init

cmake/target_link_options_if_exists.cmake

@@ -0,0 +1,43 @@
+# This file is part of Desktop App Toolkit,
+# a set of libraries for developing nice desktop applications.
+#
+# For license and copyright information please follow this link:
+# https://github.com/desktop-app/legal/blob/master/LEGAL
+
+include(CheckLinkerFlag)
+
+function(target_link_options_if_exists target_name)
+    set(writing_now "")
+    set(private_options "")
+    set(public_options "")
+    set(interface_options "")
+    foreach (entry ${ARGN})
+        if (${entry} STREQUAL "PRIVATE" OR ${entry} STREQUAL "PUBLIC" OR ${entry} STREQUAL "INTERFACE")
+            set(writing_now ${entry})
+        else()
+            string(MAKE_C_IDENTIFIER ${entry} entry_identifier)
+            check_linker_flag(CXX ${entry} DESKTOP_APP_${entry_identifier}_EXISTS)
+            if (DESKTOP_APP_${entry_identifier}_EXISTS)
+                if ("${writing_now}" STREQUAL "PRIVATE")
+                    list(APPEND private_options ${entry})
+                elseif ("${writing_now}" STREQUAL "PUBLIC")
+                    list(APPEND public_options ${entry})
+                elseif ("${writing_now}" STREQUAL "INTERFACE")
+                    list(APPEND interface_options ${entry})
+                else()
+                    message(FATAL_ERROR "Unknown options scope for target ${target_name}")
+                endif()
+            endif()
+        endif()
+    endforeach()
+
+    if (NOT "${public_options}" STREQUAL "")
+        target_link_options(${target_name} PUBLIC ${public_options})
+    endif()
+    if (NOT "${private_options}" STREQUAL "")
+        target_link_options(${target_name} PRIVATE ${private_options})
+    endif()
+    if (NOT "${interface_options}" STREQUAL "")
+        target_link_options(${target_name} INTERFACE ${interface_options})
+    endif()
+endfunction()