--- R-2.13.1-r1.ebuild	2011-09-25 08:23:59.000000000 +0200
+++ R-2.13.1-r1.ebuild	2011-09-27 22:21:18.781641743 +0200
@@ -4,7 +4,7 @@
 
 EAPI=4
 
-inherit bash-completion eutils flag-o-matic fortran-2 versionator
+inherit autotools bash-completion eutils flag-o-matic fortran-2 versionator java-pkg-opt-2
 
 DESCRIPTION="Language and environment for statistical computing and graphics"
 HOMEPAGE="http://www.r-project.org/"
@@ -37,7 +37,8 @@
 	dev-util/pkgconfig
 	doc? ( virtual/latex-base
 	  || ( dev-texlive/texlive-fontsrecommended
-		   app-text/ptex ) )"
+		   app-text/ptex ) )
+	java? ( >=virtual/jdk-1.5 )"
 
 RDEPEND="${CDEPEND}
 	( || ( <sys-libs/zlib-1.2.5.1-r1 >=sys-libs/zlib-1.2.5.1-r2[minizip] ) )
@@ -54,6 +55,10 @@
 		tc-has-openmp || die "Please enable openmp support in your compiler"
 	fi
 	fortran-2_pkg_setup
+	# Selects the build VM according to DEPEND and user preferences.
+	# Also sets VM specific addpredict and environment variables.
+	# Does nothing if java is disabled.
+	java-pkg-opt-2_pkg_setup
 	filter-ldflags -Wl,-Bdirect -Bdirect
 	# avoid using existing R installation
 	unset R_HOME
@@ -105,9 +110,16 @@
 	fi
 	use perl && \
 		export PERL5LIB="${S}/share/perl:${PERL5LIB:+:}${PERL5LIB}"
+
+	java-pkg-opt-2_src_prepare
 }
 
 src_configure() {
+	# configure shouldn't run checks for java if disabled.
+	# Requires properly setup JVM or a addpredict hack for
+	# /proc/self/coredump_filter and possibly others.
+	# $(use_enable java)
+
 	econf \
 		--enable-byte-compiled-packages \
 		--enable-R-shlib \