* gc.c: fix build failure on FreeBSD introduced by r43763.

  malloc_usable_size() is defined by malloc_np.h on FreeBSD.

* configure.in: check malloc.h and malloc_np.h.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43769 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 1 deletions

diff --git a/gc.c b/gc.c
index d34ff9c4de..0f111cdbf3 100644
--- a/gc.c
+++ b/gc.c
@@ -40,7 +40,11 @@
 #   define malloc_usable_size(a) _msize(a)
 # endif
 #else
-# include <malloc.h>
+# ifdef HAVE_MALLOC_H
+#  include <malloc.h>
+# elif defined(HAVE_MALLOC_NP_H)
+#  include <malloc_np.h>
+# endif
 #endif
 
 #if /* is ASAN enabled? */ \