diff --git a/lld/Common/CommonLinkerContext.cpp b/lld/Common/CommonLinkerContext.cpp
--- a/lld/Common/CommonLinkerContext.cpp
+++ b/lld/Common/CommonLinkerContext.cpp
@@ -10,6 +10,8 @@
 #include "lld/Common/ErrorHandler.h"
 #include "lld/Common/Memory.h"
 
+#include "llvm/CodeGen/CommandFlags.h"
+
 using namespace llvm;
 using namespace lld;
 
@@ -20,7 +22,11 @@
 // state.
 static CommonLinkerContext *lctx;
 
-CommonLinkerContext::CommonLinkerContext() { lctx = this; }
+CommonLinkerContext::CommonLinkerContext() {
+  lctx = this;
+  // Fire off the static initializations in CGF's constructor.
+  codegen::RegisterCodeGenFlags CGF;
+}
 
 CommonLinkerContext::~CommonLinkerContext() {
   assert(lctx);
diff --git a/lld/ELF/Writer.cpp b/lld/ELF/Writer.cpp
--- a/lld/ELF/Writer.cpp
+++ b/lld/ELF/Writer.cpp
@@ -24,6 +24,7 @@
 #include "lld/Common/Filesystem.h"
 #include "lld/Common/Strings.h"
 #include "llvm/ADT/StringMap.h"
+#include "llvm/Support/MD5.h"
 #include "llvm/Support/Parallel.h"
 #include "llvm/Support/RandomNumberGenerator.h"
 #include "llvm/Support/SHA1.h"
diff --git a/lld/MachO/ICF.cpp b/lld/MachO/ICF.cpp
--- a/lld/MachO/ICF.cpp
+++ b/lld/MachO/ICF.cpp
@@ -12,6 +12,7 @@
 #include "Symbols.h"
 #include "UnwindInfoSection.h"
 
+#include "lld/Common/CommonLinkerContext.h"
 #include "llvm/Support/Parallel.h"
 #include "llvm/Support/TimeProfiler.h"
 
diff --git a/lld/include/lld/Common/CommonLinkerContext.h b/lld/include/lld/Common/CommonLinkerContext.h
--- a/lld/include/lld/Common/CommonLinkerContext.h
+++ b/lld/include/lld/Common/CommonLinkerContext.h
@@ -21,7 +21,6 @@
 
 #include "lld/Common/ErrorHandler.h"
 #include "lld/Common/Memory.h"
-#include "llvm/CodeGen/CommandFlags.h"
 #include "llvm/Support/StringSaver.h"
 
 namespace llvm {
@@ -42,9 +41,6 @@
   llvm::DenseMap<void *, SpecificAllocBase *> instances;
 
   ErrorHandler e;
-
-private:
-  llvm::codegen::RegisterCodeGenFlags cgf;
 };
 
 // Retrieve the global state. Currently only one state can exist per process,