From 63cf0ae7641052b90c3b9fc131bc0968e00b3d70 Mon Sep 17 00:00:00 2001
From: skwerlman <skwerlman@users.noreply.github.com>
Date: Sat, 4 May 2019 23:33:38 -0400
Subject: [PATCH] Fail cmake if protoc doesn't exist (#3705)

fix #3704
---
 CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3ca43f25..5029a3f4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -163,6 +163,9 @@ set(CMAKE_AUTOMOC TRUE)
 
 # Find other needed libraries
 FIND_PACKAGE(Protobuf REQUIRED)
+IF(NOT EXISTS "${Protobuf_PROTOC_EXECUTABLE}")
+  MESSAGE(FATAL_ERROR "No protoc command found!")
+ENDIF()
 
 #Find OpenSSL
 IF(WIN32)