In trying to build libxls tests fail because a test-driver file is missing Like this ... make check-TESTS make[2]: ingresso nella directory "/tmp/guix-build-libxsl-1.4.0.drv-0/source/libxls/test" make[3]: ingresso nella directory "/tmp/guix-build-libxsl-1.4.0.drv-0/source/libxls/test" /gnu/store/qkw4zrwfybxww8f56nkb6hggxambk89b-bash-4.4.0/bin/bash: ../test-driver: File o directory non esistente ... I asked upstream and I was informed that there's no "test-driver" occurrence in libxls source. So they suggest it has to be something specific of my build environment You can see the exchange we had, here https://sourceforge.net/p/libxls/discussion/294119/thread/4b5ce0d8/?limit=25#1550 Here is my definition for libxls http://paste.lisp.org/display/342783 Is this a Guix thing ? Thanks