diff --git a/cmake/ConfigureChecks.cmake b/cmake/ConfigureChecks.cmake
index 4cc310914..cadf8d346 100644
--- a/cmake/ConfigureChecks.cmake
+++ b/cmake/ConfigureChecks.cmake
@@ -227,10 +227,13 @@ IF (NOT LIBATOMIC_NOT_NEEDED)
     set(ATOMIC_LIBRARY "atomic")
 endif()
 
-# Check if mbrtowc implementation attempts to encode invalid UTF-8 sequences
-# Known culprits: at least some versions of macOS (confirmed Snow Leopard and Yosemite)
-try_run(mbrtowc_invalid_utf8_exit mbrtowc_invalid_utf8_compiles ${CMAKE_CURRENT_BINARY_DIR}
-    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/checks/mbrtowc_invalid_utf8.cpp")
-IF ("${mbrtowc_invalid_utf8_compiles}" AND ("${mbrtowc_invalid_utf8_exit}" EQUAL 1))
-    SET(HAVE_BROKEN_MBRTOWC_UTF8 1)
+IF (APPLE)
+    # Check if mbrtowc implementation attempts to encode invalid UTF-8 sequences
+    # Known culprits: at least some versions of macOS (confirmed Snow Leopard and Yosemite)
+    try_run(mbrtowc_invalid_utf8_exit mbrtowc_invalid_utf8_compiles ${CMAKE_CURRENT_BINARY_DIR}
+      "${CMAKE_CURRENT_SOURCE_DIR}/cmake/checks/mbrtowc_invalid_utf8.cpp")
+    IF ("${mbrtowc_invalid_utf8_compiles}" AND ("${mbrtowc_invalid_utf8_exit}" EQUAL 1))
+        SET(HAVE_BROKEN_MBRTOWC_UTF8 1)
+    ENDIF()
 ENDIF()
+