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ed7d5c2b5b
Commit a4ede8f85b ("package: make bison
a relocatable package") made Bison relocatable, but in fact it still
contains one absolute reference: the M4 variable, which points to the
M4 program. Let's fix that by using relocate(), see if an M4 binary is
available at the relocated location, and otherwise fallback to the
original M4 location.
See https://lists.gnu.org/r/bison-patches/2020-05/msg00078.html,
and https://lists.gnu.org/r/bison-patches/2020-05/msg00087.html.
* src/files.h, src/files.c (m4path): New.
* src/output.c: Use it.
89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/* File names and variables for bison,
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Copyright (C) 1984, 1989, 2000-2002, 2006-2007, 2009-2015, 2018-2020
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Free Software Foundation, Inc.
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This file is part of Bison, the GNU Compiler Compiler.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef FILES_H_
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# define FILES_H_
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# include "location.h"
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# include "uniqstr.h"
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/* File name specified with -o for the output file, or 0 if no -o. */
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extern char const *spec_outfile;
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/* File name for the parser (i.e., the one above, or its default.) */
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extern char *parser_file_name;
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/* Symbol prefix specified with -p, or 0 if no -p. */
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extern const char *spec_name_prefix;
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extern location spec_name_prefix_loc;
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/* File name prefix specified with -b, or 0 if no -b. */
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extern char const *spec_file_prefix;
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extern location spec_file_prefix_loc;
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/* --verbose. */
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extern char *spec_verbose_file;
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/* File name specified for the output graph. */
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extern char *spec_graph_file;
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/* File name specified for the xml output. */
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extern char *spec_xml_file;
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/* File name specified with --defines. */
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extern char *spec_header_file;
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/* Directory prefix of output file names. */
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extern char *dir_prefix;
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/* The file name as given on the command line.
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Not named "input_file" because Flex uses this name for an argument,
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and therefore GCC warns about a name clash. */
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extern uniqstr grammar_file;
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/* The computed base for output file names. */
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extern char *all_but_ext;
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/* Where our data files are installed. */
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char const *pkgdatadir (void);
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/* Where the m4 program is installed. */
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char const *m4path (void);
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void compute_output_file_names (void);
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void output_file_names_free (void);
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/** Record that we generate a file.
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*
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* \param file_name the name of file being generated.
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* \param source whether this is a source file (*c, *.java...)
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* as opposed to a report (*.output, *.dot...).
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*/
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void output_file_name_check (char **file_name, bool source);
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/** Remove all the generated source files. */
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void unlink_generated_sources (void);
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FILE *xfopen (const char *name, char const *mode);
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void xfclose (FILE *ptr);
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FILE *xfdopen (int fd, char const *mode);
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#endif /* !FILES_H_ */
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