add todo-windows.txt

README-WINDOWS.md

@@ -12,6 +12,7 @@ and Visual Studio.
 Compilation steps:
  * run: premake4 vs2010
  * open vs-premake/ag.sln in Visual Studio 2010 or later, proceed as usual
+ * the binaries end up as rel/ag.exe or dbg/ag.exe (release/debug builds)
 
 How this port was made.
 -----------------------

todo-windows.txt

@@ -0,0 +1,15 @@
+Things that could be done for windows port:
+
+1. in options.c:
+gitconfig_file = popen("git config -z --get core.excludesfile", "r");
+(and other uses of popen).
+
+If git is not installed, the following message ends up in stderr:
+
+"'git' is not recognized as an internal or external command, operable program or batch file."
+
+This is because popen() really does "cmd.exe /c git config ..." and executes
+it via CreateProcess() and, I'm guessing, cmd.exe is the one printing this
+message to stderr.
+
+I could re-implement popen() in a way that doesn't add "cmd.exe"