[newlib-cygwin] libgloss: Remove duplicate definition of environ

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=135c0c83680d5d39bfe326e497ace47c0bff1650

commit 135c0c83680d5d39bfe326e497ace47c0bff1650
Author: Stafford Horne <shorne@gmail.com>
Date:   Mon Feb 6 23:38:40 2017 +0900

    libgloss: Remove duplicate definition of environ
    
    Environ is defined in libgloss and libc:
     - libgloss/or1k/syscalls.c
     - libc/stdlib/environ.c
    
    When linking we sometimes get errors:
    or1k-elf-g++ test.o -mnewlib -mboard=or1ksim -lm -o  test
    /opt/shorne/software/or1k/lib/gcc/or1k-elf/5.3.0/../../../../or1k-elf/lib/libor1k.a(syscalls.o):(.data+0x0):
    multiple definition of `environ'
    /opt/shorne/software/or1k/lib/gcc/or1k-elf/5.3.0/../../../../or1k-elf/lib/libc.a(lib_a-environ.o):(.data+0x0):
    first defined here
    collect2: error: ld returned 1 exit status
    
    This doesnt happen after the fix. Basic things build fine too.

Diff:
---
 libgloss/or1k/syscalls.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/libgloss/or1k/syscalls.c b/libgloss/or1k/syscalls.c
index 3e2ad22..92bff49 100644
--- a/libgloss/or1k/syscalls.c
+++ b/libgloss/or1k/syscalls.c
@@ -56,9 +56,6 @@ _close_r(struct _reent *reent, int fildes)
 	return -1;
 }
 
-char *__env[1] = { 0 };
-char **environ = __env;
-
 int
 _execve_r(struct _reent *reent, const char *name, char * const *argv,
 		char * const *env)