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

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

Fixes: #19965

170 files changed, 1156 insertions, 8 deletions

diff --git a/Tests/BuildDepends/CMakeLists.txt b/Tests/BuildDepends/CMakeLists.txt
index c1ad17c..5ddae83 100644
--- a/Tests/BuildDepends/CMakeLists.txt
+++ b/Tests/BuildDepends/CMakeLists.txt
@@ -368,6 +368,28 @@ is not newer than dependency
   ${TEST_LINK_DEPENDS}
 ")
   endif()
+
+  set(linkdep3 ${BuildDepends_BINARY_DIR}/Project/linkdep3${CMAKE_EXECUTABLE_SUFFIX})
+  if(${linkdep3} IS_NEWER_THAN ${TEST_LINK_DEPENDS})
+    message("$<LINK_LANGUAGE> in LINK_DEPENDS worked")
+  else()
+    message(SEND_ERROR "$<LINK_LANGUAGE> in LINK_DEPENDS failed.  Executable
+  ${linkdep3}
+is not newer than dependency
+  ${TEST_LINK_DEPENDS}
+")
+  endif()
+
+  set(linkdep4 ${BuildDepends_BINARY_DIR}/Project/linkdep4${CMAKE_EXECUTABLE_SUFFIX})
+  if(${linkdep4} IS_NEWER_THAN ${TEST_LINK_DEPENDS})
+    message("$<LINK_LANGUAGE> in INTERFACE_LINK_DEPENDS worked")
+  else()
+    message(SEND_ERROR "$<LINK_LANGUAGE> in INTERFACE_LINK_DEPENDS failed.  Executable
+  ${linkdep4}
+is not newer than dependency
+  ${TEST_LINK_DEPENDS}
+")
+  endif()
 endif()
 
 if(EXISTS "${link_depends_no_shared_check_txt}")
diff --git a/Tests/BuildDepends/Project/CMakeLists.txt b/Tests/BuildDepends/Project/CMakeLists.txt
index 8338800..83583c9 100644
--- a/Tests/BuildDepends/Project/CMakeLists.txt
+++ b/Tests/BuildDepends/Project/CMakeLists.txt
@@ -118,6 +118,14 @@ if(TEST_LINK_DEPENDS)
   set_property(TARGET foo_interface PROPERTY INTERFACE_LINK_DEPENDS $<1:${TEST_LINK_DEPENDS}>)
   add_executable(linkdep2 linkdep.cxx)
   target_link_libraries(linkdep2 PRIVATE foo_interface)
+
+  add_executable(linkdep3 linkdep.cxx)
+  set_property(TARGET linkdep3 PROPERTY LINK_DEPENDS $<$<LINK_LANGUAGE:CXX>:${TEST_LINK_DEPENDS}>)
+
+  add_library(foo_interface2 INTERFACE)
+  set_property(TARGET foo_interface2 PROPERTY INTERFACE_LINK_DEPENDS $<$<LINK_LANGUAGE:CXX>:${TEST_LINK_DEPENDS}>)
+  add_executable(linkdep4 linkdep.cxx)
+  target_link_libraries(linkdep4 PRIVATE foo_interface2)
 endif()
 
 add_library(link_depends_no_shared_lib SHARED link_depends_no_shared_lib.c
diff --git a/Tests/RunCMake/Languages/LINK_LANGUAGE-genex-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_command-result.txt
index d00491f..d00491f 100644
--- a/Tests/RunCMake/Languages/LINK_LANGUAGE-genex-result.txt
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_command-result.txt
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_command-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_command-stderr.txt
new file mode 100644
index 0000000..0b0d458
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_command-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-add_custom_command.cmake:2 \(add_custom_command\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_command.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_command.cmake
new file mode 100644
index 0000000..a378c1c
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_command.cmake
@@ -0,0 +1,4 @@
+add_custom_target(drive)
+add_custom_command(TARGET drive PRE_BUILD
+  COMMAND ${CMAKE_COMMAND} -E echo $<LINK_LANGUAGE>
+)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_target-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_target-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_target-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_target-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_target-stderr.txt
new file mode 100644
index 0000000..92da634
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_target-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-add_custom_target.cmake:1 \(add_custom_target\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_target.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_target.cmake
new file mode 100644
index 0000000..60b6c75
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_custom_target.cmake
@@ -0,0 +1,3 @@
+add_custom_target(drive
+  COMMAND ${CMAKE_COMMAND} -E echo $<LINK_LANGUAGE>
+)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_executable-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_executable-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_executable-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_executable-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_executable-stderr.txt
new file mode 100644
index 0000000..3bdc8e4
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_executable-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-add_executable.cmake:1 \(add_executable\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_executable.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_executable.cmake
new file mode 100644
index 0000000..2176b39
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_executable.cmake
@@ -0,0 +1 @@
+add_executable(empty empty.$<LINK_LANGUAGE>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_library-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_library-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_library-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_library-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_library-stderr.txt
new file mode 100644
index 0000000..1bacdeb
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_library-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-add_library.cmake:1 \(add_library\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_library.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_library.cmake
new file mode 100644
index 0000000..253f82a
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_library.cmake
@@ -0,0 +1 @@
+add_library(empty empty.$<LINK_LANGUAGE>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_test-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_test-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_test-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_test-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_test-stderr.txt
new file mode 100644
index 0000000..f22efde
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_test-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-add_test.cmake:5 \(add_test\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_test.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_test.cmake
new file mode 100644
index 0000000..4fd547d
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-add_test.cmake
@@ -0,0 +1,5 @@
+
+include(CTest)
+enable_testing()
+
+add_test(NAME dummy COMMAND ${CMAKE_COMMAND} -E echo $<LINK_LANGUAGE>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-file_generate-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-file_generate-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-file_generate-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-file_generate-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-file_generate-stderr.txt
new file mode 100644
index 0000000..21d26de
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-file_generate-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-file_generate.cmake:3 \(file\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-file_generate.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-file_generate.cmake
new file mode 100644
index 0000000..519b883
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-file_generate.cmake
@@ -0,0 +1,6 @@
+enable_language(CXX C)
+
+file(GENERATE
+  OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/output.txt
+  CONTENT "LANG_IS_$<LINK_LANGUAGE>\n"
+)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-install-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-install-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-install-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-install-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-install-stderr.txt
new file mode 100644
index 0000000..73afc33
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-install-stderr.txt
@@ -0,0 +1,10 @@
+CMake Error:
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+
+
+CMake Generate step failed.  Build files cannot be regenerated correctly.
