summaryrefslogtreecommitdiff
path: root/make/utilities.pm
blob: 9b52e4e944ae1b81d6249ff9f961f8ddc95ce339 (plain)
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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
#       +------------------------------------+
#       | Inspire Internet Relay Chat Daemon |
#       +------------------------------------+
#
#  InspIRCd: (C) 2002-2007 InspIRCd Development Team
# See: http://www.inspircd.org/wiki/index.php/Credits
#
# This program is free but copyrighted software; see
#      the file COPYING for details.
#
# ---------------------------------------------------

package make::utilities;

require 5.8.0;

use strict;
use warnings FATAL => qw(all);

use Exporter 'import';
use POSIX;
use Getopt::Long;
use Fcntl;
our @EXPORT = qw(make_rpath pkgconfig_get_include_dirs pkgconfig_get_lib_dirs pkgconfig_check_version translate_functions promptstring vcheck);

# Parse the output of a *_config program,
# such as pcre_config, take out the -L
# directive and return an rpath for it.

# \e[1;32msrc/Makefile\e[0m

my %already_added = ();

sub promptstring($$$$$)
{
	my ($prompt, $configitem, $default, $package, $commandlineswitch) = @_;
	my $var;
	if (!$main::interactive)
	{
		my $opt_commandlineswitch;
		GetOptions ("$commandlineswitch=s" => \$opt_commandlineswitch);
		if (defined $opt_commandlineswitch)
		{
			print "\e[1;32m$opt_commandlineswitch\e[0m\n";
			$var = $opt_commandlineswitch;
		}
		else
		{
			die "Could not detect $package! Please specify the $prompt via the command line option \e[1;32m--$commandlineswitch=\"/path/to/file\"\e[0m";
		}
	}
	else
	{
		print "\nPlease enter the $prompt?\n";
		print "[\e[1;32m$default\e[0m] -> ";
		chomp($var = <STDIN>);
	}
	if ($var eq "")
	{
		$var = $default;
	}
	$main::config{$configitem} = $var;
}

sub make_rpath($;$)
{
	my ($executable, $module) = @_;
	chomp(my $data = `$executable`);
	my $output = "";
	while ($data =~ /-L(\S+)/)
	{
		my $libpath = $1;
		if (!exists $already_added{$libpath})
		{
			print "Adding extra library path to \e[1;32m$module\e[0m ... \e[1;32m$libpath\e[0m\n";
			$already_added{$libpath} = 1;
		}
		$output .= "-Wl,--rpath -Wl,$libpath -L$libpath " unless defined $main::opt_disablerpath;
		$data =~ s/-L(\S+)//;
	}
	return $output;
}

sub extend_pkg_path()
{
	if (!exists $ENV{PKG_CONFIG_PATH})
	{
		$ENV{PKG_CONFIG_PATH} = "/usr/lib/pkgconfig:/usr/local/lib/pkgconfig:/usr/local/libdata/pkgconfig:/usr/X11R6/libdata/pkgconfig";
	}
	else
	{
		$ENV{PKG_CONFIG_PATH} .= ":/usr/local/lib/pkgconfig:/usr/local/libdata/pkgconfig:/usr/X11R6/libdata/pkgconfig";
	}
}

sub pkgconfig_get_include_dirs($$$;$)
{
	my ($packagename, $headername, $defaults, $module) = @_;

	my $key = "default_includedir_$packagename";
	if (exists $main::config{$key})
	{
		print "Locating include directory for package \e[1;32m$packagename\e[0m for module \e[1;32m$module\e[0m... ";
		my $ret = $main::config{$key};
		print "\e[1;32m$ret\e[0m (cached)\n";
		return $ret;
	}

	extend_pkg_path();

	print "Locating include directory for package \e[1;32m$packagename\e[0m for module \e[1;32m$module\e[0m... ";

	my $v = `pkg-config --modversion $packagename 2>/dev/null`;
	my $ret = `pkg-config --cflags $packagename 2>/dev/null`;
	my $foo = "";

