Merge topic 'normalize-install-path'

0f1ba8f6bb install: Normalize DESTINATION `.`

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !11755

Source/cmInstallGenerator.cxx

@@ -217,6 +217,10 @@ bool cmInstallGenerator::InstallsForConfig(std::string const& config)
 std::string cmInstallGenerator::ConvertToAbsoluteDestination(
   std::string const& dest)
 {
+  if (dest == ".") {
+    return "${CMAKE_INSTALL_PREFIX}";
+  }
+
   std::string result;
   if (!dest.empty() && !cmSystemTools::FileIsFullPath(dest)) {
     result = "${CMAKE_INSTALL_PREFIX}/";

Tests/RunCMake/install/FILES-DESTINATION-dot-all-stdout.txt

@@ -0,0 +1,2 @@
+-- Installing: [^
+]+/Tests/RunCMake/install/FILES-DESTINATION-dot-build/root-all/empty\.c

Tests/RunCMake/install/FILES-DESTINATION-dot.cmake

@@ -0,0 +1 @@
+install(FILES empty.c DESTINATION ".")

Tests/RunCMake/install/RunCMakeTest.cmake

@@ -127,6 +127,7 @@ if(CMake_TEST_ISPC)
   run_install_test(FILES-EXTRA_ISPC_TARGET_OBJECTS)
 endif()
 
+run_install_test(FILES-DESTINATION-dot)
 
 run_install_test(TARGETS-InstallFromSubDir)
 run_install_test(TARGETS-OPTIONAL)