On 2/2/2011 4:19 PM, Corinna Vinschen wrote:
> On Feb 2 19:58, Bruno Haible wrote:
>> charset.alias is requested on Linux, even though it normally does not exist,
>> so that packagers and users have a chance to modify the behaviour.
>
> I beg to keep this choice to Cygwin users as well. It will be empty by
> default as well. The supported codesets are documented in
> http://cygwin.com/cygwin-ug-net/setup-locale.html#setup-locale-charsetlist
> If some weird alias is required, the user can add it to charset.alias.
> That's the optimal solution.
FWIW, using a fresh git clone of libiconv
3cdff14a3cc549dc4ccfe02dca46e73b1e7a68c6
Sat Jan 29 18:34:14 2011 +0100)
bootstrapped using a fresh gnulib
a036b7684f9671ee53999773785d1865603c3849
Tue Feb 1 10:04:17 2011 -0800
and no other patches, libiconv + cygwin-1.7.7 [note: NOT 1.7.8pre]
works, passes its own self-tests, and passes Corinna's original test
case that spawned this thread.
Bruno's change in libiconv was:
- This is also the case on native Woe32 systems. */
-#if __STDC_ISO_10646__ || ((defined _WIN32 || defined __WIN32__) &&
!defined __CYGWIN__)
+ This is also the case on native Woe32 systems and Cygwin >=
1.7, where
+ we know that it is UTF-16. */
+#if ((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__) ||
(defined __CYGWIN__ && CYGWIN_VERSION_DLL_MAJOR >= 1007)
...some code...
+#elif __STDC_ISO_10646__
...other code...
#endif
repeated at various places. Obviously the use of
CYGWIN_VERSION_DLL_MAJOR means there is a
+#ifdef __CYGWIN__
+#include <cygwin/version.h>
+#endif
in there, too.
Now, this configuration does NOT include:
1) Corinna's suggested change to localcharset.c that modified
get_charset_alias() to use charset.alias on cygwin instead of
hardcoding the alias list, NOR the change in that file to
locale_charset() to deal with copying the value returned by
nl_langinfo() and remove some special cygwin workarounds involving
GetACP().
2) the relocation changes to avoid deprecated path conversion
functions and to do things on cygwin "the linux way".
http://lists.gnu.org/archive/html/bug-gnulib/2011-01/msg00522.html
I tested both with and without --enable-relocatable...
>> But such a user will then write a mail to a mailing list, and it will take
>> time for me (or someone else) to investigate and answer it. By writing
>> #if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
>> I avoid this potential problem.
>
> Ok. However, the other variation
>
> #if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__
>
> should be only used in very rare circumstances. Usually it just means
> that some unnecessary Windowism is used on Cygwin, and that there's
> probably a POSIXy equivalent. If not, kick us here on the list and
> we can discuss it.
See above, with the
#if ((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__) ||
(defined __CYGWIN__ && CYGWIN_VERSION_DLL_MAJOR >= 1007)
formulation. It's not an erroneous use of a windowism, it just reflects
that cygwin's unicode impl shares characteristics with the underlying
win32 unicode support.
--
Chuck
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