Tidy up the buildsystem a lot by encapsulating repeated detection routines for lib dirs and header dirs in make/utilities.pm.

See the pl files in src/modules/extra for how to use the functions.


git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@6305 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 86 insertions, 0 deletions

diff --git a/make/utilities.pm b/make/utilities.pm
new file mode 100644
index 000000000..a7e0eb794
--- /dev/null
+++ b/make/utilities.pm
@@ -0,0 +1,86 @@
+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;
+