diff --git a/sys-cluster/sionlib/files/sionlib-build-shared-libraries.patch b/sys-cluster/sionlib/files/sionlib-build-shared-libraries.patch
index 2f41d58c16..30e6cd32e0 100644
--- a/sys-cluster/sionlib/files/sionlib-build-shared-libraries.patch
+++ b/sys-cluster/sionlib/files/sionlib-build-shared-libraries.patch
@@ -211,26 +211,26 @@
  
 -lib$(SION_LIBNAME_GEN).a : $(SION_OBJS_GEN) $(SION_OBJS_INTERNAL)
 -	$(C_AR) $(AFLAG) -rcs $@ $(SION_OBJS_GEN) $(SION_OBJS_INTERNAL)
-+lib$(SION_LIBNAME_GEN).so : $(SION_OBJS_GEN) $(SION_OBJS_INTERNAL)
-+	$(CC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_GEN).so -shared -o $@ $(SION_OBJS_GEN) $(SION_OBJS_INTERNAL) $(LOCKLINK)
++lib$(SION_LIBNAME_GEN).so : $(SION_OBJS_GEN) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so
++	$(CC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_GEN).so -shared -o $@ $(SION_OBJS_GEN) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM)
  	@echo "*** $@ built"
  
 -lib$(SION_LIBNAME_OMP).a : $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL)
 -	$(C_AR) $(AFLAG) -rcs $@ $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL)
-+lib$(SION_LIBNAME_OMP).so : $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL)
-+	$(CC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_OMP).so -shared -o $@ $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL) $(LOCKLINK) $(OMPFLAG)
++lib$(SION_LIBNAME_OMP).so : $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so
++	$(CC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_OMP).so -shared -o $@ $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM) $(OMPFLAG)
  	@echo "*** $@ built"
  
 -lib$(SION_LIBNAME_MPI).a : $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL)
 -	$(C_AR) $(AFLAG) -rcs $@ $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL)
-+lib$(SION_LIBNAME_MPI).so : $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL)
-+	$(MPICC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_MPI).so -shared -o $@ $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL) $(LOCKLINK)
++lib$(SION_LIBNAME_MPI).so : $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so
++	$(MPICC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_MPI).so -shared -o $@ $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM)
  	@echo "*** $@ built"
  
 -lib$(SION_LIBNAME_OMPI).a : $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL)
 -	$(C_AR) $(AFLAG) -rcs $@ $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL)
-+lib$(SION_LIBNAME_OMPI).so : $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL)
-+	$(HYBCC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_OMPI).so -shared -o $@ $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL) $(LOCKLINK) $(HYBFLAG)
++lib$(SION_LIBNAME_OMPI).so : $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so
++	$(HYBCC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_OMPI).so -shared -o $@ $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM) $(HYBFLAG)
  	@echo "*** $@ built"
  
