1 files changed, 3 insertions, 3 deletions
diff --git a/zen/guid.h b/zen/guid.h
index f4af4880..8d0553ec 100644
--- a/zen/guid.h
+++ b/zen/guid.h
@@ -20,11 +20,11 @@ std::string generateGUID() //creates a 16-byte GUID
 {
     std::string guid(16, '\0');
 
-#ifndef __GLIBC__
-#error Where is GLIB?
+#ifndef __GLIBC_PREREQ
+#error Where is Glibc?
 #endif
 
-#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 25) //getentropy() requires glibc 2.25 (ldd --version) PS: CentOS 7 is on 2.17
+#if __GLIBC_PREREQ(2, 25) //getentropy() requires Glibc 2.25 (ldd --version) PS: CentOS 7 is on 2.17
     if (::getentropy(&guid[0], guid.size()) != 0)  //"The maximum permitted value for the length argument is 256"
         throw std::runtime_error(std::string(__FILE__) + '[' + numberTo<std::string>(__LINE__) + "] Failed to generate GUID." + "\n\n" +
                                  utfTo<std::string>(formatSystemError("getentropy", errno)));