LINK_OPTIONS: Add new family of properties

This family enable to manage link flags

Three new properties:
* directory property: LINK_OPTIONS
* target properties: LINK_OPTIONS and INTERFACE_LINK_OPTIONS

Two new commands
* add_link_options(): to populate directory property
* target_link_options(): to populate target properties

Fixes: #16543

3 files changed, 23 insertions, 0 deletions

diff --git a/Tests/ExportImport/Export/CMakeLists.txt b/Tests/ExportImport/Export/CMakeLists.txt
index 0f1a556..a1c4993 100644
--- a/Tests/ExportImport/Export/CMakeLists.txt
+++ b/Tests/ExportImport/Export/CMakeLists.txt
@@ -597,3 +597,13 @@ install(
   )
 install(DIRECTORY $<1:include/abs>$<0:/wrong> DESTINATION $<1:include>$<0:/wrong>)
 install(EXPORT expAbs NAMESPACE expAbs_ DESTINATION ${CMAKE_INSTALL_PREFIX}/lib/expAbs)
+
+
+#------------------------------------------------------------------------------
+# test export of INTERFACE_LINK_OPTIONS
+add_library(testLinkOptions INTERFACE)
+target_link_options(testLinkOptions INTERFACE INTERFACE_FLAG)
+
+install(TARGETS testLinkOptions
+        EXPORT RequiredExp DESTINATION lib)
+export(TARGETS testLinkOptions NAMESPACE bld_ APPEND FILE ExportBuildTree.cmake)
diff --git a/Tests/ExportImport/Import/A/CMakeLists.txt b/Tests/ExportImport/Import/A/CMakeLists.txt
index 39a89dc..f8eb721 100644
--- a/Tests/ExportImport/Import/A/CMakeLists.txt
+++ b/Tests/ExportImport/Import/A/CMakeLists.txt
@@ -472,3 +472,8 @@ if (((CMAKE_C_COMPILER_ID STREQUAL GNU AND CMAKE_C_COMPILER_VERSION VERSION_GREA
     endif()
   endif()
 endif()
+
+#---------------------------------------------------------------------------------
+# check that imported libraries have the expected INTERFACE_LINK_OPTIONS property
+checkForProperty(bld_testLinkOptions "INTERFACE_LINK_OPTIONS" "INTERFACE_FLAG")
+checkForProperty(Req::testLinkOptions "INTERFACE_LINK_OPTIONS" "INTERFACE_FLAG")
diff --git a/Tests/ExportImport/Import/A/imp_testLinkOptions.cpp b/Tests/ExportImport/Import/A/imp_testLinkOptions.cpp
new file mode 100644
index 0000000..2b18b2e
--- /dev/null
+++ b/Tests/ExportImport/Import/A/imp_testLinkOptions.cpp
@@ -0,0 +1,8 @@
+
+#include "testSharedLibRequired.h"
+
+int foo()
+{
+  TestSharedLibRequired req;
+  return req.foo();
+}