bug#34272: 26.1.91 M-x flyspell-mode

[Eli Zaretskii]

> Date: Sat, 02 Feb 2019 08:03:32 +0900 (JST)
> Cc: homeros.misasa@gmail.com, 34272@debbugs.gnu.org,
>  tkk@misasa.okayama-u.ac.jp
> From: Tak Kunihiro <tkk@misasa.okayama-u.ac.jp>
> 
> >> M-x flyspell-mode
> >>   Error enabling Flyspell mode:
> >>    (stringp nil)
> > 
> > Please show the output of the following 2 commands from the Windows
> > cmd shell's prompt:
> > 
> >   c:\msys64\mingw64\bin\hunspell.exe -D nul
> >   c:\msys64\mingw64\bin\hunspell.exe -D
> 
> Following is the output from hunspell.exe -D nul and hunspell.exe -D.
> I hope this helps.
> 
> 
> CMD> c:\msys64\mingw64\bin\hunspell.exe -D nul
> SEARCH PATH:
> .;c:/msys64/mingw64/bin/;c:/msys64/mingw64/share/hunspell;c:/msys64/mingw64/share/myspell;c:/msys64/mingw64/share/myspell/dicts;c:/msys64;%USERPROFILE%/Application
>  Data/OpenOffice.org 2/user/wordbook;c:/msys64/mingw64/share/dict/ooo;
> AVAILABLE DICTIONARIES (path is not mandatory for -d option):
> c:/msys64/mingw64/share/hunspell/en_AG
> c:/msys64/mingw64/share/hunspell/en_AU
> c:/msys64/mingw64/share/hunspell/en_BS
> c:/msys64/mingw64/share/hunspell/en_BW
> c:/msys64/mingw64/share/hunspell/en_BZ
> c:/msys64/mingw64/share/hunspell/en_CA
> c:/msys64/mingw64/share/hunspell/en_DK
> c:/msys64/mingw64/share/hunspell/en_GB
> c:/msys64/mingw64/share/hunspell/en_GH
> c:/msys64/mingw64/share/hunspell/en_HK
> c:/msys64/mingw64/share/hunspell/en_IE
> c:/msys64/mingw64/share/hunspell/en_IN
> c:/msys64/mingw64/share/hunspell/en_JM
> c:/msys64/mingw64/share/hunspell/en_NA
> c:/msys64/mingw64/share/hunspell/en_NG
> c:/msys64/mingw64/share/hunspell/en_NZ
> c:/msys64/mingw64/share/hunspell/en_PH
> c:/msys64/mingw64/share/hunspell/en_SG
> c:/msys64/mingw64/share/hunspell/en_TT
> c:/msys64/mingw64/share/hunspell/en_US
> c:/msys64/mingw64/share/hunspell/en_ZA
> c:/msys64/mingw64/share/hunspell/en_ZW
> c:/msys64/mingw64/share/myspell/dicts/en_AG
> c:/msys64/mingw64/share/myspell/dicts/en_AU
> c:/msys64/mingw64/share/myspell/dicts/en_BS
> c:/msys64/mingw64/share/myspell/dicts/en_BW
> c:/msys64/mingw64/share/myspell/dicts/en_BZ
> c:/msys64/mingw64/share/myspell/dicts/en_CA
> c:/msys64/mingw64/share/myspell/dicts/en_DK
> c:/msys64/mingw64/share/myspell/dicts/en_GB
> c:/msys64/mingw64/share/myspell/dicts/en_GH
> c:/msys64/mingw64/share/myspell/dicts/en_HK
> c:/msys64/mingw64/share/myspell/dicts/en_IE
> c:/msys64/mingw64/share/myspell/dicts/en_IN
> c:/msys64/mingw64/share/myspell/dicts/en_JM
> c:/msys64/mingw64/share/myspell/dicts/en_NA
> c:/msys64/mingw64/share/myspell/dicts/en_NG
> c:/msys64/mingw64/share/myspell/dicts/en_NZ
> c:/msys64/mingw64/share/myspell/dicts/en_PH
> c:/msys64/mingw64/share/myspell/dicts/en_SG
> c:/msys64/mingw64/share/myspell/dicts/en_TT
> c:/msys64/mingw64/share/myspell/dicts/en_US
> c:/msys64/mingw64/share/myspell/dicts/en_ZA
> c:/msys64/mingw64/share/myspell/dicts/en_ZW
> LOADED DICTIONARY:
> c:/msys64/mingw64/share/hunspell/en_US.aff
> c:/msys64/mingw64/share/hunspell/en_US.dic
> Can't create tempfile: Permission denied  <<<<<<<<<<<<<<<<<<<<

The last line could be the source of the problem, but I still don't
understand why it happens (are you running in a directory where you
cannot create files?), nor why that would prevent Flyspell from
working.  Please step with Edebug through
ispell-find-hunspell-dictionaries (it is called once, when Flyspell is
activated), and tell what you see there.  It is supposed to find this
line in the output:

  c:/msys64/mingw64/share/hunspell/en_US.aff

and then call ispell-parse-hunspell-affix-file with the name of that
dictionary.