sci-biology/velvet: v4 expose additional variables as described in manual

Also move the -j1 argument values onto the emake line directly.

Package-Manager: Portage-2.3.5, Repoman-2.3.2
Closes: https://github.com/gentoo/gentoo/pull/4421

Signed-off-by: Justin Lecher <jlec@gentoo.org>

sci-biology/velvet/velvet-1.2.10.ebuild

@@ -34,7 +34,6 @@ src_prepare() {
 	elog "Set them either in your environment or in /etc/portage/make.conf, then re-emerge"
 	elog "the package. For example:"
 	elog "  VELVET_MAXKMERLENGTH=NN emerge [options] velvet"
-	MAKEOPTS+=" -j1"
 
 	if [[ $(tc-getCC) =~ gcc ]]; then
 		local eopenmp=-fopenmp
@@ -61,12 +60,12 @@ src_prepare() {
 }
 
 src_compile() {
-	emake "${MAKE_XOPTS[@]}"
-	emake "${MAKE_XOPTS[@]}" color
+	emake "${MAKE_XOPTS[@]}" -j1
+	emake "${MAKE_XOPTS[@]}" -j1 color
 }
 
 src_test() {
-	emake "${MAKE_XOPTS[@]}" test
+	emake "${MAKE_XOPTS[@]}" -j1 test
 }
 
 src_install() {