From: Chris Lattner <sabre@nondot.org>
Date: Wed, 2 Jun 2004 23:10:26 +0000 (+0000)
Subject: <alloca.h> on cygwin pulls in a ton of stuff (macros and function protos)
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=8fcf797f79cbbb1cc008589885e3d3abeed712b7;p=oota-llvm.git

<alloca.h> on cygwin pulls in a ton of stuff (macros and function protos)
that we REALLY don't want in the CBE code.

With this fix, the CBE passes all of the MultiSource tests on cygwin that
it does on linux.  Yaay!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13975 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index b73a4e40cd8..d993919f8b1 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -660,7 +660,7 @@ 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"
-      << "#ifdef sun\n"
+      << "#if defined(sun) || defined(__CYGWIN__)\n"
       << "extern void *__builtin_alloca(unsigned long);\n"
       << "#define alloca(x) __builtin_alloca(x)\n"
       << "#else\n"
diff --git a/lib/Target/CBackend/Writer.cpp b/lib/Target/CBackend/Writer.cpp
index b73a4e40cd8..d993919f8b1 100644
--- a/lib/Target/CBackend/Writer.cpp
+++ b/lib/Target/CBackend/Writer.cpp
@@ -660,7 +660,7 @@ 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"
-      << "#ifdef sun\n"
+      << "#if defined(sun) || defined(__CYGWIN__)\n"
       << "extern void *__builtin_alloca(unsigned long);\n"
       << "#define alloca(x) __builtin_alloca(x)\n"
       << "#else\n"