There are two variables that CMake takes into account during
find_package() in cross-compiled environments, which are: CMAKE_SYSROOT
and CMAKE_FIND_ROOT_PATH. Those are used in cmFindCommon::RerootPaths()
function, which blindly prepends all search paths with those specified
via CMAKE_SYSROOT and CMAKE_FIND_ROOT_PATH.
Extend search paths by using CMAKE_SYSROOT and CMAKE_FIND_ROOT_PATH in a
similar way as CMake does, so we successfully find CMake packages
information in cross-compiled environments.
Cmake ignores shared vs dynamic linking, and always returns static. This
went unnoticed, but results in regresssions for mesa. We need to fix
cmake, but with 0.51.1 due out shortly switching the order provides a
quick fix to restore expected functionality seems acceptable.
Fixes#5568
In some cases it may be necessary to set PKG_CONFIG_SYSROOT_DIR, like
when you've mounted a host architecture system in an arbitrary path.
Meson will now check the cross files for a [properties]:sys_root
variable and set the PKG_CONFIG_SYSROOT_DIR environment variable based
on that variable.
Fixes#3801Fixes#4057
In most cases instead pass `for_machine`, the name of the relevant
machines (what compilers target, what targets run on, etc). This allows
us to use the cross code path in the native case, deduplicating the
code.
As one can see, environment got bigger as more information is kept
structured there, while ninjabackend got a smaller. Overall a few amount
of lines were added, but the hope is what's added is a lot simpler than
what's removed.
this is better, but it's still not perfect. cmake doesn't return quotes
to us in the trace output, and being 100% the same as cmake is pretty
much impossible without that information. What I've done should be a
"good enough" implementation without having to maintain a copy of every
property allowed in cmake, as well as custom properties.
It turns out that llvm-config on windows can return such wonderful
output as `-LIBDIR:c:\\... c:\\abslute\\path\\to\\lib.lib`, which was
all fine and dandy when we were blindly passing it through, GCC/MinGW
ignored it and MSVC understood it meant `/LIBDIR:`; however, after we
added some code to validate linker arguments, and we have some code
before the validation that tries to remove posix style -L arguments,
resulting in IBDIR:..., which doesn't validate.
This patch fixes up the output of llvm-config so that -LIBDIR: is
replaced by the the link libdir argument of the compiler, via the
compiler/linker method for getting that.
Fixes#5419
Meson itself *almost* only cares about the build and host platforms. The
exception is it takes a `target_machine` in the cross file and exposes
it to the user; but it doesn't do anything else with it. It's therefore
overkill to put target in `PerMachine` and `MachineChoice`. Instead, we
make a `PerThreeMachine` only for the machine infos.
Additionally fix a few other things that were bugging me in the process:
- Get rid of `MachineInfos` class. Since `envconfig.py` was created, it
has no methods that couldn't just got on `PerMachine`
- Make `default_missing` and `miss_defaulting` work functionally. That
means we can just locally bind rather than bind as class vars the
"unfrozen" configuration. This helps prevent bugs where one forgets
to freeze a configuration.
Daniel Mensinger
Marcin Niestroj
Michael Hirsch, Ph.D
gjaeger1
Norbert Nemec
Dylan Baker
Jussi Pakkanen
Roman Shpuntov
Andrei Alexeyev
John Ericson
John Ericson
Luís Ferreira