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-install.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-install.cmake
new file mode 100644
index 0000000..533c0b4
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-install.cmake
@@ -0,0 +1,5 @@
+
+install(FILES
+  empty.$<LINK_LANGUAGE>
+  DESTINATION src
+)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-target_sources-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-target_sources-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-target_sources-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-target_sources-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-target_sources-stderr.txt
new file mode 100644
index 0000000..d8121cc
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-target_sources-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-target_sources.cmake:2 \(target_sources\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-target_sources.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-target_sources.cmake
new file mode 100644
index 0000000..c134c01
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-target_sources.cmake
@@ -0,0 +1,2 @@
+add_library(empty)
+target_sources(empty PRIVATE empty.$<LINK_LANGUAGE>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-unknown-lang.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-unknown-lang.cmake
new file mode 100644
index 0000000..0ba472d
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-unknown-lang.cmake
@@ -0,0 +1,4 @@
+
+enable_language(C)
+add_executable(empty empty.c)
+target_link_options(empty PRIVATE $<$<LINK_LANGUAGE:CXX>:$<TARGET_EXISTS:too,many,parameters>>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage1-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage1-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage1-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage1-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage1-stderr.txt
new file mode 100644
index 0000000..1e3a83b
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage1-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-wrong-usage1.cmake:4 \(target_compile_definitions\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE:C>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage1.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage1.cmake
new file mode 100644
index 0000000..90b7ce0
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage1.cmake
@@ -0,0 +1,4 @@
+
+enable_language(C)
+add_executable(empty empty.c)
+target_compile_definitions(empty PRIVATE $<$<LINK_LANGUAGE:C>:DEF>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage2-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage2-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage2-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage2-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage2-stderr.txt
new file mode 100644
index 0000000..7fe4310
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage2-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-wrong-usage2.cmake:4 \(target_compile_options\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE:C>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage2.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage2.cmake
new file mode 100644
index 0000000..e761897
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage2.cmake
@@ -0,0 +1,4 @@
+
+enable_language(C)
+add_executable(empty empty.c)
+target_compile_options(empty PRIVATE $<$<LINK_LANGUAGE:C>:-OPT>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage3-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage3-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage3-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage3-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage3-stderr.txt
new file mode 100644
index 0000000..cb20e99
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage3-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANGUAGE-wrong-usage3.cmake:4 \(target_include_directories\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE:C>
+
+  \$<LINK_LANGUAGE:...> may only be used with binary targets to specify link
+  libraries, link directories, link options and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage3.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage3.cmake
new file mode 100644
index 0000000..96a72a1
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage3.cmake
@@ -0,0 +1,4 @@
+
+enable_language(C)
+add_executable(empty empty.c)
+target_include_directories(empty PRIVATE $<$<LINK_LANGUAGE:C>:/DIR>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage4-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage4-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage4-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage4-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage4-stderr.txt
new file mode 100644
index 0000000..ee36912
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage4-stderr.txt
@@ -0,0 +1,8 @@
+CMake Error at LINK_LANGUAGE-wrong-usage4.cmake:7 \(target_link_libraries\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE> is not supported in link libraries expression.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage4.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage4.cmake
new file mode 100644
index 0000000..3ecaabb
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANGUAGE-wrong-usage4.cmake
@@ -0,0 +1,7 @@
+
+enable_language(C)
+
+add_library(libC empty.c)
+
+add_executable(empty empty.c)
+target_link_libraries(empty PRIVATE lib$<LINK_LANGUAGE>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_command-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_command-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_command-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_command-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_command-stderr.txt
new file mode 100644
index 0000000..2ff62bc
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_command-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANG_AND_ID-add_custom_command.cmake:2 \(add_custom_command\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:LANG,ID>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_command.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_command.cmake
new file mode 100644
index 0000000..9df9232
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_command.cmake
@@ -0,0 +1,4 @@
+add_custom_target(drive)
+add_custom_command(TARGET drive PRE_BUILD
+  COMMAND ${CMAKE_COMMAND} -E echo $<LINK_LANG_AND_ID:LANG,ID>
+)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_target-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_target-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_target-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_target-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_target-stderr.txt
new file mode 100644
index 0000000..0749c44
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_target-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANG_AND_ID-add_custom_target.cmake:2 \(add_custom_target\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:LANG,ID>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_target.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_target.cmake
new file mode 100644
index 0000000..e5f76bc
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_custom_target.cmake
@@ -0,0 +1,4 @@
+
+add_custom_target(drive
+  COMMAND ${CMAKE_COMMAND} -E echo $<LINK_LANG_AND_ID:LANG,ID>
+)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_executable-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_executable-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_executable-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_executable-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_executable-stderr.txt
new file mode 100644
index 0000000..595312a
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_executable-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANG_AND_ID-add_executable.cmake:1 \(add_executable\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:C,MSVC>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_executable.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_executable.cmake
new file mode 100644
index 0000000..4d6c674
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_executable.cmake
@@ -0,0 +1,5 @@
+add_executable(empty main.c
+        $<$<LINK_LANG_AND_ID:C,MSVC>:empty.c>
+        $<$<LINK_LANG_AND_ID:C,GNU>:empty2.c>
+        $<$<LINK_LANG_AND_ID:C,Clang>:empty3.c>
+        )
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_library-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_library-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_library-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_library-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_library-stderr.txt
new file mode 100644
index 0000000..be46e28
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_library-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANG_AND_ID-add_library.cmake:2 \(add_library\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:C,MSVC>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_library.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_library.cmake
new file mode 100644
index 0000000..a8199cf
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_library.cmake
@@ -0,0 +1,2 @@
+
+add_library(empty empty.$<LINK_LANG_AND_ID:C,MSVC>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_test-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_test-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_test-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_test-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_test-stderr.txt
new file mode 100644
index 0000000..2a29492
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_test-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANG_AND_ID-add_test.cmake:5 \(add_test\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:CXX,GNU>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_test.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_test.cmake
new file mode 100644
index 0000000..fd700d7
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-add_test.cmake
@@ -0,0 +1,5 @@
+
+include(CTest)
+enable_testing()
+
+add_test(NAME dummy COMMAND ${CMAKE_COMMAND} -E echo $<LINK_LANG_AND_ID:CXX,GNU>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-file_generate-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-file_generate-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-file_generate-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-file_generate-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-file_generate-stderr.txt
new file mode 100644
index 0000000..e57b55c
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-file_generate-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANG_AND_ID-file_generate.cmake:3 \(file\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:C,GNU>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-file_generate.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-file_generate.cmake
new file mode 100644
index 0000000..67c1bda
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-file_generate.cmake
@@ -0,0 +1,6 @@
+enable_language(CXX C)
+
+file(GENERATE
+  OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/output.txt
+  CONTENT "LANG_IS_$<$<LINK_LANG_AND_ID:C,GNU>:C>\n"
+)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-install-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-install-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-install-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-install-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-install-stderr.txt
new file mode 100644
index 0000000..965f974
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-install-stderr.txt
@@ -0,0 +1,10 @@
+CMake Error:
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:C,MSVC>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+
+
+CMake Generate step failed.  Build files cannot be regenerated correctly.
