[make] Fix lua linking on windows

On windows, we need to explicitly link against lua.dll

Author: tobil4sk

Makefile

@@ -1,9 +1,12 @@
 SRC = src/luasimdjson.cpp src/simdjson.cpp
 INCLUDE = -I$(LUA_INCDIR)
-LIBS_PATH = -L$(LUA_LIBDIR)
 LIBS = -lpthread
 FLAGS = -std=c++11 -Wall $(LIBFLAG) $(CFLAGS)
 
+ifdef LUA_LIBDIR
+FLAGS += $(LUA_LIBDIR)/$(LUALIB)
+endif
+
 ifeq ($(OS),Windows_NT)
 	LIBEXT = dll
 else

lua-simdjson-0.0.2-1.rockspec

@@ -32,4 +32,12 @@ build = {
       INST_LUADIR="$(LUADIR)",
       INST_CONFDIR="$(CONFDIR)",
    },
+   platforms = {
+      windows = {
+         build_variables = {
+            LUA_LIBDIR="$(LUA_LIBDIR)",
+            LUALIB="$(LUALIB)",
+         }
+      }
+   }
 }