--- /dev/null
+/* Parameters about the a.out format, based on the host system on which
+ the program is compiled. */
+
+/* Address of data segment in memory after it is loaded.
+ It is up to you to define SEGMENT_SIZE
+ on machines not listed here. */
+#ifndef SEGMENT_SIZE
+#if defined(hp300) || defined(pyr)
+#define SEGMENT_SIZE page_size
+#endif
+#ifdef sony
+#define SEGMENT_SIZE 0x2000
+#endif /* Sony. */
+#ifdef is68k
+#define SEGMENT_SIZE 0x20000
+#endif
+#if defined(m68k) && defined(PORTAR)
+#define PAGE_SIZE 0x400
+#define SEGMENT_SIZE PAGE_SIZE
+#endif
+#endif /*!defined(SEGMENT_SIZE)*/
+