Share gdb/environ.[ch] with gdbserver

We will need access to the environment functions when we share
fork_inferior between GDB and gdbserver, therefore we simply make the
API on gdb/environ.[ch] available on common/.  No extra adjustments
are needed to make it compile on gdbserver.

gdb/ChangeLog:
2017-03-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SFILES): Replace "environ.c" with
	"common/environ.c".
	(HFILES_NO_SRCDIR): Likewise, for "environ.h".
	* environ.c: Include "common-defs.h" instead of "defs.h.  Moved
	to...
	* common/environ.c: ... here.
	* environ.h: Moved to...
	* common/environ.h: ... here.

gdb/gdbserver/ChangeLog:
2017-03-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SFILES): Add "common/environ.c".
	(OBJS): Add "common/environ.h".

1 files changed, 0 insertions, 49 deletions

diff --git a/gdb/environ.h b/gdb/environ.h
deleted file mode 100644
index 3ace69e..0000000
--- a/gdb/environ.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Header for environment manipulation library.
-   Copyright (C) 1989-2017 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#if !defined (ENVIRON_H)
-#define ENVIRON_H 1
-
-/* We manipulate environments represented as these structures.  */
-
-struct gdb_environ
-  {
-    /* Number of usable slots allocated in VECTOR.
-       VECTOR always has one slot not counted here,
-       to hold the terminating zero.  */
-    int allocated;
-    /* A vector of slots, ALLOCATED + 1 of them.
-       The first few slots contain strings "VAR=VALUE"
-       and the next one contains zero.
-       Then come some unused slots.  */
-    char **vector;
-  };
-
-extern struct gdb_environ *make_environ (void);
-
-extern void free_environ (struct gdb_environ *);
-
-extern void init_environ (struct gdb_environ *);
-
-extern char *get_in_environ (const struct gdb_environ *, const char *);
-
-extern void set_in_environ (struct gdb_environ *, const char *, const char *);
-
-extern void unset_in_environ (struct gdb_environ *, const char *);
-
-extern char **environ_vector (struct gdb_environ *);
-
-#endif /* defined (ENVIRON_H) */