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diff --git a/packaging/rpm-uln/my_config.h b/packaging/rpm-uln/my_config.h
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+/*
+ * Kluge to support multilib installation of both 32- and 64-bit RPMS:
+ * we need to arrange that header files that appear in both RPMs are
+ * identical. Hence, this file is architecture-independent and calls
+ * in an arch-dependent file that will appear in just one RPM.
+ *
+ * To avoid breaking arches not explicitly supported by Red Hat, we
+ * use this indirection file *only* on known multilib arches.
+ *
+ * Note: this may well fail if user tries to use gcc's -I- option.
+ * But that option is deprecated anyway.
+ */
+#if defined(__x86_64__)
+#include "my_config_x86_64.h"
+#elif defined(__i386__)
+#include "my_config_i386.h"
+#elif defined(__ppc64__) || defined(__powerpc64__)
+#include "my_config_ppc64.h"
+#elif defined(__ppc__) || defined(__powerpc__)
+#include "my_config_ppc.h"
+#elif defined(__s390x__)
+#include "my_config_s390x.h"
+#elif defined(__s390__)
+#include "my_config_s390.h"
+#elif defined(__sparc__) && defined(__arch64__)
+#include "my_config_sparc64.h"
+#elif defined(__sparc__)
+#include "my_config_sparc.h"
+#endif