From 5f4a9c96554fe126423d0d2c9003691774289a11 Mon Sep 17 00:00:00 2001
From: Gunnar Beutner <gunnar.beutner@icinga.com>
Date: Wed, 17 Jan 2018 14:26:37 +0100
Subject: [PATCH] Use gcc-ar and gcc-ranlib when building with -flto

---
 CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c8bd97fbf..9d3fcd19c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -262,6 +262,11 @@ if(ICINGA2_LTO_BUILD)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto")
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
+
+    if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9.0) AND NOT OPENBSD)
+      set(CMAKE_AR "gcc-ar")
+      set(CMAKE_RANLIB "gcc-ranlib")
+    endif()
   endif()
 endif()