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-install.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-install.cmake
new file mode 100644
index 0000000..b8f9323
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-install.cmake
@@ -0,0 +1,5 @@
+
+install(FILES
+  empty.$<LINK_LANG_AND_ID:C,MSVC>
+  DESTINATION src
+)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-target_sources-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-target_sources-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-target_sources-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-target_sources-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-target_sources-stderr.txt
new file mode 100644
index 0000000..e86602a
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-target_sources-stderr.txt
@@ -0,0 +1,8 @@
+CMake Error at LINK_LANG_AND_ID-target_sources.cmake:2 \(target_sources\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID>
+
+  \$<LINK_LANG_AND_ID> expression requires at least two parameters.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-target_sources.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-target_sources.cmake
new file mode 100644
index 0000000..da5faf4
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-target_sources.cmake
@@ -0,0 +1,2 @@
+add_library(empty)
+target_sources(empty PRIVATE empty.$<LINK_LANG_AND_ID>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-unknown-lang.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-unknown-lang.cmake
new file mode 100644
index 0000000..99dd337
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-unknown-lang.cmake
@@ -0,0 +1,4 @@
+
+enable_language(C)
+add_executable(empty empty.c)
+target_link_options(empty PRIVATE $<$<LINK_LANG_AND_ID:CXX,GNU>:$<TARGET_EXISTS:too,many,parameters>>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage1-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage1-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage1-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage1-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage1-stderr.txt
new file mode 100644
index 0000000..95611c3
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage1-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANG_AND_ID-wrong-usage1.cmake:4 \(target_compile_definitions\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:C,GNU>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage1.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage1.cmake
new file mode 100644
index 0000000..e58e3b44
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage1.cmake
@@ -0,0 +1,4 @@
+
+enable_language(C)
+add_executable(empty empty.c)
+target_compile_definitions(empty PRIVATE $<$<LINK_LANG_AND_ID:C,GNU>:DEF>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage2-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage2-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage2-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage2-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage2-stderr.txt
new file mode 100644
index 0000000..53bdcb2
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage2-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANG_AND_ID-wrong-usage2.cmake:4 \(target_compile_options\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:C,GNU>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage2.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage2.cmake
new file mode 100644
index 0000000..998daa9
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage2.cmake
@@ -0,0 +1,4 @@
+
+enable_language(C)
+add_executable(empty empty.c)
+target_compile_options(empty PRIVATE $<$<LINK_LANG_AND_ID:C,GNU>:-OPT>)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage3-result.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage3-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage3-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage3-stderr.txt b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage3-stderr.txt
new file mode 100644
index 0000000..a34a2ea
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage3-stderr.txt
@@ -0,0 +1,9 @@
+CMake Error at LINK_LANG_AND_ID-wrong-usage3.cmake:4 \(target_include_directories\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANG_AND_ID:C,GNU>
+
+  \$<LINK_LANG_AND_ID:lang,id> may only be used with binary targets to specify
+  link libraries, link directories, link options, and link depends.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage3.cmake b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage3.cmake
new file mode 100644
index 0000000..0543056
--- /dev/null
+++ b/Tests/RunCMake/GeneratorExpression/LINK_LANG_AND_ID-wrong-usage3.cmake
@@ -0,0 +1,4 @@
+
+enable_language(C)
+add_executable(empty empty.c)
+target_include_directories(empty PRIVATE $<$<LINK_LANG_AND_ID:C,GNU>:/DIR>)
diff --git a/Tests/RunCMake/GeneratorExpression/RunCMakeTest.cmake b/Tests/RunCMake/GeneratorExpression/RunCMakeTest.cmake
index 68a0172..6550f84 100644
--- a/Tests/RunCMake/GeneratorExpression/RunCMakeTest.cmake
+++ b/Tests/RunCMake/GeneratorExpression/RunCMakeTest.cmake
@@ -39,6 +39,31 @@ run_cmake(COMPILE_LANG_AND_ID-add_executable)
 run_cmake(COMPILE_LANG_AND_ID-add_library)
 run_cmake(COMPILE_LANG_AND_ID-add_test)
 run_cmake(COMPILE_LANG_AND_ID-unknown-lang)
+run_cmake(LINK_LANGUAGE-add_custom_target)
+run_cmake(LINK_LANGUAGE-add_custom_command)
+run_cmake(LINK_LANGUAGE-install)
+run_cmake(LINK_LANGUAGE-target_sources)
+run_cmake(LINK_LANGUAGE-add_executable)
+run_cmake(LINK_LANGUAGE-add_library)
+run_cmake(LINK_LANGUAGE-add_test)
+run_cmake(LINK_LANGUAGE-unknown-lang)
+run_cmake(LINK_LANGUAGE-wrong-usage1)
+run_cmake(LINK_LANGUAGE-wrong-usage2)
+run_cmake(LINK_LANGUAGE-wrong-usage3)
+run_cmake(LINK_LANGUAGE-wrong-usage4)
+run_cmake(LINK_LANGUAGE-file_generate)
+run_cmake(LINK_LANG_AND_ID-add_custom_target)
+run_cmake(LINK_LANG_AND_ID-add_custom_command)
+run_cmake(LINK_LANG_AND_ID-install)
+run_cmake(LINK_LANG_AND_ID-target_sources)
+run_cmake(LINK_LANG_AND_ID-add_executable)
+run_cmake(LINK_LANG_AND_ID-add_library)
+run_cmake(LINK_LANG_AND_ID-add_test)
+run_cmake(LINK_LANG_AND_ID-unknown-lang)
+run_cmake(LINK_LANG_AND_ID-wrong-usage1)
+run_cmake(LINK_LANG_AND_ID-wrong-usage2)
+run_cmake(LINK_LANG_AND_ID-wrong-usage3)
+run_cmake(LINK_LANG_AND_ID-file_generate)
 run_cmake(TARGET_FILE-recursion)
 run_cmake(OUTPUT_NAME-recursion)
 run_cmake(TARGET_FILE_PREFIX)
diff --git a/Tests/RunCMake/Languages/LINKER_LANGUAGE-genex-result.txt b/Tests/RunCMake/Languages/LINKER_LANGUAGE-genex-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/Languages/LINKER_LANGUAGE-genex-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/Languages/LINK_LANGUAGE-genex-stderr.txt b/Tests/RunCMake/Languages/LINKER_LANGUAGE-genex-stderr.txt
index 03c002e..7abf76a 100644
--- a/Tests/RunCMake/Languages/LINK_LANGUAGE-genex-stderr.txt
+++ b/Tests/RunCMake/Languages/LINKER_LANGUAGE-genex-stderr.txt
@@ -1,4 +1,4 @@
-CMake Error at LINK_LANGUAGE-genex.cmake:[0-9]+ \(target_link_libraries\):
+CMake Error at LINKER_LANGUAGE-genex.cmake:[0-9]+ \(target_link_libraries\):
   Error evaluating generator expression:
 
     \$<TARGET_PROPERTY:LINKER_LANGUAGE>
diff --git a/Tests/RunCMake/Languages/LINK_LANGUAGE-genex.cmake b/Tests/RunCMake/Languages/LINKER_LANGUAGE-genex.cmake
index 64f394c..64f394c 100644
--- a/Tests/RunCMake/Languages/LINK_LANGUAGE-genex.cmake
+++ b/Tests/RunCMake/Languages/LINKER_LANGUAGE-genex.cmake
diff --git a/Tests/RunCMake/Languages/RunCMakeTest.cmake b/Tests/RunCMake/Languages/RunCMakeTest.cmake
index 2a534b3..48216e9 100644
--- a/Tests/RunCMake/Languages/RunCMakeTest.cmake
+++ b/Tests/RunCMake/Languages/RunCMakeTest.cmake
@@ -1,7 +1,7 @@
 include(RunCMake)
 
 run_cmake(NoLangSHARED)
-run_cmake(LINK_LANGUAGE-genex)
+run_cmake(LINKER_LANGUAGE-genex)
 run_cmake(link-libraries-TARGET_FILE-genex)
 run_cmake(link-libraries-TARGET_FILE-genex-ok)
 
diff --git a/Tests/RunCMake/add_link_options/GENEX_LINK_LANG.cmake b/Tests/RunCMake/add_link_options/GENEX_LINK_LANG.cmake
new file mode 100644
index 0000000..cc4ce4c
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/GENEX_LINK_LANG.cmake
@@ -0,0 +1,16 @@
+
+enable_language(C)
+
+set(obj "${CMAKE_C_OUTPUT_EXTENSION}")
+if(BORLAND)
+  set(pre -)
+endif()
+
+add_link_options ($<$<LINK_LANGUAGE:C>:${pre}BADFLAG_LANG_C${obj}>
+                  $<$<LINK_LANGUAGE:CXX>:${pre}BADFLAG_LANG_CXX${obj}>)
+
+add_library(LinkOptions_shared SHARED LinkOptionsLib.c)
+
+add_library(LinkOptions_mod MODULE LinkOptionsLib.c)
+
+add_executable(LinkOptions_exe LinkOptionsExe.c)
diff --git a/Tests/RunCMake/add_link_options/LINKER_expansion-validation.cmake b/Tests/RunCMake/add_link_options/LINKER_expansion-validation.cmake
index bebd6c7..ece3ba0 100644
--- a/Tests/RunCMake/add_link_options/LINKER_expansion-validation.cmake
+++ b/Tests/RunCMake/add_link_options/LINKER_expansion-validation.cmake
@@ -11,5 +11,8 @@ endif()
 file(READ "${RunCMake_TEST_BINARY_DIR}/LINKER.txt" linker_flag)
 
 if (NOT actual_stdout MATCHES "${linker_flag}")
-  set (RunCMake_TEST_FAILED "LINKER: was not expanded correctly.")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "LINKER: was not expanded correctly.")
