diff --git a/bindings/java/build.xml.in b/bindings/java/build.xml.in
index 8a1e96b44f..bdce5daf29 100644
--- a/bindings/java/build.xml.in
+++ b/bindings/java/build.xml.in
@@ -2,8 +2,8 @@
 <project basedir="." default="build" name="linkgrammar">
     <property environment="env"/>
     <property name="debuglevel" value="source,lines,vars"/>
-    <property name="target" value="1.7"/>
-    <property name="source" value="1.7"/>
+    <property name="target" value="1.8"/>
+    <property name="source" value="1.8"/>
     <target name="init">
         <mkdir dir="bin"/>
         <copy includeemptydirs="false" todir="bin">
diff --git a/link-grammar/parse/extract-links.c b/link-grammar/parse/extract-links.c
index e2ce266bcc..3a60e34d38 100644
--- a/link-grammar/parse/extract-links.c
+++ b/link-grammar/parse/extract-links.c
@@ -12,7 +12,11 @@
 /*************************************************************************/
 
 #include <limits.h>                     // INT_MAX
+#ifdef __APPLE__
+#include <malloc/malloc.h>
+#else
 #include <malloc.h>                     // malloc_trim
+#endif
 #include <math.h>                       // log2
 
 #include "connectors.h"
@@ -294,7 +298,7 @@ void free_extractor(extractor_t * pex)
 
 	xfree((void *) pex, sizeof(extractor_t));
 
-#if defined __GLIBC__
+#if defined __GLIBC__ && defined HAVE_MALLOC_TRIM
 	// malloc_trim() is a gnu extension.  An alternative would be
 	// to call madvise(MADV_DONTNEED) but this is more complicated.
 	if (trim) malloc_trim(0);
diff --git a/link-grammar/resources.c b/link-grammar/resources.c
index 95042371be..18fa2bf91e 100644
--- a/link-grammar/resources.c
+++ b/link-grammar/resources.c
@@ -48,7 +48,7 @@ int getrusage(int who, struct rusage *rusage);
 /** Returns the CPU usage time, for this thread only, in seconds. */
 static double current_usage_time(void)
 {
-#if !defined(_WIN32)
+#if !defined(_WIN32) && !defined(__APPLE__)
 	struct rusage u;
 	getrusage (RUSAGE_THREAD, &u);
 	return (u.ru_utime.tv_sec + ((double) u.ru_utime.tv_usec) / 1000000.0);