diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index 4fe8870..510e9c7 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -723,7 +723,8 @@
     Out << "\n/* Function Declarations */\n";
     for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) {
       // Don't print declarations for intrinsic functions.
-      if (!I->getIntrinsicID()) {
+      if (!I->getIntrinsicID() && 
+          I->getName() != "setjmp" && I->getName() != "longjmp") {
         printFunctionSignature(I, true);
         if (I->hasWeakLinkage()) Out << " __ATTRIBUTE_WEAK__";
         if (I->hasLinkOnceLinkage()) Out << " __ATTRIBUTE_WEAK__";
diff --git a/lib/Target/CBackend/Writer.cpp b/lib/Target/CBackend/Writer.cpp
index 4fe8870..510e9c7 100644
--- a/lib/Target/CBackend/Writer.cpp
+++ b/lib/Target/CBackend/Writer.cpp
@@ -723,7 +723,8 @@
     Out << "\n/* Function Declarations */\n";
     for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) {
       // Don't print declarations for intrinsic functions.
-      if (!I->getIntrinsicID()) {
+      if (!I->getIntrinsicID() && 
+          I->getName() != "setjmp" && I->getName() != "longjmp") {
         printFunctionSignature(I, true);
         if (I->hasWeakLinkage()) Out << " __ATTRIBUTE_WEAK__";
         if (I->hasLinkOnceLinkage()) Out << " __ATTRIBUTE_WEAK__";