[PATCH,FORTRAN] Variable "value" possibly unused in io/read.c

[David Edelsohn]

All uses of "value" are protected by

#if defined HAVE_GFC_REAL_16 || defined HAVE_GFC_REAL_10

so it may be unused, which generates a warning on some platforms.

Bootstrapped on powerpc-ibm-aix7.1.0.0.

Okay for trunk?

Thanks, David


       * io/read.c (si_max): Annotate value with attribute unused.

Index: io/read.c
===================================================================
--- io/read.c   (revision 198587)
+++ io/read.c   (working copy)
@@ -91,7 +91,7 @@
 GFC_UINTEGER_LARGEST
 si_max (int length)
 {
-  GFC_UINTEGER_LARGEST value;
+  GFC_UINTEGER_LARGEST value __attribute__((unused));

   switch (length)
       {