Unable to get SCM version: defaulting to 1.0.1
running build_ext
Building extension for librsync...
building 'duplicity._librsync' extension
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -iwithsysroot/System/Library/Frameworks/System.framework/PrivateHeaders -iwithsysroot/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.9/Headers -arch arm64 -arch x86_64 -Werror=implicit-function-declaration -I/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.9/include/python3.9 -c duplicity/_librsyncmodule.c -o build/temp.macosx-10.9-universal2-3.9/duplicity/_librsyncmodule.o
clang -bundle -undefined dynamic_lookup -arch arm64 -arch x86_64 -Wl,-headerpad,0x1000 build/temp.macosx-10.9-universal2-3.9/duplicity/_librsyncmodule.o -lrsync -o build/lib.macosx-10.9-universal2-3.9/duplicity/_librsync.cpython-39-darwin.so
ld: warning: ignoring file /opt/sw/lib/librsync.dylib, building for macOS-arm64 but attempting to link with file built for macOS-x86_64
ld: warning: dylib (/opt/sw/lib/librsync.dylib) was built for newer macOS version (12.4) than being linked (10.9)
copying build/lib.macosx-10.9-universal2-3.9/duplicity/_librsync.cpython-39-darwin.so -> duplicity