Create a shared version of the MUMPS library.

Index: mumps/src/Makefile
===================================================================
--- mumps.orig/src/Makefile
+++ mumps/src/Makefile
@@ -23,8 +23,10 @@ z:
 
 include $(topdir)/Makefile.inc
 
-mumps_lib:    $(libdir)/libmumps_common$(PLAT)$(LIBEXT) \
-              $(libdir)/lib$(ARITH)mumps$(PLAT)$(LIBEXT)
+mumps_lib:    $(libdir)/libmumps_common$(PLAT).a \
+              $(libdir)/libmumps_common$(PLAT).so \
+              $(libdir)/lib$(ARITH)mumps$(PLAT).a \
+              $(libdir)/lib$(ARITH)mumps$(PLAT).so
 
 OBJS_COMMON_MOD = \
         lr_common.o \
@@ -167,14 +169,22 @@ OBJS_OTHER = \
         $(ARITH)tools.o\
         $(ARITH)type3_root.o
 
-$(libdir)/libmumps_common$(PLAT)$(LIBEXT):      $(OBJS_COMMON_MOD) $(OBJS_COMMON_OTHER)
-	$(AR)$@ $?
+$(libdir)/libmumps_common$(PLAT).a:      $(OBJS_COMMON_MOD) $(OBJS_COMMON_OTHER)
+	$(AR) $@ $?
 	$(RANLIB) $@
 
-$(libdir)/lib$(ARITH)mumps$(PLAT)$(LIBEXT):    $(OBJS_MOD) $(OBJS_OTHER)
-	$(AR)$@ $?
+$(libdir)/libmumps_common$(PLAT).so:      $(OBJS_COMMON_MOD) $(OBJS_COMMON_OTHER)
+	$(FC) -shared $^ -Wl,-soname,libmumps_common$(PLAT)-5.2.1.so -L$(libdir) $(LORDERINGS) -lpthread $(MPIFLIB) $(MPICLIB) $(LEXTRAS) -o $(libdir)/libmumps_common$(PLAT)-5.2.1.so -Wl,-z,defs
+	ln -s libmumps_common$(PLAT)-5.2.1.so $@
+
+$(libdir)/lib$(ARITH)mumps$(PLAT).a:    $(OBJS_MOD) $(OBJS_OTHER)
+	$(AR) $@ $?
 	$(RANLIB) $@
 
+$(libdir)/lib$(ARITH)mumps$(PLAT).so:    $(OBJS_MOD) $(OBJS_OTHER)
+	$(FC) -shared $^ -Wl,-soname,lib$(ARITH)mumps$(PLAT)-5.2.1.so -L$(libdir) -lmumps_common$(PLAT) $(LORDERINGS) $(MPIFLIB) $(LEXTRAS) $(LIBBLAS) $(SCALAP) $(LAPACK) -o $(libdir)/lib$(ARITH)mumps$(PLAT)-5.2.1.so -Wl,-z,defs
+	ln -s lib$(ARITH)mumps$(PLAT)-5.2.1.so $@
+
 # Dependencies between modules:
 $(ARITH)mumps_load.o:		$(ARITH)mumps_comm_buffer.o \
 				$(ARITH)mumps_struc_def.o \
@@ -290,13 +300,13 @@ $(OBJS_OTHER):$(OBJS_COMMON_MOD) $(OBJS_
 
 .SUFFIXES: .c .F .o
 .F.o:
-	$(FC) $(OPTF) $(INCS) $(IORDERINGSF) $(ORDERINGSF) -I. -I../include -c $*.F $(OUTF)$*.o
+	$(FC) $(OPTF) $(INCS) $(IORDERINGSF) $(ORDERINGSF) -I. -I../include -fPIC -c $*.F $(OUTF)$*.o
 .c.o:
-	$(CC) $(OPTC) $(INCS) -I../include $(CDEFS) $(IORDERINGSC) $(ORDERINGSC) -c $*.c $(OUTC)$*.o
+	$(CC) $(OPTC) $(INCS) -I../include $(CDEFS) $(IORDERINGSC) $(ORDERINGSC) -fPIC -c $*.c $(OUTC)$*.o
 
 $(ARITH)mumps_c.o:	mumps_c.c
 	$(CC) $(OPTC) $(INCS) $(CDEFS) -DMUMPS_ARITH=MUMPS_ARITH_$(ARITH) \
-	      $(IORDERINGSC) $(ORDERINGSC) -I../include -c mumps_c.c $(OUTC)$@
+	      $(IORDERINGSC) $(ORDERINGSC) -I../include -fPIC -c mumps_c.c $(OUTC)$@
 
 
 clean:
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<tr><td><span title='2021-09-06 12:15:57 +0200'>2021-09-06</span></td><td><a href='/guix/commit/.mailmap?id=7158f8e4e9f81dbe004789018dcf06a5fe87d602'>Update mailmap.</a><span class='msg-avail'>...</span></td><td>Liliana Marie Prikler</td></tr>
<tr><td><span title='2021-09-04 12:25:17 +0200'>2021-09-04</span></td><td><a href='/guix/commit/.mailmap?id=1fd0bf60ea261fac426052386029ead0ac68cad1'>Update mailmap.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2021-07-27 12:34:56 -0400'>2021-07-27</span></td><td><a href='/guix/commit/.mailmap?id=c0e6e8d25e3750a35bebc80469ee86e7826bd769'>Update mailmap.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2021-07-08 09:48:22 +0200'>2021-07-08</span></td><td><a href='/guix/commit/.mailmap?id=0a04c25482c4d848a6a29711fccf5682319e26aa'>mailmap: Update entries for Matthew James Kraai.</a><span class='msg-avail'>...</span></td><td>Matthew James Kraai</td></tr>
<tr><td><span title='2021-06-23 22:29:23 -0500'>2021-06-23</span></td><td><a href='/guix/commit/.mailmap?id=6d388103a4ed8f14f1ac6ac7a2ff22c5fa6b8cd4'>gnu: Add Sollya.</a><span class='msg-avail'>...</span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2021-04-21 18:02:27 -0400'>2021-04-21</span></td><td><a href='/guix/commit/.mailmap?id=449844474da86b5f10a4c5e4f1744e1e3a716d6e'>Update email address for Kei.</a><span class='msg-avail'>...</span></td><td>Kei Kebreau</td></tr>
<tr><td><span title='2020-05-15 09:08:46 +0200'>2020-05-15</span></td><td><a href='/guix/commit/.mailmap?id=dff31d41d945bf4b25ad3014dac32561bfbb33a0'>mailmap: Update for self.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-05-13 09:30:26 +0300'>2020-05-13</span></td><td><a href='/guix/commit/.mailmap?id=3c986a7dc268756c097212de958f046b29b76c1b'>mailmap: Update entries for Nikita.</a><span class='msg-avail'>...</span></td><td>nikita</td></tr>