From a13738fe792b5b3e928394057875ad5d18a21d4e Mon Sep 17 00:00:00 2001
From: Kris Kwiatkowski <contact@amongbytes.com>
Date: Wed, 23 Jun 2021 08:13:08 +0100
Subject: [PATCH] prevent updating llvm-project during 'make'

---
 .cmake/libstd-memory_sanitizer.mk | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.cmake/libstd-memory_sanitizer.mk b/.cmake/libstd-memory_sanitizer.mk
index f610c3e9..903ee9bf 100644
--- a/.cmake/libstd-memory_sanitizer.mk
+++ b/.cmake/libstd-memory_sanitizer.mk
@@ -18,6 +18,9 @@ ExternalProject_Add(
   INSTALL_COMMAND   DESTDIR=${PREFIX} make install-cxx-headers install-cxx install-cxxabi
   COMMENT           "Building memcheck instrumented libc++ and libc++abi"
   PREFIX            ${PREFIX}
+  # Don't try updating the source. This prevents running update when calling 'make' (not sure why update step is run during make).
+  # It will also cause not updateing source during calling 'cmake' again. But we use fixed branch, so this shouldn't be needed
+  UPDATE_DISCONNECTED TRUE
 )
 
 add_library(