Re: Python recompile

On 05/03/2025 00:16, Lawrence D'Oliveiro wrote:

On Tue, 4 Mar 2025 18:16:25 +0000, bart wrote:
 

The CPython source bundle doesn't come with any makefiles. The first
step appears to be to run a 35,000-line 'configure' script. Part of its
job appears to be generate the necessary makefiles.

 This is the usual GNU Autotools thing. The source from which the configure
script is generated is configure.ac; you will see it makes heavy use of m4
macros.
 

On Windows, CPython must be built via MSVC, not gcc.
>
That involving installing VS20xx, a 6GB download, which itself first
needed a 4GB .NET update. Then I needed GIT. Then SVN. Then MSBUILD
tools. Then something else...
>
Whatever I fixed, it always found something else to fail on. After
several hours and a lot of downloads, I gave up.

 If only there were a Windows equivalent to “apt-get build-dep” ...

What does that do, just automatic all that crap that shouldn't be necessary in the first place? Including spending several minutes running through that configure script.
I maintain my own scripting language. Building it from source - on Windows - takes 70ms:
   c:\qx>tim mm qq
   Compiling qq.m to qq.exe
   Time: 0.069
The only tool needed is mm.exe: a 0.4MB compiler.
(TBF, my attempt to build CPython was on a much older, slower machine. On that one, my product took nearer 0.2 seconds to build from scratch.)