1 # Copyright (c) 2001, 2002 Steven Knight
2 # __FILE__ __REVISION__ __DATE__ __DEVELOPER__
5 SCons - a software construction tool
15 - Set PROGSUFFIX to .exe under Cygwin.
19 - Allow a library to specified as a command-line source file, not just
20 in the LIBS construction variable.
22 - Compensate for a bug in os.path.normpath() that returns '' for './'
25 - More performance optimizations: cache #include lines from files,
26 eliminate unnecessary calls.
30 - Flush stdout after print so it intermixes correctly with stderr
33 - Allow Scanners to return a list of strings, and document how to
34 write your own Scanners.
36 - Look up implicit (scanned) dependencies relative to the directory
37 of file being scanned.
41 - Make the scons script return an error code on failures.
45 RELEASE 0.04 - Wed, 30 Jan 2002 11:09:42 -0600
49 - Significant performance improvements in the Node.FS and
52 - Fix signatures of binary files on Win32 systems.
54 - Allow LIBS and LIBPATH to be strings, not just arrays.
56 - Print a traceback if a Python-function builder throws an exception.
60 - Fix using a directory as a Default(), and allow Default() to
61 support white space in file names for strings in arrays.
63 - Man page updates: corrected some mistakes, documented various
64 missing Environment methods, alphabetized the construction
65 variables and other functions, defined begin and end macros for
66 the example sections, regularized white space separation, fixed
67 the use of Export() in the Multiple Variants example.
69 - Function action fixes: None is now a successful return value.
70 Exceptions are now reported. Document function actions.
72 - Add 'Action' and 'Scanner' to the global keywords so SConscript
73 files can use them too.
75 - Removed the Wrapper class between Nodes and Walkers.
77 - Add examples using Library, LIBS, and LIBPATH.
79 - The C Scanner now always returns a sorted list of dependencies
80 so order changes don't cause unnecessary rebuilds.
82 - Strip $(-$) bracketed text from command lines. Use this to
83 surround $_INCDIRS and $_LIBDIRS so we don't rebuild in response
84 to changes to -I or -L options.
86 - Add the Ignore() method to ignore dependencies.
88 - Provide an error message when a nonexistent target is specified
91 - Remove targets before building them, and add an Environment
92 Precious() method to override that.
94 - Eliminate redundant calls to the same builder when the target is a
95 list of targets: Add a ListBuilder class that wraps Builders to
96 handle lists atomically. Extend the Task class to support building
97 and updating multiple targets in a single Task. Simplify the
98 interface between Task and Taskmaster.
100 - Add a --debug=pdb option to re-run SCons under the Python debugger.
102 - Only compute a build signature once for each node.
104 - Changes to our sys.path[] manipulation to support installation into
105 an arbitrary --prefix value.
109 - Add var=value command-line arguments.
113 RELEASE 0.03 - Fri, 11 Jan 2002 01:09:30 -0600
117 - Performance improvements in the Node.FS and Sig.Calculator classes.
119 - Add the InstallAs() method.
121 - Execute commands through an external interpreter (sh, cmd.exe, or
122 command.com) to handle redirection metacharacters.
124 - Allow the user to supply a command handler.
128 - Search both /usr/lib and /usr/local/lib for scons directories by
129 adding them both to sys.path, with whichever is in sys.prefix first.
131 - Fix interpreting strings of multiple white-space separated file names
132 as separate file names, allowing prefixes and suffixes to be appended
133 to each individually.
135 - Refactor to move CompositeBuilder initialization logic from the
136 factory wrapper to the __init__() method, and allow a Builder to
137 have both an action and a src_builder (or array of them).
139 - Refactor BuilderBase.__call__() to separate Node creation/lookup
140 from initialization of the Node's builder information.
142 - Add a CFile Builder object that supports turning lex (.l) and
143 yacc (.y) files into .c files.
145 - Document: variable interpretation attributes; how to propogate
146 the user's environment variables to executed commands; how to
147 build variants in multiple BuildDirs.
149 - Collect String, Dict, and List type-checking in common utility
150 routines so we can accept User{String,Dict,List}s all over.
152 - Put the Action factory and classes into their own module.
154 - Use one CPlusPlusAction in the Object Builder's action dictionary,
155 instead of letting it create multiple identical instances.
157 - Document the Install() and InstallAs() methods.
161 - Require that a Builder be given a name argument, supplying a
162 useful error message when it isn't.
166 - Add a "duplicate" keyword argument to BuildDir() that can be set
167 to prevent linking/copying source files into build directories.
169 - Add a "--debug=tree" option to print an ASCII dependency tree.
171 - Fetch the location of the Microsoft Visual C++ compiler(s) from
172 the Registry, instead of hard-coding the location.
174 - Made Scanner objects take Nodes, not path names.
176 - Have the C Scanner cache the #include file names instead of
177 (re-)scanning the file each time it's called.
179 - Created a separate class for parent "nodes" of file system roots,
180 eliminating the need for separate is-parent-null checks everywhere.
182 - Removed defined __hash__() and __cmp() methods from FS.Entry, in
183 favor of Python's more efficient built-in identity comparisons.
187 RELEASE 0.02 - Sun, 23 Dec 2001 19:05:09 -0600
191 - Added the Install(), BuildDir(), and Export() methods.
193 - Fix the -C option by delaying setting the top of the FS tree.
195 - Avoid putting the directory path on the libraries in the LIBS
196 construction variable.
198 - Added a GetBuildPath() method to return the full path to the
199 Node for a specified string.
201 - Fixed variable substitution in CPPPATH and LIBPATH.
205 - Fixed the version comment in the scons.bat (the UNIX geek used
208 - Fix to setup.py so it doesn't require a sys.argv[1] argument.
210 - Provide make-like warning message for "command not found" and
213 - Added an EXAMPLES section to the man page.
215 - Make Default() targets properly relative to their SConscript
220 - Documented CXXFLAGS, CXXCOM, and CPPPATH.
222 - Fixed SCONS_LIB_DIR to work as documented.
224 - Made Default() accept Nodes as arguments.
226 - Changed Export() to make it easier to use.
228 - Added the Import() and Return() methods.
232 RELEASE 0.01 - Thu Dec 13 19:25:23 CST 2001
234 A brief overview of important functionality available in release 0.01:
236 - C and C++ compilation on POSIX and Windows NT.
238 - Automatic scanning of C/C++ source files for #include dependencies.
240 - Support for building libraries; setting construction variables
241 allows creation of shared libraries.
243 - Library and C preprocessor search paths.
245 - File changes detected using MD5 signatures.
247 - User-definable Builder objects for building files.
249 - User-definable Scanner objects for scanning for dependencies.
251 - Parallel build (-j) support.
253 - Dependency cycles detected.
255 - Linux packages available in RPM and Debian format.
257 - Windows installer available.