Cannot build 10.9.beta9

Andrew

unread,

Apr 13, 2026, 12:33:27 AM (3 days ago) Apr 13

to sage-devel

I gave up trying to compile 10.9.beta8. When 10.9.beta9 came out I switched to using mamba. Since it is available, I first tried using:

mamba env create --file environment-3.14-macos.yml --name sage-dev
mamba activate sage-dev
pip install --no-build-isolation --editable .

but this did not compile. I thought that I'd read somewhere that there were issues using pytnon 3.14 on macosx, so I then tried:

mamba env create --file environment-3.13-macos.yml --name sage-dev
mamba activate sage-dev
pip install --no-build-isolation --editable .

This also failed. So then I tried using python 3.12:

mamba env create --file environment-3.12-macos.yml --name sage-dev
mamba activate sage-dev
pip install --no-build-isolation --editable .

This also does not build (output below). Between each of these attempts, following https://doc.sagemath.org/html/en/installation/source.html#section-build-source I tried:

rm src/**/*.so
find src/sage/ext/interpreters -type f ! -name 'meson.build' -delete
pip uninstall sage-conf sage-setup sagemath-standard

but this didn't help. Just for fun I also deleted ~/.local/share/mamba

--- end of log when building with environment-3.12-macos.yml
Configuring kernel.json using configuration
Configuring config.py using configuration
../../src/sage/meson.build:178: WARNING: The variable(s) 'FOURTITWO_CIRCUITS', 'FOURTITWO_GRAVER', 'FOURTITWO_GROEBNER', 'FOURTITWO_HILBERT', 'FOURTITWO_MARKOV', 'FOURTITWO_PPI', 'FOURTITWO_QSOLVE', 'FOURTITWO_RAYS', 'FOURTITWO_ZSOLVE', 'SAGE_MATHJAX_DIR' in the input file 'src/sage/config.py.in' are not present in the given configuration data.
Build targets in project: 574

SageMath 10.9.beta9

User defined options
Native files : /usr/local/src/sage/build/cp312/meson-python-native-file.ini
b_ndebug : if-release
b_vscrt : md
build-docs : False
buildtype : release
default_library: static

Found ninja-1.13.2 at /Users/andrew/.local/share/mamba/envs/sage-dev/bin/ninja

Generating targets: 0%| | 0/574 eta ?
Generating targets: 2%|▏ | 9/574 eta 00:23
Generating targets: 2%|▏ | 12/574 eta 00:22
Generating targets: 27%|██▋ | 156/574 eta 00:01
Generating targets: 65%|██████▍ | 371/574 eta 00:00

Writing build.ninja: 0%| | 0/2380 eta ?

