The (ice-9 popen) module should not be added to the imported-modules here, because that depends on the Guile that is used on the host side. * guix/build-system/minify.scm (%minify-build-system-modules): Remove import of (ice-9 popen).
* guix/build-system/minify.scm: New file. * guix/build/minify-build-system: New file. * Makefile.am (MODULES): Add new files. * doc/guix.texi (Build Systems): Document minify-build-system.