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129 lines
3.1 KiB
129 lines
3.1 KiB
2 months ago
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# UCW Library configuration system: pkg-config and friends
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# (c) 2008 Martin Mares <mj@ucw.cz>
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# (c) 2017 Pavel Charvat <pchar@ucw.cz>
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package UCW::Configure::Pkg;
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use UCW::Configure;
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use strict;
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use warnings;
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require Exporter;
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our @ISA = qw(Exporter);
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our @EXPORT = qw(&TryCmd &PkgConfig &TrivConfig);
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sub TryCmd($) {
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my ($cmd) = @_;
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my $res = `$cmd`;
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defined $res or return;
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chomp $res;
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return $res unless $?;
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return;
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}
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sub maybe_manually($) {
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my ($n) = @_;
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if (IsGiven($n)) {
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if (Get("$n")) { Log "YES (set manually)\n"; }
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else { Log "NO (set manually)\n"; }
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return 1;
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}
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return 0;
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}
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sub PkgConfigTool() {
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Log "Checking for pkg-config ... ";
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if (!maybe_manually("CONFIG_HAVE_PKGCONFIG")) {
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my $ver = TryCmd("pkg-config --version 2>/dev/null");
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if (!defined $ver) {
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Log("NONE\n");
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Set("CONFIG_HAVE_PKGCONFIG", 0);
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} else {
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Log("YES: version $ver\n");
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Set("CONFIG_HAVE_PKGCONFIG", 1);
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Set("CONFIG_VER_PKGCONFIG", $ver);
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}
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}
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return Get("CONFIG_HAVE_PKGCONFIG");
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}
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sub PkgConfig($@) {
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my $pkg = shift @_;
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my %opts = @_;
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my $upper = $pkg; $upper =~ tr/a-z/A-Z/; $upper =~ s/[^0-9A-Z]+/_/g;
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PkgConfigTool() unless IsSet("CONFIG_HAVE_PKGCONFIG");
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Log "Checking for package $pkg ... ";
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maybe_manually("CONFIG_HAVE_$upper") and return Get("CONFIG_HAVE_$upper");
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if (!Get("CONFIG_HAVE_PKGCONFIG")) {
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Log("NONE: pkg-config missing\n");
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return 0;
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}
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my $pc = "pkg-config";
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if (defined($opts{path})) {
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$pc = "PKG_CONFIG_PATH=$opts{path} $pc";
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}
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if (defined($opts{args})) {
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$pc = "$pc $opts{args}";
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}
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my $ver = TryCmd("$pc --modversion $pkg 2>/dev/null");
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if (!defined $ver) {
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Log("NONE\n");
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return 0;
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}
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if (defined($opts{minversion})) {
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my $min = $opts{minversion};
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if (!defined TryCmd("$pc --atleast-version=$min $pkg")) {
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Log("NO: version $ver is too old (need >= $min)\n");
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return 0;
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}
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}
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Log("YES: version $ver\n");
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Set("CONFIG_HAVE_$upper" => 1);
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Set("CONFIG_VER_$upper" => $ver);
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my $cf = TryCmd("$pc --cflags $pkg");
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Set("${upper}_CFLAGS" => $cf) if defined $cf;
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my $lf = TryCmd("$pc --libs $pkg");
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Set("${upper}_LIBS" => $lf) if defined $lf;
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return 1;
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}
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sub ver_norm($) {
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my ($v) = @_;
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return join(".", map { sprintf("%05s", $_) } split(/\./, $v));
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}
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sub TrivConfig($@) {
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my $pkg = shift @_;
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my %opts = @_;
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my $upper = $pkg; $upper =~ tr/a-z/A-Z/; $upper =~ s/[^0-9A-Z]+/_/g;
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Log "Checking for package $pkg ... ";
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maybe_manually("CONFIG_HAVE_$upper") and return Get("CONFIG_HAVE_$upper");
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my $pc = $opts{script};
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my $ver = TryCmd("$pc --version 2>/dev/null");
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if (!defined $ver) {
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Log("NONE\n");
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return 0;
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}
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if (defined($opts{minversion})) {
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my $min = $opts{minversion};
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if (ver_norm($ver) lt ver_norm($min)) {
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Log("NO: version $ver is too old (need >= $min)\n");
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return 0;
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}
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}
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Log("YES: version $ver\n");
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Set("CONFIG_HAVE_$upper" => 1);
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Set("CONFIG_VER_$upper" => $ver);
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my $want = $opts{want};
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defined $want or $want = ["cflags", "libs"];
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for my $w (@$want) {
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my $uw = $w; $uw =~ tr/a-z-/A-Z_/;
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my $cf = TryCmd("$pc --$w");
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Set("${upper}_${uw}" => $cf) if defined $cf;
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}
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return 1;
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}
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# We succeeded
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1;
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