diff options
Diffstat (limited to 'docs/markdown/snippets')
| -rw-r--r-- | docs/markdown/snippets/cstd.md | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/docs/markdown/snippets/cstd.md b/docs/markdown/snippets/cstd.md new file mode 100644 index 0000000..cc1f083 --- /dev/null +++ b/docs/markdown/snippets/cstd.md @@ -0,0 +1,18 @@ +## `c_std` and `cpp_std` options now accepts a list of values + +Projects that prefer GNU C, but can fallback to ISO C, can now set, for +example, `default_options: 'c_std=gnu11,c11'`, and it will use `gnu11` when +available, but fallback to `c11` otherwise. It is an error only if none of the +values are supported by the current compiler. + +Likewise, a project that can take benefit of `c++17` but can still build with +`c++11` can set `default_options: 'cpp_std=c++17,c++11'`. + +This allows us to deprecate `gnuXX` values from the MSVC compiler. That means +that `default_options: 'c_std=gnu11'` will now print a warning with MSVC +but fallback to `c11`. No warning is printed if at least one +of the values is valid, i.e. `default_options: 'c_std=gnu11,c11'`. + +In the future that deprecation warning will become an hard error because +`c_std=gnu11` should mean GNU is required, for projects that cannot be +built with MSVC for example. |