Fix a compile failure introduced by r82675 on MinGW which doesn't have

setenv().  This patch just disables the test rather than getting putenv() to
work.  Thanks to Sandeep Patel for reporting the problem.

llvm-svn: 82797

1 files changed, 12 insertions, 0 deletions

diff --git a/llvm/unittests/Support/CommandLineTest.cpp b/llvm/unittests/Support/CommandLineTest.cpp
index 70d6950..72fa24a 100644
--- a/llvm/unittests/Support/CommandLineTest.cpp
+++ b/llvm/unittests/Support/CommandLineTest.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Config/config.h"
 
 #include "gtest/gtest.h"
 
@@ -24,17 +25,26 @@ class TempEnvVar {
       : name(name) {
     const char *old_value = getenv(name);
     EXPECT_EQ(NULL, old_value) << old_value;
+#if HAVE_SETENV
     setenv(name, value, true);
+#else
+#   define SKIP_ENVIRONMENT_TESTS
+#endif
   }
 
   ~TempEnvVar() {
+#if HAVE_SETENV
+    // Assume setenv and unsetenv come together.
     unsetenv(name);
+#endif
   }
 
  private:
   const char *const name;
 };
 
+#ifndef SKIP_ENVIRONMENT_TESTS
+
 const char test_env_var[] = "LLVM_TEST_COMMAND_LINE_FLAGS";
 
 cl::opt<std::string> EnvironmentTestOption("env-test-opt");
@@ -45,4 +55,6 @@ TEST(CommandLineTest, ParseEnvironment) {
   EXPECT_EQ("hello", EnvironmentTestOption);
 }
 
+#endif  // SKIP_ENVIRONMENT_TESTS
+
 }  // anonymous namespace