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) $@
ix/refs/?id=1b70995498973fe899f8f039586e303c7ec7a3bd'>refs</a><a class='active' href='/guix/log/gnu/services/sysctl.scm'>log</a><a href='/guix/tree/gnu/services/sysctl.scm?id=1b70995498973fe899f8f039586e303c7ec7a3bd'>tree</a><a href='/guix/commit/gnu/services/sysctl.scm?id=1b70995498973fe899f8f039586e303c7ec7a3bd'>commit</a><a href='/guix/diff/gnu/services/sysctl.scm?id=1b70995498973fe899f8f039586e303c7ec7a3bd'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/services/sysctl.scm'>
<input type='hidden' name='id' value='1b70995498973fe899f8f039586e303c7ec7a3bd'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=1b70995498973fe899f8f039586e303c7ec7a3bd'>root</a>/<a href='/guix/log/gnu?id=1b70995498973fe899f8f039586e303c7ec7a3bd'>gnu</a>/<a href='/guix/log/gnu/services?id=1b70995498973fe899f8f039586e303c7ec7a3bd'>services</a>/<a href='/guix/log/gnu/services/sysctl.scm?id=1b70995498973fe899f8f039586e303c7ec7a3bd'>sysctl.scm</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/gnu/services/sysctl.scm?id=1b70995498973fe899f8f039586e303c7ec7a3bd&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-11-20 21:23:19 +0200'>2019-11-20</span></td><td><a href='/guix/commit/gnu/services/sysctl.scm?id=77ed06a8bf049827c45e6208475ac9527eb423ea'>services: sysctl: Make service one-shot.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sysctl.scm (sysctl-shepherd-service): Adjust shepherd
service to use the 'one-shot?' keyword. Remove 'stop' command. Remove
'respawn' option.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2017-07-18 20:16:03 +0800'>2017-07-18</span></td><td><a href='/guix/commit/gnu/services/sysctl.scm?id=172b3e2cc2d0384970c362e46af8231c63b0b004'>services: sysctl: Fix typo.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sysctl.scm: Fix typo of 'make-sysctl-configuration'.
</span></span></td><td>宋文武</td></tr>
<tr><td><span title='2017-07-04 20:40:51 +0800'>2017-07-04</span></td><td><a href='/guix/commit/gnu/services/sysctl.scm?id=296bf4d5ab1cf7822956205b6d266c2c67ce056c'>services: Add 'sysctl-service-type'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sysctl.scm: New file.
* doc/guix.texi (Miscellaneous Services): Document it.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
</span></span></td><td>宋文武</td></tr>