Avoid strndup in gcc.c (PR bootstrap/67363)

[Rainer Orth]

As described in the PR, this patch

        https://gcc.gnu.org/ml/gcc-patches/2015-08/msg01549.html

broke bootstrap on a couple of platforms that lack strndup in libc.
Fixed as follows, matching other uses of xstrndup in the gcc
subdirectory.

Bootstrapped on i386-pc-solaris2.10, installed on mainline as obvious.

        Rainer


2015-08-31  Rainer Orth  <r...@cebitec.uni-bielefeld.de>

        PR bootstrap/67363
        * gcc.c (env_manager::xput): Replace strndup by xstrndup.


# HG changeset patch
# Parent  1b9570b3c98bf549aba6dee203d37955e96d744d
Avoid strndup in gcc.c (PR bootstrap/67363)

diff --git a/gcc/gcc.c b/gcc/gcc.c
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -123,7 +123,7 @@ env_manager::xput (const char *string)
       gcc_assert (equals);
 
       struct kv kv;
-      kv.m_key = strndup (string, equals - string);
+      kv.m_key = xstrndup (string, equals - string);
       const char *cur_value = ::getenv (kv.m_key);
       if (m_debug)
 	fprintf (stderr, "saving old value: %s\n",cur_value);

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University