make[3]: python: Command not found
make[3]: *** [generated-release/libraries.cpp] Error 127
make[3]: Leaving directory `/tmp/.../aur-qt5-qtjsbackend-git/src/qt5-qtjsbackend-build/src/tools/mkv8snapshot'
make[2]: *** [sub-mkv8snapshot-make_first] Error 2
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make[1]: *** [sub-tools-make_first-ordered] Error 2
make[1]: Leaving directory `/tmp/.../aur-qt5-qtjsbackend-git/src/qt5-qtjsbackend-build/src'
make: *** [sub-src-make_first] Error 2