 endif()
diff --git a/Tests/RunCMake/add_link_options/LINK_OPTIONS-exe-check.cmake b/Tests/RunCMake/add_link_options/LINK_OPTIONS-exe-check.cmake
index 4a22d7e..127a2f5 100644
--- a/Tests/RunCMake/add_link_options/LINK_OPTIONS-exe-check.cmake
+++ b/Tests/RunCMake/add_link_options/LINK_OPTIONS-exe-check.cmake
@@ -3,5 +3,8 @@ if (NOT actual_stdout MATCHES "BADFLAG_EXECUTABLE_RELEASE")
   set (RunCMake_TEST_FAILED "Not found expected 'BADFLAG_EXECUTABLE_RELEASE'.")
 endif()
 if (actual_stdout MATCHES "BADFLAG_(SHARED|MODULE)_RELEASE")
-  set (RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_(SHARED|MODULE)_RELEASE'.")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_(SHARED|MODULE)_RELEASE'.")
 endif()
diff --git a/Tests/RunCMake/add_link_options/LINK_OPTIONS-mod-check.cmake b/Tests/RunCMake/add_link_options/LINK_OPTIONS-mod-check.cmake
index d695761..874e0ad 100644
--- a/Tests/RunCMake/add_link_options/LINK_OPTIONS-mod-check.cmake
+++ b/Tests/RunCMake/add_link_options/LINK_OPTIONS-mod-check.cmake
@@ -3,5 +3,8 @@ if (NOT actual_stdout MATCHES "BADFLAG_MODULE_RELEASE")
   set (RunCMake_TEST_FAILED "Not found expected 'BADFLAG_MODULE_RELEASE'.")
 endif()
 if (actual_stdout MATCHES "BADFLAG_(SHARED|EXECUTABLE)_RELEASE")
-  set (RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_(SHARED|EXECUTABLE)_RELEASE'.")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_(SHARED|EXECUTABLE)_RELEASE'.")
 endif()
diff --git a/Tests/RunCMake/add_link_options/LINK_OPTIONS-shared-check.cmake b/Tests/RunCMake/add_link_options/LINK_OPTIONS-shared-check.cmake
index eaac8e3..ecba17e 100644
--- a/Tests/RunCMake/add_link_options/LINK_OPTIONS-shared-check.cmake
+++ b/Tests/RunCMake/add_link_options/LINK_OPTIONS-shared-check.cmake
@@ -3,5 +3,8 @@ if (NOT actual_stdout MATCHES "BADFLAG_SHARED_RELEASE")
   set (RunCMake_TEST_FAILED "Not found expected 'BADFLAG_SHARED_RELEASE'.")
 endif()
 if (actual_stdout MATCHES "BADFLAG_(MODULE|EXECUTABLE)_RELEASE")
-  set (RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_(MODULE|EXECUTABLE)_RELEASE'.")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_(MODULE|EXECUTABLE)_RELEASE'.")
 endif()
diff --git a/Tests/RunCMake/add_link_options/LinkOptionsLib.cxx b/Tests/RunCMake/add_link_options/LinkOptionsLib.cxx
new file mode 100644
index 0000000..9bbd24c
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/LinkOptionsLib.cxx
@@ -0,0 +1,7 @@
+#if defined(_WIN32)
+__declspec(dllexport)
+#endif
+  int flags_lib(void)
+{
+  return 0;
+}
diff --git a/Tests/RunCMake/add_link_options/RunCMakeTest.cmake b/Tests/RunCMake/add_link_options/RunCMakeTest.cmake
index 4f5df72..465ff85 100644
--- a/Tests/RunCMake/add_link_options/RunCMakeTest.cmake
+++ b/Tests/RunCMake/add_link_options/RunCMakeTest.cmake
@@ -23,6 +23,21 @@ if (NOT CMAKE_C_COMPILER_ID STREQUAL "Intel")
   run_cmake_target(LINK_OPTIONS mod LinkOptions_mod --config Release)
   run_cmake_target(LINK_OPTIONS exe LinkOptions_exe --config Release)
 
+
+  run_cmake(genex_LINK_LANGUAGE)
+
+  run_cmake_target(genex_LINK_LANGUAGE shared_c LinkOptions_shared_c --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE shared_cxx LinkOptions_shared_cxx --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE mod LinkOptions_mod --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE exe LinkOptions_exe --config Release)
+
+  run_cmake(genex_LINK_LANG_AND_ID)
+
+  run_cmake_target(genex_LINK_LANG_AND_ID shared_c LinkOptions_shared_c --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID shared_cxx LinkOptions_shared_cxx --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID mod LinkOptions_mod --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID exe LinkOptions_exe --config Release)
+
   unset(RunCMake_TEST_OPTIONS)
   unset(RunCMake_TEST_OUTPUT_MERGE)
 endif()
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-exe-check.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-exe-check.cmake
new file mode 100644
index 0000000..71f641d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-exe-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-exe-result.txt b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-exe-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-exe-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-mod-check.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-mod-check.cmake
new file mode 100644
index 0000000..71f641d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-mod-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-mod-result.txt b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-mod-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-mod-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_c-check.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_c-check.cmake
new file mode 100644
index 0000000..ba0120c
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_c-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG C)
+set (INVALID_LANG CXX)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_c-result.txt b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_c-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_c-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_cxx-check.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_cxx-check.cmake
new file mode 100644
index 0000000..aa39810
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_cxx-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG CXX)
+set (INVALID_LANG C)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_cxx-result.txt b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_cxx-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-shared_cxx-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-validation.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-validation.cmake
new file mode 100644
index 0000000..f0237ab
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE-validation.cmake
@@ -0,0 +1,17 @@
+
+if (NOT DEFINED VALID_LANG)
+  set (VALID_LANG C)
+endif()
+if (NOT DEFINED INVALID_LANG)
+  set (INVALID_LANG CXX)
+endif()
+
+if (NOT actual_stdout MATCHES "BADFLAG_${VALID_LANG}_LANG")
+  set (RunCMake_TEST_FAILED "Not found expected 'BADFLAG_${VALID_LANG}_LANG'.")
+endif()
+if (actual_stdout MATCHES "BADFLAG_${INVALID_LANG}_LANG")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_${INVALID_LANG}_LANG'.")
+endif()
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE.cmake
new file mode 100644
index 0000000..d74d448
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANGUAGE.cmake
@@ -0,0 +1,17 @@
+
+enable_language(C)
+enable_language(CXX)
+
+if(BORLAND)
+  set(pre -)
+endif()
+
+add_link_options ($<$<LINK_LANGUAGE:C>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${CMAKE_C_OUTPUT_EXTENSION}>
+                  $<$<LINK_LANGUAGE:CXX>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${CMAKE_CXX_OUTPUT_EXTENSION}>)
+
+add_library(LinkOptions_shared_c SHARED LinkOptionsLib.c)
+add_library(LinkOptions_shared_cxx SHARED LinkOptionsLib.cxx)
+
+add_library(LinkOptions_mod MODULE LinkOptionsLib.c)
+
+add_executable(LinkOptions_exe LinkOptionsExe.c)
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-exe-check.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-exe-check.cmake
new file mode 100644
index 0000000..6bddee1
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-exe-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-exe-result.txt b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-exe-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-exe-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-mod-check.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-mod-check.cmake
new file mode 100644
index 0000000..6bddee1
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-mod-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-mod-result.txt b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-mod-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-mod-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_c-check.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_c-check.cmake
new file mode 100644
index 0000000..cf498d9
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_c-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG C)
+set (INVALID_LANG CXX)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_c-result.txt b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_c-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_c-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_cxx-check.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_cxx-check.cmake
new file mode 100644
index 0000000..ed4f851
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_cxx-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG CXX)
+set (INVALID_LANG C)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_cxx-result.txt b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_cxx-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-shared_cxx-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-validation.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-validation.cmake
new file mode 100644
index 0000000..a5dc27f
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID-validation.cmake
@@ -0,0 +1,23 @@
+
+if (NOT VALID_LANG)
+  set (VALID_LANG C)
+endif()
+if (NOT INVALID_LANG)
+  set (INVALID_LANG CXX)
+endif()
+
+if (NOT actual_stdout MATCHES "BADFLAG_${VALID_LANG}_LANG_ID")
+  set (RunCMake_TEST_FAILED "Not found expected 'BADFLAG_${VALID_LANG}_LANG_ID'.\n")
+endif()
+if (actual_stdout MATCHES "BADFLAG_${INVALID_LANG}_LANG_ID")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_${INVALID_LANG}_LANG_ID '.")
