We now use .links() to detect if a C compiler function is available
or not, that way the user doesn't need to specify all the possible
includes for the check, which simplifies things considerably.
Also detect glibc stub functions that will never work and return
false for them.
Closes#437
On MSVC, shared libraries only export symbols that have been explicitly exported
either as part of the symbol prototype or via a module definitions file.
On compilers other than MSVC, all symbols are exported in the shared library by
default and the format for the list of symbols to export is different, so this
is only used with the VisualStudio compiler.
The module defs file path can either be relative to the current source directory
or an absolute path using meson.source_root() + '/some/path'
bool to_int() will return 0 or 1, useful if one wants to set
a define to 0 or 1 based on a boolean result instead of having
it just defined or undefined.
bool to_string() will return 'true' or 'false' by default same
as when using it to format a string, but with the additional
possibility to specify two extra string arguments to be returned
as true/false values, e.g. to_string('yes', 'no'). This can be
useful when outputting messages to be shown to the user.
A 'test_args.txt' file in the same directory as the test case will be
parsed by the test framework and the content will be passed as arguments
to meson during configuration. The arguments are put before any
'extra_args' to make them overwritable from the command line.
The ninja backend uses the '/MDd' switch when the tests are run, which
results in LNK4098 error, because the generator does not use the same
version of the Windows runtime library.
Jussi Pakkanen
Nirbheek Chauhan
Tim-Philipp Müller
Nicolas Schneider