diff --git a/lib/ExecutionEngine/Makefile b/lib/ExecutionEngine/Makefile
index b97e411..54ed699 100644
--- a/lib/ExecutionEngine/Makefile
+++ b/lib/ExecutionEngine/Makefile
@@ -2,9 +2,25 @@
 TOOLNAME = lli
 PARALLEL_DIRS = Interpreter JIT
 
-JITLIBS  = lli-jit codegen x86
-USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore scalaropts.a \
-           analysis.a support.a target.a 
+# FIXME: This enables testing the Sparc JIT on x86.
+# Perhaps in the future this should be a ./configure option.
+
+# Generic JIT libraries
+JITLIBS   = lli-jit codegen
+ARCHLIBS  =
+
+# What the X86 JIT requires
+JITLIBS  += x86
+ARCHLIBS += 
+
+# What the Sparc JIT requires
+JITLIBS  += sparc 
+ARCHLIBS  = sched livevar instrument.a profpaths transformutils.a \
+           bcwriter transforms.a ipo.a ipa.a datastructure.a regalloc \
+           mapping select postopts.a preopts
+
+USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore scalaropts \
+           analysis.a support.a target.a $(ARCHLIBS)
 
 # Have gcc tell the linker to export symbols from the program so that
 # dynamically loaded modules can be linked against them.
diff --git a/tools/lli/Makefile b/tools/lli/Makefile
index b97e411..54ed699 100644
--- a/tools/lli/Makefile
+++ b/tools/lli/Makefile
@@ -2,9 +2,25 @@
 TOOLNAME = lli
 PARALLEL_DIRS = Interpreter JIT
 
-JITLIBS  = lli-jit codegen x86
-USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore scalaropts.a \
-           analysis.a support.a target.a 
+# FIXME: This enables testing the Sparc JIT on x86.
+# Perhaps in the future this should be a ./configure option.
+
+# Generic JIT libraries
+JITLIBS   = lli-jit codegen
+ARCHLIBS  =
+
+# What the X86 JIT requires
+JITLIBS  += x86
+ARCHLIBS += 
+
+# What the Sparc JIT requires
+JITLIBS  += sparc 
+ARCHLIBS  = sched livevar instrument.a profpaths transformutils.a \
+           bcwriter transforms.a ipo.a ipa.a datastructure.a regalloc \
+           mapping select postopts.a preopts
+
+USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore scalaropts \
+           analysis.a support.a target.a $(ARCHLIBS)
 
 # Have gcc tell the linker to export symbols from the program so that
 # dynamically loaded modules can be linked against them.