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c538592959
There are a lot of Perl scripts in the tree, mostly code generation
and TAP tests. Occasionally, these scripts produce warnings. These
are probably always mistakes on the developer side (true positives).
Typical examples are warnings from genbki.pl or related when you make
a mess in the catalog files during development, or warnings from tests
when they massage a config file that looks different on different
hosts, or mistakes during merges (e.g., duplicate subroutine
definitions), or just mistakes that weren't noticed because there is a
lot of output in a verbose build.
This changes all warnings into fatal errors, by replacing
use warnings;
by
use warnings FATAL => 'all';
in all Perl files.
Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
67 lines
1.8 KiB
Perl
67 lines
1.8 KiB
Perl
#!/usr/bin/perl
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#----------------------------------------------------------------------
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#
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# fix-old-flex-code.pl
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#
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# flex versions before 2.5.36, with certain option combinations, produce
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# code that causes an "unused variable" warning. That's annoying, so
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# let's suppress it by inserting a dummy reference to the variable.
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# (That's exactly what 2.5.36 and later do ...)
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#
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# Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
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# Portions Copyright (c) 1994, Regents of the University of California
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#
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# src/tools/fix-old-flex-code.pl
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#
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#----------------------------------------------------------------------
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use strict;
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use warnings FATAL => 'all';
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# Get command line argument.
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usage() if $#ARGV != 0;
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my $filename = shift;
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# Suck in the whole file.
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local $/ = undef;
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my $cfile;
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open($cfile, '<', $filename) || die "opening $filename for reading: $!";
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my $ccode = <$cfile>;
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close($cfile);
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# No need to do anything if it's not flex 2.5.x for x < 36.
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exit 0 if $ccode !~ m/^#define YY_FLEX_MAJOR_VERSION 2$/m;
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exit 0 if $ccode !~ m/^#define YY_FLEX_MINOR_VERSION 5$/m;
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exit 0 if $ccode !~ m/^#define YY_FLEX_SUBMINOR_VERSION (\d+)$/m;
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exit 0 if $1 >= 36;
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# Apply the desired patch.
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$ccode =~
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s|(struct yyguts_t \* yyg = \(struct yyguts_t\*\)yyscanner; /\* This var may be unused depending upon options. \*/
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.*?)
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return yy_is_jam \? 0 : yy_current_state;
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|$1
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(void) yyg;
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return yy_is_jam ? 0 : yy_current_state;
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|s;
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# Write the modified file back out.
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open($cfile, '>', $filename) || die "opening $filename for writing: $!";
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print $cfile $ccode;
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close($cfile);
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exit 0;
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sub usage
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{
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die <<EOM;
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Usage: fix-old-flex-code.pl c-file-name
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fix-old-flex-code.pl modifies a flex output file to suppress
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an unused-variable warning that occurs with older flex versions.
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Report bugs to <pgsql-bugs\@lists.postgresql.org>.
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EOM
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}
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