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Diffstat (limited to 'docs/markdown/Release-notes-for-0.37.0.md')
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1 files changed, 62 insertions, 17 deletions
diff --git a/docs/markdown/Release-notes-for-0.37.0.md b/docs/markdown/Release-notes-for-0.37.0.md index 7e8aa54..930c1d1 100644 --- a/docs/markdown/Release-notes-for-0.37.0.md +++ b/docs/markdown/Release-notes-for-0.37.0.md @@ -7,7 +7,8 @@ short-description: Release notes for 0.37 ## Mesontest -Mesontest is a new testing tool that allows you to run your tests in many different ways. As an example you can run tests multiple times: +Mesontest is a new testing tool that allows you to run your tests in +many different ways. As an example you can run tests multiple times: mesontest --repeat=1000 a_test @@ -15,13 +16,17 @@ or with an arbitrary wrapper executable: mesontest --wrap='valgrind --tool=helgrind' a_test -or under `gdb`, 1000 times in a row. This is handy for tests that fail spuriously, as when the crash happens you are given the full GDB command line: +or under `gdb`, 1000 times in a row. This is handy for tests that fail +spuriously, as when the crash happens you are given the full GDB +command line: mesontest --repeat=1000 --gdb a_test ## Mesonrewriter -Mesonrewriter is an experimental tool to manipulate your build definitions programmatically. It is not installed by default yet but those interested can run it from the source repository. +Mesonrewriter is an experimental tool to manipulate your build +definitions programmatically. It is not installed by default yet but +those interested can run it from the source repository. As an example, here is how you would add a source file to a build target: @@ -29,7 +34,9 @@ As an example, here is how you would add a source file to a build target: ## Shared modules -The new `shared_module` function allows the creation of shared modules, that is, extension modules such as plugins that are meant to be used solely with `dlopen` rather than linking them to targets. +The new `shared_module` function allows the creation of shared +modules, that is, extension modules such as plugins that are meant to +be used solely with `dlopen` rather than linking them to targets. ## Gnome module @@ -56,21 +63,32 @@ The new `shared_module` function allows the creation of shared modules, that is, ## LLVM IR compilation -Meson has long had support for compiling assembler (GAS) files. In this release we add support for compiling LLVM IR files in a similar way when building with the Clang compiler. Just add it to the list of files when creating a `library` or `executable` target like any other source file. No special handling is required: +Meson has long had support for compiling assembler (GAS) files. In +this release we add support for compiling LLVM IR files in a similar +way when building with the Clang compiler. Just add it to the list of +files when creating a `library` or `executable` target like any other +source file. No special handling is required: ```meson executable('some-exe', 'main.c', 'asm-file.S', 'ir-file.ll') ``` -As always, you can also mix LLVM IR files with C++, C, and Assembly (GAS) sources. +As always, you can also mix LLVM IR files with C++, C, and Assembly +(GAS) sources. ## ViM indent and syntax files -We now include filetype, indent, and syntax files for ViM [with the source tree](https://github.com/mesonbuild/meson/tree/master/data/syntax-highlighting/vim). Please file issues (or pull requests!) for enhancements or if you face any problems using them. +We now include filetype, indent, and syntax files for ViM [with the +source +tree](https://github.com/mesonbuild/meson/tree/master/data/syntax-highlighting/vim). +Please file issues (or pull requests!) for enhancements or if you face +any problems using them. ## Push URLs in .wrap files -[.wrap files](Using-the-WrapDB.md) for subprojects can now include a separate push URL to allow developers to push changes directly from a subproject git checkout. +[.wrap files](Using-the-WrapDB.md) for subprojects can now include a +separate push URL to allow developers to push changes directly from a +subproject git checkout. ## pkg-config dependencies @@ -87,7 +105,8 @@ dependency('foolite', version : ['>=3.12.1', '!