2 # __FILE__ __REVISION__ __DATE__ __DEVELOPER__
5 SCons - a software construction tool
15 - Use .dll (not .so) for shared libraries on Cygwin; use -fPIC
18 - Use 'rm' to remove files under Cygwin.
20 - Add a PLATFORM variable to construction environments.
22 - Remove the "platform" argument from tool specifications.
24 - Propogate PYTHONPATH when running the regression tests so distutils
25 can be found in non-standard locations.
29 - Pass an Environment to the Options validator method, and
30 add an Options.Save() method.
34 - Add support for Java (javac and jar).
36 - Propagate the external SYSTEMROOT environment variable into ENV on
37 Win32 systems, so external commands that use sockets will work.
39 - Add a .posix attribute to PathList expansions.
41 - Check out CVS source files using POSIX path names (forward slashes
42 as separators) even on Win32.
44 - Add Node.clear() and Node.FS.Entry.clear() methods to wipe out a
45 Node's state, allowing it to be re-evaluated by continuous
46 integration build interfaces.
50 - Add support for using Ghostscript to convert Postscript to PDF files.
54 RELEASE 0.13 - Mon, 31 Mar 2003 20:22:00 -0600
58 - Fix a bug when BuildDir(duplicate=0) is used and SConscript
59 files are called from within other SConscript files.
61 - Support (older) versions of Perforce which don't set the Windows
66 RELEASE 0.12 - Thu, 27 Mar 2003 23:52:09 -0600
70 - Added support for the Perforce source code management system.
72 - Fix str(Node.FS) so that it returns a path relative to the calling
73 SConscript file's directory, not the top-level directory.
75 - Added support for a separate src_dir argument to SConscript()
76 that allows explicit specification of where the source files
77 for an SConscript file can be found.
79 - Support more easily re-usable flavors of command generators by
80 calling callable variables when strings are expanded.
84 - Added an INSTALL construction variable that can be set to a function
85 to control how the Install() and InstallAs() Builders install files.
86 The default INSTALL function now copies, not links, files.
88 - Remove deprecated features: the "name" argument to Builder objects,
89 and the Environment.Update() method.
91 - Add an Environment.SourceCode() method to support fetching files
92 from source code systems. Add factory methods that create Builders
93 to support BitKeeper, CVS, RCS, and SCCS. Add support for fetching
94 files from RCS or SCCS transparently (like GNU Make).
96 - Make the internal to_String() function more efficient.
98 - Make the error message the same as other build errors when there's a
99 problem unlinking a target file in preparation for it being built.
101 - Make TARGET, TARGETS, SOURCE and SOURCES reserved variable names and
102 warn if the user tries to set them in a construction environment.
104 - Add support for Tar and Zip files.
106 - Better documentation of the different ways to export variables to a
107 subsidiary SConscript file. Fix documentation bugs in a tools
108 example, places that still assumed SCons split strings on white
111 - Support fetching arbitrary files from the TARGETS or SOURCES lists
112 (e.g. ${SOURCES[2]}) when calculating the build signature of a
115 - Don't silently swallow exceptions thrown by Scanners (or other
116 exceptions while finding a node's dependent children).
118 - Push files to CacheDir() before calling the superclass built()
119 method (which may clear the build signature as part of clearing
120 cached implicit dependencies, if the file has a source scanner).
121 (Bug reported by Jeff Petkau.)
123 - Raise an internal error if we attempt to push a file to CacheDir()
124 with a build signature of None.
126 - Add an explicit Exit() function for terminating early.
128 - Change the documentation to correctly describe that the -f option
129 doesn't change to the directory in which the specified file lives.
131 - Support changing directories locally with SConscript directory
132 path names relative to any SConstruct file specified with -f.
133 This allows you to build in another directory by simply changing
134 there and pointing at the SConstruct file in another directory.
136 - Change the default SConscriptChdir() behavior to change to the
137 SConscript directory while it's being read.
139 - Fix an exception thrown when the -U option was used with no
140 Default() target specified.
142 - Fix -u so that it builds things in corresponding build directories
143 when used in a source directory.
147 - Add SharedObject() support to the masm tool.
149 - Fix WhereIs() to return normalized paths.
