--- gc-7.0/configure.ac.BAD	2007-08-30 17:31:16.000000000 -0400
+++ gc-7.0/configure.ac	2007-08-30 17:31:44.000000000 -0400
@@ -395,6 +395,9 @@
  sparc-*-netbsd*)
     machdep="mach_dep.lo sparc_netbsd_mach_dep.lo"
     ;;
+ sparc*-*-linux*)
+    machdep="mach_dep.lo sparc_mach_dep.lo"
+    ;;
  sparc-sun-solaris2.3)
     machdep="mach_dep.lo sparc_mach_dep.lo"
     AC_DEFINE(SUNOS53_SHARED_LIB)
--- gc-7.0/configure.BAD	2007-08-30 17:30:32.000000000 -0400
+++ gc-7.0/configure	2007-08-30 17:31:00.000000000 -0400
@@ -6143,6 +6143,9 @@
  sparc-*-netbsd*)
     machdep="mach_dep.lo sparc_netbsd_mach_dep.lo"
     ;;
+ sparc*-*-linux*)
+    machdep="mach_dep.lo sparc_mach_dep.lo"
+    ;;
  sparc-sun-solaris2.3)
     machdep="mach_dep.lo sparc_mach_dep.lo"
     cat >>confdefs.h <<\_ACEOF
--- gc-7.0/mach_dep.c.BAD	2007-08-30 19:49:38.000000000 -0400
+++ gc-7.0/mach_dep.c	2007-08-30 19:51:58.000000000 -0400
@@ -174,9 +174,10 @@
 
 #   if defined(HAVE_PUSH_REGS)
       GC_push_regs();
-#   elif defined(UNIX_LIKE) && !defined(DARWIN) && !defined(ARM32)
+#   elif defined(UNIX_LIKE) && !defined(DARWIN) && !defined(ARM32) && !defined(SPARC)
       /* Older versions of Darwin seem to lack getcontext(). */
       /* ARM Linux often doesn't support a real getcontext(). */
+      /* SPARC 32bit Linux doesn't support getcontext(). */
       ucontext_t ctxt;
       if (getcontext(&ctxt) < 0)
 	ABORT ("Getcontext failed: Use another register retrieval method?");