	if ((!defined $v) || ($v eq ""))
	{
		$foo = `locate "$headername" | head -n 1`;
		$foo =~ /(.+)\Q$headername\E/;
		my $find = $1;
		chomp($find);
		if ((defined $find) && ($find ne "") && ($find ne $packagename))
		{
			print "(\e[1;32mFound via search\e[0m) ";
			$foo = "-I$1";
		}
		else
		{
			$foo = " ";
			undef $v;
		}
		$ret = "$foo";
	}
	if (($defaults ne "") && (($ret eq "") || (!defined $ret)))
	{
		$ret = "$foo " . $defaults;
	}
	chomp($ret);
	if ((($ret eq " ") || (!defined $ret)) && ((!defined $v) || ($v eq "")))
	{
		my $key = "default_includedir_$packagename";
		if (exists $main::config{$key})
		{
			$ret = $main::config{$key};
		}
		else
		{
			$headername =~ s/^\///;
			promptstring("path to the directory containing $headername", $key, "/usr/include",$packagename,"$packagename-includes");
			$packagename =~ tr/a-z/A-Z/;
			$main::config{$key} = "-I$main::config{$key}" . " $defaults -DVERSION_$packagename=\"$v\"";
			$main::config{$key} =~ s/^\s+//g;
			$ret = $main::config{$key};
			return $ret;
		}
	}
	else
	{
		chomp($v);
		my $key = "default_includedir_$packagename";
		$packagename =~ tr/a-z/A-Z/;
		$main::config{$key} = "$ret -DVERSION_$packagename=\"$v\"";
		$main::config{$key} =~ s/^\s+//g;
		$ret = $main::config{$key};
		print "\e[1;32m$ret\e[0m (version $v)\n";
	}
	$ret =~ s/^\s+//g;
	return $ret;
}

sub vcheck($$)
{
	my ($version1, $version2) = @_;
	$version1 =~ s/\-r(\d+)/\.$1/g; # minor revs/patchlevels
	$version2 =~ s/\-r(\d+)/\.$1/g;
	$version1 =~ s/p(\d+)/\.$1/g;
	$version2 =~ s/p(\d+)/\.$1/g;
	$version1 =~ s/\-//g;
	$version2 =~ s/\-//g;
	$version1 =~ s/[a-z]//g;
	$version2 =~ s/[a-z]//g;
	my @v1 = split('\.', $version1);
	my @v2 = split('\.', $version2);
	for (my $curr = 0; $curr < scalar(@v2); $curr++)
	{
		if ($v1[$curr] < $v2[$curr])
		{
			return 0;
		}
	}
	return 1;
}

sub pkgconfig_check_version($$;$)
{
	my ($packagename, $version, $module) = @_;

	extend_pkg_path();

	print "Checking version of package \e[1;32m$packagename\e[0m is >= \e[1;32m$version\e[0m... ";

	my $v = `pkg-config --modversion $packagename 2>/dev/null`;
	if (defined $v)
	{
		chomp($v);
	}
	if ((defined $v) && ($v ne ""))
	{
		if (vcheck($v,$version) == 1)
		{
			print "\e[1;32mYes (version $v)\e[0m\n";
			return 1;
		}
		else
		{
			print "\e[1;32mNo (version $v)\e[0m\n";
			return 0;
		}
	}
	# If we didnt find it, we  cant definitively say its too old.
	# Return ok, and let pkgconflibs() or pkgconfincludes() pick up
	# the missing library later on.
	print "\e[1;32mNo (not found)\e[0m\n";
	return 1;
}

sub pkgconfig_get_lib_dirs($$$;$)
{
	my ($packagename, $libname, $defaults, $module) = @_;

	my $key = "default_libdir_$packagename";
	if (exists $main::config{$key})
	{
		print "Locating library directory for package \e[1;32m$packagename\e[0m for module \e[1;32m$module\e[0m... ";
		my $ret = $main::config{$key};
		print "\e[1;32m$ret\e[0m (cached)\n";
		return $ret;
	}

	extend_pkg_path();

	print "Locating library directory for package \e[1;32m$packagename\e[0m for module \e[1;32m$module\e[0m... ";

	my $v = `pkg-config --modversion $packagename 2>/dev/null`;
	my $ret = `pkg-config --libs $packagename 2>/dev/null`;

	my $foo = "";
	if ((!defined $v) || ($v eq ""))
	{
		$foo = `locate "$libname" | head -n 1`;
		$foo =~ /(.+)\Q$libname\E/;
		my $find = $1;
		chomp($find);
		if ((defined $find) && ($find ne "") && ($find ne $packagename))
		{
			print "(\e[1;32mFound via search\e[0m) ";
			$foo = "-L$1";
		}
		else
		{
			$foo = " ";
			undef $v;
		}
		$ret = "$foo";
	}

	if (($defaults ne "") && (($ret eq "") || (!defined $ret)))
	{
		$ret = "$foo " . $defaults;
	}
	chomp($ret);
	if ((($ret eq " ") || (!defined $ret)) && ((!defined $v) || ($v eq "")))
	{
		my $key = "default_libdir_$packagename";
		if (exists $main::config{$key})
		{
			$ret = $main::config{$key};
		}
		else
		{
			$libname =~ s/^\///;
			promptstring("path to the directory containing $libname", $key, "/usr/lib",$packagename,"$packagename-libs");
			$main::config{$key} = "-L$main::config{$key}" . " $defaults";
			$main::config{$key} =~ s/^\s+//g;
			$ret = $main::config{$key};
			return $ret;
		}
	}
	else
	{
		chomp($v);
		print "\e[1;32m$ret\e[0m (version $v)\n";
		my $key = "default_libdir_$packagename";
		$main::config{$key} = $ret;
		$main::config{$key} =~ s/^\s+//g;
		$ret =~ s/^\s+//g;
	}
	$ret =~ s/^\s+//g;
	return $ret;
}

