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#
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# NOTE: ${Java_VERSION} and ${Java_VERSION_STRING} are not guaranteed to
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# be identical. For example some java version may return:
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# Java_VERSION_STRING = 1.5.0_17 and Java_VERSION = 1.5.0.17
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#
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# another example is the Java OEM, with: Java_VERSION_STRING = 1.6.0-oem
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# and Java_VERSION = 1.6.0
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#
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# For these components the following variables are set:
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#
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# ::
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#
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# Java_FOUND - TRUE if all components are found.
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# Java_<component>_FOUND - TRUE if <component> is found.
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#
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#
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#
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# Example Usages:
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#
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# ::
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#
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# find_package(Java)
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# find_package(Java COMPONENTS Runtime)
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# find_package(Java COMPONENTS Development)
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include(${CMAKE_CURRENT_LIST_DIR}/CMakeFindJavaCommon.cmake)
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# The HINTS option should only be used for values computed from the system.
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set(_JAVA_HINTS)
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if(_JAVA_HOME)
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list(APPEND _JAVA_HINTS ${_JAVA_HOME}/bin)
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endif()
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list(APPEND _JAVA_HINTS
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\2.0;JavaHome]/bin"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.9;JavaHome]/bin"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.8;JavaHome]/bin"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.7;JavaHome]/bin"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.6;JavaHome]/bin"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.5;JavaHome]/bin"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.4;JavaHome]/bin"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.3;JavaHome]/bin"
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)
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# Hard-coded guesses should still go in PATHS. This ensures that the user
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# environment can always override hard guesses.
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set(_JAVA_PATHS
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/usr/lib/java/bin
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/usr/share/java/bin
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/usr/local/java/bin
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/usr/local/java/share/bin
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/usr/java/j2sdk1.4.2_04
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/usr/lib/j2sdk1.4-sun/bin
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/usr/java/j2sdk1.4.2_09/bin
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/usr/lib/j2sdk1.5-sun/bin
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/opt/sun-jdk-1.5.0.04/bin
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/usr/local/jdk-1.7.0/bin
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/usr/local/jdk-1.6.0/bin
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)
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find_program(Java_JAVA_EXECUTABLE
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NAMES java
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HINTS ${_JAVA_HINTS}
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PATHS ${_JAVA_PATHS}
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)
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if(Java_JAVA_EXECUTABLE)
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execute_process(COMMAND ${Java_JAVA_EXECUTABLE} -version
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RESULT_VARIABLE res
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OUTPUT_VARIABLE var
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ERROR_VARIABLE var # sun-java output to stderr
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_STRIP_TRAILING_WHITESPACE)
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if( res )
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if(var MATCHES "No Java runtime present, requesting install")
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set_property(CACHE Java_JAVA_EXECUTABLE
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PROPERTY VALUE "Java_JAVA_EXECUTABLE-NOTFOUND")
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elseif(${Java_FIND_REQUIRED})
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message( FATAL_ERROR "Error executing java -version" )
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else()
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message( STATUS "Warning, could not run java -version")
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endif()
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else()
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# extract major/minor version and patch level from "java -version" output
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# Tested on linux using
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# 1. Sun / Sun OEM
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# 2. OpenJDK 1.6
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# 3. GCJ 1.5
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# 4. Kaffe 1.4.2
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# 5. OpenJDK 1.7.x on OpenBSD
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if(var MATCHES "java version \"([0-9]+\\.[0-9]+\\.[0-9_.]+.*)\"")
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# This is most likely Sun / OpenJDK, or maybe GCJ-java compat layer
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set(Java_VERSION_STRING "${CMAKE_MATCH_1}")
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elseif(var MATCHES "java full version \"kaffe-([0-9]+\\.[0-9]+\\.[0-9_]+)\"")
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# Kaffe style
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set(Java_VERSION_STRING "${CMAKE_MATCH_1}")
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elseif(var MATCHES "openjdk version \"([0-9]+\\.[0-9]+\\.[0-9_]+.*)\"")
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# OpenJDK ver 1.7.x on OpenBSD
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set(Java_VERSION_STRING "${CMAKE_MATCH_1}")
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else()
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if(NOT Java_FIND_QUIETLY)
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message(WARNING "regex not supported: ${var}. Please report")
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endif()
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endif()
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string( REGEX REPLACE "([0-9]+).*" "\\1" Java_VERSION_MAJOR "${Java_VERSION_STRING}" )
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string( REGEX REPLACE "[0-9]+\\.([0-9]+).*" "\\1" Java_VERSION_MINOR "${Java_VERSION_STRING}" )
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string( REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" Java_VERSION_PATCH "${Java_VERSION_STRING}" )
