--- /dev/null
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-utils llvm python-single-r1 toolchain-funcs
+
+DESCRIPTION="The LLVM debugger"
+HOMEPAGE="http://llvm.org/"
+SRC_URI="http://releases.llvm.org/${PV/_//}/${P/_/}.src.tar.xz
+ test? ( http://releases.llvm.org/${PV/_//}/llvm-${PV/_/}.src.tar.xz )"
+
+LICENSE="UoI-NCSA"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="libedit ncurses python test"
+
+RDEPEND="
+ libedit? ( dev-libs/libedit:0= )
+ ncurses? ( >=sys-libs/ncurses-5.9-r3:0= )
+ python? ( dev-python/six[${PYTHON_USEDEP}]
+ ${PYTHON_DEPS} )
+ ~sys-devel/clang-${PV}[xml]
+ ~sys-devel/llvm-${PV}
+ !<sys-devel/llvm-4.0"
+# swig-3.0.9+ generates invalid wrappers, #598708
+# upstream: https://github.com/swig/swig/issues/769
+DEPEND="${RDEPEND}
+ python? ( <dev-lang/swig-3.0.9 )
+ test? ( ~dev-python/lit-${PV}[${PYTHON_USEDEP}] )
+ ${PYTHON_DEPS}"
+
+REQUIRED_USE=${PYTHON_REQUIRED_USE}
+
+S=${WORKDIR}/${P/_/}.src
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+pkg_setup() {
+ LLVM_MAX_SLOT=${PV%%.*} llvm_pkg_setup
+ python-single-r1_pkg_setup
+}
+
+src_unpack() {
+ default
+
+ if use test; then
+ mv llvm-* llvm || die
+ fi
+}
+
+src_prepare() {
+ # fix tests in stand-alone build
+ eapply "${FILESDIR}"/4.0.1/0001-test-Fix-finding-LLDB-tools-when-building-stand-alon.patch
+ # fix compatibility with new libedit
+ eapply "${FILESDIR}"/4.0.1/0002-Fix-bug-28898.patch
+
+ eapply_user
+}
+
+src_configure() {
+ local mycmakeargs=(
+ -DLLDB_DISABLE_CURSES=$(usex !ncurses)
+ -DLLDB_DISABLE_LIBEDIT=$(usex !libedit)
+ -DLLDB_DISABLE_PYTHON=$(usex !python)
+ -DLLVM_ENABLE_TERMINFO=$(usex ncurses)
+
+ -DLLVM_BUILD_TESTS=$(usex test)
+ # compilers for lit tests
+ -DLLDB_TEST_C_COMPILER="$(type -P clang)"
+ -DLLDB_TEST_CXX_COMPILER="$(type -P clang++)"
+ # compiler for ole' python tests
+ -DLLDB_TEST_COMPILER="$(type -P clang)"
+
+ # TODO: fix upstream to detect this properly
+ -DHAVE_LIBDL=ON
+ -DHAVE_LIBPTHREAD=ON
+
+ # normally we'd have to set LLVM_ENABLE_TERMINFO, HAVE_TERMINFO
+ # and TERMINFO_LIBS... so just force FindCurses.cmake to use
+ # ncurses with complete library set (including autodetection
+ # of -ltinfo)
+ -DCURSES_NEED_NCURSES=ON
+ )
+ use test && mycmakeargs+=(
+ -DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
+ -DLIT_COMMAND="${EPREFIX}/usr/bin/lit"
+ )
+
+ cmake-utils_src_configure
+}
+
+src_test() {
+ cmake-utils_src_make check-lldb-lit
+ use python && cmake-utils_src_make check-lldb
+}
+
+src_install() {
+ cmake-utils_src_install
+
+ # oh my...
+ if use python; then
+ # remove bundled six module
+ rm "${D}$(python_get_sitedir)/six.py" || die
+
+ # remove custom readline.so for now
+ # TODO: figure out how to deal with it
+ # upstream is basically building a custom readline.so with -ledit
+ # to avoid symbol collisions between readline and libedit...
+ rm "${D}$(python_get_sitedir)/readline.so" || die
+
+ # byte-compile the modules
+ python_optimize
+ fi
+}
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