From 4ccf7622db04af58442c460b8091b952585de5c7 Mon Sep 17 00:00:00 2001
From: Tobias Hieta <tobias@plex.tv>
Date: Thu, 9 Jan 2020 12:10:55 +0100
Subject: CMake: Add support for CMAKE_LTO option.

This enables Link Time Optimization. LTO is a proven technique for
optimizing across compilation units.

Closes #4799
---
 lib/CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'lib/CMakeLists.txt')

diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index a9c90b665..e73efb90a 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -96,6 +96,12 @@ endif()
 set_target_properties(${LIB_NAME} PROPERTIES PREFIX "")
 set_target_properties(${LIB_NAME} PROPERTIES IMPORT_PREFIX "")
 
+if(CURL_HAS_LTO)
+  set_target_properties(${LIB_NAME} PROPERTIES
+    INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
+    INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
+endif()
+
 if(WIN32)
   if(BUILD_SHARED_LIBS)
     # Add "_imp" as a suffix before the extension to avoid conflicting with the statically linked "libcurl.lib"
-- 
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