[SVN-2103] Prevent unnecessary regeneration of JavaHL .class and .h files

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: trunk
• Fix Version/s: unscheduled
• Component/s: compile
• Assignee: Unassigned
• Reporter: Subversion Importer
• Created: 17/Oct/04 23:00
• Updated: 27/Oct/18 16:36
• Resolved: 05/Oct/05 16:48

Description

Currently, JavaHL class and header files are always recompiled, even if they
already exist. This patch upgrades our Java build system to only rebuild the
.class files when the .java files have changed and to only rebuild the .h files
when the .class files have changed.

* build/generator/gen-base.py
 (gen_base.TargetJavaClasses.add_dependencies): Add class file to
    dependency list instead of source file.

* build/generator/gen_make.py
  (gen_make.Generator.write): Switched TargetJavaClasses rules to
     depend on the object files instead of the source files. These
     object files are generated in a single call to 'javac'. This
     change prevents unnecessary regeneration of .class files.
  (gen_make.Generator.write): Switched TargetJavaHeaders rules to
     depend on the header files instead of the source files. These
     header files are generated in a single call to 'javah'. This
     change prevents unnecessary regeneration of .h files.
  (gen_make.Generator.write): Added code to keep track of
     dependencies for new TargetJavaHeaders and TargetJavaClasses rules

Original issue reported by djames

Issue Links

• blocks: SVN-2039 Fix JavaHL Dependencies
• is depended upon by: SVN-2039 Fix JavaHL Dependencies