When installing Meson, distutils may choose to put shim scripts in the
`PATH` that only set up the egg requirements before launching the real
`meson.py` contained in the egg.
This means that `__file__` points to the real `meson.py` file, but
launching it directly is doomed to fail as it's missing the metadata
contained in the shim to set up the path egg, resulting in errors when
trying to import the `mesonbuild` module.
A similar issue affects Meson when installed as a zipapp, with the
current code going great lengths to figure out how to relaunch itself.
Using `argv[0]` avoids these issues as it gives us the way the current
executable has been launched, so we are pretty much guaranteed that
using it will create another instance of the same executable. We only
need to resolve relative paths as the current working directory may
get changed before re-launching the script, and using `realpath()` for
that saves us the trouble of manually resolving links and getting caught
in endless loops.
This also mean that `meson_script_file` no longer necessarily point to a
absolute file, so rename it to `_launcher` which hopefully would be less
prone to inducing false assumptions.
With C/C++, on Windows you don't need to pass any arguments for a static
library to be PIC. On UNIX platforms you need to pass -fPIC.
Other languages such as D have compiler-specific PIC arguments required
for PIC support in static libraries on UNIX platforms.
This kwarg allows people to specify which static libraries should be
built with PIC support. This is usually used for static libraries that
will be linked into shared libraries.
W: 31, 4: Duplicate key 'HAVE_UNSETENV' in dictionary (duplicate-key)
Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
* tools/ac_converter: fix undefined variable 'func'
E:283,11: Undefined variable 'func' (undefined-variable)
Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
* tools/ac_converter: use spaces properly in HAVE_SOCKET
C: 97, 0: Exactly one space required after comma
'HAVE_SOCKET' : ('socket',' sys/socket.h'),
^ (bad-whitespace)
This also might cause some issue after conversion.
Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Reuse the standard evaluate_codeblock() parsing since it does proper
error handling, and also handles, for instance, lists in string
arguments (flatten), etc. properly.
We need to declare more variables in advance now, but that should be ok.
Otherwise they are built regardless of whether they are actually used by
anything else. Only build them if they're going to be installed or
always-built.
Ideally, we should also do this with all BuildTargets, and provide
a mechanism for people to specify which targets they want built with
'all', and a way for people to add them to custom targets.. Without
this, things like tests and examples are *always* built with no way to
turn that off.
For now, we just do this because it also with tests that check for
dependency issues. Including all CustomTargets in `all` results in
dangling targets to also be built, which hides the problem and makes it
racy.
self.dep_rules is not set anywhere by anything, so this code always
results in a no-op. If it didn't result in a no-op, it would need to be
seriously rewritten because it has bitrotten and makes no sense anymore.
When installing Meson distutils may choose to put shim scripts in the
PATH that only set up the egg requirements before launching the real
`meson.py` contained in the egg.
This means that __file__ points to the real `meson.py` file, but
launching it directly is doomed to fail as it's missing the metadata
contained in the shim to set up the path egg, resulting in errors when
trying to import the `mesonbuild` module.
A similar issue affects Meson when installed as a zipapp, with the
current code going great lengths to figure out how to relaunch itself.
Using argv[0] avoids these issues as it gives us the way the current
executable has been launched, so we are pretty much guaranteed that
using it will create another instance of the same executable.
Igor Gnatenko
Emanuele Aina
Jussi Pakkanen
Nirbheek Chauhan
Patrick Griffis
Igor Gnatenko
Elliott Sales de Andrade
Sam Thursfield