diff --git a/games-emulation/mupen64plus-qt/Manifest b/games-emulation/mupen64plus-qt/Manifest
index f826be1d1b..c0bca664a6 100644
--- a/games-emulation/mupen64plus-qt/Manifest
+++ b/games-emulation/mupen64plus-qt/Manifest
@@ -1 +1 @@
-DIST mupen64plus-qt-1.14.tar.gz 573526 BLAKE2B f81681861de61db9e68eb80941e97644a2e903b221c470e981c9e7f39e3cc720f59e57a08a7d5346b99ae963d6639c275c98f6519df9a203b0aaf567e9169451 SHA512 c4260a4d01362c4aa6c921bd816dd4ea6bae03380ad461613fffdcb877c09b0f8cc7e3e954842c1dd533ffdc546086b943ddf17c3c133c0b772cf62111ca01ea
+DIST mupen64plus-qt-1.15.tar.gz 573009 BLAKE2B 9db7c5c7fefa99466933e4526338487b138eb970595d0ac92aedb1649e9786785b2472b7716cd24080e99cddda9d434207d2387515a62f6b2c111076bdcb10ed SHA512 f7abb23b401febbf60cfb04bcfe37047ce2e323241665aaae06874903da33c0dedf405809a8af193f82f1dc4537adcbcd480f86b5dad5d3af635d1eb00fb6aae
diff --git a/sci-libs/CombBLAS/CombBLAS-0_pre20220331.ebuild b/sci-libs/CombBLAS/CombBLAS-0_pre20220331.ebuild
index 23f7d80736..fd6d8db209 100644
--- a/sci-libs/CombBLAS/CombBLAS-0_pre20220331.ebuild
+++ b/sci-libs/CombBLAS/CombBLAS-0_pre20220331.ebuild
@@ -19,6 +19,7 @@ SLOT="0"
 
 DEPEND="
 	~sys-cluster/Graph500-1.2
+	sys-cluster/psort
 	sys-cluster/usort
 	virtual/mpi
 "
diff --git a/sci-libs/libROM/libROM-1.0.0.ebuild b/sci-libs/libROM/libROM-1.0.0.ebuild
index a914694e27..b2d302f7b9 100644
--- a/sci-libs/libROM/libROM-1.0.0.ebuild
+++ b/sci-libs/libROM/libROM-1.0.0.ebuild
@@ -43,7 +43,7 @@ DOCS=( README.md CHANGELOG docs/libROM_Design_and_Theory.pdf )
 src_configure() {
 	local mycmakeargs=(
 		-DBUILD_STATIC=OFF
-		-DUSE_MFEM=OFF
+		-DUSE_MFEM=$(usex mfem)
 	)
 	cmake_src_configure
 }
diff --git a/sci-libs/mlpack/mlpack-3.4.2_p20220501.ebuild b/sci-libs/mlpack/mlpack-3.4.2_p20220501.ebuild
index 0ff16375f7..29b2f8f458 100644
--- a/sci-libs/mlpack/mlpack-3.4.2_p20220501.ebuild
+++ b/sci-libs/mlpack/mlpack-3.4.2_p20220501.ebuild
@@ -113,7 +113,7 @@ src_unpack() {
 }
 
 src_prepare() {
-	rm src/mlpack/tescatch.hpp
+	rm src/mlpack/tests/catch.hpp || die
 	rm -r src/mlpack/core/std_backport || die
 	rm -r src/mlpack/core/cereal/{pair_associative_container,unordered_map}.hpp || die