Cleaning... 0 files.
+ /Users/andrew/.local/share/mamba/envs/sage-dev/bin/ninja
[1/1216] Compiling C object src/sage/libs/libecm.cpython-312-darwin.so.p/meson-generated_src_sage_libs_libecm.pyx.c.o
FAILED: [code=1] src/sage/libs/libecm.cpython-312-darwin.so.p/meson-generated_src_sage_libs_libecm.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/libs/libecm.cpython-312-darwin.so.p -Isrc/sage/libs -I../../src/sage/libs -Isrc/sage/cpython -I../../src/sage/cpython -Isrc/sage/rings -I../../src/sage/rings -I../../../../../../Users/andrew/.local/share/mamba/envs/sage-dev/lib/python3.12/site-packages/cysignals -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/libs/libecm.cpython-312-darwin.so.p/meson-generated_src_sage_libs_libecm.pyx.c.o -MF src/sage/libs/libecm.cpython-312-darwin.so.p/meson-generated_src_sage_libs_libecm.pyx.c.o.d -o src/sage/libs/libecm.cpython-312-darwin.so.p/meson-generated_src_sage_libs_libecm.pyx.c.o -c src/sage/libs/libecm.cpython-312-darwin.so.p/src/sage/libs/libecm.pyx.c
src/sage/libs/libecm.cpython-312-darwin.so.p/src/sage/libs/libecm.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[2/1216] Compiling C object src/sage/cpython/dict_del_by_value.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_dict_del_by_value.pyx.c.o
FAILED: [code=1] src/sage/cpython/dict_del_by_value.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_dict_del_by_value.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/cpython/dict_del_by_value.cpython-312-darwin.so.p -Isrc/sage/cpython -I../../src/sage/cpython -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/cpython/dict_del_by_value.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_dict_del_by_value.pyx.c.o -MF src/sage/cpython/dict_del_by_value.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_dict_del_by_value.pyx.c.o.d -o src/sage/cpython/dict_del_by_value.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_dict_del_by_value.pyx.c.o -c src/sage/cpython/dict_del_by_value.cpython-312-darwin.so.p/src/sage/cpython/dict_del_by_value.pyx.c
src/sage/cpython/dict_del_by_value.cpython-312-darwin.so.p/src/sage/cpython/dict_del_by_value.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[3/1216] Compiling C object src/sage/cpython/debug.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_debug.pyx.c.o
FAILED: [code=1] src/sage/cpython/debug.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_debug.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/cpython/debug.cpython-312-darwin.so.p -Isrc/sage/cpython -I../../src/sage/cpython -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/cpython/debug.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_debug.pyx.c.o -MF src/sage/cpython/debug.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_debug.pyx.c.o.d -o src/sage/cpython/debug.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_debug.pyx.c.o -c src/sage/cpython/debug.cpython-312-darwin.so.p/src/sage/cpython/debug.pyx.c
src/sage/cpython/debug.cpython-312-darwin.so.p/src/sage/cpython/debug.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[4/1216] Compiling C object src/sage/cpython/atexit.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_atexit.pyx.c.o
FAILED: [code=1] src/sage/cpython/atexit.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_atexit.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/cpython/atexit.cpython-312-darwin.so.p -Isrc/sage/cpython -I../../src/sage/cpython -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/cpython/atexit.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_atexit.pyx.c.o -MF src/sage/cpython/atexit.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_atexit.pyx.c.o.d -o src/sage/cpython/atexit.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_atexit.pyx.c.o -c src/sage/cpython/atexit.cpython-312-darwin.so.p/src/sage/cpython/atexit.pyx.c
src/sage/cpython/atexit.cpython-312-darwin.so.p/src/sage/cpython/atexit.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[5/1216] Compiling C object src/sage/cpython/builtin_types.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_builtin_types.pyx.c.o
FAILED: [code=1] src/sage/cpython/builtin_types.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_builtin_types.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/cpython/builtin_types.cpython-312-darwin.so.p -Isrc/sage/cpython -I../../src/sage/cpython -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/cpython/builtin_types.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_builtin_types.pyx.c.o -MF src/sage/cpython/builtin_types.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_builtin_types.pyx.c.o.d -o src/sage/cpython/builtin_types.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_builtin_types.pyx.c.o -c src/sage/cpython/builtin_types.cpython-312-darwin.so.p/src/sage/cpython/builtin_types.pyx.c
