[BRLTTY] Can't get brltty to build, was Re: Support multiple Python versions on Windows

[Leonard de Ruijter]

Hi all,


Unfortunately, I can't get brltty to build on my Windows system. Here is 
wat I do:


1. With mingw-get, install msys1 and mingw

2. Start msys1

3. Run the winsetup script

4. Run autogen

5. Run mkwin ..


Whatever I do, I get the following warnings:

mkwin: configuring build
../source/brltty-prologue.bash: line 287: declare: -A: invalid option
declare: usage: declare [-afFirtx] [-p] [name[=value] ...]
../source/brltty-prologue.bash: line 387: declare: -n: invalid option
declare: usage: declare [-afFirtx] [-p] [name[=value] ...]

And then with make, it instantly crashes with:

mkwin: building programs
../../source/Programs/brltty.c: In function 'setServiceState':
../../source/Programs/brltty.c:51:59: error: 
'ERROR_SERVICE_SPECIFIC_ERROR' undeclared (first use in this function)
      .dwWin32ExitCode = (exitStatus != PROG_EXIT_SUCCESS)? 
ERROR_SERVICE_SPECIFIC_ERROR: NO_ERROR,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../source/Programs/brltty.c:51:59: note: each undeclared identifier 
is reported only once for each function it appear
s in
../../source/Programs/brltty.c:51:89: error: 'NO_ERROR' undeclared 
(first use in this function)
      .dwWin32ExitCode = (exitStatus != PROG_EXIT_SUCCESS)? 
ERROR_SERVICE_SPECIFIC_ERROR: NO_ERROR,
^~~~~~~~
../../source/Programs/brltty.c: In function 'main':
../../source/Programs/brltty.c:198:27: error: 
'ERROR_FAILED_SERVICE_CONTROLLER_CONNECT' undeclared (first use in this fu
nction)
      if (GetLastError() != ERROR_FAILED_SERVICE_CONTROLLER_CONNECT) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
make[1]: *** [brltty.o] Error 1
make: *** [all] Error 2

I have GNU bash, version 3.1.23(1)-release (i686-pc-msys) and gcc.exe 
(MinGW.org GCC-6.3.0-1) 6.3.0. This stuff is all pretty old, so I'm 
pretty sure i'm doing something ridiculously wrong here.


Any help most appreciated!


Regards,

Leonard

On 28-9-2023 01:28, Samuel Thibault wrote:
> Samuel Thibault, le jeu. 28 sept. 2023 01:26:57 +0200, a ecrit:
>> Leonard de Ruijter, le mer. 27 sept. 2023 19:51:10 +0200, a ecrit:
>>> Python has something like the stable application binary Interface (ABI), see
>>> https://docs.python.org/3.11/c-api/stable.html . This can be used by
>>> enabling the limited API.
>>>
>>> I wonder, has this ever been considered? If not, could it be considered to
>>> create a brlapi python package that uses the limited API, preferably using
>>> an API version that is equal to the minimum Python version that is still in
>>> maintenance (currently 3.8)? That would ensure that you'd be able to use a
>>> brlapi python extension with multiple python versions.
>> Apparently cython3 introduced some support for it, so it will be worth
>> trying it indeed.
> (namely: CYTHON_LIMITED_API, that makes cython use the stable ABI)
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