diff --git a/lib/Bytecode/Archive/Makefile b/lib/Bytecode/Archive/Makefile
index e8cc803..37e67ca 100644
--- a/lib/Bytecode/Archive/Makefile
+++ b/lib/Bytecode/Archive/Makefile
@@ -12,6 +12,7 @@
 
 # We only want an archive so only those modules actually used by a tool are 
 # included.
-BUILD_ARCHIVE = 1
+BUILD_ARCHIVE := 1
+REQUIRES_EH := 1
 
 include $(LEVEL)/Makefile.common
diff --git a/lib/Bytecode/Reader/Makefile b/lib/Bytecode/Reader/Makefile
index a86d008..989eba7 100644
--- a/lib/Bytecode/Reader/Makefile
+++ b/lib/Bytecode/Reader/Makefile
@@ -9,6 +9,7 @@
 LEVEL = ../../..
 LIBRARYNAME = LLVMBCReader
 BUILD_ARCHIVE = 1
+REQUIRES_EH := 1
 
 include $(LEVEL)/Makefile.common