Fix name mangling issues.

Move je_* definitions from jemalloc_macros.h.in to jemalloc_defs.h.in,
because only the latter is an autoconf header (#undef substitution
occurs).

Fix unit tests to use automatic mangling, so that e.g. mallocx is
macro-substituted to becom jet_mallocx.

test/include/test/jemalloc_test.h.in

@@ -64,6 +64,7 @@
  */
 #ifdef JEMALLOC_UNIT_TEST
 #  define JEMALLOC_JET
+#  define JEMALLOC_MANGLE
 #  include "jemalloc/internal/jemalloc_internal.h"
 
 /******************************************************************************/

test/unit/mq.c

@@ -39,7 +39,7 @@ thd_receiver_start(void *arg)
 	for (i = 0; i < (NSENDERS * NMSGS); i++) {
 		mq_msg_t *msg = mq_get(mq);
 		assert_ptr_not_null(msg, "mq_get() should never return NULL");
-		jet_dallocx(msg, 0);
+		dallocx(msg, 0);
 	}
 	return (NULL);
 }
@@ -53,7 +53,7 @@ thd_sender_start(void *arg)
 	for (i = 0; i < NMSGS; i++) {
 		mq_msg_t *msg;
 		void *p;
-		p = jet_mallocx(sizeof(mq_msg_t), 0);
+		p = mallocx(sizeof(mq_msg_t), 0);
 		assert_ptr_not_null(p, "Unexpected allocm() failure");
 		msg = (mq_msg_t *)p;
 		mq_put(mq, msg);