153 - Don't copy a built file to a CacheDir() if it's already there.
155 - Avoid partial copies of built files in a CacheDir() by copying
156 to a temporary file and renaming.
160 - Fix incorrect dependency-cycle errors when an Aliased source doesn't
165 RELEASE 0.11 - Tue, 11 Feb 2003 05:24:33 -0600
169 - Add support for IRIX and the SGI MIPSPro tool chain.
171 - Support using the MSVC tool chain when running Cygwin Python.
175 - Avoid losing signal bits in the exit status from a command,
176 helping terminate builds on interrupt (CTRL+C).
180 - Added new AddPreAction() and AddPostAction() functions that support
181 taking additional actions before or after building specific targets.
183 - Add support for the PharLap ETS tool chain.
187 - Allow Python function Actions to specify a list of construction
188 variables that should be included in the Action's signature.
190 - Allow libraries in the LIBS variable to explicitly include the prefix
191 and suffix, even when using the GNU linker.
192 (Bug reported by Neal Becker.)
194 - Use DOS-standard CR-LF line endings in the scons.bat file.
195 (Bug reported by Gary Ruben.)
197 - Doc changes: Eliminate description of deprecated "name" keyword
198 argument from Builder definition (reported by Gary Ruben).
200 - Support using env.Append() on BUILDERS (and other dictionaries).
201 (Bug reported by Bj=F6rn Bylander.)
203 - Setting the BUILDERS construction variable now properly clears
204 the previous Builder attributes from the construction Environment.
205 (Bug reported by Bj=F6rn Bylander.)
207 - Fix adding a prefix to a file when the target isn't specified.
208 (Bug reported by Esa Ilari Vuokko.)
210 - Clean up error messages from problems duplicating into read-only
211 BuildDir directories or into read-only files.
213 - Add a CommandAction.strfunction() method, and add an "env" argument
214 to the FunctionAction.strfunction() method, so that all Action
215 objects have strfunction() methods, and the functions for building
216 and returning a string both take the same arguments.
218 - Add support for new CacheDir() functionality to share derived files
219 between builds, with related options --cache-disable, --cache-force,
222 - Change the default behavior when no targets are specified to build
223 everything in the current directory and below (like Make). This
224 can be disabled by specifying Default(None) in an SConscript.
226 - Revamp SCons installation to fix a case-sensitive installation
227 on Win32 systems, and to add SCons-specific --standard-lib,
228 --standalone-lib, and --version-lib options for easier user
229 control of where the libraries get installed.
231 - Fix the ability to directly import and use Platform and Tool modules
232 that have been implicitly imported into an Environment().
234 - Add support for allowing an embedding interface to annotate a node
237 - Extend the SConscript() function to accept build_dir and duplicate
238 keyword arguments that function like a BuildDir() call.
242 - Fix the output of -c -n when directories are involved, so it
247 - Use a different shared object suffix (.os) when using gcc so shared
248 and static objects can exist side-by-side in the same directory.
250 - Allow the same object files on Win32 to be linked into either
251 shared or static libraries.
253 - Cache implicit cache values when using --implicit-cache.
257 RELEASE 0.10 - Thu, 16 Jan 2003 04:11:46 -0600
259 From Derrick 'dman' Hudson:
261 - Support Repositories on other file systems by symlinking or
262 copying files when hard linking won't work.
266 - Remove Python bytecode (*.pyc) files from the scons-local packages.
268 - Have FunctionActions print a description of what they're doing
269 (a representation of the Python call).
271 - Fix the Install() method so that, like other actions, it prints
272 what would have happened when the -n option is used.
274 - Don't create duplicate source files in a BuildDir when the -n
277 - Refactor the Scanner interface to eliminate unnecessary Scanner
278 calls and make it easier to write efficient scanners.
280 - Added a "recursive" flag to Scanner creation that specifies the
281 Scanner should be invoked recursively on dependency files returned
284 - Significant performance improvement from using a more efficient
285 check, throughout the code, for whether a Node has a Builder.
287 - Fix specifying only the source file to MultiStepBuilders such as
288 the Program Builder. (Bug reported by Dean Bair.)
