split into OPT and BASECFLAGS (Makefile.pre.in rev. 1.108), because
now there are essential CFLAGS in BASECFLAGS.

The two long lines have been reflowed differently; hopefully someone on
BeOS can test them.  Rev. 1.53 also converted string.atoi() to int(); I've
left that alone.

[#413582] g++ must be called for c++ extensions
[#454030] distutils cannot link C++ code with GCC

topdir = "Lib/distutils"

* bcppcompiler.py
  (BCPPCompiler.create_static_lib): Fixed prototype, removing extra_preargs
  and extra_postargs parameters. Included target_lang parameter.
  (BCPPCompiler.link): Included target_lang parameter.

* msvccompiler.py
  (MSVCCompiler.create_static_lib): Fixed prototype, removing extra_preargs
  and extra_postargs parameters. Included target_lang parameter.
  (MSVCCompiler.link): Included target_lang parameter.

* ccompiler.py
  (CCompiler): New language_map and language_order attributes, used by
  CCompiler.detect_language().

  (CCompiler.detect_language): New method, will return the language of
  a given source, or list of sources. Individual source language is
  detected using the language_map dict. When mixed sources are used,
  language_order will stablish the language precedence.

  (CCompiler.create_static_lib, CCompiler.link, CCompiler.link_executable,
   CCompiler.link_shared_object, CCompiler.link_shared_lib):
  Inlcuded target_lang parameter.

* cygwinccompiler.py
  (CygwinCCompiler.link): Included target_lang parameter.

* emxccompiler.py
  (EMXCCompiler.link): Included target_lang parameter.

* mwerkscompiler.py
  (MWerksCompiler.link): Included target_lang parameter.

* extension.py
  (Extension.__init__): New 'language' parameter/attribute, initialized
  to None by default. If provided will overlap the automatic detection
  made by CCompiler.detect_language(), in build_ext command.

* sysconfig.py
  (customize_compiler): Check Makefile for CXX option, and also the
  environment variable CXX. Use the resulting value in the 'compiler_cxx'
  parameter of compiler.set_executables().

* unixccompiler.py
  (UnixCCompiler): Included 'compiler_cxx' in executables dict, defaulting
  to 'cc'.
  (UnixCCompiler.create_static_lib): Included target_lang parameter.
  (UnixCCompiler.link): Included target_lang parameter, and made
  linker command use compiler_cxx, if target_lang is 'c++'.

* command/build_ext.py
  (build_ext.build_extension): Pass new ext.language attribute
  to compiler.link_shared_object()'s target_lang parameter. If
  ext.language is not provided, detect language using
  compiler.detect_language(sources) instead.

* command/config.py
  (config._link): Pass already available lang parameter as target_lang
  parameter of compiler.link_executable().

customize_compiler() now looks at various environment variables and uses
   their values to override the configured C compiler/preprocessor/linker
   binary and flags.

calling Python was installed was so complicated, so I simplified it.

This should get the snake-farm's build scripts working again.

Fixed various MacPython-specific issues found by attempting to use the standard core setup.py for MacPython.

Fixes a bug for Solaris pkgtool (bdist_pkgtool) that would have
prevented it from building subpackages.

modules, distutils does not understand that the build version of the
source tree is needed.

This patch fixes distutils.sysconfig to understand that the running
Python is part of the build tree and needs to use the appropriate
"shape" of the tree. This does not assume anything about the current
directory, so can be used to build 3rd-party modules using Python's
build tree as well.

This is useful since it allows us to use a non-installed debug-mode
Python with 3rd-party modules for testing. It as the side-effect that
set_python_build() is no longer needed (the hack which was added to
allow distutils to be used to build the "standard" extension modules).

This closes SF patch #547734.

Closes patch #435381.

   This will have to stay until we decide to drop 1.5.2 compatibility
   completely.

Fixed.

modules and extensions on Windows is now $PREFIX/Lib/site-packages.
Includes backwards compatibility code for pre-2.2 Pythons.  Contributed
by Paul Moore.

but it still can't have any syntax errors.  Went a little too fast
there, Jack? :-)

Made distutils understand the MacPython Carbon runtime model. Distutils will build for the runtime model you are currently using for the interpreter.

sys.prefix + 'config/Makefile'. When building Python for the first
time, these files aren't there, so the files from the build tree have
to be used instead; this file adds an entry point for specifying that
the build tree files should be used.  (Perhaps 'set_python_build' should
should be preceded with an underscore?)

for done[n] can be integers as well as strings, but the code
concatenates them with strings (fixed by adding a str()) and calls
string.strip() on them (fixed by rearranging the logic)

(Presumably this wasn't noticed previously because parse_makefile()
was only called on Modules/Makefile, which contains no integer-valued
variables.)

  in a string (gives you something to do with the dictionary returned
  by 'parse_makefile()').
Pulled the regexes in 'parse_makefile()' out -- they're now globals,
  as 'expand_makefile_vars()' needs (two of) them.
Cosmetic tweaks to 'parse_makefile()'.

all that work when someone asks for a "configuration variable" from the
Makefile.  Details:
  - added 'get_config_vars()': responsible for calling one of the
    '_init_*()' functions to figure things out for this platform,
    and to provide an interface to the resulting dictionary
  - added 'get_config_var()' as a simple interface to the dictionary
    loaded by 'get_config_vars()'
  - changed the '_init_*()' functions so they load the global dictionary
    '_config_vars', rather than spewing their findings all over
    the module namespace
  - don't delete the '_init_*()' functions when done importing
  - adjusted 'customize_compiler()' to the new regime

comments are stripped and lines are joined according to the backslash
convention.

(With a worry-wart comment added by me about where we *should* add the
Python library to the link.)

in '_init_nt()' (they were kludges for CygwinCCompiler and no longer needed).

Ditched my old code that fixed relative paths in the Makefile -- didn't work,
  doomed to failure, etc.

information about building Python extensions that we discovered in
Python's makefile.  Currently only needed on Unix, so does nothing on
other systems.

  support the forthcoming Cygwin/Mingw32 GCC-on-Windows patch.
Standardized CVS id line.