libunwind: Build C files with -fexceptions.

See: https://github.com/llvm/llvm-project/pull/121819

This fixes LTO for libunwind, so also re-enable support for that.

Closes #12828.
332add7a65Alex Rønne Petersen committed on 1/18/2025, 12:15:58 PMparentf38d7a9
1 file changedLine totals unavailable