Linux build with Python 3.9

Hi all,

I wanted to replicate a test failure in the Meson build "Linux - 32 bit" of
my PR #17955. I tried to follow the steps in the following yml file (L335):

scipy/linux_meson.yml at main · scipy/scipy · GitHub
<https://github.com/scipy/scipy/blob/main/.github/workflows/linux_meson.yml>

So essentially I did the following:

- pull docker image and run it
- clone my repository
- run "python3.9 tools/openblas_support.py"
- copy the downloaded files to the indicated directories
- set PKG_CONFIG_PATH
- create venv and install packages

These steps worked fine. When I then run "python dev.py build", I get an
error:

scipy/meson.build:48:9: ERROR: Tried to form an absolute path to a dir in
the source tree. You should not do that but use relative paths instead, for
directories that are part of your project. [...]

The detailed output is at the end of the email. The last two lines in the
yml file are:

python dev.py build && \
LD_LIBRARY_PATH=/usr/local/lib python dev.py test

I first wanted to build scipy before running certain tests. I am not sure
if the error is related to not using LD_LIBRARY_PATH, I just ran "python
dev.py build".

I hope that someone can help. Thanks

Regards

Christoph

(test) [root@c73b212ff29a scipy]# python dev.py build
meson setup /home/scipy/build --prefix /home/scipy/build-install
The Meson build system
Version: 1.1.0
Source dir: /home/scipy
Build dir: /home/scipy/build
Build type: native build
Project name: SciPy
Project version: 1.11.0.dev0
C compiler for the host machine: cc (gcc 10.2.1 "cc (GCC) 10.2.1 20210130
(Red Hat 10.2.1-11)")
C linker for the host machine: cc ld.bfd 2.35-5
C++ compiler for the host machine: c++ (gcc 10.2.1 "c++ (GCC) 10.2.1
20210130 (Red Hat 10.2.1-11)")
C++ linker for the host machine: c++ ld.bfd 2.35-5
Cython compiler for the host machine: cython (cython 0.29.33)
Host machine cpu family: x86
Host machine cpu: i686
Compiler for C supports arguments -Wno-unused-but-set-variable: YES
Compiler for C supports arguments -Wno-unused-function: YES
Compiler for C supports arguments -Wno-conversion: YES
Compiler for C supports arguments -Wno-misleading-indentation: YES
Compiler for C supports arguments -Wno-incompatible-pointer-types: YES
Library m found: YES
Fortran compiler for the host machine: gfortran (gcc 10.2.1 "GNU Fortran
(GCC) 10.2.1 20210130 (Red Hat 10.2.1-11)")
Fortran linker for the host machine: gfortran ld.bfd 2.35-5
Compiler for Fortran supports arguments -Wno-conversion: YES
Checking if "-Wl,--version-script" : links: YES
Program cython found: YES (/home/scipy/test/bin/cython)
Program python3 found: YES (/home/scipy/test/bin/python)
Found pkg-config: /usr/bin/pkg-config (0.27.1)
Program pythran found: YES (/home/scipy/test/bin/pythran)
Run-time dependency threads found: YES

scipy/meson.build:48:9: ERROR: Tried to form an absolute path to a dir in
the source tree.
You should not do that but use relative paths instead, for
directories that are part of your project.

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