1 files changed, 76 insertions, 0 deletions
diff --git a/server/pg_config.pl b/server/pg_config.pl
new file mode 100755
index 0000000..2c90236
--- /dev/null
+++ b/server/pg_config.pl
@@ -0,0 +1,76 @@
+#!/usr/bin/perl
+
+# Perl reimplementation of PostgreSQL's pg_config binary.
+# We provide this as /usr/bin/pg_config to support cross-compilation using
+# libpq-dev. Also, this makes the two installed pg_config copies not conflict
+# via their debugging symbols.
+#
+# This code is released under the terms of the PostgreSQL License.
+# Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
+# Author: Christoph Berg
+
+use strict;
+use warnings;
+
+# no arguments, print all items
+if (@ARGV == 0) {
+	while (<DATA>) {
+		last if /^$/; # begin of help section
+		print;
+	}
+	exit 0;
+}
+
+# --help or -?
+if (grep {$_ =~ /^(--help|-\?)$/} @ARGV) {
+	while (<DATA>) {
+		last if /^$/; # begin of help section
+	}
+	print; # include empty line in output
+	while (<DATA>) {
+		next if /^Report bugs/; # Skip bug address in the perl version
+		print;
+	}
+	exit 0;
+}
+
+# specific value(s) requested
+my %options;
+my $help;
+while (<DATA>) {
+	last if /^$/; # begin of help section
+	/^(\S+) = (.*)/ or die "malformatted data item";
+	$options{'--' . lc $1} = $2;
+}
+
+foreach my $arg (@ARGV) {
+	unless ($options{$arg}) {
+		print "pg_config: invalid argument: $arg\n";
+		print "Try \"pg_config --help\" for more information.\n";
+		exit 1;
+	}
+	print "$options{$arg}\n";
+}
+
+exit 0;
+
+# The DATA section consists of the `pg_config` output (one KEY = value item per
+# line), and the `pg_config --help` text. The first --help line is empty, which
+# we use to detect the beginning of the help section.
+
+__DATA__
+INCLUDEDIR = /usr/include/postgresql
+
+pg_config provides information about the installed version of PostgreSQL.
+
+Usage:
+  pg_config [OPTION]...
+
+Options:
+  --includedir          show location of C header files of the client
+                        interfaces
+  -?, --help            show this help, then exit
+
+With no arguments, all known items are shown.
+
+Report bugs to <pgsql-bugs@postgresql.org>.