Patch the makefile to create liblua.so.

--- a/src/Makefile	2021-02-09 18:47:17.000000000 +0000
+++ b/src/Makefile	2022-01-03 11:30:36.964501941 +0000
@@ -33,6 +33,7 @@
 PLATS= guess aix bsd c89 freebsd generic linux linux-readline macosx mingw posix solaris
 
 LUA_A=	liblua.a
+LUA_SO= liblua.so
 CORE_O=	lapi.o lcode.o lctype.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o lundump.o lvm.o lzio.o
 LIB_O=	lauxlib.o lbaselib.o lcorolib.o ldblib.o liolib.o lmathlib.o loadlib.o loslib.o lstrlib.o ltablib.o lutf8lib.o linit.o
 BASE_O= $(CORE_O) $(LIB_O) $(MYOBJS)
@@ -44,7 +45,7 @@
 LUAC_O=	luac.o
 
 ALL_O= $(BASE_O) $(LUA_O) $(LUAC_O)
-ALL_T= $(LUA_A) $(LUA_T) $(LUAC_T)
+ALL_T= $(LUA_A) $(LUA_T) $(LUAC_T) $(LUA_SO)
 ALL_A= $(LUA_A)
 
 # Targets start here.
@@ -56,6 +57,11 @@
 
 a:	$(ALL_A)
 
+$(LUA_SO): $(CORE_O) $(LIB_O)
+	$(CC) -shared -ldl -Wl,-soname,$(LUA_SO).$(V) -o $@.$(R) $? -lm $(MYLDFLAGS)
+	ln -sf $(LUA_SO).$(R) $(LUA_SO).$(V)
+	ln -sf $(LUA_SO).$(R) $(LUA_SO)
+
 $(LUA_A): $(BASE_O)
 	$(AR) $@ $(BASE_O)
 	$(RANLIB) $@
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<div class='path'>path: <a href='/guix/log/?id=44c3bd8dc986c526322615b94ce915e7d1402d0d'>root</a>/<a href='/guix/log/nix?id=44c3bd8dc986c526322615b94ce915e7d1402d0d'>nix</a>/<a href='/guix/log/nix/nix-daemon?id=44c3bd8dc986c526322615b94ce915e7d1402d0d'>nix-daemon</a>/<a href='/guix/log/nix/nix-daemon/shared.hh?id=44c3bd8dc986c526322615b94ce915e7d1402d0d'>shared.hh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/nix/nix-daemon/shared.hh?id=44c3bd8dc986c526322615b94ce915e7d1402d0d&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-04-03 22:08:33 +0200'>2021-04-03</span></td><td><a href='/guix/commit/nix/nix-daemon/shared.hh?id=222fff253c6c6a3d1def16ed90723d7f2c4f9b89'>daemon: Remove dead code.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>