* ANNOUNCE

[lyx.git] / 3rdparty / libiconv / CMakeLists.txt

diff --git a/3rdparty/libiconv/CMakeLists.txt b/3rdparty/libiconv/CMakeLists.txt
index 7f5c73bf7f67c75012267fb7bf9099afa4adcc45..12d5446a129d4b3437455ccb1c272e8abd1087e2 100644 (file)
--- a/3rdparty/libiconv/CMakeLists.txt
+++ b/3rdparty/libiconv/CMakeLists.txt
@@ -7,8 +7,15 @@
 project ( libiconv C )
 cmake_minimum_required(VERSION 3.1)
 
+set(LYX_IPO_SUPPORTED FALSE)
 if (POLICY CMP0069)
   cmake_policy(SET CMP0069 NEW)
+  if (LYX_USE_IPO MATCHES "ON")
+    set(LYX_IPO_SUPPORTED YES)
+  endif()
+endif()
+if (POLICY CMP0075)
+  cmake_policy(SET CMP0075 NEW)
 endif()
 
 set(CMAKE_MODULE_PATH .)
@@ -59,4 +66,6 @@ set(ICONV_INCLUDE_DIR ${BINDIR}/include CACHE STRING "libiconv include  dir" FOR
 set(ICONV_LIBRARY iconv CACHE STRING "libiconv library" FORCE)
 set(ICONV_FOUND iconv CACHE STRING "libiconv found" FORCE)
 
-set_target_properties(iconv PROPERTIES FOLDER "3rd_party")
+set_target_properties(iconv PROPERTIES
+       FOLDER "3rd_party"
+       INTERPROCEDURAL_OPTIMIZATION ${LYX_IPO_SUPPORTED})