+endif()
+if (actual_stdout MATCHES "BADFLAG_(${VALID_LANG}|${INVALID_LANG})_BADID")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_(${VALID_LANG}|${INVALID_LANG})_BADID'.")
+endif()
diff --git a/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID.cmake b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID.cmake
new file mode 100644
index 0000000..c807050
--- /dev/null
+++ b/Tests/RunCMake/add_link_options/genex_LINK_LANG_AND_ID.cmake
@@ -0,0 +1,19 @@
+
+enable_language(C)
+enable_language(CXX)
+
+if(BORLAND)
+  set(pre -)
+endif()
+
+add_link_options ($<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:${pre}BADFLAG_C_LANG_ID${CMAKE_C_OUTPUT_EXTENSION}>
+                  $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:${pre}BADFLAG_CXX_LANG_ID${CMAKE_CXX_OUTPUT_EXTENSION}>
+                  $<$<LINK_LANG_AND_ID:C,BADID>:${pre}BADFLAG_C_BADID${CMAKE_C_OUTPUT_EXTENSION}>
+                  $<$<LINK_LANG_AND_ID:CXX,BADID>:${pre}BADFLAG_CXX_BADID${CMAKE_CXX_OUTPUT_EXTENSION}>)
+
+add_library(LinkOptions_shared_c SHARED LinkOptionsLib.c)
+add_library(LinkOptions_shared_cxx SHARED LinkOptionsLib.cxx)
+
+add_library(LinkOptions_mod MODULE LinkOptionsLib.c)
+
+add_executable(LinkOptions_exe LinkOptionsExe.c)
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)
diff --git a/Tests/RunCMake/target_link_libraries/RunCMakeTest.cmake b/Tests/RunCMake/target_link_libraries/RunCMakeTest.cmake
index 0152d4c..c7feb5f 100644
--- a/Tests/RunCMake/target_link_libraries/RunCMakeTest.cmake
+++ b/Tests/RunCMake/target_link_libraries/RunCMakeTest.cmake
@@ -20,3 +20,57 @@ run_cmake(StaticPrivateDepNotExported)
 run_cmake(StaticPrivateDepNotTarget)
 run_cmake(UNKNOWN-IMPORTED-GLOBAL)
 run_cmake(empty_keyword_args)
+run_cmake(genex_LINK_LANGUAGE-bad-usage)
+
+if (RunCMake_GENERATOR MATCHES "Makefiles|Ninja|Visual Studio|Xcode|Watcom WMake")
+
+  run_cmake(genex_LINK_LANGUAGE-bad-mix-lang)
+  run_cmake(genex_LINK_LANG_AND_ID-bad-mix-lang)
+
+  macro(run_cmake_target test subtest target)
+    set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/${test}-build)
+    set(RunCMake_TEST_NO_CLEAN 1)
+    run_cmake_command(${test}-${subtest} ${CMAKE_COMMAND} --build . --target ${target} ${ARGN})
+
+    unset(RunCMake_TEST_BINARY_DIR)
+    unset(RunCMake_TEST_NO_CLEAN)
+  endmacro()
+
+  set(RunCMake_TEST_OUTPUT_MERGE TRUE)
+  if (NOT RunCMake_GENERATOR_IS_MULTI_CONFIG)
+    set(RunCMake_TEST_OPTIONS -DCMAKE_BUILD_TYPE=Release)
+  endif()
+
+  run_cmake(genex_LINK_LANGUAGE)
+
+  run_cmake_target(genex_LINK_LANGUAGE lib LinkLibraries_lib --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE lib2 LinkLibraries_lib2 --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE lib3 LinkLibraries_lib3 --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE exe LinkLibraries_exe --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE C_import LinkLibraries_C_import --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE CXX_import LinkLibraries_CXX_import --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE C_interface LinkLibraries_C_interface --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE CXX_interface LinkLibraries_CXX_interface --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE C_interface2 LinkLibraries_C_interface2 --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE CXX_interface2 LinkLibraries_CXX_interface2 --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE C_static LinkLibraries_C_static --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE CXX_static LinkLibraries_CXX_static --config Release)
+
+  run_cmake(genex_LINK_LANG_AND_ID)
+
+  run_cmake_target(genex_LINK_LANG_AND_ID lib LinkLibraries_lib --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID lib2 LinkLibraries_lib2 --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID lib3 LinkLibraries_lib3 --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID exe LinkLibraries_exe --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID C_import LinkLibraries_C_import --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID CXX_import LinkLibraries_CXX_import --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID C_interface LinkLibraries_C_interface --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID CXX_interface LinkLibraries_CXX_interface --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID C_interface2 LinkLibraries_C_interface2 --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID CXX_interface2 LinkLibraries_CXX_interface2 --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID CXX_static LinkLibraries_CXX_static --config Release)
+
+  unset(RunCMake_TEST_OPTIONS)
+  unset(RunCMake_TEST_OUTPUT_MERGE)
+
+endif()
diff --git a/Tests/RunCMake/target_link_libraries/func.c b/Tests/RunCMake/target_link_libraries/func.c
new file mode 100644
index 0000000..415a9bf
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/func.c
@@ -0,0 +1,7 @@
+
+#if defined(_WIN32)
+__declspec(dllexport)
+#endif
+  void func_c()
+{
+}
diff --git a/Tests/RunCMake/target_link_libraries/func.cxx b/Tests/RunCMake/target_link_libraries/func.cxx
new file mode 100644
index 0000000..a12caca
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/func.cxx
@@ -0,0 +1,7 @@
+
+#if defined(_WIN32)
+__declspec(dllexport)
+#endif
+  void func_cxx()
+{
+}
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-mix-lang-result.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-mix-lang-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-mix-lang-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-mix-lang-stderr.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-mix-lang-stderr.txt
new file mode 100644
index 0000000..2ecdc0c
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-mix-lang-stderr.txt
@@ -0,0 +1,2 @@
+CMake Error: Evaluation of \$<LINK_LANGUAGE:...> or \$<LINK_LAND_AND_ID:...> changes
+the linker language for target "LinkLibraries_bad_mix_languages" \(from 'C' to 'CXX'\) which is invalid.
