From 3364c6766229360a87d5365fa5fbe29c38a49b74 Mon Sep 17 00:00:00 2001
From: Kefu Chai <tchaikov@gmail.com>
Date: Thu, 4 Aug 2022 13:09:11 +0800
Subject: [PATCH] cmake: disable LTO when building pmdk

See-also: https://tracker.ceph.com/issues/54473
Signed-off-by: Kefu Chai <tchaikov@gmail.com>
(cherry picked from commit 2a97033ba86ac678a2ce5f99c60090c79f5fd257)

Conflicts:
	cmake/modules/Buildpmem.cmake: trivial resolution
---
 cmake/modules/Buildpmem.cmake | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmake/modules/Buildpmem.cmake b/cmake/modules/Buildpmem.cmake
index e264fabd5d2a6..61c5ba6019f03 100644
--- a/cmake/modules/Buildpmem.cmake
+++ b/cmake/modules/Buildpmem.cmake
@@ -21,6 +21,7 @@ function(build_pmem)
     set(PMDK_LIB_DIR "nondebug")
   endif()
 
+  set(pmdk_cflags "-Wno-error -fno-lto")
   include(ExternalProject)
   ExternalProject_Add(pmdk_ext
       ${source_dir_args}
@@ -29,7 +30,7 @@ function(build_pmem)
       # build system tests statically linking to librbd (which uses
       # libpmemobj) will not link (because we don't build the ndctl
       # static library here).
-      BUILD_COMMAND ${make_cmd} CC=${CMAKE_C_COMPILER} EXTRA_CFLAGS=-Wno-error NDCTL_ENABLE=n BUILD_EXAMPLES=n BUILD_BENCHMARKS=n DOC=n
+      BUILD_COMMAND ${make_cmd} CC=${CMAKE_C_COMPILER} "EXTRA_CFLAGS=${pmdk_cflags}" NDCTL_ENABLE=n BUILD_EXAMPLES=n BUILD_BENCHMARKS=n DOC=n
       BUILD_IN_SOURCE 1
       BUILD_BYPRODUCTS "<SOURCE_DIR>/src/${PMDK_LIB_DIR}/libpmem.a" "<SOURCE_DIR>/src/${PMDK_LIB_DIR}/libpmemobj.a"
       INSTALL_COMMAND "")
-- 
2.39.5