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Diffstat (limited to 'include/cru/common/platform/osx/Convert.h')
-rw-r--r--include/cru/common/platform/osx/Convert.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/cru/common/platform/osx/Convert.h b/include/cru/common/platform/osx/Convert.h
index 503576be..395cbbae 100644
--- a/include/cru/common/platform/osx/Convert.h
+++ b/include/cru/common/platform/osx/Convert.h
@@ -1,6 +1,9 @@
#pragma once
#include "../../PreConfig.h"
-#ifdef CRU_PLATFORM_OSX
+
+#ifndef CRU_PLATFORM_OSX
+#error "This file can only be included on osx."
+#endif
#include "../../String.h"
@@ -13,5 +16,3 @@ String Convert(CFStringRef string);
CFRange Convert(const Range& range);
Range Convert(const CFRange& range);
} // namespace cru::platform::osx
-
-#endif