We don't want to require last-rited dmalloc for tests.
--- a/testsuite/Makefile.am
+++ b/testsuite/Makefile.am
@@ -63,7 +63,7 @@ DEFS = -DLOCALEDIR=\"$(localedir)\" @DEFS@
 LIBS = @LIBINTL@ @LIBS@
 
 AM_CPPFLAGS = -I../src -I../intl -I$(top_srcdir)/intl @DEPS_CFLAGS@ @SNDFILE_CFLAGS@ @CHECK_CFLAGS@ @DMALLOC_CFLAGS@
-AM_CFLAGS = -DVERSION='"@VERSION@"' -DPACKAGE='"@PACKAGE@"' -DUSE_DMALLOC
+AM_CFLAGS = -DVERSION='"@VERSION@"' -DPACKAGE='"@PACKAGE@"'
 
 AM_YFLAGS = -d
 AM_LFLAGS=-olex.yy.c