On Wed, Apr 24, 2013 at 6:15 PM, Max Balduino
>> On Apr 24 17:34, Max Balduino wrote:
>>> Dear all,
>>>
>>> Looks like there's something wrong here:
>>>
>>> userwinemt@ioxp /usr/src/vpnc-0.5.2
>>> $ make install
>>> LC_ALL=C perl -w ./enum2debug.pl isakmp.h >vpnc-debug.c 2>vpnc-debug.h
>>> gcc -O3 -g -W -Wall -Wmissing-declarations -Wwrite-strings
>>> -DVERSION=\"0.5.2\" -c -o sysdep.o sysdep.c
>>> In file included from /usr/include/cygwin/in.h:267,
>>> from /usr/include/netinet/in.h:14,
>>> from sysdep.h:23,
>>> from sysdep.c:71:
>>> /usr/include/cygwin/in6.h:76: error: redefinition of `struct in6_addr'
>>>
>>> I'm compiling vpnc-0.5.2 on a fresh cygwin environment, just
>>> downloaded from stable distribution. I'm using gcc version 3.4.4
>>> (cygming special, gdc 0.12, using dmd 0.125). I've googled for it and
>>> found a post reading "Problems with latest cygwin + latest sources"
>>> that claims for the same error.
>>>
>>> Anybody has seen this before or has a quick workaround, please?
>>
>> - You are not using the right mailing list for this kind of question.
>> Use the cygwin AT cygwin DOT com list instead.
>>
>> - You're using an old and outdated compiler. Install the gcc4 package
>> instead.
>>
>> - You're missing to paste the entire error message. Gcc usually prints
>> where the clashing definition is defined, too. But maybe that's just
>> in gcc 4.x.
>>
>> - Last but not least, a simple testcase would be helpful.
>>
>> Without that I can only guess: The file includes winsock.h because
>> it wrongly treats Cygwin as Windows environment. Don't do that.
>>
>>
>> Corinna
>>
>> --
>> Corinna Vinschen Please, send mails regarding Cygwin to
>> Cygwin Maintainer cygwin AT cygwin DOT com
>> Red Hat
>
> First of all thanks a *LOT* for your quick answer!
>
> OK, sorry for having used the wrong mail-list! I re-compiled under gcc
> version 4.5.3 (GCC) getting same result.
>
> I'm trying to compile an app, that's why I was posting on cygwin-apps
> AT cygwin DOT com. You can find it at
> http://www.unix-ag.uni-kl.de/~massar/vpnc/ it's a cisco-compatible vpn
> client.
>
> I'm not sure what did you mean "a simple testcase would be helpful"?
> If it's the piece of code, then Here it is:
>
> from sysdep.h:
>
>
> #ifndef __SYSDEP_H__
> #define __SYSDEP_H__
>
> /*
> * Different systems define different macros.
> * For vpnc, this list should be used as
> * reference:
> *
> * __linux__
> * __NetBSD__
> * __OpenBSD__
> * __FreeBSD__
> * __DragonFly__
> * __APPLE__ Darwin / MacOS X
> * __sun__SunOS / Solaris
> * __CYGWIN__
> * __SKYOS__
> *
> */
>
> #include
> #include
> #include
>
> #if !defined(__CYGWIN__)
> #include
> #include
> #include
> #endif
>
> #include "config.h"
>
> int tun_open(char *dev, enum if_mode_enum mode);
> int tun_close(int fd, char *dev);
> int tun_write(int fd, unsigned char *buf, int len);
> int tun_read(int fd, unsigned char *buf, int len);
> int tun_get_hwaddr(int fd, char *dev, uint8_t *hwaddr);
>
> /***/
> #if defined(__linux__) || defined(__GLIBC__)
> #include
>
> #define HAVE_VASPRINTF 1
> #define HAVE_ASPRINTF 1
> #define HAVE_ERROR 1
> #define HAVE_GETLINE 1
> #define HAVE_UNSETENV 1
> #define HAVE_SETENV1
> #endif
> ...
>
>
> As of the complete gcc error dump, here it also is:
>
> userwinemt@ioxp /usr/src/vpnc-0.5.3
> $ make install
> gcc -O3 -g -W -Wall -Wmissing-declarations -Wwrite-strings
> -DVERSION=\"0.5.3\" -c -o sysdep.o sysdep.c
> In file included from /usr/include/cygwin/in.h:267:0,
> from /usr/include/netinet/in.h:14,
> from sysdep.h:23,
> from sysdep.c:71:
> /usr/include/cygwin/in6.h:75:8: error: redefinition of ‘struct in6_addr’
> /usr/lib/gcc/i686-pc-cygwin/4.5.3/../../../../include/w32api/in6addr.h:17:16:
> note: originally defined here
> In file included from sysdep.h:31:0,
> from sysdep.c:71:
> config.h:131:83: warning: ‘struct debug_strings’ declared inside parameter
> list
> config.h:131:83: warning: its scope is only this definition or
> declaration, which is probab