# Translate a $CompileFlags etc line and parse out function calls
# to functions within these modules at configure time.
sub translate_functions($$)
{
	my ($line,$module) = @_;

	eval
	{
		$module =~ /modules*\/(.+?)$/;
		$module = $1;

		# This is only a cursory check, just designed to catch casual accidental use of backticks.
		# There are pleanty of ways around it, but its not supposed to be for security, just checking
		# that people are using the new configuration api as theyre supposed to and not just using
		# backticks instead of eval(), being as eval has accountability. People wanting to get around
		# the accountability will do so anyway.
		if (($line =~ /`/) && ($line !~ /eval\(.+?`.+?\)/))
		{
			die "Developers should no longer use backticks in configuration macros. Please use exec() and eval() macros instead. Offending line: $line (In module: $module)";
		}
		while ($line =~ /exec\("(.+?)"\)/)
		{
			print "Executing program for module \e[1;32m$module\e[0m ... \e[1;32m$1\e[0m\n";
			my $replace = `$1`;
			die $replace if ($replace =~ /Configuration failed/);
			chomp($replace);
			$line =~ s/exec\("(.+?)"\)/$replace/;
		}
		while ($line =~ /execruntime\("(.+?)"\)/)
		{
			$line =~ s/execruntime\("(.+?)"\)/`$1`/;
		}
		while ($line =~ /eval\("(.+?)"\)/)
		{
			print "Evaluating perl code for module \e[1;32m$module\e[0m ... ";
			my $tmpfile;
			do
			{
				$tmpfile = tmpnam();
			} until sysopen(TF, $tmpfile, O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW, 0700);
			print "(Created and executed \e[1;32m$tmpfile\e[0m)\n";
			print TF $1;
			close TF;
			my $replace = `perl $tmpfile`;
			chomp($replace);
			$line =~ s/eval\("(.+?)"\)/$replace/;
		}
		while ($line =~ /pkgconflibs\("(.+?)","(.+?)","(.+?)"\)/)
		{
			my $replace = pkgconfig_get_lib_dirs($1, $2, $3, $module);
			$line =~ s/pkgconflibs\("(.+?)","(.+?)","(.+?)"\)/$replace/;
		}
		while ($line =~ /pkgconfversion\("(.+?)","(.+?)"\)/)
		{
			if (pkgconfig_check_version($1, $2, $module) != 1)
			{
				die "Version of package $1 is too old. Please upgrade it to version \e[1;32m$2\e[0m or greater and try again.";
			}
			# This doesnt actually get replaced with anything
			$line =~ s/pkgconfversion\("(.+?)","(.+?)"\)//;
		}
		while ($line =~ /pkgconflibs\("(.+?)","(.+?)",""\)/)
		{
			my $replace = pkgconfig_get_lib_dirs($1, $2, "", $module);
			$line =~ s/pkgconflibs\("(.+?)","(.+?)",""\)/$replace/;
		}
		while ($line =~ /pkgconfincludes\("(.+?)","(.+?)",""\)/)
		{
			my $replace = pkgconfig_get_include_dirs($1, $2, "", $module);
			$line =~ s/pkgconfincludes\("(.+?)","(.+?)",""\)/$replace/;
		}
		while ($line =~ /pkgconfincludes\("(.+?)","(.+?)","(.+?)"\)/)
		{
			my $replace = pkgconfig_get_include_dirs($1, $2, $3, $module);
			$line =~ s/pkgconfincludes\("(.+?)","(.+?)","(.+?)"\)/$replace/;
		}
		while ($line =~ /rpath\("(.+?)"\)/)
		{
			my $replace = make_rpath($1,$module);
			$replace = "" if ($^O =~ /darwin/i);
			$line =~ s/rpath\("(.+?)"\)/$replace/;
		}
	};
	if ($@)
	{
		my $err = $@;
		$err =~ s/at .+? line \d+.*//g;
		print "\n\nConfiguration failed. The following error occured:\n\n$err\n";
		exit;
	}
	else
	{
		return $line;
	}
}

1;