290 - Fix an exception when building from a file with the same basename as
291 the subdirectory in which it lives. (Bug reported by Gerard Patel.)
293 - Fix automatic deduction of a target file name when there are
294 multiple source files specified; the target is now deduced from just
295 the first source file in the list.
297 - Documentation fixes: better initial explanation of SConscript files;
298 fix a misformatted "table" in the StaticObject explanation.
300 From Steven Knight and Steve Leblanc:
302 - Fix the -c option so it will remove symlinks.
306 - Add a Clean() method to support removing user-specified targets
307 when using the -c option.
309 - Add a development script for running SCons through PyChecker.
311 - Clean up things found by PyChecker (mostly unnecessary imports).
313 - Add a script to use HappyDoc to create HTML class documentation.
317 - Make the Environment.get() method return None by default.
321 - Add SetJobs() and GetJobs() methods to allow configuration of the
322 number of default jobs (still overridden by -j).
324 - Convert the .sconsign file format from ASCII to a pickled Python
327 - Error message cleanups: Made consistent the format of error
328 messages (now all start with "scons: ***") and warning messages (now
329 all start with "scons: warning:"). Caught more cases with the "Do
330 not know how to build" error message.
332 - Added support for the MinGW tool chain.
334 - Added a --debug=includes option.
338 RELEASE 0.09 - Thu, 5 Dec 2002 04:48:25 -0600
342 - Add a Prepend() method to Environments, to append values to
343 the beginning of construction variables.
347 - Add long command-line support to the "lib" Tool (Microsoft library
352 - Allow $$ in a string to be passed through as $.
354 - Support file names with odd characters in them.
356 - Add support for construction variable substition on scanner
357 directories (in CPPPATH, F77PATH, LIBPATH, etc.).
359 From Charles Crain and Steven Knight:
361 - Add Repository() functionality, including the -Y option.
365 - Fix auto-deduction of target names so that deduced targets end
366 up in the same subdirectory as the source.
368 - Don't remove source files specified on the command line!
370 - Suport the Intel Fortran Compiler (ifl.exe).
372 - Supply an error message if there are no command-line or
373 Default() targets specified.
375 - Fix the ASPPCOM values for the GNU assembler.
376 (Bug reported by Brett Polivka.)
378 - Fix an exception thrown when a Default() directory was specified
379 when using the -U option.
381 - Issue a warning when -c can't remove a target.
383 - Eliminate unnecessary Scanner calls by checking for the
384 existence of a file before scanning it. (This adds a generic
385 hook to check an arbitrary condition before scanning.)
387 - Add explicit messages to tell when we're "Reading SConscript files
388 ...," "done reading SConscript files," "Building targets," and
389 "done building targets." Add a -Q option to supress these.
391 - Add separate $SHOBJPREFIX and $SHOBJSUFFIX construction variables
392 (by default, the same as $OBJPREFIX and $OBJSUFFIX).
394 - Add Make-like error messages when asked to build a source file,
395 and before trying to build a file that doesn't have all its source
396 files (including when an invalid drive letter is used on WIN32).
398 - Add an scons-local-{version} package (in both .tar.gz and .zip
399 flavors) to help people who want to ship SCons as a stand-alone
400 build tool in their software packages.
402 - Prevent SCons from unlinking files in certain situations when
403 the -n option is used.
405 - Change the name of Tool/lib.py to Tool/mslib.py.
407 From Steven Knight and Anthony Roach:
409 - Man page: document the fact that Builder calls return Node objects.
413 - Refactor option processing to use our own version of Greg Ward's
414 Optik module, modified to run under Python 1.5.2.
416 - Add a ParseConfig() command to modify an environment based on
417 parsing output from a *-config command.
421 - Fix interpretation of '#/../foo' on Win32 systems.
425 - Fixed use of command lines with spaces in their arguments,
426 and use of Nodes with spaces in their string representation.
428 - Make access and modification times of files in a BuildDir match
429 the source file, even when hard linking isn't available.
431 - Make -U be case insensitive on Win32 systems.
433 - Issue a warning and continue when finding a corrupt .sconsign file.
435 - Fix using an alias as a dependency of a target so that if one of the
436 alias' dependencies gets rebuilt, the resulting target will, too.
