--- lcms-1.17/include/lcms.h.s390
+++ lcms-1.17/include/lcms.h
@@ -139,7 +139,8 @@
 #   define USE_BIG_ENDIAN      1
 #endif
 
-#if defined(__sgi__) || defined(__sgi) || defined(__powerpc__) || defined(sparc) || defined(__ppc__)
+#if defined(__sgi__) || defined(__sgi) || defined(__powerpc__) || defined(sparc) || defined(__ppc__) \
+                     || defined(__s390__) || defined(__s390x__)
 #   define USE_BIG_ENDIAN      1
 #endif
 
@@ -153,7 +154,7 @@
 # endif
 #endif
 
-#if __BIG_ENDIAN__
+#ifdef __BIG_ENDIAN__
 #   define USE_BIG_ENDIAN      1
 #endif