Merge pull request #6532 from jon-turney/languages-native-kwarg

Add add_languages(native:)

1 files changed, 20 insertions, 0 deletions

diff --git a/docs/markdown/snippets/native_compiler_not_required.md b/docs/markdown/snippets/native_compiler_not_required.md
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+## Native (build machine) compilers not always required
+
+`add_languages()` gained a `native:` keyword, indicating if a native or cross
+compiler is to be used.
+
+For the benefit of existing simple build definitions which don't contain any
+`native: true` targets, without breaking backwards compatibility for build
+definitions which assume that the native compiler is available after
+`add_languages()`, if the `native:` keyword is absent the languages may be used
+for either the build or host machine, but are never required for the build
+machine.
+
+This changes the behaviour of the following meson fragment (when cross-compiling
+but a native compiler is not available) from reporting an error at
+`add_language` to reporting an error at `executable`.
+
+```
+add_language('c')
+executable('main', 'main.c', native: true)
+```