438 - Fix differently ordered targets causing unnecessary rebuilds
439 on case insensitive systems.
441 - Use os.system() to execute external commands whenever the "env"
442 utility is available, which is much faster than fork()/exec(),
443 and fixes the -j option on several platforms.
445 - Fix use of -j with multiple targets.
447 - Add an Options() object for friendlier accomodation of command-
450 - Add support for Microsoft VC++ precompiled header (.pch) files,
451 debugger (.pdb) files, and resource (.rc) files.
453 - Don't compute the $_CPPINCFLAGS, $_F77INCFLAGS, $_LIBFLAGS and
454 $_LIBDIRFLAGS variables each time a command is executed, define
455 them so they're computed only as needed. Add a new _concat
456 function to the Environment that allows people to define their
457 own similar variables.
459 - Fix dependency scans when $LIBS is overridden.
461 - Add EnsurePythonVersion() and EnsureSConsVersion() functions.
463 - Fix the overly-verbose stack trace on ListBuilder build errors.
465 - Add a SetContentSignatureType() function, allowing use of file
466 timestamps instead of MD5 signatures.
468 - Make -U and Default('source') fail gracefully.
470 - Allow the File() and Dir() methods to take a path-name string as
471 the starting directory, in addition to a Dir object.
473 - Allow the command handler to be selected via the SPAWN, SHELL
474 and ESCAPE construction variables.
476 - Allow construction variables to be overridden when a Builder
481 - Dynamically check for the existence of utilities with which to
482 initialize Environments by default.
486 RELEASE 0.08 - Mon, 15 Jul 2002 12:08:51 -0500
490 - Fixed a bug with relative CPPPATH dirs when using BuildDir().
491 (Bug reported by Bob Summerwill.)
493 - Added a warnings framework and a --warn option to enable or
496 - Make the C scanner warn users if files referenced by #include
497 directives cannot be found and --warn=dependency is specified.
499 - The BUILDERS construction variable should now be a dictionary
500 that maps builder names to actions. Existing uses of lists,
501 and the Builder name= keyword argument, generate warnings
502 about use of deprecated features.
504 - Removed the "shared" keyword argument from the Object and
507 - Added separated StaticObject, SharedObject, StaticLibrary and
508 SharedLibrary builders. Made Object and Library synonyms for
509 StaticObject and StaticLibrary, respectively.
511 - Add LIBS and LIBPATH dependencies for shared libraries.
513 - Removed support for the prefix, suffix and src_suffix arguments
514 to Builder() to be callable functions.
516 - Fix handling file names with multiple dots.
518 - Allow a build directory to be outside of the SConstruct tree.
520 - Add a FindFile() function that searches for a file node with a
523 - Add $CPPFLAGS to the shared-object command lines for g++ and gcc.
525 From Charles Crain and Steven Knight:
527 - Add a "tools=" keyword argument to Environment instantiation,
528 and a separate Tools() method, for more flexible specification
529 of tool-specific environment changes.
533 - Add a "platform=" keyword argument to Environment instantiation,
534 and a separate Platform() method, for more flexible specification
535 of platform-specific environment changes.
537 - Updated README instructions and setup.py code to catch an
538 installation failure from not having distutils installed.
540 - Add descriptions to the -H help text for -D, -u and -U so
541 people can tell them apart.
543 - Remove the old feature of automatically splitting strings
544 of file names on white space.
546 - Add a dependency Scanner for native Fortran "include" statements,
547 using a new "F77PATH" construction variable.
549 - Fix C #include scanning to detect file names with characters like
552 - Add more specific version / build output to the -v option.
554 - Add support for the GNU as, Microsoft masm, and nasm assemblers.
556 - Allow the "target" argument to a Builder call to be omitted, in
557 which case the target(s) are deduced from the source file(s) and the
558 Builder's specified suffix.
560 - Add a tar archive builder.
562 - Add preliminary support for the OS/2 Platform, including the icc
567 - Fix --implicit-cache if the scanner returns an empty list.
571 - Add a "multi" keyword argument to Builder creation that specifies
572 it's okay to call the builder multiple times for a target.
574 - Set a "multi" on Aliases so multiple calls will append to an Alias.