src/sage/cpython/builtin_types.cpython-312-darwin.so.p/src/sage/cpython/builtin_types.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[6/1216] Compiling C++ object src/sage/libs/braiding.cpython-312-darwin.so.p/meson-generated_src_sage_libs_braiding.pyx.cpp.o
FAILED: [code=1] src/sage/libs/braiding.cpython-312-darwin.so.p/meson-generated_src_sage_libs_braiding.pyx.cpp.o
arm64-apple-darwin20.0.0-clang++ -Isrc/sage/libs/braiding.cpython-312-darwin.so.p -Isrc/sage/libs -I../../src/sage/libs -Isrc/sage/cpython -I../../src/sage/cpython -Isrc/sage/rings -I../../src/sage/rings -I../../../../../../Users/andrew/.local/share/mamba/envs/sage-dev/lib/python3.12/site-packages/cysignals -I/opt/homebrew/include/python3.12 -I/Users/andrew/.local/share/mamba/envs/sage-dev/include -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fvisibility-inlines-hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c++17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -stdlib=libc++ -fvisibility-inlines-hidden -fmessage-length=0 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/libs/braiding.cpython-312-darwin.so.p/meson-generated_src_sage_libs_braiding.pyx.cpp.o -MF src/sage/libs/braiding.cpython-312-darwin.so.p/meson-generated_src_sage_libs_braiding.pyx.cpp.o.d -o src/sage/libs/braiding.cpython-312-darwin.so.p/meson-generated_src_sage_libs_braiding.pyx.cpp.o -c src/sage/libs/braiding.cpython-312-darwin.so.p/src/sage/libs/braiding.pyx.cpp
src/sage/libs/braiding.cpython-312-darwin.so.p/src/sage/libs/braiding.pyx.cpp:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[7/1216] Compiling C object src/sage/libs/homfly.cpython-312-darwin.so.p/meson-generated_src_sage_libs_homfly.pyx.c.o
FAILED: [code=1] src/sage/libs/homfly.cpython-312-darwin.so.p/meson-generated_src_sage_libs_homfly.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/libs/homfly.cpython-312-darwin.so.p -Isrc/sage/libs -I../../src/sage/libs -Isrc/sage/cpython -I../../src/sage/cpython -Isrc/sage/rings -I../../src/sage/rings -I../../../../../../Users/andrew/.local/share/mamba/envs/sage-dev/lib/python3.12/site-packages/cysignals -I/opt/homebrew/include/python3.12 -I/Users/andrew/.local/share/mamba/envs/sage-dev/include -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/libs/homfly.cpython-312-darwin.so.p/meson-generated_src_sage_libs_homfly.pyx.c.o -MF src/sage/libs/homfly.cpython-312-darwin.so.p/meson-generated_src_sage_libs_homfly.pyx.c.o.d -o src/sage/libs/homfly.cpython-312-darwin.so.p/meson-generated_src_sage_libs_homfly.pyx.c.o -c src/sage/libs/homfly.cpython-312-darwin.so.p/src/sage/libs/homfly.pyx.c
src/sage/libs/homfly.cpython-312-darwin.so.p/src/sage/libs/homfly.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[8/1216] Compiling C++ object src/sage/libs/eclib/homspace.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_homspace.pyx.cpp.o
FAILED: [code=1] src/sage/libs/eclib/homspace.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_homspace.pyx.cpp.o
arm64-apple-darwin20.0.0-clang++ -Isrc/sage/libs/eclib/homspace.cpython-312-darwin.so.p -Isrc/sage/libs/eclib -I../../src/sage/libs/eclib -Isrc/sage/cpython -I../../src/sage/cpython -Isrc/sage/ext -I../../src/sage/ext -Isrc/sage/libs/flint -I../../src/sage/libs/flint -Isrc/sage/libs/ntl -I../../src/sage/libs/ntl -Isrc/sage/rings -I../../src/sage/rings -I../../../../../../Users/andrew/.local/share/mamba/envs/sage-dev/lib/python3.12/site-packages/cysignals -I/opt/homebrew/include/python3.12 -I/Users/andrew/.local/share/mamba/envs/sage-dev/include -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fvisibility-inlines-hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c++17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -stdlib=libc++ -fvisibility-inlines-hidden -fmessage-length=0 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/libs/eclib/homspace.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_homspace.pyx.cpp.o -MF src/sage/libs/eclib/homspace.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_homspace.pyx.cpp.o.d -o src/sage/libs/eclib/homspace.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_homspace.pyx.cpp.o -c src/sage/libs/eclib/homspace.cpython-312-darwin.so.p/src/sage/libs/eclib/homspace.pyx.cpp
src/sage/libs/eclib/homspace.cpython-312-darwin.so.p/src/sage/libs/eclib/homspace.pyx.cpp:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[9/1216] Compiling C++ object src/sage/libs/eclib/mat.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_mat.pyx.cpp.o
