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package make::utilities;
use Exporter 'import';
@EXPORT = qw(make_rpath pkgconfig_get_include_dirs pkgconfig_get_lib_dirs);
# Parse the output of a *_config program,
# such as pcre_config, take out the -L
# directive and return an rpath for it.
sub make_rpath($)
{
my ($executable) = @_;
$data = `$executable`;
$data =~ /-L(\S+)\s/;
$libpath = $1;
return "-Wl,--rpath -Wl,$libpath";
}
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($$$)
{
my ($packagename, $headername, $defaults) = @_;
extend_pkg_path();
$ret = `pkg-config --cflags $packagename 2>/dev/null`;
if ((!defined $ret) || ($ret eq ""))
{
$foo = `locate "$headername" | head -n 1`;
$foo =~ /(.+)\Q$headername\E/;
if (defined $1)
{
$foo = "-I$1";
}
else
{
$foo = "";
}
$ret = "$foo";
}
if (($defaults ne "") && (($ret eq "") || (!defined $ret)))
{
$ret = "$foo " . $defaults;
}
return $ret;
}
sub pkgconfig_get_lib_dirs($$$)
{
my ($packagename, $libname, $defaults) = @_;
extend_pkg_path();
$ret = `pkg-config --libs $packagename 2>/dev/null`;
if ((!defined $ret) || ($ret eq ""))
{
$foo = `locate "$libname" | head -n 1`;
$foo =~ /(.+)\Q$libname\E/;
if (defined $1)
{
$foo = "-L$1";
}
else
{
$foo = "";
}
$ret = "$foo";
}
if (($defaults ne "") && (($ret eq "") || (!defined $ret)))
{
$ret = "$foo " . $defaults;
}
return $ret;
}
1;
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