576 - Fix emitter functions' use of path names when using BuildDir or
579 - Fix --implicit-cache causing redundant rebuilds when the header
582 - Fix --implicit-cache when a file has no implicit dependencies and
583 its source is generated.
585 - Make the drive letters on Windows always be the same case, so that
586 changes in the case of drive letters don't cause a rebuild.
588 - Fall back to importing the SCons.TimeStamp module if the SCons.MD5
589 module can't be imported.
591 - Fix interrupt handling to guarantee that a single interrupt will
592 halt SCons both when using -j and not.
594 - Fix .sconsign signature storage so that output files of one build
595 can be safely used as input files to another build.
597 - Added a --debug=time option to print SCons execution times.
599 - Print an error message if a file can't be unlinked before being
600 built, rather than just silently terminating the build.
602 - Add a SideEffect() method that can be used to tell the build
603 engine that a given file is created as a side effect of building
604 a target. A file can be specified as a side effect of more than
605 one build comand, in which case the commands will not be executed
608 - Significant performance gains from not using our own version of
609 the inefficient stock os.path.splitext() method, caching source
610 suffix computation, code cleanup in MultiStepBuilder.__call__(),
611 and replicating some logic in scons_subst().
613 - Add --implicit-deps-changed and --implicit-deps-unchanged options.
615 - Add a GetLaunchDir() function.
617 - Add a SetBuildSignatureType() function.
621 - Add an Append() method to Environments, to append values to
622 construction variables.
624 - Change the name of Update() to Replace(). Keep Update() as a
625 deprecated synonym, at least for now.
629 - Use a $PYTHON construction variable, initialized to sys.executable,
630 when using Python to build parts of the SCons packages.
632 - Use sys.prefix, not sys.exec_prefix, to find pdb.py.
636 RELEASE 0.07 - Thu, 2 May 2002 13:37:16 -0500
640 - Changes to build SCons packages on IRIX (and other *NIces).
642 - Don't create a directory Node when a file already exists there,
645 - Add 'dirs' and 'names' keyword arguments to SConscript for
646 easier specification of subsidiary SConscript files.
650 - Internal cleanup of environment passing to function Actions.
652 - Builders can now take arbitrary keyword arguments to create
653 attributes to be passed to: command generator functions,
654 FunctionAction functions, Builder emitter functions (below),
655 and prefix/suffix generator functions (below).
657 - Command generator functions can now return ANYTHING that can be
658 converted into an Action (a function, a string, a CommandGenerator
659 instance, even an ActionBase instance).
661 - Actions now call get_contents() with the actual target and source
662 nodes used for the build.
664 - A new DictCmdGenerator class replaces CompositeBuilder to support
665 more flexible Builder behavior internally.
667 - Builders can now take an emitter= keyword argument. An emitter
668 is a function that takes target, source, and env argument, then
669 return a 2-tuple of (new sources, new targets). The emitter is
670 called when the Builder is __call__'ed, allowing a user to modify
671 source and target lists.
673 - The prefix, suffix and src_suffix Builder arguments now take a
674 callable as well a string. The callable is passed the Environment
675 and any extra Builder keyword arguments and is expected to return
676 the appropriate prefix or suffix.
678 - CommandActions can now be a string, a list of command + argument
679 strings, or a list of commands (strings or lists).
681 - Added shared library support. The Object and Library Builders now
682 take a "shared=1" keyword argument to specify that a shared object
683 or shared library should be built. It is an error to try to build
684 static objects into a shared library or vice versa.
686 - Win32 support for .def files has been added. Added the Win32-specific
687 construction variables $WIN32DEFPREFIX, $WIN32DEFSUFFIX,
688 $WIN32DLLPREFIX and $WIN32IMPLIBPREFIX. When building a .dll,
689 the new construction variable $WIN32_INSERT_DEF, controls whether
690 the appropriately-named .def file is inserted into the target
691 list (if not already present). A .lib file is always added to
692 a Library build if not present in the list of targets.
694 - ListBuilder now passes all targets to the action, not just the first.
696 - Fix so that -c now deletes generated yacc .h files.
698 - Builder actions and emitter functions can now be initialized, through
699 construction variables, to things other than strings.
