[PATCH] classes/license: copy licenses even if there are no checksummed files

[Ross Burton <ross.burton@intel.com>]

Previously do_populate_lic would bail writing the license files (such as the MIT
license text) to deploy/licenses/${PN}/ if there were no files listed in
LIC_FILES_CHKSUM.

However this means that recipes that generate their content (such as os-release)
or are otherwise "interesting" (such as perf) don't have their license files
copied over, resulting in warnings from do_rootfs.

Signed-off-by: Ross Burton <ross.burton@intel.com>
---
 meta/classes/license.bbclass | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/meta/classes/license.bbclass b/meta/classes/license.bbclass
index 660b85f..afcfbfc 100644
--- a/meta/classes/license.bbclass
+++ b/meta/classes/license.bbclass
@@ -390,7 +390,7 @@ def find_license_files(d):
     from collections import defaultdict, OrderedDict
 
     # All the license files for the package
-    lic_files = d.getVar('LIC_FILES_CHKSUM', True)
+    lic_files = d.getVar('LIC_FILES_CHKSUM', True) or ""
     pn = d.getVar('PN', True)
     # The license files are located in S/LIC_FILE_CHECKSUM.
     srcdir = d.getVar('S', True)
@@ -469,12 +469,6 @@ def find_license_files(d):
     if not generic_directory:
         bb.fatal("COMMON_LICENSE_DIR is unset. Please set this in your distro config")
 
-    if not lic_files:
-        # No recipe should have an invalid license file. This is checked else
-        # where, but let's be pedantic
-        bb.note(pn + ": Recipe file does not have license file information.")
-        return lic_files_paths
-
     for url in lic_files.split():
         try:
             (type, host, path, user, pswd, parm) = bb.fetch.decodeurl(url)
-- 
2.8.1