From ec30dddb3cf2932c9f9f04cf91ccb6d5d614b1a3 Mon Sep 17 00:00:00 2001
From: Andrew Noyes <andrew.noyes@snowflake.com>
Date: Fri, 12 Feb 2021 17:44:08 +0000
Subject: [PATCH] Use boost version 1.67 exactly on release-6.2

---
 cmake/CompileBoost.cmake | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cmake/CompileBoost.cmake b/cmake/CompileBoost.cmake
index 77bdb8b542..f1097902f7 100644
--- a/cmake/CompileBoost.cmake
+++ b/cmake/CompileBoost.cmake
@@ -4,7 +4,11 @@ if(NOT BOOSTROOT AND NOT BOOST_ROOT)
   # We can fix this for boost versions > 1.70
   set(BOOST_ROOT /opt/boost_1_67_0)
 endif()
-find_package(Boost 1.67)
+
+# Bug in boost subprocess in 1.72! In release-6.3 and later we replaced the
+# boost subprocess usage with our own thing, but for release-6.2 it's important
+# that we use boost 1.67 exactly.
+find_package(Boost 1.67 EXACT)
 
 if(Boost_FOUND)
   add_library(boost_target INTERFACE)