Genex: Add $<LINK_LANGUAGE:...> and $<LINK_LANG_AND_ID:...>

This MR may help to solve issues #19757 and #18008

Fixes: #19965

18 files changed, 139 insertions, 2 deletions

diff --git a/Tests/RunCMake/target_link_directories/CMP0099.cmake b/Tests/RunCMake/target_link_directories/CMP0099.cmake
index a2be279..aff1e33 100644
--- a/Tests/RunCMake/target_link_directories/CMP0099.cmake
+++ b/Tests/RunCMake/target_link_directories/CMP0099.cmake
@@ -5,7 +5,7 @@ set(CMAKE_VERBOSE_MAKEFILE TRUE)
 set(CMAKE_C_USE_RESPONSE_FILE_FOR_LIBRARIES FALSE)
 
 add_library(LinkDirs_interface INTERFACE)
-target_link_directories (LinkDirs_interface INTERFACE "/DIR_INTERFACE"})
+target_link_directories (LinkDirs_interface INTERFACE "/DIR_INTERFACE")
 
 add_library(LinkDirs_static STATIC lib.c)
 target_link_libraries (LinkDirs_static PRIVATE LinkDirs_interface)
diff --git a/Tests/RunCMake/target_link_directories/RunCMakeTest.cmake b/Tests/RunCMake/target_link_directories/RunCMakeTest.cmake
index a74ee25..699e871 100644
--- a/Tests/RunCMake/target_link_directories/RunCMakeTest.cmake
+++ b/Tests/RunCMake/target_link_directories/RunCMakeTest.cmake
@@ -21,10 +21,21 @@ if(RunCMake_GENERATOR MATCHES "(Ninja|Makefiles)" AND
     set(VERBOSE -- -v)
   endif()
 
+  run_cmake(genex_LINK_LANGUAGE)
+  run_cmake_target(genex_LINK_LANGUAGE interface LinkDirs_exe_interface --config Release ${VERBOSE})
+  run_cmake_target(genex_LINK_LANGUAGE basic LinkDirs_exe_c --config Release ${VERBOSE})
+  run_cmake_target(genex_LINK_LANGUAGE LINKER_LANGUAGE LinkDirs_exe_cxx --config Release ${VERBOSE})
+
+  run_cmake(genex_LINK_LANG_AND_ID)
+
+  run_cmake_target(genex_LINK_LANG_AND_ID interface LinkDirs_exe_interface --config Release ${VERBOSE})
+  run_cmake_target(genex_LINK_LANG_AND_ID basic LinkDirs_exe_c --config Release ${VERBOSE})
+  run_cmake_target(genex_LINK_LANG_AND_ID LINKER_LANGUAGE LinkDirs_exe_cxx --config Release ${VERBOSE})
+
+
   run_cmake(CMP0099-NEW)
   run_cmake_target(CMP0099-NEW basic LinkDirs_exe ${VERBOSE})
 
-
   run_cmake(CMP0099-OLD)
   run_cmake_target(CMP0099-OLD basic LinkDirs_exe ${VERBOSE})
 