=3.13.99']) ## Overriding more binaries with environment variables -You can now specify the binary to be used for the following tools by setting the corresponding environment variable +You can now specify the binary to be used for the following tools by +setting the corresponding environment variable | Name | Environment variable | | ---- | -------------------- | @@ -97,11 +116,18 @@ You can now specify the binary to be used for the following tools by setting the ## Support for `localstatedir` -Similar to other options such as `bindir` and `datadir`, you can now specify the `localstatedir` for a project by passing `--localstatedir=dir` to `meson` or `-Dlocalstatedir=dir` to `mesonconf` after configuration. You can also access it from inside the `meson.build` file with `get_option('localstatedir')`. +Similar to other options such as `bindir` and `datadir`, you can now +specify the `localstatedir` for a project by passing +`--localstatedir=dir` to `meson` or `-Dlocalstatedir=dir` to +`mesonconf` after configuration. You can also access it from inside +the `meson.build` file with `get_option('localstatedir')`. ## New compiler function `symbols_have_underscore_prefix` -Checks if the compiler prefixes an underscore to C global symbols with the default calling convention. This is useful when linking to compiled assembly code, or other code that does not have its C symbol mangling handled transparently by the compiler. +Checks if the compiler prefixes an underscore to C global symbols with +the default calling convention. This is useful when linking to +compiled assembly code, or other code that does not have its C symbol +mangling handled transparently by the compiler. ```meson cc = meson.get_compiler('c') @@ -111,18 +137,37 @@ if cc.symbols_have_underscore_prefix() endif ``` -C symbol mangling is platform and architecture dependent, and a helper function is needed to detect it. For example, Windows 32-bit prefixes underscore, but 64-bit does not. Linux does not prefix an underscore but OS X does. +C symbol mangling is platform and architecture dependent, and a helper +function is needed to detect it. For example, Windows 32-bit prefixes +underscore, but 64-bit does not. Linux does not prefix an underscore +but OS X does. ## Vala -GLib Resources compiled with [`gnome.compile_resources`](Gnome-module.md#compile_resources) that are added to the sources of a Vala build target will now cause the appropriate `--gresources` flag to be passed to the Vala compiler so you don't need to add that yourself to `vala_args:`. +GLib Resources compiled with +[`gnome.compile_resources`](Gnome-module.md#compile_resources) that +are added to the sources of a Vala build target will now cause the +appropriate `--gresources` flag to be passed to the Vala compiler so +you don't need to add that yourself to `vala_args:`. ## Improvements to install scripts -You can now pass arguments to install scripts added with [`meson.add_install_script()`](Reference-manual.md#meson-object). All arguments after the script name will be passed to the script. - -The `MESON_INSTALL_DESTDIR_PREFIX` environment variable is now set when install scripts are called. This contains the values of the `DESTDIR` environment variable and the `prefix` option passed to Meson joined together. This is useful because both those are usually absolute paths, and joining absolute paths in a cross-platform way is tricky. [`os.path.join` in Python](https://docs.python.org/3/library/os.path.html#os.path.join) will discard all previous path segments when it encounters an absolute path, and simply concatenating them will not work on Windows where absolute paths begin with the drive letter. +You can now pass arguments to install scripts added with +[`meson.add_install_script()`](Reference-manual.md#meson-object). All +arguments after the script name will be passed to the script. + +The `MESON_INSTALL_DESTDIR_PREFIX` environment variable is now set +when install scripts are called. This contains the values of the +`DESTDIR` environment variable and the `prefix` option passed to Meson +joined together. This is useful because both those are usually +absolute paths, and joining absolute paths in a cross-platform way is +tricky. [`os.path.join` in +Python](https://docs.python.org/3/library/os.path.html#os.path.join) +will discard all previous path segments when it encounters an absolute +path, and simply concatenating them will not work on Windows where +absolute paths begin with the drive letter. ## More install directories -Added new options `sbindir` and `infodir` that can be used for installation. +Added new options `sbindir` and `infodir` that can be used for +installation. |