Updates

peps/pep-0756.rst

@@ -11,14 +11,14 @@ Python-Version: 3.13
 Abstract
 ========
 
-:pep:`!755` summarized the problems with the CPython 3.12 build system.
+PEP 755 summarized the problems with the CPython 3.12 build system.
 This PEP suggests a new build system be implemented for CPython 3.13,
 
 
 Motivation
 ==========
 
-According to :pep:`!755`, the biggest pain with the CPython 3.12 build system,
+According to PEP 755, the biggest pain with the CPython 3.12 build system,
 is that consists of *two* hard-to-comprehend build systems:
 
 - The Windows build --- a collection of XML and BAT files
@@ -27,7 +27,7 @@ is that consists of *two* hard-to-comprehend build systems:
 Developers in the Windows camp find the GNU Autoconf code incomprehensible;
 developers in the \*nix camp find the XML files of the Windows build cryptic.
 
-Also according to :pep:`!755`,
+Also according to PEP 755,
 the number one goal for a future build system is a unified build system.
 
 
@@ -40,7 +40,7 @@ Rationale
 Specification
 =============
 
-A build system will be implemented with the goals of :pep:`!755` in mind:
+A build system will be implemented with the goals of PEP 755 in mind:
 
 - a unified build system that works on all :pep:`11` supported platforms
 - correct and fast incremental builds
@@ -51,11 +51,34 @@ A build system will be implemented with the goals of :pep:`!755` in mind:
 - an active community
 - being actively developed
 
+
+Implementation
+--------------
+
+In order to be able to decide which build system,
+we suggest implementing a proof-of-concept implementation of each contender.
+This proof-of-concept implementation should follow these specific guidelines,
+so that it will be possible to do a fair comparison:
+
+1. Compile and link the source files in :file:`Python/` into an object file.
+   This implies generating :file:`pyconfig.h` for macros needed in :file:`Python/`.
+2. Locate dependencies for and compile the ``_sqlite3`` extension module
+3. Add a target that regenerates Argument Clinic code
+
+The proof-of-concept implementation should work on the following platforms:
+
+- macOS (ARM)
+- Windows (32-bit)
+- Windows (64-bit)
+- Ubuntu 22.04
+- FreeBSD 14
+
+
 Contenders
-==========
+----------
 
 CMake
------
+^^^^^
 
 CMake is implemented in C++,
 and is being actively developed as an open source project by Kitware
@@ -64,7 +87,7 @@ It has been around since 2000, and is currently at release 3.27.7.
 
 
 Meson
------
+^^^^^
 
 Meson is implemented in Python,
 and is being actively developed as an open source project on GitHub
@@ -73,7 +96,7 @@ It has been around since 2013, and is currently at release 1.2.1.
 
 
 Bazel
------
+^^^^^
 
 Bazel is implemented in Java,
 and is being actively developed as an open source project on GitHub by Google
@@ -92,7 +115,7 @@ A bootstrapping guide will be written for the devguide in order to mitigate this
 Security Implications
 =====================
 
-*TODO*
+None known.
 
 
 How to Teach This