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-mix-lang.cmake b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-mix-lang.cmake
new file mode 100644
index 0000000..e8efa75
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-mix-lang.cmake
@@ -0,0 +1,8 @@
+
+enable_language(C)
+enable_language(CXX)
+
+add_library(static_CXX STATIC func.cxx)
+
+add_executable(LinkLibraries_bad_mix_languages main.c)
+target_link_libraries (LinkLibraries_bad_mix_languages PRIVATE $<$<LINK_LANGUAGE:C>:static_CXX>)
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-usage-result.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-usage-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-usage-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-usage-stderr.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-usage-stderr.txt
new file mode 100644
index 0000000..469f1fe
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-usage-stderr.txt
@@ -0,0 +1,8 @@
+CMake Error at genex_LINK_LANGUAGE-bad-usage.cmake:4 \(target_link_libraries\):
+  Error evaluating generator expression:
+
+    \$<LINK_LANGUAGE>
+
+  \$<LINK_LANGUAGE> is not supported in link libraries expression.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-usage.cmake b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-usage.cmake
new file mode 100644
index 0000000..81cfb0c
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE-bad-usage.cmake
@@ -0,0 +1,4 @@
+enable_language(C)
+
+add_library(simple SHARED empty.c)
+target_link_libraries(simple PRIVATE lib$<LINK_LANGUAGE>)
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE.cmake b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE.cmake
new file mode 100644
index 0000000..f3fe955
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANGUAGE.cmake
@@ -0,0 +1,72 @@
+
+cmake_minimum_required(VERSION 3.16...3.17)
+
+enable_language(C)
+enable_language(CXX)
+
+add_library(shared_C SHARED func.c)
+add_library(shared_CXX SHARED func.cxx)
+
+
+add_library(static1_C STATIC empty.c)
+target_link_libraries (static1_C INTERFACE $<$<LINK_LANGUAGE:C>:shared_C>)
+
+add_library(static2_C STATIC empty.c)
+target_link_libraries (static2_C PRIVATE $<$<LINK_LANGUAGE:C>:shared_C>)
+
+
+set (binary_dir "${CMAKE_BINARY_DIR}")
+get_property (is_multi_config GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if (is_multi_config)
+  string (APPEND binary_dir "/Release")
+endif()
+add_library(import STATIC IMPORTED)
+set_property(TARGET import PROPERTY IMPORTED_LOCATION "${binary_dir}/${CMAKE_STATIC_LIBRARY_PREFIX}static1_C${CMAKE_STATIC_LIBRARY_SUFFIX}")
+target_link_libraries (import INTERFACE $<$<LINK_LANGUAGE:C>:shared_C>)
+target_link_libraries (import INTERFACE $<$<LINK_LANGUAGE:CXX>:shared_CXX>)
+
+
+add_library(interface INTERFACE)
+target_link_libraries (interface INTERFACE $<$<LINK_LANGUAGE:C>:shared_C>
+                                           $<$<LINK_LANGUAGE:CXX>:shared_CXX>)
+
+
+add_library(interface2 INTERFACE)
+target_link_libraries (interface2 INTERFACE import)
+
+
+add_library(static3 STATIC empty.c)
+target_link_libraries (static3 PRIVATE interface)
+
+
+add_library(LinkLibraries_lib SHARED lib.c)
+target_link_libraries (LinkLibraries_lib PRIVATE $<$<LINK_LANGUAGE:C>:shared_C>)
+
+add_library(LinkLibraries_lib2 SHARED lib.c)
+target_link_libraries (LinkLibraries_lib2 PRIVATE $<$<LINK_LANGUAGE:C>:static1_C>)
+
+add_library(LinkLibraries_lib3 SHARED lib.c)
+target_link_libraries (LinkLibraries_lib3 PRIVATE $<$<LINK_LANGUAGE:C>:static2_C>)
+
+add_executable(LinkLibraries_exe main.c)
+target_link_libraries (LinkLibraries_exe PRIVATE $<$<LINK_LANGUAGE:C>:shared_C>)
+
+add_executable(LinkLibraries_C_import main.c)
+target_link_libraries (LinkLibraries_C_import PRIVATE import)
+add_executable(LinkLibraries_CXX_import main.cxx)
+target_link_libraries (LinkLibraries_CXX_import PRIVATE import)
+
+add_executable(LinkLibraries_C_interface main.c)
+target_link_libraries (LinkLibraries_C_interface PRIVATE interface)
+add_executable(LinkLibraries_CXX_interface main.cxx)
+target_link_libraries (LinkLibraries_CXX_interface PRIVATE interface)
+
+add_executable(LinkLibraries_C_interface2 main.c)
+target_link_libraries (LinkLibraries_C_interface2 PRIVATE interface2)
+add_executable(LinkLibraries_CXX_interface2 main.cxx)
+target_link_libraries (LinkLibraries_CXX_interface2 PRIVATE interface2)
+
+add_executable(LinkLibraries_C_static main.c)
+target_link_libraries (LinkLibraries_C_static PRIVATE static3)
+add_executable(LinkLibraries_CXX_static main.cxx)
+target_link_libraries (LinkLibraries_CXX_static PRIVATE static3)
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-bad-mix-lang-result.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-bad-mix-lang-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-bad-mix-lang-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-bad-mix-lang-stderr.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-bad-mix-lang-stderr.txt
new file mode 100644
index 0000000..2ecdc0c
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-bad-mix-lang-stderr.txt
@@ -0,0 +1,2 @@
+CMake Error: Evaluation of \$<LINK_LANGUAGE:...> or \$<LINK_LAND_AND_ID:...> changes
+the linker language for target "LinkLibraries_bad_mix_languages" \(from 'C' to 'CXX'\) which is invalid.
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-bad-mix-lang.cmake b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-bad-mix-lang.cmake
new file mode 100644
index 0000000..f80010a
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-bad-mix-lang.cmake
@@ -0,0 +1,8 @@
+
+enable_language(C)
+enable_language(CXX)
+
+add_library(static_CXX STATIC func.cxx)
+
+add_executable(LinkLibraries_bad_mix_languages main.c)
+target_link_libraries (LinkLibraries_bad_mix_languages PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:static_CXX>)
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-basic-result.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-basic-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-basic-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-exe_c-result.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-exe_c-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-exe_c-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-exe_cxx-result.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-exe_cxx-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-exe_cxx-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-interface-result.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-interface-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-interface-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-no_language-result.txt b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-no_language-result.txt
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID-no_language-result.txt
@@ -0,0 +1 @@
+0
diff --git a/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID.cmake b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID.cmake
new file mode 100644
index 0000000..9feccd0
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/genex_LINK_LANG_AND_ID.cmake
@@ -0,0 +1,73 @@
+
+cmake_minimum_required(VERSION 3.16...3.17)
+
+enable_language(C)
+enable_language(CXX)
+
+
+add_library(shared_C SHARED func.c)
+add_library(shared_CXX SHARED func.cxx)
+
+
+add_library(static1_C STATIC empty.c)
+target_link_libraries (static1_C INTERFACE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:shared_C>)
+
+add_library(static2_C STATIC empty.c)
+target_link_libraries (static2_C PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:shared_C>)
+
+
+set (binary_dir "${CMAKE_BINARY_DIR}")
+get_property (is_multi_config GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if (is_multi_config)
+  string (APPEND binary_dir "/Release")
+endif()
+add_library(import STATIC IMPORTED)
+set_property(TARGET import PROPERTY IMPORTED_LOCATION "${binary_dir}/${CMAKE_STATIC_LIBRARY_PREFIX}static1_C${CMAKE_STATIC_LIBRARY_SUFFIX}")