701 - Make top-relative '#/dir' lookups work like '#dir'.
703 - Fix for relative CPPPATH directories in subsidiary SConscript files
706 - Add a for_signature argument to command generators, so that
707 generators that need to can return distinct values for the
708 command signature and for executing the command.
712 - Create a better scons.bat file from a py2bat.py script on the Python
713 mailing list two years ago (modeled after pl2bat.pl).
717 - Fix so that -c -n does *not* remove the targets!
719 - Man page: Add a hierarchical libraries + Program example.
721 - Support long MSVC linker command lines through a builder action
722 that writes to a temporary file and uses the magic MSVC "link @file"
723 argument syntax if the line is longer than 2K characters.
725 - Fix F77 command-line options on Win32 (use /Fo instead of -o).
727 - Use the same action to build from .c (lower case) and .C (upper
728 case) files on case-insensitive systems like Win32.
730 - Support building a PDF file directly from a TeX or LaTeX file
731 using pdftex or pdflatex.
733 - Add a -x option to runtest.py to specify the script being tested.
734 A -X option indicates it's an executable, not a script to feed
735 to the Python interpreter.
737 - Add a Split() function (identical to SCons.Util.argmunge()) for use
738 in the next release, when Builders will no longer automatically split
739 strings on white space.
743 - Add the SConscriptChdir() method.
747 - Fix --debug=tree when used with directory targets.
749 - Significant internal restructuring of Scanners and Taskmaster.
751 - Added new --debug=dtree option.
753 - Fixes for --profile option.
755 - Performance improvement in construction variable substitution.
757 - Implemented caching of content signatures, plus added --max-drift
758 option to control caching.
760 - Implemented caching of dependency signatures, enabled by new
761 --implicit-cache option.
763 - Added abspath construction variable modifier.
765 - Added $SOURCE variable as a synonym for $SOURCES[0].
767 - Write out .sconsign files on error or interrupt so intermediate
768 build results are saved.
770 - Change the -U option to -D. Make a new -U that builds just the
771 targets from the local SConscript file.
773 - Fixed use of sys.path so Python modules can be imported from
774 the SConscript directory.
776 - Fix for using Aliases with the -u, -U and -D options.
778 - Fix so that Nodes can be passed to SConscript files.
782 - Changes for official Debian packaging.
786 RELEASE 0.06 - Thu, 28 Mar 2002 01:24:29 -0600
790 - Fix command generators to expand construction variables.
792 - Make FunctionAction arguments be Nodes, not strings.
794 From Stephen Kennedy:
796 - Performance: Use a dictionary, not a list, for a Node's parents.
800 - Add .zip files to the packages we build.
802 - Man page: document LIBS, fix a typo, document ARGUMENTS.
804 - Added RANLIB and RANLIBFLAGS construction variables. Only use them
805 in ARCOM if there's a "ranlib" program on the system.
807 - Add a configurable CFILESUFFIX for the Builder of .l and .y files
810 - Add a CXXFile Builder that turns .ll and .yy files into .cc files
811 (configurable via a CXXFILESUFFIX construction variable).
813 - Use the POSIX-standard lex -t flag, not the GNU-specific -o flag.
814 (Bug reported by Russell Christensen.)
816 - Fixed an exception when CPPPATH or LIBPATH is a null string.
817 (Bug reported by Richard Kiss.)
819 - Add a --profile=FILE option to make profiling SCons easier.
821 - Modify the new DVI builder to create .dvi files from LaTeX (.ltx
824 - Add support for Aliases (phony targets).
826 - Add a WhereIs() method for searching for path names to executables.
828 - Add PDF and PostScript document builders.
830 - Add support for compiling Fortran programs from a variety of
831 suffixes (a la GNU Make): .f, .F, .for, .FOR, .fpp and .FPP
833 - Support a CPPFLAGS variable on all default commands that use the
838 - Add support for the -U option.
840 - Allow CPPPATH, LIBPATH and LIBS to be specified as white-space
843 - Add a document builder to create .dvi files from TeX (.tex) files.
847 - Fix: Construction variables with values of 0 were incorrectly
850 - Support env['VAR'] to fetch construction variable values.
852 - Man page: document Precious().
