only define _toupper if it isn't already defined

diff --git a/clients/userreg/userreg.c b/clients/userreg/userreg.c
index 4041b3c12b3c64cd0e8d99f0fbed2c905b5b756d..1791ce1a5381e274d506f58ef431f5555abe9c24 100644 (file)
--- a/clients/userreg/userreg.c
+++ b/clients/userreg/userreg.c
@@ -619,7 +619,9 @@ do_replace()
        } else return 0;
 }
 
+#ifndef _toupper
 #define _toupper(c) ((c) & ~0x20)
+#endif
 
 lenient_strcmp(string1, string2)
        register char  *string1, *string2;