ruby: fix TypeError exception triggered by python3

The error appears as follows:

ERROR: Failure expanding variable RUBY_GEM_VERSION, expression was
${@get_rubygemsversion("build/tmp/sysroots/x86_64-linux/usr/bin")}
which triggered exception TypeError: can't use a string pattern on
a bytes-like object

Adding an explicit utf-8 decode makes it work again.

Similar fixes appear in git://git.pokylinux.org/poky 3e309e0aad

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/classes/ruby.bbclass b/classes/ruby.bbclass
index 92226f6..bc82ca9 100644
--- a/classes/ruby.bbclass
+++ b/classes/ruby.bbclass
@@ -66,7 +66,7 @@ def get_rubygemsversion(p):
     version = subprocess.Popen([cmd, "env", "gemdir"], stdout=subprocess.PIPE).communicate()[0]
     
     r = re.compile(".*([0-9]+\.[0-9]+\.[0-9]+)$")
-    m = r.match(version)
+    m = r.match(version.decode("utf-8"))
     if m:
         found_version = m.group(1)