configure.in, missing.h: jemalloc mangling

* configure.in (with-jemalloc): also check for header, for ABIs
  which JEMALLOC_MANGLE is needed, i.e., Mach-O and PE-COFF
  platforms.  [ruby-core:62939] [Feature #9113]
* include/ruby/missing.h: include alternative malloc header to
  replace memory management functions.
* dln.c, io.c, parse.y, st.c: undef malloc family before
  re-definition to suppress warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46354 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/st.c b/st.c
index ff5bb305ab..f26443f99c 100644
--- a/st.c
+++ b/st.c
@@ -73,6 +73,10 @@ static const struct st_hash_type type_strcasehash = {
 static void rehash(st_table *);
 
 #ifdef RUBY
+#undef malloc
+#undef realloc
+#undef calloc
+#undef free
 #define malloc xmalloc
 #define calloc xcalloc
 #define realloc xrealloc