1 files changed, 19 insertions, 4 deletions
diff --git a/src/plugins/autotoolsprojectmanager/makefileparser.cpp b/src/plugins/autotoolsprojectmanager/makefileparser.cpp
index 9c3e32216b..f56d58422a 100644
--- a/src/plugins/autotoolsprojectmanager/makefileparser.cpp
+++ b/src/plugins/autotoolsprojectmanager/makefileparser.cpp
@@ -291,12 +291,27 @@ void MakefileParser::parseSubDirs()
         foreach (const QString& source, parser.sources())
             m_sources.append(subDir + slash + source);
 
-        // Duplicates might be possible in combination with several
-        // "..._SUBDIRS" targets
-        m_makefiles.removeDuplicates();
-        m_sources.removeDuplicates();
+        // Append the include paths of the sub directory
+        m_includePaths.append(parser.includePaths());
+
+        // Append the flags of the sub directory
+        m_cflags.append(parser.cflags());
+        m_cxxflags.append(parser.cxxflags());
+
+        // Append the macros of the sub directory
+        foreach (const auto& m, parser.macros())
+        {
+            if (!m_macros.contains(m))
+                m_macros.append(m);
+        }
+
     }
 
+    // Duplicates might be possible in combination with several
+    // "..._SUBDIRS" targets
+    m_makefiles.removeDuplicates();
+    m_sources.removeDuplicates();
+
     if (subDirs.isEmpty())
         m_success = false;
 }