3 files changed, 16 insertions, 0 deletions
diff --git a/include/cru/common/ErrnoException.hpp b/include/cru/common/ErrnoException.hpp
index 6feb1aca..d1390cf2 100644
--- a/include/cru/common/ErrnoException.hpp
+++ b/include/cru/common/ErrnoException.hpp
@@ -1,5 +1,9 @@
 #pragma once
 
+#include "PreConfig.hpp"
+
+#ifdef CRU_PLATFORM_UNIX
+
 #include "Exception.hpp"
 
 namespace cru {
@@ -20,3 +24,5 @@ class ErrnoException : public Exception {
   int errno_code_;
 };
 }  // namespace cru
+
+#endif
diff --git a/include/cru/common/PreConfig.hpp b/include/cru/common/PreConfig.hpp
index 6011dc54..ba0f5bd8 100644
--- a/include/cru/common/PreConfig.hpp
+++ b/include/cru/common/PreConfig.hpp
@@ -10,3 +10,7 @@
 #ifdef CRU_PLATFORM_WINDOWS
 #define _CRT_SECURE_NO_WARNINGS
 #endif
+
+#if defined(CRU_PLATFORM_OSX) || defined(CRU_PLATFORM_LINUX)
+#define CRU_PLATFORM_UNIX
+#endif
diff --git a/include/cru/common/io/UnixFileStream.hpp b/include/cru/common/io/UnixFileStream.hpp
index c8c3fe52..afeab184 100644
--- a/include/cru/common/io/UnixFileStream.hpp
+++ b/include/cru/common/io/UnixFileStream.hpp
@@ -1,5 +1,9 @@
 #pragma once
 
+#include "../PreConfig.hpp"
+
+#ifdef CRU_PLATFORM_UNIX
+
 #include "../String.hpp"
 #include "OpenFileFlag.hpp"
 #include "Stream.hpp"
@@ -39,3 +43,5 @@ class UnixFileStream : public Stream {
   bool closed_ = false;
 };
 }  // namespace cru::io
+
+#endif