Class SConfBase

Constructor. Pass additional tests in the custom_tests-dictinary,
e.g. custom_tests={'CheckPrivate':MyPrivateTest}, where MyPrivateTest
defines a custom test.
Note also the conf_dir and log_file arguments (you may want to
build tests in the VariantDir, not in the SourceDir)

Overrides: object.__init__

Call this method after finished with your tests:
env = sconf.Finish()

Define a pre processor symbol name, with the optional given value in the
current config header.

If value is None (default), then #define name is written. If value is not
none, then #define name value is written.

comment is a string which will be put as a C comment in the
header, to explain the meaning of the value (appropriate C comments /* and
*/ will be put automatically.

Tries to build the given nodes immediately. Returns 1 on success,
0 on error.

Wrapper function for handling piped spawns.

This looks to the calling interface (in Action.py) like a "normal"
spawn, but associates the call with the PSPAWN variable from
the construction environment and with the streams to which we
want the output logged.  This gets slid into the construction
environment as the SPAWN variable so Action.py doesn't have to
know or care whether it's spawning a piped command or not.

Low level TryBuild implementation. Normally you don't need to
call that - you can use TryCompile / TryLink / TryRun instead

Compiles the program given in text to an env.Object, using extension
as file extension (e.g. '.c'). Returns 1, if compilation was
successful, 0 otherwise. The target is saved in self.lastTarget (for
further processing).

Compiles the program given in text to an executable env.Program,
using extension as file extension (e.g. '.c'). Returns 1, if
compilation was successful, 0 otherwise. The target is saved in
self.lastTarget (for further processing).

Compiles and runs the program given in text, using extension
as file extension (e.g. '.c'). Returns (1, outputStr) on success,
(0, '') otherwise. The target (a file containing the program's stdout)
is saved in self.lastTarget (for further processing).

Adds test_class to this SConf instance. It can be called with
self.test_name(...)

Adds all the tests given in the tests dictionary to this SConf
instance