Issue 1097: Optimized builds running out of stack on linux machines

compiler/scripts/dartc.sh

Index: compiler/scripts/dartc.sh
diff --git a/compiler/scripts/dartc.sh b/compiler/scripts/dartc.sh
index cb792a8d84040c2ef183494ceefe10b6c4766f9e..02f221f918a9fa7474b705b0d6d4e9e90eb34f15 100755
--- a/compiler/scripts/dartc.sh
+++ b/compiler/scripts/dartc.sh
@@ -11,13 +11,13 @@ if [ -x /usr/libexec/java_home ]; then
   export JAVA_HOME=$(/usr/libexec/java_home -v '1.6+')
 fi
 
-EXTRA_JVMARGS=
+EXTRA_JVMARGS="-Xss2M "
 OS=`uname | tr [A-Z] [a-z]`
 if [ "$OS" == "darwin" ] ; then
   # Bump up the heap on Mac VMs, some of which default to 128M or less.
   # Users can specify DART_JVMARGS in the environment to override
   # this setting.
-  EXTRA_JVMARGS="-Xmx256M -Xss2M"
+  EXTRA_JVMARGS+="-Xmx256M"
 fi
 
 exec java $EXTRA_JVMARGS $DART_JVMARGS -ea -classpath "@CLASSPATH@" \