Pre-compilation

Note

Optional for Environ v2.0 and up.

The installation process of Environ v2.0 (or later) will automatically pre-compile QE and will abort if any issues arise. However, if using an older version of Environ, QE pre-compilation is required at this stage. You may do so from the QE root directory with

make <package>

where package is any of the packages supported by Environ: pw, cp, tddfpt, or xspectra. If issues arise, solutions may be found in the QE docs or on the QE forum.

Note

If QE is manually pre-compiled, Environ v2.0 (or later) re-compilation of QE will proceed quickly.