Resurrect rb_reg_prepare_re C API

Existing strscan releases rely on this C API. It means that the current
Ruby master doesn't work if your Gemfile.lock has strscan unless it's
locked to 3.0.7, which is not released yet.

To fix it, let's not remove the C API we've exposed to users.

1 files changed, 1 insertions, 1 deletions

diff --git a/re.c b/re.c
index 5ae896d2aa..abab264f7d 100644
--- a/re.c
+++ b/re.c
@@ -1575,7 +1575,7 @@ rb_reg_prepare_enc(VALUE re, VALUE str, int warn)
     return enc;
 }
 
-static regex_t *
+regex_t *
 rb_reg_prepare_re(VALUE re, VALUE str)
 {
     int r;