CMake/Modules/FindJava.cmake
Bryan Donlan f5a3ec4d76 FindJava: Add support for OpenJDK early access builds
OpenJDK 9 early access builds use a version string of "9-ea", and
locally built installations use "9-internal", neither of which is
currently accepted by the FindJava macro.  Map those versions to "1.9".
If the final released version is "9.0" the version interpretation could
be changed to match at that time.
2017-05-04 10:49:17 -04:00

276 lines
9.8 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindJava
# --------
#
# Find Java
#
# This module finds if Java is installed and determines where the
# include files and libraries are. The caller may set variable JAVA_HOME
# to specify a Java installation prefix explicitly.
#
# See also the :module:`FindJNI` module to find Java development tools.
#
# Specify one or more of the following components as you call this find module. See example below.
#
# ::
#
# Runtime = User just want to execute some Java byte-compiled
# Development = Development tools (java, javac, javah and javadoc), includes Runtime component
# IdlJ = idl compiler for Java
# JarSigner = signer tool for jar
#
#
# This module sets the following result variables:
#
# ::
#
# Java_JAVA_EXECUTABLE = the full path to the Java runtime
# Java_JAVAC_EXECUTABLE = the full path to the Java compiler
# Java_JAVAH_EXECUTABLE = the full path to the Java header generator
# Java_JAVADOC_EXECUTABLE = the full path to the Java documentation generator
# Java_IDLJ_EXECUTABLE = the full path to the Java idl compiler
# Java_JAR_EXECUTABLE = the full path to the Java archiver
# Java_JARSIGNER_EXECUTABLE = the full path to the Java jar signer
# Java_VERSION_STRING = Version of java found, 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)
#
#
#
# The minimum required version of Java can be specified using the
# standard CMake syntax, e.g. find_package(Java 1.5)
#
# NOTE: ${Java_VERSION} and ${Java_VERSION_STRING} are not guaranteed to
# be identical. For example some java version may return:
# Java_VERSION_STRING = 1.5.0_17 and Java_VERSION = 1.5.0.17
#
# another example is the Java OEM, with: Java_VERSION_STRING = 1.6.0-oem
# and Java_VERSION = 1.6.0
#
# For these components the following variables are set:
#
# ::
#
# Java_FOUND - TRUE if all components are found.
# Java_<component>_FOUND - TRUE if <component> is found.
#
#
#
# Example Usages:
#
# ::
#
# find_package(Java)
# find_package(Java COMPONENTS Runtime)
# find_package(Java COMPONENTS Development)
include(${CMAKE_CURRENT_LIST_DIR}/CMakeFindJavaCommon.cmake)
# The HINTS option should only be used for values computed from the system.
set(_JAVA_HINTS)
if(_JAVA_HOME)
list(APPEND _JAVA_HINTS ${_JAVA_HOME}/bin)
endif()
list(APPEND _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"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\2.0;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.9;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.8;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.7;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\2.6;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.5;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.4;JavaHome]/bin"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.3;JavaHome]/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
/usr/local/jdk-1.7.0/bin
/usr/local/jdk-1.6.0/bin
)
find_program(Java_JAVA_EXECUTABLE
NAMES java
HINTS ${_JAVA_HINTS}
PATHS ${_JAVA_PATHS}
)
if(Java_JAVA_EXECUTABLE)
execute_process(COMMAND ${Java_JAVA_EXECUTABLE} -version
RESULT_VARIABLE res
OUTPUT_VARIABLE var
ERROR_VARIABLE var # sun-java output to stderr
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_STRIP_TRAILING_WHITESPACE)
