Merge pull request #30 from thtrummer/develop

Fix warning, build error, for GCC under Cygwin

src/unique_path.cpp

@@ -28,7 +28,9 @@
 # else // BOOST_WINDOWS_API
 #   include <windows.h>
 #   include <wincrypt.h>
-#   pragma comment(lib, "Advapi32.lib")
+#   ifdef _MSC_VER
+#      pragma comment(lib, "Advapi32.lib")
+#   endif
 # endif
 
 namespace {

test/operations_test.cpp

@@ -56,7 +56,7 @@ inline std::wstring convert(const char* c)
    return std::wstring(s.begin(), s.end());
 }
 
-#if defined(_MSC_VER) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+#if defined(_MSC_VER)
 //  Note: these three setenv* functions are not general solutions for the missing
 //  setenv* problem on VC++. See Microsoft's _putenv for that need, and ticker #7018
 //  for discussion and rationale for returning void for this test program, which needs