  sion_generic.o : sion_generic.c
diff --git a/sys-cluster/sionlib/files/sionlib-fix-linking.patch b/sys-cluster/sionlib/files/sionlib-fix-linking.patch
new file mode 100644
index 0000000000..7148eff315
--- /dev/null
+++ b/sys-cluster/sionlib/files/sionlib-fix-linking.patch
@@ -0,0 +1,52 @@
+diff '--color=auto' -ru sionlib-ori/src/lib/Makefile sionlib/src/lib/Makefile
+--- sionlib-ori/src/lib/Makefile	2021-08-29 08:14:05.901799434 +0200
++++ sionlib/src/lib/Makefile	2021-08-29 16:49:25.241515611 +0200
+@@ -66,14 +66,20 @@
+ SION_CXX_HDR = sion_cxx.h
+ endif
+ 
++ifeq ($(PTHREADSUPPORT),"yes")
++LOCKLIB = $(SION_LIBNAME_COM_LOCK_PTHREADS)
++else
++LOCKLIB = $(SION_LIBNAME_COM_LOCK_NONE)
++endif
++
+ USER_HDRS = sion.h sion_common.h sion_serial.h sion_const.h sion_datatypes.h sion_platform.h sion_debug.h $(SION_CXX_HDR)
+ USER_LIBS = lib$(SION_LIBNAME_SER).so lib$(SION_LIBNAME_COM).so lib$(SION_LIBNAME_COM_LOCK_PTHREADS).so lib$(SION_LIBNAME_COM_LOCK_NONE).so
+ 
+ 
+ all: lib$(SION_LIBNAME_COM).so lib$(SION_LIBNAME_SER).so  lib$(SION_LIBNAME_COM_LOCK_PTHREADS).so lib$(SION_LIBNAME_COM_LOCK_NONE).so
+ 
+-lib$(SION_LIBNAME_COM).so : $(SION_COMMON_OBJS)
+-	$(CC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_COM).so -shared -o $@ $(SION_COMMON_OBJS)
++lib$(SION_LIBNAME_COM).so : $(SION_COMMON_OBJS) lib$(LOCKLIB).so
++	$(CC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_COM).so -shared -o $@ $(SION_COMMON_OBJS) $(SIONFWD_LIBS) -l$(LOCKLIB)
+ 	@echo "*** $@ built"
+ 
+ lib$(SION_LIBNAME_COM_LOCK_PTHREADS).so : $(SION_COMMON_LOCK_PTHREADS_OBJS)
+diff '--color=auto' -ru sionlib-ori/src/parlib/Makefile sionlib/src/parlib/Makefile
+--- sionlib-ori/src/parlib/Makefile	2021-08-29 08:14:05.888799373 +0200
++++ sionlib/src/parlib/Makefile	2021-08-29 17:21:42.262938785 +0200
+@@ -93,16 +93,16 @@
+ 	$(CC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_GEN).so -shared -o $@ $(SION_OBJS_GEN) $(SION_OBJS_INTERNAL) $(LOCKLINK)
+ 	@echo "*** $@ built"
+ 
+-lib$(SION_LIBNAME_OMP).so : $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so
+-	$(CC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_OMP).so -shared -o $@ $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM) $(OMPFLAG)
++lib$(SION_LIBNAME_OMP).so : $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so lib$(SION_LIBNAME_GEN).so
++	$(CC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_OMP).so -shared -o $@ $(SION_OBJS_OMP) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM) -l$(SION_LIBNAME_GEN) $(OMPFLAG)
+ 	@echo "*** $@ built"
+ 
+-lib$(SION_LIBNAME_MPI).so : $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so
+-	$(MPICC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_MPI).so -shared -o $@ $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM)
++lib$(SION_LIBNAME_MPI).so : $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so lib$(SION_LIBNAME_GEN).so
++	$(MPICC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_MPI).so -shared -o $@ $(SION_OBJS_MPI) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM) -l$(SION_LIBNAME_GEN)
+ 	@echo "*** $@ built"
+ 
+-lib$(SION_LIBNAME_OMPI).so : $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so
+-	$(HYBCC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_OMPI).so -shared -o $@ $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM) $(HYBFLAG)
++lib$(SION_LIBNAME_OMPI).so : $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL) ../lib/lib$(SION_LIBNAME_COM).so lib$(SION_LIBNAME_GEN).so
++	$(HYBCC) $(LDFLAGS) -Wl,-soname,lib$(SION_LIBNAME_OMPI).so -shared -o $@ $(SION_OBJS_HYB) $(SION_OBJS_INTERNAL) $(LOCKLINK) -l$(SION_LIBNAME_COM) -l$(SION_LIBNAME_GEN) $(HYBFLAG)
+ 	@echo "*** $@ built"
+ 
+ sion_generic.o : sion_generic.c
diff --git a/sys-cluster/sionlib/sionlib-1.7.7-r3.ebuild b/sys-cluster/sionlib/sionlib-1.7.7-r4.ebuild
similarity index 96%
rename from sys-cluster/sionlib/sionlib-1.7.7-r3.ebuild
rename to sys-cluster/sionlib/sionlib-1.7.7-r4.ebuild
index 9fbf33425f..76df6efc6f 100644
--- a/sys-cluster/sionlib/sionlib-1.7.7-r3.ebuild
+++ b/sys-cluster/sionlib/sionlib-1.7.7-r4.ebuild
@@ -38,6 +38,7 @@ REQUIRED_USE="?? ( hostname-regex deep-est-sdv )"
 PATCHES=(
 	"${FILESDIR}/${PN}-respect-flags-v3.patch"
 	"${FILESDIR}/${PN}-build-shared-libraries.patch"
+	"${FILESDIR}/${PN}-fix-linking.patch"
 )
 
 pkg_setup() {
@@ -65,9 +66,13 @@ src_configure() {
 	use hostname-regex && msa="hostname-regex"
 
 	local myconf=(
+		--disable-gcovr
+		--disable-kcov
 		--disable-mic
 		--msa="${msa}"
 		--prefix="${T}/prefix/usr"
+		$(use_enable debug)
+		$(use_enable pthreads)
 	)
 
 	#custom configure?
@@ -77,9 +82,7 @@ src_configure() {
 	use ompi || myconf+=( "--disable-ompi" )
 	use openmp || myconf+=( "--disable-omp" )
 	use parutils || myconf+=( "--disable-parutils" )
-	use pthreads || myconf+=( "--disable-pthreads" )
 
-	use debug && myconf+=( "--enable-debug" )
 	use python && myconf+=( "--enable-python=3" )
 	use sionfwd && myconf+=( "--enable-sionfwd=${EPREFIX}/usr" )