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, 1 insertions, 0 deletions

diff --git a/dln.c b/dln.c
index b3522f111c..25e40cf1e6 100644
--- a/dln.c
+++ b/dln.c
@@ -47,6 +47,7 @@ void *xcalloc();
 void *xrealloc();
 #endif
 
+#undef free
 #define free(x) xfree(x)
 
 #include <stdio.h>