1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
#! /bin/sh
# Copyright (C) 2011-2021 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 2, 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 <https://www.gnu.org/licenses/>.
# Check that many different Yacc parsers (both C and C++) can co-exists
# in the same directory.
required='cc c++ yacc'
. test-init.sh
cat >> configure.ac << 'END'
AC_PROG_CC
AC_PROG_CXX
AC_PROG_YACC
AC_OUTPUT
END
cat > Makefile.am << 'END'
bin_PROGRAMS = c1 c2 cxx1 cxx2 cxx3
AM_YFLAGS = -d
c1_SOURCES = p.y p.h 1.c
c2_SOURCES = p.y 2.c
c2_YFLAGS =
cxx1_SOURCES = parse.yy main1.cc parse.hh
cxx2_SOURCES = parse2.y++ main2.c++
cxx2_YFLAGS =
cxx3_SOURCES = parse3.yxx main3.cxx
BUILT_SOURCES = p.h parse.hh parse3.hxx
END
# The content of all the .c and .y files created below is valid C but
# deliberately invalid C++.
# Vice versa, the content of all the .c++, .cxx, .cc, .y++, .yxx and
# .yy files created below is valid C++ but deliberately invalid C.
cat > p.y <<'END'
%{
int yylex (void) { int new = 0; return new; }
void yyerror (const char *s) {}
%}
%token ZARDOZ
%%
x : 'x' {};
%%
END
cat > 1.c <<'END'
#include "p.h"
int main ()
{
int new = ZARDOZ;
return yyparse () + new;
}
END
cat > 2.c <<'END'
int main ()
{
int yyparse ();
int new = 0;
return yyparse () + new;
}
END
cat > parse.yy <<'END'
%{
#include <cstdlib>
#include "parse.hh"
int yylex (void) { return 0; }
void yyerror (const char *s) {}
%}
%token FOOBAR
%%
x : 'x' {};
%%
END
cat > parse2.y++ <<'END'
%{
#include <cstdlib>
int yylex (void) { return 0; }
void yyerror (const char *s) {}
%}
%%
x : 'x' {};
%%
END
cat > main1.cc <<'END'
using namespace std;
#include "parse.hh"
int main (int argc, char **argv)
{
int yyparse (void);
return yyparse () + FOOBAR;
}
END
cat > main2.c++ <<'END'
using namespace std;
int main (int argc, char **argv)
{
int yyparse (void);
return yyparse ();
}
END
edit () { sed -e 's/FOOBAR/BAZQUUX/' -e 's/"parse\.hh"/"parse3.hxx"/'; }
edit <parse.yy >parse3.yxx
edit <main1.cc >main3.cxx
$ACLOCAL
$AUTOCONF
$AUTOMAKE -a
# Try a VPATH and by default serial build first, and then an in-tree
# and by default parallel build.
for try in 0 1; do
if test $try -eq 0; then
# VPATH serial build.
mkdir build
cd build
srcdir=..
debug_info="ls -l . $srcdir"
run_make=$MAKE
elif test $try -eq 1; then
# In-tree parallel build.
srcdir=.
debug_info="ls -l"
case $MAKE in
*\ -j*)
# Degree of parallelism already specified by the user: do
# not override it.
run_make=$MAKE;;
*)
# Some make implementations (e.g., HP-UX) don't grok '-j',
# some require no space between '-j' and the number of jobs
# (e.g., older GNU make versions), and some *do* require a
# space between '-j' and the number of jobs (e.g., Solaris
# dmake). We need a runtime test to see what works.
echo 'all:' > Makefile
for run_make in "$MAKE -j3" "$MAKE -j 3" "$MAKE"; do
$run_make && break
done
rm -f Makefile
esac
else
echo "$me: invalid value of \$try '$try'" >&2
exit 99
fi
$srcdir/configure
$run_make
$debug_info
test -f p.c
test -f p.h
test -f c2-p.c
test ! -e c2-p.h
test -f parse.cc
test -f parse.hh
test -f parse3.cxx
test -f parse3.hxx
test -f cxx2-parse2.c++
test ! -e parse2.h++
test ! -e cxx2-parse2.h++
# Minimal checks about recovering from header removal.
rm -f p.h parse.hh parse3.hxx
$run_make p.h parse.hh
$debug_info
test -f p.h
test -f parse.hh
test ! -e parse3.hxx
$run_make
$debug_info
test -f parse3.hxx
cd $srcdir
done
:
|
