Index: gdb-7.3.50.20110722/gdb/dwarf2read.c
===================================================================
--- gdb-7.3.50.20110722.orig/gdb/dwarf2read.c	2011-07-22 19:37:15.000000000 +0200
+++ gdb-7.3.50.20110722/gdb/dwarf2read.c	2011-07-22 19:44:42.000000000 +0200
@@ -67,12 +67,14 @@
 #ifdef HAVE_ZLIB_H
 #include <zlib.h>
 #endif
+#ifndef __sparc__
 #ifdef HAVE_MMAP
 #include <sys/mman.h>
 #ifndef MAP_FAILED
 #define MAP_FAILED ((void *) -1)
 #endif
 #endif
+#endif
 
 typedef struct symbol *symbolp;
 DEF_VEC_P (symbolp);
@@ -1618,6 +1620,7 @@ dwarf2_read_section (struct objfile *obj
         }
     }
 
+#ifndef __sparc__
 #ifdef HAVE_MMAP
   if (pagesize == 0)
     pagesize = getpagesize ();
@@ -1641,6 +1644,7 @@ dwarf2_read_section (struct objfile *obj
 	}
     }
 #endif
+#endif
 
   /* If we get here, we are a normal, not-compressed section.  */
   info->buffer = buf
@@ -15983,6 +15987,7 @@ munmap_section_buffer (struct dwarf2_sec
 {
   if (info->map_addr != NULL)
     {
+#ifndef __sparc__
 #ifdef HAVE_MMAP
       int res;
 
@@ -15992,6 +15997,7 @@ munmap_section_buffer (struct dwarf2_sec
       /* Without HAVE_MMAP, we should never be here to begin with.  */
       gdb_assert_not_reached ("no mmap support");
 #endif
+#endif
     }
 }