--- libseq/Makefile.orig	2026-07-20 09:00:46 UTC
+++ libseq/Makefile
@@ -2,7 +2,7 @@
 #  This file is part of MUMPS 5.9.1, released
 #  on Mon Jul 20 09:00:43 UTC 2026
 #
-all: staticlibmpiseq
+all: staticlibmpiseq sharedlibmpiseq
 
 .PHONY: all staticlibmpiseq sharedlibmpiseq clean
 
@@ -12,14 +12,14 @@ libmpiseq$(PLAT)$(LIBEXT): mpi.o mpic.o elapse.o
 staticlibmpiseq: libmpiseq$(PLAT)$(LIBEXT)
 
 libmpiseq$(PLAT)$(LIBEXT): mpi.o mpic.o elapse.o
-	$(AR)$@ mpi.o mpic.o elapse.o
+	$(AR) $@ mpi.o mpic.o elapse.o
 	$(RANLIB) $@
 
 sharedlibmpiseq:
 	$(MAKE) FPIC="$(FPIC_OPT)" libmpiseq$(PLAT)$(LIBEXT_SHARED)
 
 libmpiseq$(PLAT)$(LIBEXT_SHARED): mpi.o mpic.o elapse.o
-	$(FC) $(SHARED_OPT) mpi.o mpic.o elapse.o -o libmpiseq$(PLAT)$(LIBEXT_SHARED)
+	$(FC) -shared mpi.o mpic.o elapse.o -Wl,-soname,libmpiseq$(PLAT).so.@SOVER@ -o libmpiseq$(PLAT)$(LIBEXT_SHARED)
 
 .f.o:
 	$(FC) $(OPTF) $(FPIC)              -c $*.f $(OUTF)$*.o