cpan classes: sync Perl with OE

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@1815 311d38ba-8fff-0310-9ca6-ca027cbcb966

meta/classes/cpan-base.bbclass

@@ -0,0 +1,55 @@
+#
+# cpan-base providers various perl related information needed for building
+# cpan modules
+#
+FILES_${PN} += "${libdir}/perl5 ${datadir}/perl5"
+
+DEPENDS  += "perl perl-native"
+RDEPENDS += "perl"
+
+# Determine the staged version of perl from the perl configuration file
+def get_perl_version(d):
+	import os, bb, re
+    	cfg = bb.data.expand('${STAGING_DIR}/${HOST_SYS}/perl/config.sh', d)
+	try:
+		f = open(cfg, 'r')
+	except IOError:
+		return None
+	l = f.readlines();
+	f.close();
+	r = re.compile("version='(\d\.\d\.\d)'")
+	for s in l:
+		m = r.match(s)
+		if m:
+			return m.group(1)
+	return None
+
+# Only 5.8.7 and 5.8.4 existed at the time we moved to the new layout
+def is_new_perl(d):
+    	ver = get_perl_version(d)
+	if ver == "5.8.4" or ver == "5.8.7":
+		return "no"
+	return "yes"
+
+# Determine where the library directories are
+def perl_get_libdirs(d):
+	import bb
+	libdir = bb.data.getVar('libdir', d, 1)
+	if is_new_perl(d) == "yes":
+		libdirs = libdir + '/perl5'
+	else:
+		libdirs = libdir + '/*/*/perl5'
+	return libdirs
+
+def is_target(d):
+    import bb
+    if not bb.data.inherits_class('native', d):
+        return "yes"
+    return "no"
+
+IS_NEW_PERL = "${@is_new_perl(d)}"
+PERLLIBDIRS = "${@perl_get_libdirs(d)}"
+
+FILES_${PN}-dbg += "${PERLLIBDIRS}/auto/*/.debug \
+                    ${PERLLIBDIRS}/auto/*/*/.debug \
+                    ${PERLLIBDIRS}/auto/*/*/*/.debug"