diff --git a/llvm/lib/Target/CBackend/Writer.cpp b/llvm/lib/Target/CBackend/Writer.cpp
index 5b786d4..85229ad 100644
--- a/llvm/lib/Target/CBackend/Writer.cpp
+++ b/llvm/lib/Target/CBackend/Writer.cpp
@@ -702,13 +702,12 @@
 static void generateCompilerSpecificCode(std::ostream& Out) {
   // Alloca is hard to get, and we don't want to include stdlib.h here...
   Out << "/* get a declaration for alloca */\n"
-      << "#if defined(sun) || defined(__CYGWIN__) || defined(__APPLE__)\n"
+      << "#if defined(sun) || defined(__CYGWIN__) || defined(__APPLE__) || "
+      << "defined(__FreeBSD__)\n"
       << "extern void *__builtin_alloca(unsigned long);\n"
       << "#define alloca(x) __builtin_alloca(x)\n"
       << "#else\n"
-      << "#ifndef __FreeBSD__\n"
       << "#include <alloca.h>\n"
-      << "#endif\n"
       << "#endif\n\n";
 
   // We output GCC specific attributes to preserve 'linkonce'ness on globals.