bz1311954 - multilib variations in LC_COLLATE files, with fixes

[Gabriel F. T. Gomes]

On Thu, 21 Mar 2019, DJ Delorie wrote:

>"Carlos O'Donell" <codonell@redhat.com> writes:
>> This is a user-visible bug and so needs a bugzilla entry, please create
>> one, and reference the ml discussion, and reference it here.
>>
>> OK for master with changelog that refs the bug # and commit first line
>> that refs the bug #.  
>
>Done: https://sourceware.org/bugzilla/show_bug.cgi?id=24372

I have seen builds errors on powerppc after this patch.  The following
patch fixes them...

OK for master?

From a1a766ed231b2a01e0a2adad2982fc529ce9ca2d Mon Sep 17 00:00:00 2001
From: "Gabriel F. T. Gomes" <gabriel@inconstante.eti.br>
Date: Thu, 21 Mar 2019 17:24:30 -0300
Subject: [PATCH] Fix parentheses error in iconvconfig.c and ld-collate.c
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When -Werror=parentheses is in use, iconvconfig.c builds fail with:

  iconvconfig.c: In function ‘write_output’:
  iconvconfig.c:1084:34: error: suggest parentheses around ‘+’ inside ‘>>’ [-Werror=parentheses]
     hash_size = next_prime (nnames + nnames >> 1);
                             ~~~~~~~^~~~~~~~

This patch adds parentheses to the expression.  Not where suggested by
the compiler warning, but where it produces the expected result, i.e.:
where it has the effect of multiplying nnames by 1.5.

Likewise for elem_size in ld-collate.c.

Tested for powerpc64le.

	* iconv/iconvconfig.c (write_output): Add parentheses to get rid
	of compiler warning.
	* locale/programs/ld-collate.c (collate_output): Likewise.
---
 iconv/iconvconfig.c          | 2 +-
 locale/programs/ld-collate.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/iconv/iconvconfig.c b/iconv/iconvconfig.c
index 1e6066cdf0..f75e46dc16 100644
--- a/iconv/iconvconfig.c
+++ b/iconv/iconvconfig.c
@@ -1081,7 +1081,7 @@ write_output (void)
      Creating a perfect hash table is not reasonable here.  Therefore
      we use open hashing and a table size which is the next prime 50%
      larger than the number of strings.  */
-  hash_size = next_prime (nnames + nnames >> 1);
+  hash_size = next_prime (nnames + (nnames >> 1));
   hash_table = (struct hash_entry *) xcalloc (hash_size,
 					      sizeof (struct hash_entry));
   /* Fill the hash table.  */
diff --git a/locale/programs/ld-collate.c b/locale/programs/ld-collate.c
index 19b23c2453..6baab6cfb0 100644
--- a/locale/programs/ld-collate.c
+++ b/locale/programs/ld-collate.c
@@ -2402,7 +2402,7 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap,
       runp = runp->next;
     }
   /* Add 50% and find the next prime number.  */
-  elem_size = next_prime (elem_size + elem_size >> 1);
+  elem_size = next_prime (elem_size + (elem_size >> 1));
 
   /* Allocate the table.  Each entry consists of two words: the hash
      value and an index in a secondary table which provides the index
-- 
2.11.0