I have an idea!

Let's use /bin/sh as the default shell for *nix rather than for !(__unix__)

*cough* been there for almost a year now.

src/xpdev/genwrap.c

@@ -416,7 +416,7 @@ char* DLLCALL os_cmdshell(void)
 {
 	char*	shell=getenv(OS_CMD_SHELL_ENV_VAR);
 
-#if !defined(__unix__)
+#if defined(__unix__)
 	if(shell==NULL)
 #ifdef _PATH_BSHELL
 		shell=_PATH_BSHELL;