Building a cross compiler (`build == host != target`) is not cross
compiling. As such, it doesn't make sense to handle it under
`is_cross_build`.
(N.B. Building a standard library for a cross compiler would require
cross compiling, but Meson has support to do such a thing as part of a
compiler build currently.)
We can't just do compiler.has_builtin_define('_M_IX86'), because the
VisualStudioCCompiler class doesn't implement has_builtin_define(), and
getting the compiler to disgorge it's builtin defines isn't easy...
But we can now use the target we stored when we identifed the compiler.
Also update comment appropriately
Store the MSVC compiler target architecture ('x86', 'x64' or 'ARM' (this
is ARM64, I believe)), rather than just if it's x64 or not.
The regex used for target architecture should be ok, based on this list
of [1] version outputs, but we assume x86 if no match, for safety's
sake.
[1] https://stackoverflow.com/a/1233332/1951600
Also detect arch even if cl outputs version to stdout.
Ditto for clang-cl
Future work: is_64 is now only used in get_instruction_set_args()
Starting with VS 2017, `Platform` is not always set (f.ex., if you use
VsDevCmd.bat directly instead of vcvars*.bat), but `VSCMD_ARG_HOST_ARCH`
is always set, so try that first.
samu prints a different message when the build is a no-op, so make
assertBuildIsNoop consider that as well.
Also, if compile_commands.json cannot be found, just skip the test. This
seems reasonable since meson just produces a warning if `ninja -t compdb`
fails.
Finally, only capture stdout in run_meson_command_tests.py, since the
backend may print messages the tests don't recognize to stderr.
Fixes#3405.
Write command line options into a separate file to be able to
reconfigure from scatch in the case coredata cannot be loaded. The most
common case is when we are reconfiguring with a newer meson version.
This means that we should try as much as possible to maintain backward
compatibility for the cmd_line.txt file format.
The main difference with a normal reconfigure is it will use new
default options values and will read again environment variables like
CFLAGS, etc.
Handle clang's cl or clang-cl being in PATH, or set in CC/CXX
Future work: checking the name of the executable here seems like a bad idea.
These compilers will fail to be detected if they are renamed.
v2:
Update compiler.get_argument_type() test
Fix comparisons of id inside CCompiler, backends and elsewhere
v3:
ClangClCPPCompiler should be a subclass of ClangClCCompier, as well
Future work: mocking in test_find_library_patterns() is effected, as we
now test for a subclass, rather than self.id in CCompiler.get_library_naming()
It's much better to directly query the machine in question rather than
do some roundabout "is_cross" thing. This is the first step for much
natve- and cross- code path deduplication.
For existing use cases, pointer equality sufficies, but structural is
much better going forward: these are intended to be immutable
descriptors of the machines.
Instead of just putting these together in the interpreter, put them
together in `environment.py` so Meson's implementation can also better
take advantage of them.
* Enums are strongly typed and make the whole
`gcc_type`/`clang_type`/`icc_type` distinction
redundant.
* Enums also allow extending via member functions,
which makes the code more generalisable.
I believe the intent (from 30d0c2292f) is
that `[binaries]` isn't needed just for "target-only cross" (build ==
host != target). This fixes the code to match that, hopefully clarifying
the control flow in the process, and also improves the message to make
that clear.
Daniel Mensinger
John Ericson
John Ericson
Jussi Pakkanen
Jon Turney
Nirbheek Chauhan
John Preston
Dylan Baker
Michael Forney
Phillip Cao
Xavier Claessens
Aki Van Ness
Mohammed Amer Khalidi
Masanori Kakura
Ross Burton
Alexey Brodkin
GoaLitiuM
David Seifert
FFY00
mohdamerkhalidi