28 lines
753 B
Markdown
28 lines
753 B
Markdown
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## Add support for thin LTO
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The `b_lto` option has been updated and now can be set to the value
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`thin`. This enables [thin
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LTO](https://clang.llvm.org/docs/ThinLTO.html) on all compilers where
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it is supported. At the time of writing this means only Clang.
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This change is potentially backwards incompatible. If you have
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examined the value of `b_lto` in your build file, note that its type
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has changed from a boolean to a string. Thus comparisons like this:
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```meson
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if get_option('b_lto')
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...
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endif
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```
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need to be changed to something like this instead:
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```meson
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if get_option('b_lto') == 'true'
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...
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endif
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```
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This should not affect any comman line invocations as configuring LTO
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with `-Db_lto=true` still works and behaves the same way as before.
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