use a single script file.

autogenerate the extern folder

.gitignore

@@ -399,3 +399,4 @@ FodyWeavers.xsd
 build_files
 raylib-master
 Makefile
+/*.sln

build/external/premake_external.lua

@@ -1,28 +0,0 @@
-function download_progress(total, current)
-    local ratio = current / total;
-    ratio = math.min(math.max(ratio, 0), 1);
-    local percent = math.floor(ratio * 100);
-    print("Download progress (" .. percent .. "%/100%)")
-end
-
-function check_raylib()
-    os.chdir("external")
-    if(os.isdir("raylib-master") == false) then
-        if(not os.isfile("raylib-master.zip")) then
-            print("Raylib not found, downloading from github")
-            local result_str, response_code = http.download("https://github.com/raysan5/raylib/archive/refs/heads/master.zip", "raylib-master.zip", {
-                progress = download_progress,
-                headers = { "From: Premake", "Referer: Premake" }
-            })
-        end
-        print("Unzipping to " ..  os.getcwd())
-        zip.extract("raylib-master.zip", os.getcwd())
-        os.remove("raylib-master.zip")
-    end
-    os.chdir("../")
-end
-
-function build_externals()
-     print("calling externals")
-     check_raylib()
-end

build/premake5.lua

@@ -12,6 +12,35 @@ newoption
 	default = "opengl33"
 }
 
+function download_progress(total, current)
+    local ratio = current / total;
+    ratio = math.min(math.max(ratio, 0), 1);
+    local percent = math.floor(ratio * 100);
+    print("Download progress (" .. percent .. "%/100%)")
+end
+
+function check_raylib()
+    os.chdir("external")
+    if(os.isdir("raylib-master") == false) then
+        if(not os.isfile("raylib-master.zip")) then
+            print("Raylib not found, downloading from github")
+            local result_str, response_code = http.download("https://github.com/raysan5/raylib/archive/refs/heads/master.zip", "raylib-master.zip", {
+                progress = download_progress,
+                headers = { "From: Premake", "Referer: Premake" }
+            })
+        end
+        print("Unzipping to " ..  os.getcwd())
+        zip.extract("raylib-master.zip", os.getcwd())
+        os.remove("raylib-master.zip")
+    end
+    os.chdir("../")
+end
+
+function build_externals()
+     print("calling externals")
+     check_raylib()
+end
+
 function platform_defines()
     defines{"PLATFORM_DESKTOP"}
 
@@ -64,6 +93,10 @@ if (os.isdir('build_files') == false) then
     os.mkdir('build_files')
 end
 
+if (os.isdir('external') == false) then
+    os.mkdir('external')
+end
+
 workspace (workspaceName)
     location "../"
     configurations { "Debug", "Release"}
@@ -89,9 +122,10 @@ workspace (workspaceName)
 
     targetdir "bin/%{cfg.buildcfg}/"
 
-    include ("external/premake_external.lua")
     build_externals()
 
+    startproject(workspaceName)
+
     project (workspaceName)
         kind "ConsoleApp"
         location "build_files/"
@@ -127,7 +161,7 @@ workspace (workspaceName)
             defines{"_WINSOCK_DEPRECATED_NO_WARNINGS", "_CRT_SECURE_NO_WARNINGS"}
             dependson {"raylib"}
             links {"raylib.lib"}
-            characterset ("MBCS")
+            characterset ("Unicode")
             buildoptions { "/Zc:__cplusplus" }
 
         filter "system:windows"
@@ -155,7 +189,7 @@ workspace (workspaceName)
 
         filter "action:vs*"
             defines{"_WINSOCK_DEPRECATED_NO_WARNINGS", "_CRT_SECURE_NO_WARNINGS"}
-            characterset ("MBCS")
+            characterset ("Unicode")
             buildoptions { "/Zc:__cplusplus" }
         filter{}