856 RELEASE 0.05 - Thu, 21 Feb 2002 16:50:03 -0600
860 - Set PROGSUFFIX to .exe under Cygwin.
864 - Allow a library to specified as a command-line source file, not just
865 in the LIBS construction variable.
867 - Compensate for a bug in os.path.normpath() that returns '' for './'
870 - More performance optimizations: cache #include lines from files,
871 eliminate unnecessary calls.
873 - If a prefix or suffix contains white space, treat the resulting
874 concatenation as separate arguments.
876 - Fix irregularities in the way we fetch DevStudio information from
877 the Windows registry, and in our registry error handling.
881 - Flush stdout after print so it intermixes correctly with stderr
884 - Allow Scanners to return a list of strings, and document how to
885 write your own Scanners.
887 - Look up implicit (scanned) dependencies relative to the directory
888 of file being scanned.
890 - Make writing .sconsign files more robust by first trying to write
891 to a temp file that gets renamed.
893 - Create all of the directories for a list of targets before trying
894 to build any of the targets.
896 - WIN32 portability fixes in tests.
898 - Allow the list of variables exported to an SConscript file to be
901 - Document the overlooked LIBPATH construction variable.
902 (Bug reported by Eicke Godehardt.)
904 - Fix so that Ignore() ignores indirect, implicit dependencies
905 (included files), not just direct dependencies.
907 - Put the man page in the Debian distribution.
909 - Run HTML docs through tidy to clean up the HTML (for Konqueror).
911 - Add preliminary support for Unicode strings.
913 - Efficiency: don't scan dependencies more than once during the
916 - Fix the -c option so it doesn't stop removing targets if one doesn't
918 (Bug reported by Paul Connell.)
920 - Fix the --debug=pdb option when run on Windows NT.
921 (Bug reported by Paul Connell.)
923 - Add support for the -q option.
927 - Add support for the -u option.
929 - Add .cc and .hh file suffixes to the C Scanner.
933 - Make the scons script return an error code on failures.
935 - Add support for using code to generate a command to build a target.
939 RELEASE 0.04 - Wed, 30 Jan 2002 11:09:42 -0600
943 - Significant performance improvements in the Node.FS and
946 - Fix signatures of binary files on Win32 systems.
948 - Allow LIBS and LIBPATH to be strings, not just arrays.
950 - Print a traceback if a Python-function builder throws an exception.
954 - Fix using a directory as a Default(), and allow Default() to
955 support white space in file names for strings in arrays.
957 - Man page updates: corrected some mistakes, documented various
958 missing Environment methods, alphabetized the construction
959 variables and other functions, defined begin and end macros for
960 the example sections, regularized white space separation, fixed
961 the use of Export() in the Multiple Variants example.
963 - Function action fixes: None is now a successful return value.
964 Exceptions are now reported. Document function actions.
966 - Add 'Action' and 'Scanner' to the global keywords so SConscript
967 files can use them too.
969 - Removed the Wrapper class between Nodes and Walkers.
971 - Add examples using Library, LIBS, and LIBPATH.
973 - The C Scanner now always returns a sorted list of dependencies
974 so order changes don't cause unnecessary rebuilds.
976 - Strip $(-$) bracketed text from command lines. Use this to
977 surround $_INCDIRS and $_LIBDIRS so we don't rebuild in response
978 to changes to -I or -L options.
980 - Add the Ignore() method to ignore dependencies.
982 - Provide an error message when a nonexistent target is specified
985 - Remove targets before building them, and add an Environment
986 Precious() method to override that.
988 - Eliminate redundant calls to the same builder when the target is a
989 list of targets: Add a ListBuilder class that wraps Builders to
990 handle lists atomically. Extend the Task class to support building
991 and updating multiple targets in a single Task. Simplify the
992 interface between Task and Taskmaster.
994 - Add a --debug=pdb option to re-run SCons under the Python debugger.
996 - Only compute a build signature once for each node.
998 - Changes to our sys.path[] manipulation to support installation into
999 an arbitrary --prefix value.
1003 - Add var=value command-line arguments.
1007 RELEASE 0.03 - Fri, 11 Jan 2002 01:09:30 -0600
1011 - Performance improvements in the Node.FS and Sig.Calculator classes.