FAILED: [code=1] src/sage/libs/eclib/mat.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_mat.pyx.cpp.o
arm64-apple-darwin20.0.0-clang++ -Isrc/sage/libs/eclib/mat.cpython-312-darwin.so.p -Isrc/sage/libs/eclib -I../../src/sage/libs/eclib -Isrc/sage/cpython -I../../src/sage/cpython -Isrc/sage/ext -I../../src/sage/ext -Isrc/sage/libs/flint -I../../src/sage/libs/flint -Isrc/sage/libs/ntl -I../../src/sage/libs/ntl -Isrc/sage/rings -I../../src/sage/rings -I../../../../../../Users/andrew/.local/share/mamba/envs/sage-dev/lib/python3.12/site-packages/cysignals -I/opt/homebrew/include/python3.12 -I/Users/andrew/.local/share/mamba/envs/sage-dev/include -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fvisibility-inlines-hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c++17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -stdlib=libc++ -fvisibility-inlines-hidden -fmessage-length=0 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/libs/eclib/mat.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_mat.pyx.cpp.o -MF src/sage/libs/eclib/mat.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_mat.pyx.cpp.o.d -o src/sage/libs/eclib/mat.cpython-312-darwin.so.p/meson-generated_src_sage_libs_eclib_mat.pyx.cpp.o -c src/sage/libs/eclib/mat.cpython-312-darwin.so.p/src/sage/libs/eclib/mat.pyx.cpp
src/sage/libs/eclib/mat.cpython-312-darwin.so.p/src/sage/libs/eclib/mat.pyx.cpp:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[10/1216] Compiling C object src/sage/cpython/type.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_type.pyx.c.o
FAILED: [code=1] src/sage/cpython/type.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_type.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/cpython/type.cpython-312-darwin.so.p -Isrc/sage/cpython -I../../src/sage/cpython -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/cpython/type.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_type.pyx.c.o -MF src/sage/cpython/type.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_type.pyx.c.o.d -o src/sage/cpython/type.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_type.pyx.c.o -c src/sage/cpython/type.cpython-312-darwin.so.p/src/sage/cpython/type.pyx.c
src/sage/cpython/type.cpython-312-darwin.so.p/src/sage/cpython/type.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[11/1216] Compiling C object src/sage/libs/ecl.cpython-312-darwin.so.p/meson-generated_src_sage_libs_ecl.pyx.c.o
FAILED: [code=1] src/sage/libs/ecl.cpython-312-darwin.so.p/meson-generated_src_sage_libs_ecl.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/libs/ecl.cpython-312-darwin.so.p -Isrc/sage/libs -I../../src/sage/libs -Isrc/sage/cpython -I../../src/sage/cpython -Isrc/sage/rings -I../../src/sage/rings -I../../../../../../Users/andrew/.local/share/mamba/envs/sage-dev/lib/python3.12/site-packages/cysignals -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/libs/ecl.cpython-312-darwin.so.p/meson-generated_src_sage_libs_ecl.pyx.c.o -MF src/sage/libs/ecl.cpython-312-darwin.so.p/meson-generated_src_sage_libs_ecl.pyx.c.o.d -o src/sage/libs/ecl.cpython-312-darwin.so.p/meson-generated_src_sage_libs_ecl.pyx.c.o -c src/sage/libs/ecl.cpython-312-darwin.so.p/src/sage/libs/ecl.pyx.c
src/sage/libs/ecl.cpython-312-darwin.so.p/src/sage/libs/ecl.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[12/1216] Compiling C object src/sage/cpython/getattr.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_getattr.pyx.c.o
FAILED: [code=1] src/sage/cpython/getattr.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_getattr.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/cpython/getattr.cpython-312-darwin.so.p -Isrc/sage/cpython -I../../src/sage/cpython -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/cpython/getattr.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_getattr.pyx.c.o -MF src/sage/cpython/getattr.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_getattr.pyx.c.o.d -o src/sage/cpython/getattr.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_getattr.pyx.c.o -c src/sage/cpython/getattr.cpython-312-darwin.so.p/src/sage/cpython/getattr.pyx.c
src/sage/cpython/getattr.cpython-312-darwin.so.p/src/sage/cpython/getattr.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[13/1216] Compiling C object src/sage/cpython/cython_metaclass.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_cython_metaclass.pyx.c.o
