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UseJava: Pass sources to javac using response file (#13028)

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The command line string passed to javac can exceed the 8191-character
limit on Windows when there are a large number of files to compile.
To avoid this, the list of sources is written to a file which is then
passed to javac as an argfile.  Spaces in paths are dealt with by
enclosing each file in quotes, and separating files with a newline.
This commit is contained in:
Graham Markall 2013-07-16 12:11:51 +01:00 committed by Brad King
parent 029e836a21
commit 177c0516ce
1 changed files with 7 additions and 1 deletions
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8
Modules/UseJava.cmake
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@ -190,6 +190,7 @@
#
#=============================================================================
# Copyright 2013 OpenGamma Ltd. <graham@opengamma.com>
# Copyright 2010-2011 Andreas schneider <asn@redhat.com>
# Copyright 2010 Ben Boeckel <ben.boeckel@kitware.com>
#
@ -367,6 +368,11 @@ function(add_jar _TARGET_NAME)
endif()
if (_JAVA_COMPILE_FILES)
# Create the list of files to compile.
set(_JAVA_SOURCES_FILE ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/java_sources)
string(REPLACE ";" "\"\n\"" _JAVA_COMPILE_STRING "\"${_JAVA_COMPILE_FILES}\"")
file(WRITE ${_JAVA_SOURCES_FILE} ${_JAVA_COMPILE_STRING})
# Compile the java files and create a list of class files
add_custom_command(
# NOTE: this command generates an artificial dependency file
@ -375,7 +381,7 @@ function(add_jar _TARGET_NAME)
${CMAKE_JAVA_COMPILE_FLAGS}
-classpath "${CMAKE_JAVA_INCLUDE_PATH_FINAL}"
-d ${CMAKE_JAVA_CLASS_OUTPUT_PATH}
${_JAVA_COMPILE_FILES}
@${_JAVA_SOURCES_FILE}
COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/java_compiled_${_TARGET_NAME}
DEPENDS ${_JAVA_COMPILE_FILES} ${_JAVA_COMPILE_DEPENDS}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}