Causes spammy warnings from the linker:
ld: warning: -headerpad_max_install_names is ignored when used with -bitcode_bundle (Xcode setting ENABLE_BITCODE=YES)
so: when building compile args, meson is deduplicating flags. When a
compiler argument is appended, a later appearance of a dedup'ed is going
to remove a earlier one. If the argument is prepended, the element
*before* the new one is going to be removed. And that is where the
problem reported in https://github.com/mesonbuild/meson/pull/7119 is
coming in. In the revision linked there, the order of replacement in the
prepend case was revesered.
With this patch, we restore this behaviour again.
The linker that comes with MSVC does not understand the /openmp flag.
This results in a string of
LINK : warning LNK4044: unrecognized option '/openmp'; ignored
warnings, one for each static_library linked with an executable.
Avoid this by only setting the linker openmp flag when the compiler is
not MSVC.
the previous optimizations from 4524088d38
were not relaly good, and not really scaleable, since only the lookup
was improved. However, the really heavy calls to remove have not been
improved.
With this commit we are refactoring CompilerArgs into a data structure
which does not use remove at all. This works that we are building a pre
and post list, which gets flushed into __container at some point.
However, we build pre and post by deduplicating forward. Later on, when
we are flushing pre and post into __container, we are deduplicating
backwards the list, so we are not changing behaviour here.
This overall cuts off 10s of the efl configuration time. Further more
this improves configure times on arm devices a lot more, since remove
does seem to be a lot slower there. In general this results in the fact
that __iadd__ is not within the top 5 of costly functions in
generate_single_complie.
Simmilar to gcc, the list of pre-processor defines can be fetched with
`-dM -E` option. The way cpu_family is determined on linux relies on
this list.
Fixes incorrect value of cpu_family on linux, when crosscompiling:
```
CC="clang -m32" meson ./build
```
Signed-off-by: Yevhenii Kolesnikov <yevhenii.kolesnikov@globallogic.com>
Co-authored-by: Dylan Baker <dylan@pnwbakers.com>
D lang compilers have an option -release (or similar) which turns off
asserts, contracts, and other runtime type checking. This patch wires
that up to the b_ndebug flag.
Fixes#7082
has_function() tries to link an example program using the function
to see if it is available, but with clang on 64bit Windows this
example always already failed at the compile step:
error: cast from pointer to smaller type 'long' loses information
long b = (long) a;
This is due to long!=pointer with LLP64
Change from "long" to "long long" which is min 64bit and should always
fit a pointer. While "long long" is strictly a C99 feature every
non super ancient compiler should still support it.
The builtin check had a special case that if a header was provided and
the function wasn't defined, it would ignore the builtin to avoid
non-functional builtins (for example __builtin_posix_memalign in MSYS2).
GCC 10 gained support for __has_builtin() which now skipps this check
and because __has_builtin(__builtin_posix_memalign) returns true the
non functional builtin is now reported as available.
To get the old behaviour back move the special case in front of the actual
availability check.
Fixes#7113
A current rather untyped storage of options is one of the things that
contributes to the options code being so complex. This takes a small
step in synching down by storing the compiler options in dicts per
language.
Future work might be replacing the langauge strings with an enum, and
defaultdict with a custom struct, just like `PerMachine` and
`MachineChoice`.
When doing a compile test with a testfile.c, ccache fails since the path is random.
So it's better to disable it, to avoid reporting this as a cache miss.
If no exe_wrapper is set in the meson cross file the exe_wrapper
object will be an instance of EmptyExternalProgram.
So, found is True and prorgram is an empty list.
This will cause meson to tun the compiler sanity check because
it checks only for self.is_cross and self.exe_wrapper being
not None.
I ran into that situation while cross compiling for ia32 on a
x64_64 host. The host had no ia32 userspace installed, so the
self test failed.
As workaround I currently set exe_wrapper to 'true'.
Signed-off-by: Richard Weinberger <richard@nod.at>
Clang supports the GCC -Og flag, but --optimization=g is not setting that. This is because Clang is referencing the clike_optimization_args, which does not define a flag for 'g'.
To address this, we'll mimic the GNU options instead of the C-like ones.
Fixes#6619
This should have worked before, but the inheritance order was backwards,
so we got the DCompiler before the GnuCompiler, and the base Compiler
methods overrode the Gnu methods.
Dylan Baker
Tim-Philipp Müller
Nirbheek Chauhan
Marcel Hollerbach
Seungha Yang
Jussi Pakkanen
Peter Harris
Mike Gilbert
Michael Hirsch, Ph.D
Phillip Johnston
Drew Reed
georgev93
Yevhenii Kolesnikov
Eric Lemanissier
Ole André Vadla Ravnås
Christoph Reiter
Andrew Udvare
John Ericson
Pino Toscano
Andrei Alexeyev
Loïc Yhuel
John Ericson
Szabi Tolnai
alanNz
Richard Weinberger