Allow an underscore-prefixed alphanum suffix to the OTP version

This helps supporting custom forks of OTP e.g. basho/otp

1 files changed, 1 insertions, 1 deletions

diff --git a/kerl b/kerl
index 4fc05f5..98fb6f8 100755
--- a/kerl
+++ b/kerl
@@ -375,7 +375,7 @@ do_git_build()
 
 get_otp_version()
 {
-    echo $1 | sed $SED_OPT -e 's/R?([0-9]{1,2})[.AB]?[-.0-9rc]*/\1/'
+    echo $1 | sed $SED_OPT -e 's/R?([0-9]{1,2})[.AB]?[-.0-9rc]*(_[a-zA-Z0-9]*)?/\1/'
 }
 
 get_perl_version()