./srcpkg build ghc fails with current tools:
"inplace/bin/ghc-stage1" [...] /build/cbits/longlong.p_o
Running Sphinx v4.0.2
Configuration error:
There is a syntax error in your configuration file: (unicode error) 'unicodeescape' codec can't decode bytes in position 1-2: truncated \uXXXX escape (conf.py, line 87)
...
make: *** [Makefile:128: all] Error 2
According to https://gitlab.haskell.org/ghc/ghc/-/issues/19962
>> This fix is to use raw strings, as already done in master:
>> https://gitlab.haskell.org/ghc/ghc/-/blob/master/docs/users_guide/conf.py#L96
Sanitized from commit (only small parts apply)
83407ffc7a
c74ff7e542