[PATCH] Fix fc-prototypes usage with C_INT64_T and non LP64 Targets.

[Andrew Pinski via Fortran]

The problem here is we were outputing long_long instead of
"long long". This was just an oversight and a missing check.

Committed as obvious after a bootstrap/test on x86_64-linux-gnu.

gcc/fortran/ChangeLog:

        * dump-parse-tree.cc (get_c_type_name): Fix "long_long"
        type name to be "long long". Add a comment on why adding
        2 to the name too.
---
 gcc/fortran/dump-parse-tree.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gcc/fortran/dump-parse-tree.cc b/gcc/fortran/dump-parse-tree.cc
index 3b24bdc1a6c..f4490da6a19 100644
--- a/gcc/fortran/dump-parse-tree.cc
+++ b/gcc/fortran/dump-parse-tree.cc
@@ -3696,7 +3696,10 @@ get_c_type_name (gfc_typespec *ts, gfc_array_spec *as, 
const char **pre,
          if (c_interop_kinds_table[i].f90_type == ts->type
              && c_interop_kinds_table[i].value == ts->kind)
            {
+             /* Skip over 'c_'. */
              *type_name = c_interop_kinds_table[i].name + 2;
+             if (strcmp (*type_name, "long_long") == 0)
+               *type_name = "long long";
              if (strcmp (*type_name, "signed_char") == 0)
                *type_name = "signed char";
              else if (strcmp (*type_name, "size_t") == 0)
-- 
2.17.1