Bug 1306509 - Fix a build error with -Werror=unused-variable r=njn

MozReview-Commit-ID: 4mFbamoWjoR

--HG--
extra : rebase_source : c2bc212e5a2c836576db316cb3bddc06b9f631e9

intl/locale/unix/nsUNIXCharset.cpp

@@ -116,11 +116,11 @@ nsPlatformCharset::GetDefaultCharsetForLocale(const nsAString& localeName, nsACS
 nsresult
 nsPlatformCharset::InitGetCharset(nsACString &oString)
 {
+#if HAVE_LANGINFO_CODESET
   char* nl_langinfo_codeset = nullptr;
   nsCString aCharset;
   nsresult res;
 
-#if HAVE_LANGINFO_CODESET
   nl_langinfo_codeset = nl_langinfo(CODESET);
   NS_ASSERTION(nl_langinfo_codeset, "cannot get nl_langinfo(CODESET)");