From 5a1dcbb04dcd4246b1b822311f0f37c5a8d2988d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Mon, 21 Dec 2020 12:24:29 +0100
Subject: [PATCH] install.md: add -Wno-profile-instr-unprofiled to clang flags
 in PGO builds

---
 INSTALL.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/INSTALL.md b/INSTALL.md
index f27cb475..a19f46ff 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -186,7 +186,10 @@ later have a regression where PGO with `-O2` is **much** slower.
 If you are using Clang instead of GCC, use the following `CFLAGS` instead:
 
 ```sh
-export CFLAGS="$CFLAGS -O3 -march=native -Wno-ignored-optimization-argument -Wno-profile-instr-out-of-date"
+export CFLAGS="$CFLAGS -O3 -march=native \
+    -Wno-ignored-optimization-argument \
+    -Wno-profile-instr-out-of-date \
+    -Wno-profile-instr-unprofiled"
 ```
 
 Then, tell meson we want to _generate_ profiling data, and build: