Autoconf-like configuration support.
In other words, SConf allows to run tests on the build machine to detect
capabilities of system and do some things based on result: generate config
files, header files for C/C++, update variables in environment.
Tests on the build system can detect if compiler sees header files, if
libraries are installed, if some command line options are supported etc.
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SConfWarning
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SConfError
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ConfigureDryRunError
Raised when a file or directory needs to be updated during a Configure
process, but the user requested a dry-run
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ConfigureCacheError
Raised when a use explicitely requested the cache feature, but the test
is run the first time.
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SConfBuildInfo
Special build info for targets of configure tests. Additional members
are result (did the builder succeed last time?) and string, which
contains messages of the original build phase.
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Streamer
'Sniffer' for a file-like writable object. Similar to the unix tool tee.
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SConfBuildTask
This is almost the same as SCons.Script.BuildTask. Handles SConfErrors
correctly and knows about the current cache_mode.
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SConfBase
This is simply a class to represent a configure context. After
creating a SConf object, you can call any tests. After finished with your
tests, be sure to call the Finish() method, which returns the modified
environment.
Some words about caching: In most cases, it is not necessary to cache
Test results explicitely. Instead, we use the scons dependency checking
mechanism. For example, if one wants to compile a test program
(SConf.TryLink), the compiler is only called, if the program dependencies
have changed. However, if the program could not be compiled in a former
SConf run, we need to explicitely cache this error.
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CheckContext
Provides a context for configure tests. Defines how a test writes to the
screen and log file.
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SetCacheMode(mode)
Set the Configure cache mode. mode must be one of "auto", "force",
or "cache". |
source code
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SetProgressDisplay(display)
Set the progress display to use (called from SCons.Script) |
source code
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CreateConfigHBuilder(env)
Called if necessary just before the building targets phase begins. |
source code
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| CheckFunc(context,
function_name,
header=None,
language=None) |
source code
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CheckType(context,
type_name,
includes='',
language=None) |
source code
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CheckTypeSize(context,
type_name,
includes='',
language=None,
expect=None) |
source code
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CheckDeclaration(context,
declaration,
includes='',
language=None) |
source code
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createIncludesFromHeaders(headers,
leaveLast,
include_quotes='""') |
source code
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CheckHeader(context,
header,
include_quotes='<>',
language=None)
A test for a C or C++ header file. |
source code
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CheckCHeader(context,
header,
include_quotes='""')
A test for a C header file. |
source code
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CheckCXXHeader(context,
header,
include_quotes='""')
A test for a C++ header file. |
source code
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CheckLib(context,
library=None,
symbol='main',
header=None,
language=None,
autoadd=1)
A test for a library. See also CheckLibWithHeader.
Note that library may also be None to test whether the given symbol
compiles without flags. |
source code
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CheckLibWithHeader(context,
libs,
header,
language,
call=None,
autoadd=1)
Another (more sophisticated) test for a library.
Checks, if library and header is available for language (may be 'C'
or 'CXX'). Call maybe be a valid expression _with_ a trailing ';'.
As in CheckLib, we support library=None, to test if the call compiles
without extra link flags. |
source code
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