Android: undefined reference to rpl_malloc

Description of problem:

When cross compiling GnuTLS for Android using the NDK (reproduced with r23 and r25), GnuTLS declares rpl_malloc but doesn't seem to build an implementation, causing a link error: cannot locate symbol "rpl_malloc"

Version of gnutls used:

Bug reproduced with GnuTLS 3.7.6 This seems to be a regression, since the bug can't be reproduced with GnuTLS 3.7.1

Distributor of gnutls

Using official tarballs from gnupg.org.