if( res )
if(var MATCHES "No Java runtime present, requesting install")
set_property(CACHE Java_JAVA_EXECUTABLE
PROPERTY VALUE "Java_JAVA_EXECUTABLE-NOTFOUND")
elseif(${Java_FIND_REQUIRED})
message( FATAL_ERROR "Error executing java -version" )
else()
message( STATUS "Warning, could not run java -version")
endif()
else()
# extract major/minor version and patch level from "java -version" output
# Tested on linux using
# 1. Sun / Sun OEM
# 2. OpenJDK 1.6
# 3. GCJ 1.5
# 4. Kaffe 1.4.2
# 5. OpenJDK 1.7.x on OpenBSD
if(var MATCHES "java version \"([0-9]+\\.[0-9]+\\.[0-9_.]+.*)\"")
# This is most likely Sun / OpenJDK, or maybe GCJ-java compat layer
set(Java_VERSION_STRING "${CMAKE_MATCH_1}")
elseif(var MATCHES "openjdk version \"([0-9]+)-[a-z]+\"")
# OpenJDK 9 early access builds or locally built
set(Java_VERSION_STRING "1.${CMAKE_MATCH_1}.0")
elseif(var MATCHES "java full version \"kaffe-([0-9]+\\.[0-9]+\\.[0-9_]+)\"")
# Kaffe style
set(Java_VERSION_STRING "${CMAKE_MATCH_1}")
elseif(var MATCHES "openjdk version \"([0-9]+\\.[0-9]+\\.[0-9_]+.*)\"")
# OpenJDK ver 1.7.x on OpenBSD
set(Java_VERSION_STRING "${CMAKE_MATCH_1}")
else()
if(NOT Java_FIND_QUIETLY)
message(WARNING "regex not supported: ${var}. Please report")
endif()
endif()
string( REGEX REPLACE "([0-9]+).*" "\\1" Java_VERSION_MAJOR "${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()
endif()
endif()
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}
)
find_program(Java_JAVAH_EXECUTABLE
NAMES javah
HINTS ${_JAVA_HINTS}
PATHS ${_JAVA_PATHS}
)
find_program(Java_JAVADOC_EXECUTABLE
NAMES javadoc
HINTS ${_JAVA_HINTS}
PATHS ${_JAVA_PATHS}
)
find_program(Java_IDLJ_EXECUTABLE
NAMES idlj
HINTS ${_JAVA_HINTS}
PATHS ${_JAVA_PATHS}
)
find_program(Java_JARSIGNER_EXECUTABLE
NAMES jarsigner
HINTS ${_JAVA_HINTS}
PATHS ${_JAVA_PATHS}
)
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
if(Java_FIND_COMPONENTS)
set(_JAVA_REQUIRED_VARS)
foreach(component ${Java_FIND_COMPONENTS})
# User just want to execute some Java byte-compiled
If(component STREQUAL "Runtime")
list(APPEND _JAVA_REQUIRED_VARS Java_JAVA_EXECUTABLE)
if(Java_JAVA_EXECUTABLE)
set(Java_Runtime_FOUND TRUE)
endif()
elseif(component STREQUAL "Development")
list(APPEND _JAVA_REQUIRED_VARS Java_JAVA_EXECUTABLE Java_JAVAC_EXECUTABLE
Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE)
if(Java_JAVA_EXECUTABLE AND Java_JAVAC_EXECUTABLE
AND Java_JAVAH_EXECUTABLE AND Java_JAVADOC_EXECUTABLE)
set(Java_Development_FOUND TRUE)
endif()
elseif(component STREQUAL "IdlJ")
list(APPEND _JAVA_REQUIRED_VARS Java_IDLJ_EXECUTABLE)
if(Java_IDLJ_EXECUTABLE)
set(Java_IdlJ_FOUND TRUE)
endif()
elseif(component STREQUAL "JarSigner")
list(APPEND _JAVA_REQUIRED_VARS Java_JARSIGNER_EXECUTABLE)
if(Java_JARSIGNER_EXECUTABLE)
set(Java_JarSigner_FOUND TRUE)
endif()
else()
message(FATAL_ERROR "Comp: ${component} is not handled")
endif()
endforeach()
list (REMOVE_DUPLICATES _JAVA_REQUIRED_VARS)
find_package_handle_standard_args(Java
REQUIRED_VARS ${_JAVA_REQUIRED_VARS} HANDLE_COMPONENTS
VERSION_VAR Java_VERSION
)
if(Java_FOUND)
foreach(component ${Java_FIND_COMPONENTS})
set(Java_${component}_FOUND TRUE)
endforeach()
endif()
else()
# Check for Development
find_package_handle_standard_args(Java
REQUIRED_VARS Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE
Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE
VERSION_VAR Java_VERSION
)
endif()
mark_as_advanced(
Java_JAVA_EXECUTABLE
Java_JAR_EXECUTABLE
Java_JAVAC_EXECUTABLE
Java_JAVAH_EXECUTABLE
Java_JAVADOC_EXECUTABLE
Java_IDLJ_EXECUTABLE
Java_JARSIGNER_EXECUTABLE
)
# LEGACY
set(JAVA_RUNTIME ${Java_JAVA_EXECUTABLE})
set(JAVA_ARCHIVE ${Java_JAR_EXECUTABLE})
set(JAVA_COMPILE ${Java_JAVAC_EXECUTABLE})