--- /usr/portage/media-sound/lmms/lmms-9999.ebuild	2018-11-09 02:20:53.951520409 +0100
+++ /usr/portage/media-sound/lmms/lmms-9999.ebuild	2018-11-13 11:57:28.711918519 +0100
@@ -62,6 +62,11 @@ 
 
 DOCS=( README.md doc/AUTHORS )
 
+src_prepare() {
+	cmake-utils_src_prepare
+	sed -i 's/^/#/' cmake/modules/BashCompletion.cmake || die
+}
+
 src_configure() {
 	local mycmakeargs+=(
 		-DUSE_WERROR=FALSE
@@ -89,6 +94,12 @@ 
 	cmake-utils_src_configure
 }
 
+src_install() {
+	default
+	insinto /usr/share/bash-completion/completions/
+	doins doc/bash-completion/lmms
+}
+
 pkg_postinst() {
 	xdg_mimeinfo_database_update
 	xdg_desktop_database_update