Meson 1.0.0 was released on 23 December 2022
Compiler check functions
prefix kwargs accepts arrays
prefix kwarg that most compiler check functions support
now accepts an array in addition to a string. The elements of the
array will be concatenated separated by a newline.
This makes it more readable to write checks that need multiple headers to be included:
cc.check_header('GL/wglew.h', prefix : ['#include <windows.h>', '#include <GL/glew.h>'])
cc.check_header('GL/wglew.h', prefix : '#include <windows.h>\n#include <GL/glew.h>'])
Flags removed from cpp/objcpp warning level 1
-Wnon-virtual-dtor is no longer implied by
meson setup -Dwarning_level=1.
Developer environment improvements
When cross compiling, the developer environment now sets all environment
variables for the HOST machine. It now also sets
QEMU_LD_PREFIX to the
sys_root value from cross file if property is defined. That means that cross
compiled executables can often be run transparently on the build machine, for
example when cross compiling for aarch64 linux from x86_64 linux.
A new argument
--workdir has been added, by default it is set to build
directory. For example,
meson devenv -C builddir --workdir . can be used to
remain in the current dir (often source dir) instead.
--dump now prints shell commands like
using the literal
$FOO instead of current value of
FOO from environment.
This makes easier to evaluate those expressions in a different environment.
java.generate_native_headers, rename to
The functions operate in the exact same way. The new name matches more with Meson function name styling.
rust.bindgen accepts a dependency argument
bindgen method of the
rust module now accepts a dependencies argument.
Any include paths in these dependencies will be passed to the underlying call to
clang, and the call to
bindgen will correctly depend on any generated sources.
String arguments to the rust.bindgen include_directories argument
Most other cases of include_directories accept strings as well as
IncludeDirectory objects, so lets do that here too for consistency.
The Rust module is stable
Mesa is using the rust module in production, so it's time to mark it as stable.
in operator for strings
not in operators now works on strings, in addition to arrays and
fs = import('fs') if 'something' in fs.read('somefile') # True endif
everything value for the built-in
warning_level enables roughly all applicable compiler warnings.
For clang and MSVC, this simply enables
For GCC, meson enables warnings approximately equivalent to
-Weverything from clang.
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