1013 - Add the InstallAs() method.
1015 - Execute commands through an external interpreter (sh, cmd.exe, or
1016 command.com) to handle redirection metacharacters.
1018 - Allow the user to supply a command handler.
1022 - Search both /usr/lib and /usr/local/lib for scons directories by
1023 adding them both to sys.path, with whichever is in sys.prefix first.
1025 - Fix interpreting strings of multiple white-space separated file names
1026 as separate file names, allowing prefixes and suffixes to be appended
1027 to each individually.
1029 - Refactor to move CompositeBuilder initialization logic from the
1030 factory wrapper to the __init__() method, and allow a Builder to
1031 have both an action and a src_builder (or array of them).
1033 - Refactor BuilderBase.__call__() to separate Node creation/lookup
1034 from initialization of the Node's builder information.
1036 - Add a CFile Builder object that supports turning lex (.l) and
1037 yacc (.y) files into .c files.
1039 - Document: variable interpretation attributes; how to propogate
1040 the user's environment variables to executed commands; how to
1041 build variants in multiple BuildDirs.
1043 - Collect String, Dict, and List type-checking in common utility
1044 routines so we can accept User{String,Dict,List}s all over.
1046 - Put the Action factory and classes into their own module.
1048 - Use one CPlusPlusAction in the Object Builder's action dictionary,
1049 instead of letting it create multiple identical instances.
1051 - Document the Install() and InstallAs() methods.
1055 - Require that a Builder be given a name argument, supplying a
1056 useful error message when it isn't.
1060 - Add a "duplicate" keyword argument to BuildDir() that can be set
1061 to prevent linking/copying source files into build directories.
1063 - Add a "--debug=tree" option to print an ASCII dependency tree.
1065 - Fetch the location of the Microsoft Visual C++ compiler(s) from
1066 the Registry, instead of hard-coding the location.
1068 - Made Scanner objects take Nodes, not path names.
1070 - Have the C Scanner cache the #include file names instead of
1071 (re-)scanning the file each time it's called.
1073 - Created a separate class for parent "nodes" of file system roots,
1074 eliminating the need for separate is-parent-null checks everywhere.
1076 - Removed defined __hash__() and __cmp() methods from FS.Entry, in
1077 favor of Python's more efficient built-in identity comparisons.
1081 RELEASE 0.02 - Sun, 23 Dec 2001 19:05:09 -0600
1085 - Added the Install(), BuildDir(), and Export() methods.
1087 - Fix the -C option by delaying setting the top of the FS tree.
1089 - Avoid putting the directory path on the libraries in the LIBS
1090 construction variable.
1092 - Added a GetBuildPath() method to return the full path to the
1093 Node for a specified string.
1095 - Fixed variable substitution in CPPPATH and LIBPATH.
1099 - Fixed the version comment in the scons.bat (the UNIX geek used
1102 - Fix to setup.py so it doesn't require a sys.argv[1] argument.
1104 - Provide make-like warning message for "command not found" and
1107 - Added an EXAMPLES section to the man page.
1109 - Make Default() targets properly relative to their SConscript
1110 file's subdirectory.
1114 - Documented CXXFLAGS, CXXCOM, and CPPPATH.
1116 - Fixed SCONS_LIB_DIR to work as documented.
1118 - Made Default() accept Nodes as arguments.
1120 - Changed Export() to make it easier to use.
1122 - Added the Import() and Return() methods.
1126 RELEASE 0.01 - Thu Dec 13 19:25:23 CST 2001
1128 A brief overview of important functionality available in release 0.01:
1130 - C and C++ compilation on POSIX and Windows NT.
1132 - Automatic scanning of C/C++ source files for #include dependencies.
1134 - Support for building libraries; setting construction variables
1135 allows creation of shared libraries.
1137 - Library and C preprocessor search paths.
1139 - File changes detected using MD5 signatures.
1141 - User-definable Builder objects for building files.
1143 - User-definable Scanner objects for scanning for dependencies.
1145 - Parallel build (-j) support.
1147 - Dependency cycles detected.
1149 - Linux packages available in RPM and Debian format.
1151 - Windows installer available.