--- /dev/null
+--- jamvm-1.3.1.orig/src/jam.h 2005-07-17 23:53:34.000000000 +0200
++++ jamvm-1.3.1/src/jam.h 2005-07-17 23:54:17.000000000 +0200
+@@ -548,7 +548,9 @@
+ #endif
+
+ /* default size of the Java stack */
++#ifndef DEFAULT_STACK
+ #define DEFAULT_STACK 64*KB
++#endif
+
+ /* size of emergency area - big enough to create
+ a StackOverflow exception */
--- /dev/null
+DESCRIPTION = "A compact Java Virtual Machine which conforms to the JVM specification version 2."
+HOMEPAGE = "http://jamvm.sourceforge.net/"
+LICENSE = "GPL"
+PRIORITY = "optional"
+MAINTAINER = "Rene Wagner <rw@handhelds.org>"
+SECTION = "interpreters"
+
+DEPENDS = "zlib classpath"
+RDEPENDS = "classpath (>= 0.14) classpath-common (>= 0.14)"
+
+SRC_URI = "${SOURCEFORGE_MIRROR}/${PN}/${P}.tar.gz \
+ file://size-defaults.patch;patch=1"
+
+inherit autotools update-alternatives
+
+EXTRA_OECONF = "--with-classpath-install-dir=${prefix}"
+CFLAGS += "-DDEFAULT_MAX_HEAP=16*MB"
+
+PROVIDES = "virtual/java"
+ALTERNATIVE_NAME = "java"
+ALTERNATIVE_PATH = "${bindir}/jamvm"
+ALTERNATIVE_PRIORITY = "10"