From 12ec3654618887c773681e2eb9d615e2897e5a6a Mon Sep 17 00:00:00 2001
From: Brandon Thomas <echelon@gmail.com>
Date: Wed, 13 Jan 2021 09:51:40 -0500
Subject: [PATCH] get this working on Windows

---
 Cargo.lock | 25 +++++++++++++++++++++++++
 Cargo.toml |  2 +-
 README.md  | 30 ++++++++++++++++++++++++++++++
 3 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index c74dbbb..21383e3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -12,12 +12,27 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b700ce4376041dcd0a327fd0097c41095743c4c8af8887265942faf1100bd040"
 
+[[package]]
+name = "cc"
+version = "1.0.66"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c0496836a84f8d0495758516b8621a622beb77c0fed418570e50764093ced48"
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
+[[package]]
+name = "cmake"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb6210b637171dfba4cda12e579ac6dc73f5165ad56133e5d72ef3131f320855"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "error-chain"
 version = "0.10.0"
@@ -70,6 +85,15 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "736b60249cb25337bc196faa43ee12c705e426f3d55c214d73a4e7be06f92cb4"
 
+[[package]]
+name = "zeromq-src"
+version = "0.1.10+4.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df9133d366817fcffe22e4356043ba187ae122ec5db63d7ce73d1e6a18efa2f1"
+dependencies = [
+ "cmake",
+]
+
 [[package]]
 name = "zmq"
 version = "0.9.2"
@@ -90,4 +114,5 @@ checksum = "d33a2c51dde24d5b451a2ed4b488266df221a5eaee2ee519933dc46b9a9b3648"
 dependencies = [
  "libc",
  "metadeps",
+ "zeromq-src",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 5be0015..da8193b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,5 +14,5 @@ path = "src/main.rs"
 
 [dependencies]
 bytes = "1.0.1"
-zmq = "0.9"
+zmq = { version = "0.9", features = ['vendored'] }
 #zeromq = "0.2.0" # Doesn't compile. Complains about Rust issue #54727
diff --git a/README.md b/README.md
index e52d211..e34a629 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,33 @@
 point-generator
 ===============
 Generate points to send over ZeroMQ to the Unreal Engine point cloud demo.
+
+Windows installation
+--------------------
+The best solution is to depend on the provided vendored libs:
+
+```toml
+zmq = { version = "0.9", features = ['vendored'] }
+```
+
+Trying to build our own zeromq is COMPLICATED. I don't understand the Windows ecosystem at all, 
+and I spent hours trying to get things working:
+
+* Install [Microsoft's vcpkg](https://github.com/Microsoft/vcpkg/) package manager.
+* `PS C:\dev\vcpkg> .\vcpkg.exe install czmq`
+* [Install CMake](https://cmake.org/download/) and add the bin directory (`C:\Program Files\CMake\bin`)
+  to the path (System properties > Advanced > Environment variables).
+  
+* Build:
+
+```
+mkdir build
+cd build
+cmake ..
+```
+
+* Then open the `.sln` file in Visual Studio and build... 
+* which gives you `dll` and `lib` files...
+* Add those to the windows Path...
+* (Not working)
+