CMake/Modules/CMakeDetermineJavaCompiler.cmake
Brad King 86578eccf2 Simplify CMake per-source license notices
Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool.  Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience.  Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.

Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices.  It also references version control
history for more precise information.  Therefore we no longer need to spell
out the list of Contributors in each source file notice.

Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing".  The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.

Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically.  Manually fix up shebang lines and trailing
newlines in a few files.  Manually update the notices in a few files that the
script does not handle.
2016-09-27 15:14:44 -04:00

95 lines
3.7 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
# determine the compiler to use for Java programs
# NOTE, a generator may set CMAKE_Java_COMPILER before
# loading this file to force a compiler.
if(NOT CMAKE_Java_COMPILER)
# prefer the environment variable CC
if(NOT $ENV{JAVA_COMPILER} STREQUAL "")
get_filename_component(CMAKE_Java_COMPILER_INIT $ENV{JAVA_COMPILER} PROGRAM PROGRAM_ARGS CMAKE_Java_FLAGS_ENV_INIT)
if(CMAKE_Java_FLAGS_ENV_INIT)
set(CMAKE_Java_COMPILER_ARG1 "${CMAKE_Java_FLAGS_ENV_INIT}" CACHE STRING "First argument to Java compiler")
endif()
if(NOT EXISTS ${CMAKE_Java_COMPILER_INIT})
message(SEND_ERROR "Could not find compiler set in environment variable JAVA_COMPILER:\n$ENV{JAVA_COMPILER}.")
endif()
endif()
if(NOT $ENV{JAVA_RUNTIME} STREQUAL "")
get_filename_component(CMAKE_Java_RUNTIME_INIT $ENV{JAVA_RUNTIME} PROGRAM PROGRAM_ARGS CMAKE_Java_FLAGS_ENV_INIT)
if(NOT EXISTS ${CMAKE_Java_RUNTIME_INIT})
message(SEND_ERROR "Could not find compiler set in environment variable JAVA_RUNTIME:\n$ENV{JAVA_RUNTIME}.")
endif()
endif()
if(NOT $ENV{JAVA_ARCHIVE} STREQUAL "")
get_filename_component(CMAKE_Java_ARCHIVE_INIT $ENV{JAVA_ARCHIVE} PROGRAM PROGRAM_ARGS CMAKE_Java_FLAGS_ENV_INIT)
if(NOT EXISTS ${CMAKE_Java_ARCHIVE_INIT})
message(SEND_ERROR "Could not find compiler set in environment variable JAVA_ARCHIVE:\n$ENV{JAVA_ARCHIVE}.")
endif()
endif()
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
/usr/local/jdk-1.7.0/bin
/usr/local/jdk-1.6.0/bin
)
# if no compiler has been specified yet, then look for one
if(CMAKE_Java_COMPILER_INIT)
set(CMAKE_Java_COMPILER ${CMAKE_Java_COMPILER_INIT} CACHE PATH "Java Compiler")
else()
find_program(CMAKE_Java_COMPILER
NAMES javac
PATHS ${Java_BIN_PATH}
)
endif()
# if no runtime has been specified yet, then look for one
if(CMAKE_Java_RUNTIME_INIT)
set(CMAKE_Java_RUNTIME ${CMAKE_Java_RUNTIME_INIT} CACHE PATH "Java Compiler")
else()
find_program(CMAKE_Java_RUNTIME
NAMES java
PATHS ${Java_BIN_PATH}
)
endif()
# if no archive has been specified yet, then look for one
if(CMAKE_Java_ARCHIVE_INIT)
set(CMAKE_Java_ARCHIVE ${CMAKE_Java_ARCHIVE_INIT} CACHE PATH "Java Compiler")
else()
find_program(CMAKE_Java_ARCHIVE
NAMES jar
PATHS ${Java_BIN_PATH}
)
endif()
endif()
mark_as_advanced(CMAKE_Java_COMPILER)
# configure variables set in this file for fast reload later on
configure_file(${CMAKE_ROOT}/Modules/CMakeJavaCompiler.cmake.in
${CMAKE_PLATFORM_INFO_DIR}/CMakeJavaCompiler.cmake @ONLY)
set(CMAKE_Java_COMPILER_ENV_VAR "JAVA_COMPILER")