Zip the sources and install them

Packages describing “source” as local USE flag

Package “source” Flag Description
app-editors/emacs Install C source files and make them available for find-function
dev-lisp/cmucl Include source code for CMUCL in installation
dev-java/openjfx Install JavaFX sources
dev-java/openjdk-bin Install JVM sources
dev-java/openjdk Install JVM sources

All packages providing a “source” USE flag (385)