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# warning tweak version can be empty:
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string( REGEX REPLACE "[0-9]+\\.[0-9]+\\.[0-9]+[_\\.]?([0-9]*).*$" "\\1" Java_VERSION_TWEAK "${Java_VERSION_STRING}" )
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if( Java_VERSION_TWEAK STREQUAL "" ) # check case where tweak is not defined
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set(Java_VERSION ${Java_VERSION_MAJOR}.${Java_VERSION_MINOR}.${Java_VERSION_PATCH})
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else()
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set(Java_VERSION ${Java_VERSION_MAJOR}.${Java_VERSION_MINOR}.${Java_VERSION_PATCH}.${Java_VERSION_TWEAK})
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endif()
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endif()
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endif()
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find_program(Java_JAR_EXECUTABLE
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NAMES jar
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HINTS ${_JAVA_HINTS}
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PATHS ${_JAVA_PATHS}
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)
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find_program(Java_JAVAC_EXECUTABLE
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NAMES javac
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HINTS ${_JAVA_HINTS}
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PATHS ${_JAVA_PATHS}
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)
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find_program(Java_JAVAH_EXECUTABLE
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NAMES javah
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HINTS ${_JAVA_HINTS}
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PATHS ${_JAVA_PATHS}
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)
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find_program(Java_JAVADOC_EXECUTABLE
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NAMES javadoc
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HINTS ${_JAVA_HINTS}
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PATHS ${_JAVA_PATHS}
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)
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find_program(Java_IDLJ_EXECUTABLE
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NAMES idlj
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HINTS ${_JAVA_HINTS}
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PATHS ${_JAVA_PATHS}
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)
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find_program(Java_JARSIGNER_EXECUTABLE
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NAMES jarsigner
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HINTS ${_JAVA_HINTS}
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PATHS ${_JAVA_PATHS}
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)
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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if(Java_FIND_COMPONENTS)
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set(_JAVA_REQUIRED_VARS)
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foreach(component ${Java_FIND_COMPONENTS})
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# User just want to execute some Java byte-compiled
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If(component STREQUAL "Runtime")
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list(APPEND _JAVA_REQUIRED_VARS Java_JAVA_EXECUTABLE)
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if(Java_JAVA_EXECUTABLE)
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set(Java_Runtime_FOUND TRUE)
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endif()
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elseif(component STREQUAL "Development")
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list(APPEND _JAVA_REQUIRED_VARS Java_JAVA_EXECUTABLE Java_JAVAC_EXECUTABLE
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Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE)
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if(Java_JAVA_EXECUTABLE AND Java_JAVAC_EXECUTABLE
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AND Java_JAVAH_EXECUTABLE AND Java_JAVADOC_EXECUTABLE)
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set(Java_Development_FOUND TRUE)
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endif()
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elseif(component STREQUAL "IdlJ")
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list(APPEND _JAVA_REQUIRED_VARS Java_IDLJ_EXECUTABLE)
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if(Java_IDLJ_EXECUTABLE)
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set(Java_IdlJ_FOUND TRUE)
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endif()
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elseif(component STREQUAL "JarSigner")
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list(APPEND _JAVA_REQUIRED_VARS Java_JARSIGNER_EXECUTABLE)
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if(Java_JARSIGNER_EXECUTABLE)
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set(Java_JarSigner_FOUND TRUE)
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endif()
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else()
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message(FATAL_ERROR "Comp: ${component} is not handled")
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endif()
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endforeach()
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list (REMOVE_DUPLICATES _JAVA_REQUIRED_VARS)
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find_package_handle_standard_args(Java
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REQUIRED_VARS ${_JAVA_REQUIRED_VARS} HANDLE_COMPONENTS
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VERSION_VAR Java_VERSION
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)
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if(Java_FOUND)
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foreach(component ${Java_FIND_COMPONENTS})
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set(Java_${component}_FOUND TRUE)
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endforeach()
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endif()
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else()
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# Check for Development
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find_package_handle_standard_args(Java
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REQUIRED_VARS Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE
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Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE
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VERSION_VAR Java_VERSION
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)
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endif()
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mark_as_advanced(
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Java_JAVA_EXECUTABLE
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Java_JAR_EXECUTABLE
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Java_JAVAC_EXECUTABLE
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Java_JAVAH_EXECUTABLE
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Java_JAVADOC_EXECUTABLE
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Java_IDLJ_EXECUTABLE
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Java_JARSIGNER_EXECUTABLE
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)
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# LEGACY
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set(JAVA_RUNTIME ${Java_JAVA_EXECUTABLE})
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set(JAVA_ARCHIVE ${Java_JAR_EXECUTABLE})
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set(JAVA_COMPILE ${Java_JAVAC_EXECUTABLE})
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