diff -r 065b9ded4bf2 -r feeb67be5886 common/autoconf/boot-jdk.m4
--- a/common/autoconf/boot-jdk.m4	Mon Mar 31 14:06:57 2014 -0700
+++ b/common/autoconf/boot-jdk.m4	Wed Apr 02 10:01:38 2014 -0700
@@ -316,7 +316,7 @@
 
     # Minimum amount of heap memory.
     ADD_JVM_ARG_IF_OK([-Xms64M],boot_jdk_jvmargs,[$JAVA])
-    if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
+    if test "x$OPENJDK_TARGET_OS" = "xmacosx" || test "x$OPENJDK_TARGET_CPU" = "xppc64" ; then
       # Why does macosx need more heap? Its the huge JDK batch.
       ADD_JVM_ARG_IF_OK([-Xmx1600M],boot_jdk_jvmargs,[$JAVA])
     else