FAILED: [code=1] src/sage/cpython/cython_metaclass.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_cython_metaclass.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/cpython/cython_metaclass.cpython-312-darwin.so.p -Isrc/sage/cpython -I../../src/sage/cpython -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/cpython/cython_metaclass.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_cython_metaclass.pyx.c.o -MF src/sage/cpython/cython_metaclass.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_cython_metaclass.pyx.c.o.d -o src/sage/cpython/cython_metaclass.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_cython_metaclass.pyx.c.o -c src/sage/cpython/cython_metaclass.cpython-312-darwin.so.p/src/sage/cpython/cython_metaclass.pyx.c
src/sage/cpython/cython_metaclass.cpython-312-darwin.so.p/src/sage/cpython/cython_metaclass.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[14/1216] Compiling C++ object src/sage/libs/sirocco.cpython-312-darwin.so.p/meson-generated_src_sage_libs_sirocco.pyx.cpp.o
FAILED: [code=1] src/sage/libs/sirocco.cpython-312-darwin.so.p/meson-generated_src_sage_libs_sirocco.pyx.cpp.o
arm64-apple-darwin20.0.0-clang++ -Isrc/sage/libs/sirocco.cpython-312-darwin.so.p -Isrc/sage/libs -I../../src/sage/libs -Isrc/sage/cpython -I../../src/sage/cpython -Isrc/sage/rings -I../../src/sage/rings -I../../../../../../Users/andrew/.local/share/mamba/envs/sage-dev/lib/python3.12/site-packages/cysignals -I/opt/homebrew/include/python3.12 -I/Users/andrew/.local/share/mamba/envs/sage-dev/include -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fvisibility-inlines-hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c++17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -stdlib=libc++ -fvisibility-inlines-hidden -fmessage-length=0 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/libs/sirocco.cpython-312-darwin.so.p/meson-generated_src_sage_libs_sirocco.pyx.cpp.o -MF src/sage/libs/sirocco.cpython-312-darwin.so.p/meson-generated_src_sage_libs_sirocco.pyx.cpp.o.d -o src/sage/libs/sirocco.cpython-312-darwin.so.p/meson-generated_src_sage_libs_sirocco.pyx.cpp.o -c src/sage/libs/sirocco.cpython-312-darwin.so.p/src/sage/libs/sirocco.pyx.cpp
src/sage/libs/sirocco.cpython-312-darwin.so.p/src/sage/libs/sirocco.pyx.cpp:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[15/1216] Compiling C object src/sage/libs/arb/arith.cpython-312-darwin.so.p/meson-generated_src_sage_libs_arb_arith.pyx.c.o
FAILED: [code=1] src/sage/libs/arb/arith.cpython-312-darwin.so.p/meson-generated_src_sage_libs_arb_arith.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/libs/arb/arith.cpython-312-darwin.so.p -Isrc/sage/libs/arb -I../../src/sage/libs/arb -Isrc/sage/cpython -I../../src/sage/cpython -Isrc/sage/libs/flint -I../../src/sage/libs/flint -Isrc/sage/rings -I../../src/sage/rings -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/libs/arb/arith.cpython-312-darwin.so.p/meson-generated_src_sage_libs_arb_arith.pyx.c.o -MF src/sage/libs/arb/arith.cpython-312-darwin.so.p/meson-generated_src_sage_libs_arb_arith.pyx.c.o.d -o src/sage/libs/arb/arith.cpython-312-darwin.so.p/meson-generated_src_sage_libs_arb_arith.pyx.c.o -c src/sage/libs/arb/arith.cpython-312-darwin.so.p/src/sage/libs/arb/arith.pyx.c
src/sage/libs/arb/arith.cpython-312-darwin.so.p/src/sage/libs/arb/arith.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[16/1216] Compiling C object src/sage/cpython/string.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_string.pyx.c.o
FAILED: [code=1] src/sage/cpython/string.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_string.pyx.c.o
arm64-apple-darwin20.0.0-clang -Isrc/sage/cpython/string.cpython-312-darwin.so.p -Isrc/sage/cpython -I../../src/sage/cpython -I/opt/homebrew/include/python3.12 -I/opt/homebrew/opt/openjdk/include -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -Wall -Winvalid-pch -std=c17 -O3 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -D_FORTIFY_SOURCE=2 -isystem /Users/andrew/.local/share/mamba/envs/sage-dev/include -MD -MQ src/sage/cpython/string.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_string.pyx.c.o -MF src/sage/cpython/string.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_string.pyx.c.o.d -o src/sage/cpython/string.cpython-312-darwin.so.p/meson-generated_src_sage_cpython_string.pyx.c.o -c src/sage/cpython/string.cpython-312-darwin.so.p/src/sage/cpython/string.pyx.c
src/sage/cpython/string.cpython-312-darwin.so.p/src/sage/cpython/string.pyx.c:19:10: fatal error: 'Python.h' file not found
19 | #include "Python.h"
| ^~~~~~~~~~
1 error generated.
[17/1216] Generating src/sage/ext/interpreters/sage.ext.interpreters with a custom command
Generating interpreters for fast_callable in src/sage/ext/interpreters
[18/1208] Generating src/sage/modular/arithgroup/farey_symbol.h with a custom command
ninja: build stopped: subcommand failed.
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> from file:///usr/local/src/sage

