Qt6 migration fixes: RTI DDS alias targets, ErrorMessage namespace, DDS header include path

build-test2/Lts/Common/LtsAppDescriptor/ltsappdescriptor_export.h

@@ -0,0 +1,43 @@
+
+#ifndef LTSAPPDESCRIPTOR_EXPORT_H
+#define LTSAPPDESCRIPTOR_EXPORT_H
+
+#ifdef LTSAPPDESCRIPTOR_STATIC_DEFINE
+#  define LTSAPPDESCRIPTOR_EXPORT
+#  define LTSAPPDESCRIPTOR_NO_EXPORT
+#else
+#  ifndef LTSAPPDESCRIPTOR_EXPORT
+#    ifdef LtsAppDescriptor_EXPORTS
+        /* We are building this library */
+#      define LTSAPPDESCRIPTOR_EXPORT __attribute__((visibility("default")))
+#    else
+        /* We are using this library */
+#      define LTSAPPDESCRIPTOR_EXPORT __attribute__((visibility("default")))
+#    endif
+#  endif
+
+#  ifndef LTSAPPDESCRIPTOR_NO_EXPORT
+#    define LTSAPPDESCRIPTOR_NO_EXPORT __attribute__((visibility("hidden")))
+#  endif
+#endif
+
+#ifndef LTSAPPDESCRIPTOR_DEPRECATED
+#  define LTSAPPDESCRIPTOR_DEPRECATED __attribute__ ((__deprecated__))
+#endif
+
+#ifndef LTSAPPDESCRIPTOR_DEPRECATED_EXPORT
+#  define LTSAPPDESCRIPTOR_DEPRECATED_EXPORT LTSAPPDESCRIPTOR_EXPORT LTSAPPDESCRIPTOR_DEPRECATED
+#endif
+
+#ifndef LTSAPPDESCRIPTOR_DEPRECATED_NO_EXPORT
+#  define LTSAPPDESCRIPTOR_DEPRECATED_NO_EXPORT LTSAPPDESCRIPTOR_NO_EXPORT LTSAPPDESCRIPTOR_DEPRECATED
+#endif
+
+/* NOLINTNEXTLINE(readability-avoid-unconditional-preprocessor-if) */
+#if 0 /* DEFINE_NO_DEPRECATED */
+#  ifndef LTSAPPDESCRIPTOR_NO_DEPRECATED
+#    define LTSAPPDESCRIPTOR_NO_DEPRECATED
+#  endif
+#endif
+
+#endif /* LTSAPPDESCRIPTOR_EXPORT_H */