On Jun 11 23:55, Vasyl Khalak wrote:
> I have tried to compile 0.18.2 gettext on x64 Cygwin, and got
> "undefined reference to `environ'", where is the symbol?
>
> user@host /cygdrive/c/cygwin
>
> 32 bit:
> $ nm lib/libcygwin.a
> 00000000 I __imp____cygwin_environ
> 00000000 I __nm____cygwin_environ
> ...
> 00000000 B _environ
>
> $ nm bin/cygwin1.dll
> 61227a44 B ___cygwin_environ
> 6102db00 T _cur_environ@0
> 61184444 D _main_environ
>
> 64 bit:
> $ nm /usr/lib/libcygwin.a
> 0000000000000000 I __imp_environ
> 0000000000000000 I __nm_environ
>
> $ nm /usr/bin/cygwin1.dll
> 00000001802a4778 B __cygwin_environ
environ is the exported symbol referencing the internal __cygwin_environ
variable on x86_64. Linking against and accessing it works for me:
$ uname -a
CYGWIN_NT-6.2 VMBERT864 1.7.21(0.266/5/3) 2013-06-11 21:43 x86_64 Cygwin
$ cat > envtest.c <<EOF
#include <stdio.h>
int
main ()
{
extern char **environ;
printf ("environ: %p first entry: <%s>\n", &environ, environ[0]);
return 0;
}
EOF
$ gcc -o envtest envtest.c
$ ./envtest
environ: 0x1802a4778 first entry: <ALLUSERSPROFILE=C:\ProgramData>
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
