I am trying to install a python library that depends on fastnumbers 3.0.0, but when trying to install it, I get the following:
warnings.warn(
running build
running build_ext
creating build
creating build/temp.macosx-11-x86_64-3.9
creating build/temp.macosx-11-x86_64-3.9/src
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -stdlib=libc++ -I/private/var/folders/_d/kht28yq15hjbm17zkr9_zhkh0000gp/T/pip-install-p7m6zg86/fastnumbers_538a0b1c68c844a0a91900d614d59f53/include -I/Users/carlos/ide-mx-decision-fraud/env/include -I/usr/local/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9 -c src/fastnumbers.c -o build/temp.macosx-11-x86_64-3.9/src/fastnumbers.o
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -stdlib=libc++ -I/private/var/folders/_d/kht28yq15hjbm17zkr9_zhkh0000gp/T/pip-install-p7m6zg86/fastnumbers_538a0b1c68c844a0a91900d614d59f53/include -I/Users/carlos/ide-mx-decision-fraud/env/include -I/usr/local/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9 -c src/numbers.c -o build/temp.macosx-11-x86_64-3.9/src/numbers.o
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -stdlib=libc++ -I/private/var/folders/_d/kht28yq15hjbm17zkr9_zhkh0000gp/T/pip-install-p7m6zg86/fastnumbers_538a0b1c68c844a0a91900d614d59f53/include -I/Users/carlos/ide-mx-decision-fraud/env/include -I/usr/local/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9 -c src/objects.c -o build/temp.macosx-11-x86_64-3.9/src/objects.o
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -stdlib=libc++ -I/private/var/folders/_d/kht28yq15hjbm17zkr9_zhkh0000gp/T/pip-install-p7m6zg86/fastnumbers_538a0b1c68c844a0a91900d614d59f53/include -I/Users/carlos/ide-mx-decision-fraud/env/include -I/usr/local/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9 -c src/parsing.c -o build/temp.macosx-11-x86_64-3.9/src/parsing.o
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -stdlib=libc++ -I/private/var/folders/_d/kht28yq15hjbm17zkr9_zhkh0000gp/T/pip-install-p7m6zg86/fastnumbers_538a0b1c68c844a0a91900d614d59f53/include -I/Users/carlos/ide-mx-decision-fraud/env/include -I/usr/local/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/include/python3.9 -c src/strings.c -o build/temp.macosx-11-x86_64-3.9/src/strings.o
src/strings.c:115:20: error: implicit declaration of function '_Py_dg_stdnan' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
return PyFloat_from_NaN(sign < 0);
^
/private/var/folders/_d/kht28yq15hjbm17zkr9_zhkh0000gp/T/pip-install-p7m6zg86/fastnumbers_538a0b1c68c844a0a91900d614d59f53/include/fastnumbers/numbers.h:24:55: note: expanded from macro 'PyFloat_from_NaN'
#define PyFloat_from_NaN(negative) PyFloat_FromDouble(_Py_dg_stdnan(negative));
^
1 error generated.
error: command '/usr/bin/clang' failed with exit code 1
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
I am using a mac with big sur and python 3.9.
I already tried exporting the variables as is stated in this other question but it didn't solve my issue