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:
s='left'>Author</th></tr>
<tr><td><span title='2023-04-02 12:38:45 +0200'>2023-04-02</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=380faf265b0c3b231ab8b69597d161be5e704e18'>services: mympd: Use records for user and group fields.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-04-02 12:35:30 +0200'>2023-04-02</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=7fdadeac11a997583305cb867b4a8828808ae953'>services: mpd: Use proper records for user and group fields.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-04-02 12:35:30 +0200'>2023-04-02</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=2c4df1a41af70ebbae4422878ce6a4c8600c6811'>services: mpd: Fix unintentional API breakage for mixer-type field.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-04-02 12:35:30 +0200'>2023-04-02</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=0fbb356714f4ae3ea18e4997131a0e1746cc923c'>services: replace bare serializers with (serializer ...)</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-03-24 11:01:01 -0400'>2023-03-24</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=bc30a9ee889fb1b81c43a7f94ea4c2b95a15db75'>services: mpd: Set PulseAudio-related variables.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-03-24 10:55:40 -0400'>2023-03-24</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=206446b4840279596b3b4522beaee43a3359133d'>services: audio: Remove redundant list-of-string? predicate.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-03-24 10:55:40 -0400'>2023-03-24</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=0185b2f9b20565f2c1b9249e6f61d2a8497101cf'>services: mympd: Require 'syslog service when configured to log to syslog.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-02-05 18:25:10 +0100'>2023-02-05</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=4b9e1e84585270a40cec485046ce15387405d256'>services: mpd: Fix serialization procedure for list-of-string.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-02-05 06:56:44 +0100'>2023-02-05</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=139c9a53cb19a97947aa6998eae953a4f32d3c3e'>services: Add mympd-service-type.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-02-05 06:56:43 +0100'>2023-02-05</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=637a9c3b264fe8eb76b6ed9f104b635d95632be6'>services: mpd: Do not hardcode environment variables.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-02-05 06:56:43 +0100'>2023-02-05</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=5c5f0fc1135ff15f9c4adfc5f27eadd9a592b5d1'>services: mpd: Refactor MPD service.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-02-05 06:56:43 +0100'>2023-02-05</span></td><td><a href='/guix/commit/gnu/services/audio.scm?id=d7fd9ec209f72e9cfff04a48bf16e092f258d8ff'>services: mpd: Rewrite using 'define-configuration'.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>