Automoc: Fix support of files with the same name (#12873)

1 files changed, 32 insertions, 3 deletions

diff --git a/Source/cmQtAutoGenerators.cxx b/Source/cmQtAutoGenerators.cxx
index b16eccd..226ab43 100644
--- a/Source/cmQtAutoGenerators.cxx
+++ b/Source/cmQtAutoGenerators.cxx
@@ -1104,10 +1104,39 @@ void cmQtAutoGenerators::ParseHeaders(const std::set<std::string>& absHeaders,
         std::cout << "AUTOGEN: Checking " << headerName << std::endl;
         }
 
-      const std::string basename = cmsys::SystemTools::
-                                   GetFilenameWithoutLastExtension(headerName);
+      std::string headerDirectory;
+      if (cmsys::SystemTools::IsSubDirectory(headerName,
+                                             this->ProjectSourceDir))
+        {
+        headerDirectory = this->ProjectSourceDir;
+        }
+      else if (cmsys::SystemTools::IsSubDirectory(headerName,
+                                                  this->ProjectBinaryDir))
+        {
+        headerDirectory = this->ProjectBinaryDir;
+        }
+      else
+        {
+        cmsys::SystemTools::SplitPathRootComponent(headerName,
+                                                   &headerDirectory);
+        }
+
+      std::string baseHeaderName =
+        cmsys::SystemTools::GetFilenameWithoutLastExtension(headerName);
+
+      headerDirectory = cmsys::SystemTools::RelativePath(
+        headerDirectory, cmsys::SystemTools::GetParentDirectory(headerName));
+
+      if (!headerDirectory.empty())
+        {
+        headerDirectory += "/";
+        }
+
+      std::string mocName = headerDirectory + baseHeaderName;
+
+      cmSystemTools::ReplaceString(mocName, "/", "_");
 
-      const std::string currentMoc = "moc_" + basename + ".cpp";
+      const std::string currentMoc = "moc_" + mocName + ".cpp";
       std::string macroName;
       if (requiresMocing(contents, macroName))
         {