Prepare for radical source tree reorganization.zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 154 insertions, 0 deletions

diff --git a/REORG.TODO/posix/posix-envs.def b/REORG.TODO/posix/posix-envs.def
new file mode 100644
index 0000000000..fecbcfe2ab
--- /dev/null
+++ b/REORG.TODO/posix/posix-envs.def
@@ -0,0 +1,154 @@
+/* Handle POSIX compilation environments that may or may not be present.
+   Copyright (C) 2012-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Before including this file, the including file must have included
+   <bits/environments.h> (generally via <unistd.h>) and must have
+   defined the following macros, exactly one of which will be called
+   for each POSIX environment:
+
+   KNOWN_PRESENT_ENVIRONMENT, for POSIX environments that are known to
+   be supported in this libc.
+
+   KNOWN_ABSENT_ENVIRONMENT, for POSIX environments that are known not
+   to be supported on this system.
+
+   UNKNOWN_ENVIRONMENT, for POSIX environments not supported in this
+   libc but possibly supported by another libc on the same system,
+   that can be selected using the same compiler but different
+   compilation options.
+
+   Each macro has arguments (SC_PREFIX, ENV_PREFIX, SUFFIX).  The
+   corresponding argument to sysconf is _SC_##SC_PREFIX##_##SUFFIX.
+   The environment name, as used with getconf, is
+   ENV_PREFIX##_##SUFFIX, and the corresponding macro is the same with
+   a leading "_".
+
+   In addition, the macros START_ENV_GROUP and END_ENV_GROUP must be
+   defined.  These are called with arguments V5, V6, V7 before and
+   after the relevant groups of environments.  */
+
+#define NEED_SPEC_ARRAY 0
+#include <posix-conf-vars.h>
+
+START_ENV_GROUP (V7)
+
+#if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFF32)
+KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
+#elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFF32)
+KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
+#else
+UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
+#endif
+
+#if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFFBIG)
+KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
+#elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFFBIG)
+KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
+#else
+UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
+#endif
+
+#if CONF_IS_DEFINED_SET (_POSIX_V7_LP64_OFF64)
+KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
+#elif CONF_IS_DEFINED (_POSIX_V7_LP64_OFF64)
+KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
+#else
+UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
+#endif
+
+#if CONF_IS_DEFINED_SET (_POSIX_V7_LPBIG_OFFBIG)
+KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
+#elif CONF_IS_DEFINED (_POSIX_V7_LPBIG_OFFBIG)
+KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
+#else
+UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
+#endif
+
+END_ENV_GROUP (V7)
+
+START_ENV_GROUP (V6)
+
+#if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFF32)
+KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
+#elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFF32)
+KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
+#else
+UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
+#endif
+
+#if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFFBIG)
+KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
+#elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFFBIG)
+KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
+#else
+UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
+#endif
+
+#if CONF_IS_DEFINED_SET (_POSIX_V6_LP64_OFF64)
+KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
+#elif CONF_IS_DEFINED (_POSIX_V6_LP64_OFF64)
+KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
+#else
+UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
+#endif
+
+#if CONF_IS_DEFINED_SET (_POSIX_V6_LPBIG_OFFBIG)
+KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
+#elif CONF_IS_DEFINED (_POSIX_V6_LPBIG_OFFBIG)
+KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
+#else
+UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
+#endif
+
+END_ENV_GROUP (V6)
+
+START_ENV_GROUP (V5)
+
+#if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFF32)
+KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
+#elif CONF_IS_DEFINED (_XBS5_ILP32_OFF32)
+KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
+#else
+UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
+#endif
+
+#if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFFBIG)
+KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
+#elif CONF_IS_DEFINED (_XBS5_ILP32_OFFBIG)
+KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
+#else
+UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
+#endif
+
+#if CONF_IS_DEFINED_SET (_XBS5_LP64_OFF64)
+KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
+#elif CONF_IS_DEFINED (_XBS5_LP64_OFF64)
+KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
+#else
+UNKNOWN_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
+#endif
+
+#if CONF_IS_DEFINED_SET (_XBS5_LPBIG_OFFBIG)
+KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
+#elif CONF_IS_DEFINED (_XBS5_LPBIG_OFFBIG)
+KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
+#else
+UNKNOWN_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
+#endif
+
+END_ENV_GROUP (V5)