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#
# Copyright 2002-2007 The ChatSpike Development Team
# <brain@chatspike.net>
# <Craig@chatspike.net>
#
# Licensed under GPL, please see the COPYING file
# for more information
#
package make::utilities;
use Exporter 'import';
use POSIX;
use Getopt::Long;
@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.
# \033[1;32msrc/Makefile\033[0m
my %already_added = ();
sub promptstring($$$$$)
{
my ($prompt, $configitem, $default, $package, $commandlineswitch) = @_;
my $var;
if (!$main::interactive)
{
undef $opt_commandlineswitch;
GetOptions ("$commandlineswitch=s" => \$opt_commandlineswitch);
if (defined $opt_commandlineswitch)
{
print "\033[1;32m$opt_commandlineswitch\033[0m\n";
$var = $opt_commandlineswitch;
}
else
{
die "Could not detect $package! Please specify the $prompt via the command line option \033[1;32m--$commandlineswitch=\"/path/to/file\"\033[0m";
}
}
else
{
print "\nPlease enter the $prompt?\n";
print "[\033[1;32m$default\033[0m] -> ";
chomp($var = <STDIN>);
}
if ($var eq "")
{
$var = $default;
}
$main::config{$configitem} = $var;
}
sub make_rpath($;$)
{
my ($executable, $module) = @_;
chomp($data = `$executable`);
my $output = "";
while ($data =~ /-L(\S+)/)
{
$libpath = $1;
if (!exists $already_added{$libpath})
{
print "Adding extra library path to \033[1;32m$module\033[0m ... \033[1;32m$libpath\033[0m\n";
$already_added{$libpath} = 1;
}
$output .= "-Wl,--rpath -Wl,$libpath -L$libpath ";
$data =~ s/-L(\S+)//;
}
return $output;
}
sub extend_pkg_path()
{
if (!exists $ENV{PKG_CONFIG_PATH})
{
$ENV{PKG_CONFIG_PATH} = "/usr/lib/pkgconfig:/usr/local/lib/pkgconfig:/usr/local/libdata/pkgconfig:/usr/X11R6/libdata/pkgconfig";
}
else
{
$ENV{PKG_CONFIG_PATH} .= ":/usr/local/lib/pkgconfig:/usr/local/libdata/pkgconfig:/usr/X11R6/libdata/pkgconfig";
}
}
sub pkgconfig_get_include_dirs($$$;$)
{
my ($packagename, $headername, $defaults, $module) = @_;
my $key = "default_includedir_$packagename";
if (exists $main::config{$key})
{
print "Locating include directory for package \033[1;32m$packagename\033[0m for module \033[1;32m$module\033[0m... ";
$ret = $main::config{$key};
print "\033[1;32m$ret\033[0m (cached)\n";
return $ret;
}
extend_pkg_path();
print "Locating include directory for package \033[1;32m$packagename\033[0m for module \033[1;32m$module\033[0m... ";
$v = `pkg-config --modversion $packagename 2>/dev/null`;
$ret = `pkg-config --cflags $packagename 2>/dev/null`;
if ((!defined $v) || ($v eq ""))
{
$foo = `locate "$headername" | head -n 1`;
$foo =~ /(.+)\Q$headername\E/;
$find = $1;
chomp($find);
if ((defined $find) && ($find ne "") && ($find ne $packagename))
{
print "(\033[1;32mFound via search\033[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 "\033[1;32m$ret\033[0m (version $v)\n";
}
$ret =~ s/^\s+//g;
return $ret;
}
sub vcheck($$)
{
my ($version1, $version2) = @_;
$version1 =~ s/\-r(\d+)/\.\1/g; # minor revs/patchlevels
$version2 =~ s/\-r(\d+)/\.\1/g;
$version1 =~ s/p(\d+)/\.\1/g;
$version2 =~ s/p(\d+)/\.\1/g;
$version1 =~ s/\-//g;
$version2 =~ s/\-//g;
$version1 =~ s/a-z//g;
$version2 =~ s/a-z//g;
my @v1 = split('\.', $version1);
my @v2 = split('\.', $version2);
for ($curr = 0; $curr < scalar(@v1); $curr++)
{
if ($v1[$curr] < $v2[$curr])
{
return 0;
}
