Do not require `checks` while installing for windows.

It avoids need for a compiler...
diff --git a/metalua-parser-0.7.2-3.rockspec b/metalua-parser-0.7.2-3.rockspec
new file mode 100644
index 0000000..de31982
--- /dev/null
+++ b/metalua-parser-0.7.2-3.rockspec
@@ -0,0 +1,43 @@
+--*-lua-*--
+package = "metalua-parser"
+version = "0.7.2-3"
+source = {
+   url = "git://git.eclipse.org/gitroot/koneki/org.eclipse.koneki.metalua.git",
+   tag = "v0.7.2",
+}
+description = {
+   summary = "Metalua's parser: converting Lua source strings and files into AST",
+   detailed = [[
+           This is a subset of the full Metalua compiler. It defines and generates an AST
+           format for Lua programs, which offers a nice level of abstraction to reason about
+           and manipulate Lua programs.
+   ]],
+   homepage = "http://git.eclipse.org/c/koneki/org.eclipse.koneki.metalua.git",
+   license = "EPL + MIT"
+}
+dependencies = {
+    "lua ~> 5.1",
+    platforms = {
+        freebsd = { "checks >= 1.0" },
+        linux   = { "checks >= 1.0" }
+    }
+}
+build = {
+    type="builtin",
+    modules={
+        ["metalua.grammar.generator"] = "metalua/grammar/generator.lua",
+        ["metalua.grammar.lexer"] = "metalua/grammar/lexer.lua",
+        ["metalua.compiler.parser"] = "metalua/compiler/parser.lua",
+        ["metalua.compiler.parser.table"] = "metalua/compiler/parser/table.lua",
+        ["metalua.compiler.parser.ext"] = "metalua/compiler/parser/ext.lua",
+        ["metalua.compiler.parser.annot.generator"] = "metalua/compiler/parser/annot/generator.lua",
+        ["metalua.compiler.parser.annot.grammar"] = "metalua/compiler/parser/annot/grammar.lua",
+        ["metalua.compiler.parser.stat"] = "metalua/compiler/parser/stat.lua",
+        ["metalua.compiler.parser.misc"] = "metalua/compiler/parser/misc.lua",
+        ["metalua.compiler.parser.lexer"] = "metalua/compiler/parser/lexer.lua",
+        ["metalua.compiler.parser.meta"] = "metalua/compiler/parser/meta.lua",
+        ["metalua.compiler.parser.expr"] = "metalua/compiler/parser/expr.lua",
+        ["metalua.compiler"] = "metalua/compiler.lua",
+        ["metalua.pprint"] = "metalua/pprint.lua",
+    }
+}