diff --git a/binding/binding-mri.cpp b/binding/binding-mri.cpp
index 7250272..e5d8aad 100644
--- a/binding/binding-mri.cpp
+++ b/binding/binding-mri.cpp
@@ -68,7 +68,9 @@ extern const char module_rpg3[];
 static void mriBindingExecute();
 static void mriBindingTerminate();
 static void mriBindingReset();
+#ifdef __WIN32__
 static void configureWindowsStreams();
+#endif
 
 ScriptBinding scriptBindingImpl = {mriBindingExecute, mriBindingTerminate,
     mriBindingReset};
diff --git a/macos/mkxp-z.xcodeproj/project.pbxproj b/macos/mkxp-z.xcodeproj/project.pbxproj
index 4f2f7c6..11b4253 100644
--- a/macos/mkxp-z.xcodeproj/project.pbxproj
+++ b/macos/mkxp-z.xcodeproj/project.pbxproj
@@ -749,6 +749,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		3B012198261544A0001E574A /* string-util.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "string-util.h"; sourceTree = "<group>"; };
 		3B10EC832568E78400372D13 /* icon.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; name = icon.png; path = ../assets/icon.png; sourceTree = "<group>"; };
 		3B10EC842568E78400372D13 /* liberation.ttf */ = {isa = PBXFileReference; lastKnownFileType = file; name = liberation.ttf; path = ../assets/liberation.ttf; sourceTree = "<group>"; };
 		3B10EC852568E78400372D13 /* wqymicrohei.ttf */ = {isa = PBXFileReference; lastKnownFileType = file; name = wqymicrohei.ttf; path = ../assets/wqymicrohei.ttf; sourceTree = "<group>"; };
@@ -1321,6 +1322,7 @@
 				3B10ED3D2568E95D00372D13 /* serializable.h */,
 				3B10ED3E2568E95D00372D13 /* disposable.h */,
 				3B10ED3F2568E95D00372D13 /* serial-util.h */,
+				3B012198261544A0001E574A /* string-util.h */,
 				3B10ED402568E95D00372D13 /* util.h */,
 				3B10ED412568E95D00372D13 /* exception.h */,
 				3B10ED422568E95D00372D13 /* debugwriter.h */,
diff --git a/meson_options.txt b/meson_options.txt
index d209e61..d4e4516 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -2,7 +2,6 @@ option('mri_version', type: 'string', value: '3.0', description: 'Version of MRI
 option('mri_includes', type: 'string', value: '', description: 'Ruby manual include path')
 option('mri_libpath', type: 'string', value: '', description: 'Ruby manual lib path')
 option('mri_library', type: 'string', value: '', description: 'Ruby manual link name')
-option('macos_min_version', type: 'string', value: '', description: 'Minimum macOS system version to support (does not affect dependencies)')
 option('force32', type: 'boolean', value: false, description: 'Force compiler to build a 32-bit executable')
 
 option('cxx11_experimental', type: 'boolean', value: false, description: 'Toggles between using ghc/filesystem or C++11 <experimental/filesystem>')
diff --git a/src/util/string-util.h b/src/util/string-util.h
index 2d771f2..b89ab0e 100644
--- a/src/util/string-util.h
+++ b/src/util/string-util.h
@@ -1,6 +1,8 @@
 #ifndef STRING_UTIL_H
 #define STRING_UTIL_H
 
+#ifndef __MACOSX__
+
 #include <string>
 
 // Copies the given text with additional newlines every X characters.
@@ -33,9 +35,13 @@ static std::string copyWithNewlines(const char *input, const unsigned limit)
     return output;
 }
 
+/*
 static std::string copyWithNewlines(const std::string& input, const unsigned limit)
 {
 	return copyWithNewlines(input.c_str(), limit);
 }
+ */
+
+#endif
 
 #endif // STRING_UTIL_H