[libc-commits] [libc] [libc] Support configurable errno modes (PR #98287)

[Petr Hosek via libc-commits]

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@@ -1,4 +1,9 @@
 {
+  "errno": {
+    "LIBC_CONF_ERRNO_MODE": {
+      "value": "LIBC_ERRNO_MODE_EXTERNAL"
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petrhosek wrote:

That's done in `libc_errno.cpp` since we don't have any mechanism to do this in `config.json`.

https://github.com/llvm/llvm-project/pull/98287