--- /dev/null
+Add the compilation of a shared library.
+Compile the lua binary with the shared library.
+And install the shared library.
+The variable BUILDMODE allows to switch between static and dynamic mode.
+
+Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
+
+Index: b/Makefile
+===================================================================
+--- a/Makefile
++++ b/Makefile
+@@ -42,6 +42,7 @@
+ TO_BIN= lua luac
+ TO_INC= lua.h luaconf.h lualib.h lauxlib.h lua.hpp
+ TO_LIB= liblua.a
++TO_SOLIB = liblua.so.$(R)
+ TO_MAN= lua.1 luac.1
+
+ # Lua version and release.
+@@ -60,6 +61,8 @@
+ install: dummy
+ cd src && $(MKDIR) $(INSTALL_BIN) $(INSTALL_INC) $(INSTALL_LIB) $(INSTALL_MAN) $(INSTALL_LMOD) $(INSTALL_CMOD)
+ cd src && $(INSTALL_EXEC) $(TO_BIN) $(INSTALL_BIN)
++ test -f src/$(TO_SOLIB) && cd src && $(INSTALL_EXEC) $(TO_SOLIB) $(INSTALL_LIB) || :
++ test -f src/$(TO_SOLIB) && ln -sf $(TO_SOLIB) $(INSTALL_LIB)/liblua.so || :
+ cd src && $(INSTALL_DATA) $(TO_INC) $(INSTALL_INC)
+ cd src && $(INSTALL_DATA) $(TO_LIB) $(INSTALL_LIB)
+ cd doc && $(INSTALL_DATA) $(TO_MAN) $(INSTALL_MAN)
+Index: b/src/Makefile
+===================================================================
+--- a/src/Makefile
++++ b/src/Makefile
+@@ -29,6 +29,7 @@
+ PLATS= aix ansi bsd freebsd generic linux 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
+@@ -43,8 +44,13 @@
+ LUAC_O= luac.o
+
+ ALL_O= $(BASE_O) $(LUA_O) $(LUAC_O)
++ifneq (dynamic,$(BUILDMODE))
+ ALL_T= $(LUA_A) $(LUA_T) $(LUAC_T)
++else
++ALL_T= $(LUA_A) $(LUA_SO) $(LUA_T) $(LUAC_T)
++endif
+ ALL_A= $(LUA_A)
++ALL_SO= $(LUA_SO)
+
+ # Targets start here.
+ default: $(PLAT)
+@@ -55,12 +61,23 @@
+
+ a: $(ALL_A)
+
++so: $(ALL_SO)
++
+ $(LUA_A): $(BASE_O)
+ $(AR) $@ $(BASE_O)
+ $(RANLIB) $@
+
++$(LUA_SO): $(CORE_O) $(LIB_O)
++ $(CC) -o $@.$(PKG_VERSION) -shared -Wl,-soname="$@.$(PKG_VERSION)" $?
++ ln -fs $@.$(PKG_VERSION) $@
++
++ifneq (dynamic,$(BUILDMODE))
+ $(LUA_T): $(LUA_O) $(LUA_A)
+ $(CC) -o $@ $(LDFLAGS) $(LUA_O) $(LUA_A) $(LIBS)
++else
++$(LUA_T): $(LUA_O) $(LUA_SO)
++ $(CC) -o $@ -L. $(LDFLAGS) $(LUA_O) -llua $(LIBS)
++endif
+
+ $(LUAC_T): $(LUAC_O) $(LUA_A)
+ $(CC) -o $@ $(LDFLAGS) $(LUAC_O) $(LUA_A) $(LIBS)