}
return 1;
}
sub pkgconfig_check_version($$;$)
{
my ($packagename, $version, $module) = @_;
extend_pkg_path();
print "Checking version of package \033[1;32m$packagename\033[0m is >= \033[1;32m$version\033[0m... ";
$v = `pkg-config --modversion $packagename 2>/dev/null`;
if (defined $v)
{
chomp($v);
}
if ((defined $v) && ($v ne ""))
{
if (vcheck($v,$version) == 1)
{
print "\033[1;32mYes (version $v)\033[0m\n";
return 1;
}
else
{
print "\033[1;32mNo (version $v)\033[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 "\033[1;32mNo (not found)\033[0m\n";
return 1;
}
sub pkgconfig_get_lib_dirs($$$;$)
{
my ($packagename, $libname, $defaults, $module) = @_;
my $key = "default_libdir_$packagename";
if (exists $main::config{$key})
{
print "Locating library directory for package \033[1;32m$packagename\033[0m for module \033[1;32m$module\033[0m... ";
$ret = $main::config{$key};
print "\033[1;32m$ret\033[0m (cached)\n";
return $ret;
}
extend_pkg_path();
print "Locating library directory for package \033[1;32m$packagename\033[0m for module \033[1;32m$module\033[0m... ";
$v = `pkg-config --modversion $packagename 2>/dev/null`;
$ret = `pkg-config --libs $packagename 2>/dev/null`;
if ((!defined $v) || ($v eq ""))
{
$foo = `locate "$libname" | head -n 1`;
$foo =~ /(.+)\Q$libname\E/;
$find = $1;
chomp($find);
if ((defined $find) && ($find ne "") && ($find ne $packagename))
{
print "(\033[1;32mFound via search\033[0m) ";
$foo = "-L$1";
}
else
{
$foo = " ";
undef $v;
}
$ret = "$foo";
}
if (($defaults ne "") && (($ret eq "") || (!defined $ret)))
{
$ret = "$foo " . $defaults;
}
chomp($ret);
if ((($ret eq " ") || (!defined $ret)) && ((!defined $v) || ($v eq "")))
{
my $key = "default_libdir_$packagename";
if (exists $main::config{$key})
{
$ret = $main::config{$key};
}
else
{
$libname =~ s/^\///;
promptstring("path to the directory containing $libname", $key, "/usr/lib",$packagename,"$packagename-libs");
$main::config{$key} = "-L$main::config{$key}" . " $defaults";
$main::config{$key} =~ s/^\s+//g;
$ret = $main::config{$key};
return $ret;
}
}
else
{
chomp($v);
print "\033[1;32m$ret\033[0m (version $v)\n";
my $key = "default_libdir_$packagename";
$main::config{$key} = $ret;
$main::config{$key} =~ s/^\s+//g;
$ret =~ s/^\s+//g;
}
$ret =~ s/^\s+//g;
return $ret;
}
# Translate a $CompileFlags etc line and parse out function calls
# to functions within these modules at configure time.
sub translate_functions($$)
{
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 \033[1;32m$module\033[0m ... \033[1;32m$1\033[0m\n";
my $replace = `$1`;
chomp($replace);
$line =~ s/exec\("(.+?)"\)/$replace/;
}
while ($line =~ /eval\("(.+?)"\)/)
{
print "Evaluating perl code for module \033[1;32m$module\033[0m ... ";
my $tmpfile;
do
{
$tmpfile = tmpnam();
} until sysopen(TF, $tmpfile, O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW, 0700);
print "(Created and executed \033[1;32m$tmpfile\033[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 \033[1;32m$2\033[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\("(.+?)"\)/$replace/;
}
};
if ($@)
{
$err = $@;
$err =~ s/at .+? line \d+.*//g;
print "\n\nConfiguration failed. The following error occured:\n\n$err\n";
exit;
}
else
{
return $line;
}
}
1;
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