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-LINKER_LANGUAGE-check.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-LINKER_LANGUAGE-check.cmake
new file mode 100644
index 0000000..aa39810
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-LINKER_LANGUAGE-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG CXX)
+set (INVALID_LANG C)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-LINKER_LANGUAGE-result.txt b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-LINKER_LANGUAGE-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-LINKER_LANGUAGE-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-basic-check.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-basic-check.cmake
new file mode 100644
index 0000000..71f641d
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-basic-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-basic-result.txt b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-basic-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-basic-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-interface-check.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-interface-check.cmake
new file mode 100644
index 0000000..8313de6
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-interface-check.cmake
@@ -0,0 +1,4 @@
+
+set (TYPE INTERFACE)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-interface-result.txt b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-interface-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-interface-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-validation.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-validation.cmake
new file mode 100644
index 0000000..298564e
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE-validation.cmake
@@ -0,0 +1,20 @@
+
+if (NOT VALID_LANG)
+  set (VALID_LANG C)
+endif()
+if (NOT INVALID_LANG)
+  set (INVALID_LANG CXX)
+endif()
+if (NOT TYPE)
+  set (TYPE EXE)
+endif()
+
+if (NOT actual_stdout MATCHES "DIR_${VALID_LANG}_${TYPE}")
+  set (RunCMake_TEST_FAILED "Not found expected 'DIR_${VALID_LANG}_${TYPE}'.")
+endif()
+if (actual_stdout MATCHES "DIR_${INVALID_LANG}_${TYPE}")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'DIR_${INVALID_LANG}_${TYPE}'.")
+endif()
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE.cmake
new file mode 100644
index 0000000..1f266b1
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANGUAGE.cmake
@@ -0,0 +1,23 @@
+
+enable_language(C)
+enable_language(CXX)
+
+set(CMAKE_VERBOSE_MAKEFILE TRUE)
+set(CMAKE_C_USE_RESPONSE_FILE_FOR_LIBRARIES FALSE)
+set(CMAKE_CXX_USE_RESPONSE_FILE_FOR_LIBRARIES FALSE)
+
+add_library(LinkDirs_interface INTERFACE)
+target_link_directories (LinkDirs_interface INTERFACE "$<$<LINK_LANGUAGE:C>:/DIR_C_INTERFACE>"
+                                                      "$<$<LINK_LANGUAGE:CXX>:/DIR_CXX_INTERFACE>")
+
+add_executable(LinkDirs_exe_interface exe.c)
+target_link_libraries (LinkDirs_exe_interface PRIVATE LinkDirs_interface)
+
+add_executable(LinkDirs_exe_c exe.c)
+target_link_directories (LinkDirs_exe_c PRIVATE "$<$<LINK_LANGUAGE:C>:/DIR_C_EXE>"
+                                                "$<$<LINK_LANGUAGE:CXX>:/DIR_CXX_EXE>")
+
+add_executable(LinkDirs_exe_cxx exe.c)
+target_link_directories (LinkDirs_exe_cxx PRIVATE "$<$<LINK_LANGUAGE:C>:/DIR_C_EXE>"
+                                                 "$<$<LINK_LANGUAGE:CXX>:/DIR_CXX_EXE>")
+set_property (TARGET LinkDirs_exe_cxx PROPERTY LINKER_LANGUAGE CXX)
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-check.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-check.cmake
new file mode 100644
index 0000000..ed4f851
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG CXX)
+set (INVALID_LANG C)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-result.txt b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-basic-check.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-basic-check.cmake
new file mode 100644
index 0000000..6bddee1
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-basic-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-basic-result.txt b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-basic-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-basic-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-interface-check.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-interface-check.cmake
new file mode 100644
index 0000000..a328738
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-interface-check.cmake
@@ -0,0 +1,4 @@
+
+set (TYPE INTERFACE)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-interface-result.txt b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-interface-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-interface-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-validation.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-validation.cmake
new file mode 100644
index 0000000..9872953
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID-validation.cmake
@@ -0,0 +1,26 @@
+
+if (NOT VALID_LANG)
+  set (VALID_LANG C)
+endif()
+if (NOT INVALID_LANG)
+  set (INVALID_LANG CXX)
+endif()
+if (NOT TYPE)
+  set (TYPE EXE)
+endif()
+
+if (NOT actual_stdout MATCHES "DIR_${VALID_LANG}_${TYPE}")
+  set (RunCMake_TEST_FAILED "Not found expected 'DIR_${VALID_LANG}_${TYPE}'.\n")
+endif()
+if (actual_stdout MATCHES "DIR_${INVALID_LANG}_${TYPE}")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'DIR_${INVALID_LANG}_${TYPE} '.")
+endif()
+if (actual_stdout MATCHES "DIR_(${VALID_LANG}|${INVALID_LANG})_BADID_${TYPE}")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'DIR_(${VALID_LANG}|${INVALID_LANG})_BADID_${TYPE}'.")
+endif()
diff --git a/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID.cmake b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID.cmake
new file mode 100644
index 0000000..eb3b342
--- /dev/null
+++ b/Tests/RunCMake/target_link_directories/genex_LINK_LANG_AND_ID.cmake
@@ -0,0 +1,29 @@
+
+enable_language(C)
+enable_language(CXX)
+
+set(CMAKE_VERBOSE_MAKEFILE TRUE)
+set(CMAKE_C_USE_RESPONSE_FILE_FOR_LIBRARIES FALSE)
+set(CMAKE_CXX_USE_RESPONSE_FILE_FOR_LIBRARIES FALSE)
+
+add_library(LinkDirs_interface INTERFACE)
+target_link_directories (LinkDirs_interface INTERFACE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:/DIR_C_INTERFACE>
+                                                      $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:/DIR_CXX_INTERFACE>
+                                                      $<$<LINK_LANG_AND_ID:C,BADID>:/DIR_C_BADID_INTERFACE>
+                                                      $<$<LINK_LANG_AND_ID:CXX,BADID>:/DIR_CXX_BADID_INTERFACE>)
+
+add_executable(LinkDirs_exe_interface exe.c)
+target_link_libraries (LinkDirs_exe_interface PRIVATE LinkDirs_interface)
+
+add_executable(LinkDirs_exe_c exe.c)
+target_link_options (LinkDirs_exe_c PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:/DIR_C_EXE>
+                                            $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:/DIR_CXX_EXE>
+                                            $<$<LINK_LANG_AND_ID:C,BADID>:/DIR_C_BADID_EXE>
+                                            $<$<LINK_LANG_AND_ID:CXX,BADID>:/DIR_CXX_BADID_EXE>)
+
+add_executable(LinkDirs_exe_cxx exe.c)
+target_link_directories (LinkDirs_exe_cxx PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:/DIR_C_EXE>
+                                                  $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:/DIR_CXX_EXE>
+                                                  $<$<LINK_LANG_AND_ID:C,BADID>:/DIR_C_BADID_EXE>
+                                                  $<$<LINK_LANG_AND_ID:CXX,BADID>:/DIR_CXX_BADID_EXE>)
+set_property (TARGET LinkDirs_exe_cxx PROPERTY LINKER_LANGUAGE CXX)