+target_link_libraries (import INTERFACE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:shared_C>)
+target_link_libraries (import INTERFACE $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:shared_CXX>)
+
+
+add_library(interface INTERFACE)
+target_link_libraries (interface INTERFACE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:shared_C>
+                                           $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:shared_CXX>)
+
+
+add_library(interface2 INTERFACE)
+target_link_libraries (interface2 INTERFACE import)
+
+
+add_library(static3 STATIC empty.c)
+target_link_libraries (static3 PRIVATE interface)
+
+
+add_library(LinkLibraries_lib SHARED lib.c)
+target_link_libraries (LinkLibraries_lib PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:shared_C>)
+
+add_library(LinkLibraries_lib2 SHARED lib.c)
+target_link_libraries (LinkLibraries_lib2 PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:static1_C>)
+
+add_library(LinkLibraries_lib3 SHARED lib.c)
+target_link_libraries (LinkLibraries_lib3 PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:static2_C>)
+
+add_executable(LinkLibraries_exe main.c)
+target_link_libraries (LinkLibraries_exe PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:shared_C>)
+
+add_executable(LinkLibraries_C_import main.c)
+target_link_libraries (LinkLibraries_C_import PRIVATE import)
+add_executable(LinkLibraries_CXX_import main.cxx)
+target_link_libraries (LinkLibraries_CXX_import PRIVATE import)
+
+add_executable(LinkLibraries_C_interface main.c)
+target_link_libraries (LinkLibraries_C_interface PRIVATE interface)
+add_executable(LinkLibraries_CXX_interface main.cxx)
+target_link_libraries (LinkLibraries_CXX_interface PRIVATE interface)
+
+add_executable(LinkLibraries_C_interface2 main.c)
+target_link_libraries (LinkLibraries_C_interface2 PRIVATE interface2)
+add_executable(LinkLibraries_CXX_interface2 main.cxx)
+target_link_libraries (LinkLibraries_CXX_interface2 PRIVATE interface2)
+
+add_executable(LinkLibraries_C_static main.c)
+target_link_libraries (LinkLibraries_C_static PRIVATE static3)
+add_executable(LinkLibraries_CXX_static main.cxx)
+target_link_libraries (LinkLibraries_CXX_static PRIVATE static3)
diff --git a/Tests/RunCMake/target_link_libraries/lib.c b/Tests/RunCMake/target_link_libraries/lib.c
new file mode 100644
index 0000000..b2d1b66
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/lib.c
@@ -0,0 +1,10 @@
+
+#if defined(_WIN32)
+__declspec(dllimport)
+#endif
+  void func_c();
+
+void lib()
+{
+  func_c();
+}
diff --git a/Tests/RunCMake/target_link_libraries/main.c b/Tests/RunCMake/target_link_libraries/main.c
new file mode 100644
index 0000000..a908dea
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/main.c
@@ -0,0 +1,12 @@
+
+#if defined(_WIN32)
+__declspec(dllimport)
+#endif
+  void func_c();
+
+int main()
+{
+  func_c();
+
+  return 0;
+}
diff --git a/Tests/RunCMake/target_link_libraries/main.cxx b/Tests/RunCMake/target_link_libraries/main.cxx
new file mode 100644
index 0000000..ffaa3b4
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/main.cxx
@@ -0,0 +1,12 @@
+
+#if defined(_WIN32)
+__declspec(dllimport)
+#endif
+  void func_cxx();
+
+int main()
+{
+  func_cxx();
+
+  return 0;
+}
diff --git a/Tests/RunCMake/target_link_options/RunCMakeTest.cmake b/Tests/RunCMake/target_link_options/RunCMakeTest.cmake
index cdfdd7b..9fdcdee 100644
--- a/Tests/RunCMake/target_link_options/RunCMakeTest.cmake
+++ b/Tests/RunCMake/target_link_options/RunCMakeTest.cmake
@@ -27,6 +27,23 @@ if (NOT CMAKE_C_COMPILER_ID STREQUAL "Intel")
   run_cmake_target(LINK_OPTIONS mod LinkOptions_mod --config Release)
   run_cmake_target(LINK_OPTIONS exe LinkOptions_exe --config Release)
 
+
+  run_cmake(genex_LINK_LANGUAGE)
+
+  run_cmake_target(genex_LINK_LANGUAGE interface LinkOptions_shared_interface --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE shared_c LinkOptions_shared_c --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE LINKER_LANGUAGE LinkOptions_shared_cxx --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE mod LinkOptions_mod --config Release)
+  run_cmake_target(genex_LINK_LANGUAGE exe LinkOptions_exe --config Release)
+
+  run_cmake(genex_LINK_LANG_AND_ID)
+
+  run_cmake_target(genex_LINK_LANG_AND_ID interface LinkOptions_shared_interface --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID shared_c LinkOptions_shared_c --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID LINKER_LANGUAGE LinkOptions_shared_cxx --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID mod LinkOptions_mod --config Release)
+  run_cmake_target(genex_LINK_LANG_AND_ID exe LinkOptions_exe --config Release)
+
   unset(RunCMake_TEST_OPTIONS)
   unset(RunCMake_TEST_OUTPUT_MERGE)
 endif()
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-LINKER_LANGUAGE-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-LINKER_LANGUAGE-check.cmake
new file mode 100644
index 0000000..aa39810
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-LINKER_LANGUAGE-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG CXX)
+set (INVALID_LANG C)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-LINKER_LANGUAGE-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-LINKER_LANGUAGE-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-LINKER_LANGUAGE-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-exe-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-exe-check.cmake
new file mode 100644
index 0000000..71f641d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-exe-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-exe-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-exe-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-exe-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-interface-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-interface-check.cmake
new file mode 100644
index 0000000..ba0120c
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-interface-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG C)
+set (INVALID_LANG CXX)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-interface-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-interface-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-interface-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-mod-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-mod-check.cmake
new file mode 100644
index 0000000..71f641d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-mod-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-mod-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-mod-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-mod-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-shared_c-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-shared_c-check.cmake
new file mode 100644
index 0000000..ba0120c
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-shared_c-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG C)
+set (INVALID_LANG CXX)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANGUAGE-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-shared_c-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-shared_c-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-shared_c-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-validation.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-validation.cmake
new file mode 100644
index 0000000..f0237ab
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE-validation.cmake
@@ -0,0 +1,17 @@
+
+if (NOT DEFINED VALID_LANG)
+  set (VALID_LANG C)
+endif()
+if (NOT DEFINED INVALID_LANG)
+  set (INVALID_LANG CXX)
+endif()
+
+if (NOT actual_stdout MATCHES "BADFLAG_${VALID_LANG}_LANG")
+  set (RunCMake_TEST_FAILED "Not found expected 'BADFLAG_${VALID_LANG}_LANG'.")
+endif()
+if (actual_stdout MATCHES "BADFLAG_${INVALID_LANG}_LANG")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_${INVALID_LANG}_LANG'.")
