Compilation of v3.9.0b1 fails on macOS

[bradenmitchell]

Followed the instructions in the CPython Internals book explicitly and unable to compile v3.9.0b1. Unable to continue with the book...

Steps & output as follows:

1. Cloned repo and checkout version stated in book

> git clone [email protected]:python/cpython
> cd cpython
> git checkout tags/v3.9.0b1 -b v3.9.0b1
Updating files: 100% (4849/4849), done.
Switched to a new branch 'v3.9.0b1'

2. Check Xcode command line tools installed

> xcode-select --install
xcode-select: error: command line tools are already installed, use "Software Update" in System Settings to install updates

> softwareupdate --history | grep Xcode
Command Line Tools for Xcode                       15.1       08/01/2024, 12:51:10

> clang --version
Apple clang version 15.0.0 (clang-1500.1.0.2.5)
Target: x86_64-apple-darwin22.6.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

3. Check Homebrew installed

> brew --version
Homebrew 4.2.17

4. Install dependencies via homebrew

> brew install openssl xz zlib gdbm sqlite
Warning: openssl@3 3.2.1 is already installed and up-to-date.
Warning: xz 5.4.6 is already installed and up-to-date.
Warning: zlib 1.3.1 is already installed and up-to-date.
Warning: gdbm 1.23 is already installed and up-to-date.
Warning: sqlite 3.45.2 is already installed and up-to-date.

5. Run config script with homebrew zlib

> CPPFLAGS="-I$(brew --prefix zlib)/include" \
  LDFLAGS="-L$(brew --prefix zlib)/lib" \
  ./configure --with-openssl=$(brew --prefix openssl) --with-pydebug

##### I've truncated some output, see below #####

configure: creating ./config.status
config.status: creating Makefile.pre
config.status: creating Misc/python.pc
config.status: creating Misc/python-embed.pc
config.status: creating Misc/python-config.sh
config.status: creating Modules/ld_so_aix
config.status: creating pyconfig.h
creating Modules/Setup.local
creating Makefile

I've truncated the output from config script. See this gist for full output.

6. Check Makefile, etc. created

> ls -l
total 4272
-rw-r--r--@   1 Braden  staff     630 16 Apr 11:51 CODE_OF_CONDUCT.md
drwxr-xr-x@  31 Braden  staff     992 16 Apr 11:51 Doc
drwxr-xr-x@   5 Braden  staff     160 16 Apr 11:51 Grammar
drwxr-xr-x@ 103 Braden  staff    3296 16 Apr 11:51 Include
-rw-r--r--@   1 Braden  staff   12775 16 Apr 11:51 LICENSE
drwxr-xr-x@ 205 Braden  staff    6560 16 Apr 11:51 Lib
drwxr-xr-x@  11 Braden  staff     352 16 Apr 11:51 Mac
-rw-r--r--@   1 Braden  staff   79698 16 Apr 12:04 Makefile
-rw-r--r--@   1 Braden  staff   70340 16 Apr 12:04 Makefile.pre
-rw-r--r--@   1 Braden  staff   70063 16 Apr 11:51 Makefile.pre.in
drwxr-xr-x@  29 Braden  staff     928 16 Apr 12:04 Misc
drwxr-xr-x@ 134 Braden  staff    4288 16 Apr 12:04 Modules
drwxr-xr-x@  55 Braden  staff    1760 16 Apr 11:51 Objects
drwxr-xr-x@  45 Braden  staff    1440 16 Apr 11:51 PC
drwxr-xr-x@ 117 Braden  staff    3744 16 Apr 11:51 PCbuild
drwxr-xr-x@  18 Braden  staff     576 16 Apr 11:51 Parser
drwxr-xr-x@   6 Braden  staff     192 16 Apr 11:51 Programs
drwxr-xr-x@  79 Braden  staff    2528 16 Apr 11:51 Python
-rw-r--r--@   1 Braden  staff   10173 16 Apr 11:51 README.rst
drwxr-xr-x@  24 Braden  staff     768 16 Apr 11:51 Tools
-rw-r--r--@   1 Braden  staff   13421 16 Apr 11:51 aclocal.m4
-rwxr-xr-x@   1 Braden  staff   44166 16 Apr 11:51 config.guess
-rw-r--r--@   1 Braden  staff  852221 16 Apr 12:04 config.log
-rwxr-xr-x@   1 Braden  staff   42210 16 Apr 12:04 config.status
-rwxr-xr-x@   1 Braden  staff   36251 16 Apr 11:51 config.sub
-rwxr-xr-x@   1 Braden  staff  512111 16 Apr 11:51 configure
-rw-r--r--@   1 Braden  staff  172981 16 Apr 11:51 configure.ac
-rwxr-xr-x@   1 Braden  staff   15368 16 Apr 11:51 install-sh
drwxr-xr-x@   4 Braden  staff     128 16 Apr 11:51 m4
-rw-r--r--@   1 Braden  staff      82 16 Apr 11:51 netlify.toml
-rw-r--r--@   1 Braden  staff   47822 16 Apr 12:04 pyconfig.h
-rw-r--r--@   1 Braden  staff   45557 16 Apr 11:51 pyconfig.h.in
-rw-r--r--@   1 Braden  staff  111118 16 Apr 11:51 setup.py

7. Compile

> make -j2 -s
Objects/fileobject.c:245:9: warning: variable 'newlinetypes' set but not used [-Wunused-but-set-variable]
    int newlinetypes = 0;
        ^
1 warning generated.
Objects/dictobject.c:2235:16: warning: variable 'i' set but not used [-Wunused-but-set-variable]
    Py_ssize_t i, j;
               ^
1 warning generated.
Objects/obmalloc.c:2639:14: warning: variable 'j' set but not used [-Wunused-but-set-variable]
        uint j;
             ^
1 warning generated.
./Modules/getpath.c:942:40: warning: incompatible pointer types passing 'unsigned long *' to parameter of type 'uint32_t *' (aka 'unsigned int *') [-Wincompatible-pointer-types]
    if (_NSGetExecutablePath(execpath, &nsexeclength) != 0
                                       ^~~~~~~~~~~~~
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/mach-o/dyld.h:105:54: note: passing argument to parameter 'bufsize' here
extern int _NSGetExecutablePath(char* buf, uint32_t* bufsize)                 __OSX_AVAILABLE_STARTING(__MAC_10_2, __IPHONE_2_0);
                                                     ^
1 warning generated.
./Modules/posixmodule.c:9403:15: error: call to undeclared function 'sendfile'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
        ret = sendfile(in_fd, out_fd, offset, &sbytes, &sf, flags);
              ^
1 error generated.
make: *** [Modules/posixmodule.o] Error 1
make: *** Waiting for unfinished jobs....

7. Cannot proceed any further due to the -Wimplicit-function-declaration error.