1# Top level configure fragment for LTO
2#   Copyright (C) 2009-2021 Free Software Foundation, Inc.
3
4#This file is part of GCC.
5
6#GCC is free software; you can redistribute it and/or modify
7#it under the terms of the GNU General Public License as published by
8#the Free Software Foundation; either version 3, or (at your option)
9#any later version.
10
11#GCC is distributed in the hope that it will be useful,
12#but WITHOUT ANY WARRANTY; without even the implied warranty of
13#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14#GNU General Public License for more details.
15
16# You should have received a copy of the GNU General Public License
17# along with GCC; see the file COPYING3.  If not see
18# <http://www.gnu.org/licenses/>.
19
20language="lto"
21compilers="lto1\$(exeext)"
22
23gtfiles="\$(srcdir)/lto/lto-tree.h \$(srcdir)/lto/lto-lang.c \$(srcdir)/lto/lto.c \$(srcdir)/lto/lto.h \$(srcdir)/lto/lto-common.h \$(srcdir)/lto/lto-common.c \$(srcdir)/lto/lto-dump.c"
24
25# LTO is a special front end.  From a user's perspective it is not
26# really a language, but a middle end feature.  However, the GIMPLE
27# reading module is implemented as a front end, so enabling LTO means
28# enabling this "language". To enable LTO functionality, use
29# --enable-lto when configuring the compiler.
30build_by_default=no
31
32# Add LTO to boot language if it is enabled.
33boot_language=$enable_lto
34