+endif()
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE.cmake
new file mode 100644
index 0000000..61e6159
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANGUAGE.cmake
@@ -0,0 +1,32 @@
+
+enable_language(C)
+enable_language(CXX)
+
+set (obj "${CMAKE_C_OUTPUT_EXTENSION}")
+if(BORLAND)
+  set(pre -)
+endif()
+
+add_library(LinkOptions_interface INTERFACE)
+target_link_options (LinkOptions_interface INTERFACE $<$<LINK_LANGUAGE:C>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>
+                                                     $<$<LINK_LANGUAGE:CXX>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>)
+
+add_library(LinkOptions_shared_interface SHARED LinkOptionsLib.c)
+target_link_libraries (LinkOptions_shared_interface PRIVATE LinkOptions_interface)
+
+add_library(LinkOptions_shared_c SHARED LinkOptionsLib.c)
+target_link_options (LinkOptions_shared_c PRIVATE $<$<LINK_LANGUAGE:C>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>
+                                                  $<$<LINK_LANGUAGE:CXX>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>)
+
+add_library(LinkOptions_shared_cxx SHARED LinkOptionsLib.c)
+target_link_options (LinkOptions_shared_cxx PRIVATE $<$<LINK_LANGUAGE:C>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>
+                                                    $<$<LINK_LANGUAGE:CXX>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>)
+set_property (TARGET LinkOptions_shared_cxx PROPERTY LINKER_LANGUAGE CXX)
+
+add_library(LinkOptions_mod MODULE LinkOptionsLib.c)
+target_link_options (LinkOptions_mod PRIVATE $<$<LINK_LANGUAGE:C>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>
+                                             $<$<LINK_LANGUAGE:CXX>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>)
+
+add_executable(LinkOptions_exe LinkOptionsExe.c)
+target_link_options (LinkOptions_exe PRIVATE $<$<LINK_LANGUAGE:C>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>
+                                             $<$<LINK_LANGUAGE:CXX>:${pre}BADFLAG_$<LINK_LANGUAGE>_LANG${obj}>)
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-check.cmake
new file mode 100644
index 0000000..ed4f851
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG CXX)
+set (INVALID_LANG C)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-LINKER_LANGUAGE-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-exe-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-exe-check.cmake
new file mode 100644
index 0000000..6bddee1
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-exe-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-exe-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-exe-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-exe-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-interface-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-interface-check.cmake
new file mode 100644
index 0000000..cf498d9
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-interface-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG C)
+set (INVALID_LANG CXX)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-interface-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-interface-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-interface-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-mod-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-mod-check.cmake
new file mode 100644
index 0000000..6bddee1
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-mod-check.cmake
@@ -0,0 +1,2 @@
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-mod-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-mod-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-mod-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-shared_c-check.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-shared_c-check.cmake
new file mode 100644
index 0000000..cf498d9
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-shared_c-check.cmake
@@ -0,0 +1,5 @@
+
+set (VALID_LANG C)
+set (INVALID_LANG CXX)
+
+include ("${CMAKE_CURRENT_LIST_DIR}/genex_LINK_LANG_AND_ID-validation.cmake")
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-shared_c-result.txt b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-shared_c-result.txt
new file mode 100644
index 0000000..8d98f9d
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-shared_c-result.txt
@@ -0,0 +1 @@
+.*
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-validation.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-validation.cmake
new file mode 100644
index 0000000..a5dc27f
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID-validation.cmake
@@ -0,0 +1,23 @@
+
+if (NOT VALID_LANG)
+  set (VALID_LANG C)
+endif()
+if (NOT INVALID_LANG)
+  set (INVALID_LANG CXX)
+endif()
+
+if (NOT actual_stdout MATCHES "BADFLAG_${VALID_LANG}_LANG_ID")
+  set (RunCMake_TEST_FAILED "Not found expected 'BADFLAG_${VALID_LANG}_LANG_ID'.\n")
+endif()
+if (actual_stdout MATCHES "BADFLAG_${INVALID_LANG}_LANG_ID")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_${INVALID_LANG}_LANG_ID '.")
+endif()
+if (actual_stdout MATCHES "BADFLAG_(${VALID_LANG}|${INVALID_LANG})_BADID")
+  if (RunCMake_TEST_FAILED)
+    string (APPEND RunCMake_TEST_FAILED "\n")
+  endif()
+  string (APPEND RunCMake_TEST_FAILED "Found unexpected 'BADFLAG_(${VALID_LANG}|${INVALID_LANG})_BADID'.")
+endif()
diff --git a/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID.cmake b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID.cmake
new file mode 100644
index 0000000..db0f500
--- /dev/null
+++ b/Tests/RunCMake/target_link_options/genex_LINK_LANG_AND_ID.cmake
@@ -0,0 +1,41 @@
+
+enable_language(C)
+enable_language(CXX)
+
+if(BORLAND)
+  set(pre -)
+endif()
+
+add_library(LinkOptions_interface INTERFACE)
+target_link_options (LinkOptions_interface INTERFACE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:${pre}BADFLAG_C_LANG_ID${CMAKE_C_OUTPUT_EXTENSION}>
+                                                     $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:${pre}BADFLAG_CXX_LANG_ID${CMAKE_CXX_OUTPUT_EXTENSION}>
+                                                     $<$<LINK_LANG_AND_ID:C,BADID>:${pre}BADFLAG_C_BADID${CMAKE_C_OUTPUT_EXTENSION}>
+                                                     $<$<LINK_LANG_AND_ID:CXX,BADID>:${pre}BADFLAG_CXX_BADID${CMAKE_CXX_OUTPUT_EXTENSION}>)
+
+add_library(LinkOptions_shared_interface SHARED LinkOptionsLib.c)
+target_link_libraries (LinkOptions_shared_interface PRIVATE LinkOptions_interface)
+
+add_library(LinkOptions_shared_c SHARED LinkOptionsLib.c)
+target_link_options (LinkOptions_shared_c PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:${pre}BADFLAG_C_LANG_ID${CMAKE_C_OUTPUT_EXTENSION}>
+                                                  $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:${pre}BADFLAG_CXX_LANG_ID${CMAKE_CXX_OUTPUT_EXTENSION}>
+                                                  $<$<LINK_LANG_AND_ID:C,BADID>:${pre}BADFLAG_C_BADID${CMAKE_C_OUTPUT_EXTENSION}>
+                                                  $<$<LINK_LANG_AND_ID:CXX,BADID>:${pre}BADFLAG_CXX_BADID${CMAKE_CXX_OUTPUT_EXTENSION}>)
+
+add_library(LinkOptions_shared_cxx SHARED LinkOptionsLib.c)
+target_link_options (LinkOptions_shared_cxx PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:${pre}BADFLAG_C_LANG_ID${CMAKE_C_OUTPUT_EXTENSION}>
+                                                    $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:${pre}BADFLAG_CXX_LANG_ID${CMAKE_CXX_OUTPUT_EXTENSION}>
+                                                    $<$<LINK_LANG_AND_ID:C,BADID>:${pre}BADFLAG_C_BADID${CMAKE_C_OUTPUT_EXTENSION}>
+                                                    $<$<LINK_LANG_AND_ID:CXX,BADID>:${pre}BADFLAG_CXX_BADID${CMAKE_CXX_OUTPUT_EXTENSION}>)
+set_property (TARGET LinkOptions_shared_cxx PROPERTY LINKER_LANGUAGE CXX)
+
+add_library(LinkOptions_mod MODULE LinkOptionsLib.c)
+target_link_options (LinkOptions_mod PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:${pre}BADFLAG_C_LANG_ID${CMAKE_C_OUTPUT_EXTENSION}>
+                                             $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:${pre}BADFLAG_CXX_LANG_ID${CMAKE_CXX_OUTPUT_EXTENSION}>
+                                             $<$<LINK_LANG_AND_ID:C,BADID>:${pre}BADFLAG_C_BADID${CMAKE_C_OUTPUT_EXTENSION}>
+                                             $<$<LINK_LANG_AND_ID:CXX,BADID>:${pre}BADFLAG_CXX_BADID${CMAKE_CXX_OUTPUT_EXTENSION}>)
+
+add_executable(LinkOptions_exe LinkOptionsExe.c)
+target_link_options (LinkOptions_exe PRIVATE $<$<LINK_LANG_AND_ID:C,${CMAKE_C_COMPILER_ID}>:${pre}BADFLAG_C_LANG_ID${CMAKE_C_OUTPUT_EXTENSION}>
+                                             $<$<LINK_LANG_AND_ID:CXX,${CMAKE_CXX_COMPILER_ID}>:${pre}BADFLAG_CXX_LANG_ID${CMAKE_CXX_OUTPUT_EXTENSION}>
+                                             $<$<LINK_LANG_AND_ID:C,BADID>:${pre}BADFLAG_C_BADID${CMAKE_C_OUTPUT_EXTENSION}>
+                                             $<$<LINK_LANG_AND_ID:CXX,BADID>:${pre}BADFLAG_CXX_BADID${CMAKE_CXX_OUTPUT_EXTENSION}>)