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

Dima Pasechnik

unread,

Apr 13, 2026, 9:56:42 AM (3 days ago) Apr 13

to sage-...@googlegroups.com, andrew...@gmail.com

Why are you building libecm and
not installing it from conda?

Tobia...@gmx.de

unread,

Apr 13, 2026, 6:22:54 PM (2 days ago) Apr 13

to sage-devel

It looks to me the issue is more about the Python installation.

> fatal error: 'Python.h' file not found
> 19 | #include "Python.h"

The argument

> -I/opt/homebrew/include/python3.12

suggests that it tries to use the homebrew-installed python instead of the one from conda. The questions thus are:

1. Does the python3.12 folder contain a Python.h file?

2. Why is meson trying to use the include directory from the homebrew python and not conda. The logs under /usr/local/src/sage/build/cp312/meson-logs/meson-log.txt might be helpful for this - could you please post them here.

Andrew

unread,

Apr 13, 2026, 9:38:47 PM (2 days ago) Apr 13

to sage-devel

Thanks for the replies:

> Why are you building libecm and not installing it from conda?

I followed the instructions from https://doc.sagemath.org/html/en/installation/source.html. In particular, as far as I know, I did not build libecm by hand. I thought that conda installed everything in its own virtual environment, automatically taking care of things like this?

> suggests that it tries to use the homebrew-installed python instead of the one from conda. The questions thus are:

> 1. Does the python3.12 folder contain a Python.h file?

> 2. Why is meson trying to use the include directory from the homebrew python and not conda. The logs under /usr/local/src/sage/build/cp312/meson-logs/meson-log.txt might be helpful for this - could you please post them here.

Thanks, I didn't know where the meson logs were.

I just tried a new install using:

mamba env create --file environment-3.12-macos.yml --name sage-dev
mamba activate sage-dev
pip install --no-build-isolation --editable .

This time sage compiled for me. Unfortunately, when I run sage it crashes. I attach the meson log and the crash report. Claude suggests that the problem is with fflas-ffpack and givaro. I tried patching and recompiling gaviaro and friends with 10.9.beta8 but couldn't get it to work. In another post, there was an issue downstream with givaro. Perhaps this is not fixed yet?

Andrew