diff --git a/CMakeLists.txt b/CMakeLists.txt
index e642734a33c..a73871109ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -71,8 +71,13 @@ if (USE_STATIC_LIBRARIES)
     list(REVERSE CMAKE_FIND_LIBRARY_SUFFIXES)
 endif ()
 
-option (USE_INTERNAL_MEMCPY "Use internal implementation of 'memcpy' function instead of provided by libc. Only for x86_64." ON)
-option (GLIBC_COMPATIBILITY "Set to TRUE to enable compatibility with older glibc libraries. Implies USE_INTERNAL_MEMCPY." OFF)
+if (CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*")
+    option (USE_INTERNAL_MEMCPY "Use internal implementation of 'memcpy' function instead of provided by libc. Only for x86_64." ON)
+
+    if (CMAKE_SYSTEM MATCHES "Linux")
+        option (GLIBC_COMPATIBILITY "Set to TRUE to enable compatibility with older glibc libraries. Only for x86_64, Linux. Implies USE_INTERNAL_MEMCPY." ON)
+    endif()
+endif ()
 
 if (GLIBC_COMPATIBILITY)
     set (USE_INTERNAL_MEMCPY ON)
diff --git a/libs/libglibc-compatibility/glibc-compatibility.c b/libs/libglibc-compatibility/glibc-compatibility.c
index 9a8b8d67f36..5f9d8106794 100644
--- a/libs/libglibc-compatibility/glibc-compatibility.c
+++ b/libs/libglibc-compatibility/glibc-compatibility.c
@@ -1,8 +1,6 @@
 /** Allows to build programs with libc 2.18 and run on systems with at least libc 2.4,
   *  such as Ubuntu Lucid or CentOS 6.
   *
-  * Highly experimental, not recommended, disabled by default.
-  *
   * Also look at http://www.lightofdawn.org/wiki/wiki.cgi/NewAppsOnOldGlibc
   */