[meta-java][PATCH] openjdk-build-helper: Use python raw string for regex pattern

[Douglas Royds <douglas.royds@taitradio.com>]

See https://docs.python.org/3/library/re.html

Invalid escape sequences in Python’s usage of the backslash in string literals
now generate a DeprecationWarning, and in the future this will become a
SyntaxError. The solution is to use Python’s raw string notation for regular
expression patterns; backslashes are not handled in any special way in a string
literal prefixed with 'r'.

Signed-off-by: Douglas Royds <douglas.royds@taitradio.com>
---
 classes/openjdk-build-helper.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/classes/openjdk-build-helper.bbclass b/classes/openjdk-build-helper.bbclass
index a4b77a0..07cbcd3 100644
--- a/classes/openjdk-build-helper.bbclass
+++ b/classes/openjdk-build-helper.bbclass
@@ -45,7 +45,7 @@ def openjdk_build_helper_get_target_cflags(d):
     # doesn't work anyway.
     version = d.getVar('GCCVERSION')[0]
     # skip non digit characters at the beginning, e.g. from "linaro-6.2%"
-    match = re.search("\d", version)
+    match = re.search(r"\d", version)
     if match:
         version = version[match.start():]
     return openjdk_build_helper_get_cflags_by_cc_version(d, version)
-- 
2.30.2