Genex: $<HOST_LINK:> and $<DEVICE_LINK:> must be usable in try_compile

Fixes: #22007

5 files changed, 31 insertions, 2 deletions

diff --git a/Source/cmExportTryCompileFileGenerator.cxx b/Source/cmExportTryCompileFileGenerator.cxx
index c6b6184..cac60e1 100644
--- a/Source/cmExportTryCompileFileGenerator.cxx
+++ b/Source/cmExportTryCompileFileGenerator.cxx
@@ -3,9 +3,10 @@
 #include "cmExportTryCompileFileGenerator.h"
 
 #include <map>
-#include <memory>
 #include <utility>
 
+#include <cm/memory>
+
 #include "cmGeneratorExpression.h"
 #include "cmGeneratorExpressionDAGChecker.h"
 #include "cmGeneratorTarget.h"
@@ -66,7 +67,15 @@ std::string cmExportTryCompileFileGenerator::FindTargets(
 
   cmGeneratorExpression ge;
 
-  cmGeneratorExpressionDAGChecker dagChecker(tgt, propName, nullptr, nullptr);
+  std::unique_ptr<cmGeneratorExpressionDAGChecker> parentDagChecker;
+  if (propName == "INTERFACE_LINK_OPTIONS") {
+    // To please constraint checks of DAGChecker, this property must have
+    // LINK_OPTIONS property as parent
+    parentDagChecker = cm::make_unique<cmGeneratorExpressionDAGChecker>(
+      tgt, "LINK_OPTIONS", nullptr, nullptr);
+  }
+  cmGeneratorExpressionDAGChecker dagChecker(tgt, propName, nullptr,
+                                             parentDagChecker.get());
 
   std::unique_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(*prop);
 
diff --git a/Tests/RunCMake/GenEx-DEVICE_LINK/DEVICE_LINK-try_compile.cmake b/Tests/RunCMake/GenEx-DEVICE_LINK/DEVICE_LINK-try_compile.cmake
new file mode 100644
index 0000000..281f8aa
--- /dev/null
+++ b/Tests/RunCMake/GenEx-DEVICE_LINK/DEVICE_LINK-try_compile.cmake
@@ -0,0 +1,9 @@
+
+enable_language(C)
+
+add_library(demo INTERFACE IMPORTED)
+set_property(TARGET demo PROPERTY INTERFACE_LINK_OPTIONS "$<DEVICE_LINK:>")
+
+set(CMAKE_TRY_COMPILE_TARGET_TYPE EXECUTABLE)
+try_compile(result "${CMAKE_CURRENT_BINARY_DIR}/tc" "${CMAKE_CURRENT_SOURCE_DIR}/empty.c"
+  LINK_LIBRARIES demo)
diff --git a/Tests/RunCMake/GenEx-DEVICE_LINK/RunCMakeTest.cmake b/Tests/RunCMake/GenEx-DEVICE_LINK/RunCMakeTest.cmake
index 1e44601..80633e2 100644
--- a/Tests/RunCMake/GenEx-DEVICE_LINK/RunCMakeTest.cmake
+++ b/Tests/RunCMake/GenEx-DEVICE_LINK/RunCMakeTest.cmake
@@ -12,6 +12,7 @@ run_cmake(DEVICE_LINK-target_compile_options)
 run_cmake(DEVICE_LINK-target_include_directories)
 run_cmake(DEVICE_LINK-target_link_libraries)
 run_cmake(DEVICE_LINK-target_link_directories)
+run_cmake(DEVICE_LINK-try_compile)
 if(RunCMake_GENERATOR MATCHES "(Ninja|Makefile)")
   run_cmake(DEVICE_LINK-link_depends)
 endif()
diff --git a/Tests/RunCMake/GenEx-HOST_LINK/HOST_LINK-try_compile.cmake b/Tests/RunCMake/GenEx-HOST_LINK/HOST_LINK-try_compile.cmake
new file mode 100644
index 0000000..f221ff1
--- /dev/null
+++ b/Tests/RunCMake/GenEx-HOST_LINK/HOST_LINK-try_compile.cmake
@@ -0,0 +1,9 @@
+
+enable_language(C)
+
+add_library(demo INTERFACE IMPORTED)
+set_property(TARGET demo PROPERTY INTERFACE_LINK_OPTIONS "$<HOST_LINK:>")
+
+set(CMAKE_TRY_COMPILE_TARGET_TYPE EXECUTABLE)
+try_compile(result "${CMAKE_CURRENT_BINARY_DIR}/tc" "${CMAKE_CURRENT_SOURCE_DIR}/empty.c"
+  LINK_LIBRARIES demo)
diff --git a/Tests/RunCMake/GenEx-HOST_LINK/RunCMakeTest.cmake b/Tests/RunCMake/GenEx-HOST_LINK/RunCMakeTest.cmake
index 329a7c6..9e3eeec 100644
--- a/Tests/RunCMake/GenEx-HOST_LINK/RunCMakeTest.cmake
+++ b/Tests/RunCMake/GenEx-HOST_LINK/RunCMakeTest.cmake
@@ -12,6 +12,7 @@ run_cmake(HOST_LINK-target_compile_options)
 run_cmake(HOST_LINK-target_include_directories)
 run_cmake(HOST_LINK-target_link_libraries)
 run_cmake(HOST_LINK-target_link_directories)
+run_cmake(HOST_LINK-try_compile)
 if(RunCMake_GENERATOR MATCHES "(Ninja|Makefile)")
   run_cmake(HOST_LINK-link_depends)
 endif()