Daily bump.
[official-gcc.git] / gcc / mkconfig.sh
blob70d9a23d92d11354e6aa37c6801e3a09c234b500
1 #! /bin/sh
3 # Copyright (C) 2001, 2002 Free Software Foundation, Inc.
4 # This file is part of GCC.
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 2, or (at your option)
9 # any later version.
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.
16 # You should have received a copy of the GNU General Public License
17 # along with GCC; see the file COPYING. If not, write to
18 # the Free Software Foundation, 59 Temple Place - Suite 330,
19 # Boston MA 02111-1307, USA.
22 # Generate gcc's various configuration headers:
23 # config.h, tconfig.h, bconfig.h, tm.h, and tm_p.h.
24 # $1 is the file to generate. DEFINES, HEADERS, and possibly
25 # TARGET_CPU_DEFAULT are expected to be set in the environment.
27 if [ -z "$1" ]; then
28 echo "Usage: DEFINES='list' HEADERS='list' \\" >&2
29 echo " [TARGET_CPU_DEFAULT='default'] mkconfig.sh FILE" >&2
30 exit 1
33 output=$1
34 rm -f ${output}T
36 # This converts a file name into header guard macro format.
37 hg_sed_expr='y,abcdefghijklmnopqrstuvwxyz./,ABCDEFGHIJKLMNOPQRSTUVWXYZ__,'
38 header_guard=GCC_`echo ${output} | sed -e ${hg_sed_expr}`
40 # Add multiple inclusion protection guard, part one.
41 echo "#ifndef ${header_guard}" >> ${output}T
42 echo "#define ${header_guard}" >> ${output}T
44 # Define TARGET_CPU_DEFAULT if the system wants one.
45 # This substitutes for lots of *.h files.
46 if [ "$TARGET_CPU_DEFAULT" != "" ]; then
47 echo "#define TARGET_CPU_DEFAULT ($TARGET_CPU_DEFAULT)" >> ${output}T
50 # Provide defines for other macros set in config.gcc for this file.
51 for def in $DEFINES; do
52 echo "#ifndef $def" | sed 's/=.*//' >> ${output}T
53 echo "# define $def" | sed 's/=/ /' >> ${output}T
54 echo "#endif" >> ${output}T
55 done
57 # The first entry in HEADERS may be auto-host.h or auto-build.h;
58 # it wants to be included even when not -DIN_GCC.
59 if [ -n "$HEADERS" ]; then
60 set $HEADERS
61 case "$1" in auto-* )
62 echo "#include \"$1\"" >> ${output}T
63 shift
65 esac
66 if [ $# -ge 1 ]; then
67 echo '#ifdef IN_GCC' >> ${output}T
68 for file in "$@"; do
69 echo "# include \"$file\"" >> ${output}T
70 done
71 echo '#endif' >> ${output}T
75 # If this is tconfig.h, now define USED_FOR_TARGET. If this is tm.h,
76 # now include insn-constants.h and insn-flags.h only if IN_GCC is
77 # defined but neither GENERATOR_FILE nor USED_FOR_TARGET is defined.
78 # (Much of this is temporary.)
80 case $output in
81 tconfig.h )
82 cat >> ${output}T <<EOF
83 #define USED_FOR_TARGET
84 EOF
86 tm.h )
87 cat >> ${output}T <<EOF
88 #if defined IN_GCC && !defined GENERATOR_FILE && !defined USED_FOR_TARGET
89 # include "insn-constants.h"
90 # include "insn-flags.h"
91 #endif
92 EOF
94 esac
96 # Add multiple inclusion protection guard, part two.
97 echo "#endif /* ${header_guard} */" >> ${output}T
99 # Avoid changing the actual file if possible.
100 if [ -f $output ] && cmp ${output}T $output >/dev/null 2>&1; then
101 echo $output is unchanged >&2
102 rm -f ${output}T
103 else
104 mv -f ${output}T $output
107 # Touch a stamp file for Make's benefit.
108 rm -f cs-$output
109 echo timestamp > cs-$output