--- src/progress.d.orig	2019-04-16 02:18:26 UTC

+++ src/progress.d

@@ -7,6 +7,20 @@ import std.datetime;

 import core.sys.posix.unistd;

 import core.sys.posix.sys.ioctl;

+// core.sys.posix.sys.ioccom;

+enum uint IOCPARM_MASK = 0x1fff; // parameter length, at most 13 bits

+enum uint IOC_OUT = 0x40000000; // copy parameters back

+

+uint _IOC(T=typeof(null))(uint inorout, uint group, uint num, size_t len)

+{

+    return (inorout | ((len & IOCPARM_MASK) << 16) | (group << 8) | num);

+}

+uint _IOR(T)(char g, int n)

+{

+    return _IOC!(T)(IOC_OUT, cast(uint)g, cast(uint)n, T.sizeof);

+}

+enum uint TIOCGWINSZ = _IOR!(winsize)('t', 104);

+

 class Progress

 {

   private: