"./configure --help" says: Fine tuning of the installation directories: [...] --datarootdir=DIR read-only arch.-independent data root [PREFIX/share] --datadir=DIR read-only architecture-independent data [DATAROOTDIR]
AFAIU, this means PREFIX/share/guile/2.0/ is where the *.scm files will be installed. That is, installing Guile 2.0.12 will overwrite the Scheme files that were installed there by previous Guile 2.0.x versions. If the above is true, then the question that bothers me is whether replacing these files might cause any trouble for programs that were compiled against previous Guile 2.0.x versions (like GDB and Make, for example). If there are potential incompatibilities visible on the Scheme level, then I think a versioned directory under PREFIX/share/guile/2.0/ would be in order, so that several versions of Guile could live on the same system. The same issue arises with the cache directory, where the *.go files are installed (I have those in LIBDIR/guile/2.0/ccache/). Is there a potential problem here? TIA
