Build: Added support for custom PKG_CONFIG_PATH in UCW::Configure::PkgConfig().

diff --git a/ucw/perl/UCW/Configure/Pkg.pm b/ucw/perl/UCW/Configure/Pkg.pm
index 5f3dc337604299d08ca345e1f2041908d59c77f9..a31d616e2e4286331385acc4049f0e5ee88877e2 100644 (file)
--- a/ucw/perl/UCW/Configure/Pkg.pm
+++ b/ucw/perl/UCW/Configure/Pkg.pm
@@ -1,5 +1,6 @@
 # UCW Library configuration system: pkg-config and friends
 # (c) 2008 Martin Mares <mj@ucw.cz>
+# (c) 2017 Pavel Charvat <pchar@ucw.cz>
 
 package UCW::Configure::Pkg;
 use UCW::Configure;
@@ -57,14 +58,21 @@ sub PkgConfig($@) {
                Log("NONE: pkg-config missing\n");
                return 0;
        }
-       my $ver = TryCmd("pkg-config --modversion $pkg 2>/dev/null");
+       my $pc = "pkg-config";
+       if (defined($opts{path})) {
+               $pc = "PKG_CONFIG_PATH=$opts{path} $pc";
+       }
+       if (defined($opts{args})) {
+               $pc = "$pc $opts{args}";
+       }
+       my $ver = TryCmd("$pc --modversion $pkg 2>/dev/null");
        if (!defined $ver) {
                Log("NONE\n");
                return 0;
        }
        if (defined($opts{minversion})) {
                my $min = $opts{minversion};
-               if (!defined TryCmd("pkg-config --atleast-version=$min $pkg")) {
+               if (!defined TryCmd("$pc --atleast-version=$min $pkg")) {
                        Log("NO: version $ver is too old (need >= $min)\n");
                        return 0;
                }
@@ -72,9 +80,9 @@ sub PkgConfig($@) {
        Log("YES: version $ver\n");
        Set("CONFIG_HAVE_$upper" => 1);
        Set("CONFIG_VER_$upper" => $ver);
-       my $cf = TryCmd("pkg-config --cflags $pkg");
+       my $cf = TryCmd("$pc --cflags $pkg");
        Set("${upper}_CFLAGS" => $cf) if defined $cf;
-       my $lf = TryCmd("pkg-config --libs $pkg");
+       my $lf = TryCmd("$pc --libs $pkg");
        Set("${upper}_LIBS" => $lf) if defined $lf;
        return 1;
 }