Enhance environment variable handling in find_concerto_pkg_generator.lua for Windows support

Author: ArthurVasseur

Xmake/rules/find_concerto_pkg_generator.lua

@@ -10,19 +10,25 @@ rule("find_cct_pkg_generator")
             dir = path.join(cctPkgGen:installdir(), "bin")
         else
             cctPkgGen = project.target("concerto-pkg-generator")
-            if cctPkgGen then
-                dir = cctPkgGen:targetdir()
-                envs = cctPkgGen:get("runenvs")
-				if not envs and os.host() == "linux" or os.host() == "macosx" then
-					envs = {}
-					for _, pkg in ipairs(cctPkgGen:orderpkgs()) do
-						local installDir = path.join(pkg:installdir(), "lib")
-						envs.LD_LIBRARY_PATH = installDir .. path.envsep() .. (envs.LD_LIBRARY_PATH or "")
-					end
-				end
-				
+        end
+
+        if cctPkgGen then
+            dir = cctPkgGen:targetdir()
+            envs = cctPkgGen:get("runenvs")
+            if not envs then
+                envs = {}
+                for _, pkg in ipairs(cctPkgGen:orderpkgs()) do
+                    if os.host() == "linux" or os.host() == "macosx" then
+                        local installDir = path.join(pkg:installdir(), "lib")
+                        envs.LD_LIBRARY_PATH = installDir .. path.envsep() .. (envs.LD_LIBRARY_PATH or "")
+                    elseif os.host() == "windows" then
+                        local installDir = path.join(pkg:installdir(), "bin")
+                        envs.PATH = installDir .. path.envsep() .. (envs.PATH or "")
+                    end
+                end
             end
         end
+        print(envs)
         local program = find_tool("concerto-pkg-generator", {version = false, paths = dir, envs = envs})
         target:data_set("concerto-pkg-generator", program)
         target:data_set("concerto-pkg-generator-envs", envs)