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-rw-r--r--lib/Target/CBackend/Writer.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/CBackend/Writer.cpp b/lib/Target/CBackend/Writer.cpp
index ab7a35aad7..45a29b0a49 100644
--- a/lib/Target/CBackend/Writer.cpp
+++ b/lib/Target/CBackend/Writer.cpp
@@ -710,7 +710,7 @@ void CWriter::writeOperand(Value *Operand) {
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(__CYGWIN__) || defined(__APPLE__)\n"
+ << "#if defined(sun) || defined(__CYGWIN__) || defined(__APPLE__)\n"
<< "extern void *__builtin_alloca(unsigned long);\n"
<< "#define alloca(x) __builtin_alloca(x)\n"
<< "#elif defined(__FreeBSD__)\n"