* configure.in: check function attirbute const and pure,

  and define CONSTFUNC and PUREFUNC if available.
  Note that I don't add those options as default because
  it still shows many false-positive (it seems not to consider
  longjmp).

* vm_eval.c (stack_check): get rb_thread_t* as an argument
  to avoid duplicate call of GET_THREAD().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/st.c b/st.c
index 52a672d408..07b57d906e 100644
--- a/st.c
+++ b/st.c
@@ -1683,6 +1683,7 @@ st_locale_insensitive_strncasecmp(const char *s1, const char *s2, size_t n)
     return 0;
 }
 
+PUREFUNC(static st_index_t strcasehash(st_data_t));
 static st_index_t
 strcasehash(st_data_t arg)
 {