Index: b/lib/Xm/XpmI.h
===================================================================
--- a/lib/Xm/XpmI.h
+++ b/lib/Xm/XpmI.h
@@ -129,9 +129,9 @@ extern "C" {
 extern FILE *popen();
 #endif
 
-#if defined(SYSV) || defined(SVR4) || defined(VMS) || defined(WIN32) || defined (_SVID_SOURCE)
 #include <string.h>
 
+#if defined(SYSV) || defined(SVR4) || defined(VMS) || defined(WIN32) || defined (_SVID_SOURCE)
 #ifndef index
 #define index strchr
 #endif