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
---
 src/CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src')

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 63e2b943d..054541e40 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -46,6 +46,12 @@ add_executable(
   ${CURL_FILES}
   )
 
+if(CURL_HAS_LTO)
+  set_target_properties(${EXE_NAME} PROPERTIES
+    INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
+    INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
+endif()
+
 source_group("curlX source files" FILES ${CURLX_CFILES})
 source_group("curl source files" FILES ${CURL_CFILES})
 source_group("curl header files" FILES ${CURL_HFILES})
-- 
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