sys-libs/llvm-libunwind: Build local copy of libcxx for tests

Build a local copy of libcxx+libcxxabi for tests. This avoids a circular
dependency between llvm-libunwind and libcxx/libcxxabi, and also makes
it possible to run tests while building libcxx/libcxxabi against
different backends.

4 files changed, 158 insertions, 22 deletions

diff --git a/sys-libs/llvm-libunwind/Manifest b/sys-libs/llvm-libunwind/Manifest
index 18e0d0de59cb..98f7ad1e00f1 100644
--- a/sys-libs/llvm-libunwind/Manifest
+++ b/sys-libs/llvm-libunwind/Manifest
@@ -1,4 +1,5 @@
 DIST libcxx-6.0.0.src.tar.xz 1549328 BLAKE2B 93adb339b0e849fca1850d379c8e74b407b0db8220f3a05f888db70d83ad07c3200dbd2a7827f92c60a2ba91d3395e4d1b4434ba70479c29a95aceda6c213e02 SHA512 3d93910f85a778f36c5f7a4429639008acba5713a2c8ac79a9de09463af6f9a388af45d39af23423a7223660701697ba067f3391f25d5a970973691dd88635e3
+DIST libcxxabi-6.0.0.src.tar.xz 529212 BLAKE2B ae020e8831a6ae71d59d71e294bbb0aa6dbedf1b3036b2536d9456db8c51f21e57d082c5abf5e00921a14876328bdfafab3c04b4d761cb76d52e35ff97107510 SHA512 c5e4cc05105770b42b20595fdbda5e1483be4582bc94335da1a15531ba43a0ecf30e1e0a252f62d4d0e6c79cda9d44ff5fdbe69a0a295b2431fd6de158410e2e
 DIST libunwind-3.8.1.src.tar.xz 60596 BLAKE2B e200beab1388dc73a4ed6b1be0c4931124e48e21a3d5cc0bf01ac2ce57bbc2295bd0f72acb8fc08556aed963f0cb220bd3e47c3c953f570cf2860ae822a270c7 SHA512 2a60d7c4b0aee6c58f50089ac9fa2b756ab1d74faaee32f7436ddace4510589c7ffdd20478919966ed2fa8a23ee1b5d1b26115dbd8ee2834b00b5bcd61d00b14
 DIST libunwind-3.9.0.src.tar.xz 61764 BLAKE2B 215aa7cabf9e5d8d3e3dfc3bad50f0aad1b4d2d6bef96ac4c14d987b6aa4afd0a1c0f186d63d84edcc822fd8495a000b2a24899e61176831e0ddfabea1d5c3c2 SHA512 dce384bea99ed61b363b847e20946fc9d70377389a227cc7054fbaa916e7cb5ba0b9d89f0df6ed33409dbf38beefd3654c18c1abcf0e50b5d0315ce0135a1d25
 DIST libunwind-3.9.1.src.tar.xz 61788 BLAKE2B bab410d714e2dc012273997bb3fb3c366f64608b712eae15f8c08a2b049b6bdba0660a1f4942906e2e9cd7b11563c8a5b3007b92b1485c32036ac84f55fe7053 SHA512 a80f5d0660e209f5bf709316b5df2ca63b9f0db49f5f74dfe9c9e580c654f61a15acc071a739fdb84baf5ffa9420b92498f8560331173642d80f6b74e1e2afb7
diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-6.0.0.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-6.0.0.ebuild
index 6da407e13a12..a276429001f4 100644
--- a/sys-libs/llvm-libunwind/llvm-libunwind-6.0.0.ebuild
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-6.0.0.ebuild
@@ -11,11 +11,14 @@ inherit cmake-multilib llvm multiprocessing python-any-r1
 
 MY_P=libunwind-${PV/_/}.src
 LIBCXX_P=libcxx-${PV/_/}.src
+LIBCXXABI_P=libcxxabi-${PV/_/}.src
 
 DESCRIPTION="C++ runtime stack unwinder from LLVM"
 HOMEPAGE="https://github.com/llvm-mirror/libunwind"
 SRC_URI="https://releases.llvm.org/${PV/_//}/${MY_P}.tar.xz
-	test? ( https://releases.llvm.org/${PV/_//}/${LIBCXX_P}.tar.xz )"
+	test? (
+		https://releases.llvm.org/${PV/_//}/${LIBCXX_P}.tar.xz
+		https://releases.llvm.org/${PV/_//}/${LIBCXXABI_P}.tar.xz )"
 
 LICENSE="|| ( UoI-NCSA MIT )"
 SLOT="0"
@@ -25,13 +28,9 @@ RESTRICT="!test? ( test )"
 
 RDEPEND="!sys-libs/libunwind"
 # llvm-6 for new lit options
-# tests need libcxx with implicit -lunwind and libcxxabi
-# (but libcxx does not need to be built against it)
 DEPEND="
 	>=sys-devel/llvm-6
 	test? ( >=sys-devel/clang-3.9.0
-		sys-libs/libcxx[libunwind,${MULTILIB_USEDEP}]
-		sys-libs/libcxxabi[${MULTILIB_USEDEP}]
 		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
 
 S=${WORKDIR}/${MY_P}
@@ -48,14 +47,11 @@ pkg_setup() {
 }
 
 src_unpack() {
-	einfo "Unpacking ${MY_P}.tar.xz ..."
-	tar -xf "${DISTDIR}/${MY_P}.tar.xz" || die
+	default
 
 	if use test; then
-		einfo "Unpacking parts of ${LIBCXX_P}.tar.xz ..."
-		tar -xf "${DISTDIR}/${LIBCXX_P}.tar.xz" \
-			"${LIBCXX_P}"/{include,utils/libcxx} || die
 		mv "${LIBCXX_P}" libcxx || die
+		mv "${LIBCXXABI_P}" libcxxabi || die
 	fi
 }
 
@@ -88,7 +84,54 @@ multilib_src_configure() {
 	cmake-utils_src_configure
 }
 
+build_libcxxabi() {
+	local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/$(get_libdir)"
+	local CMAKE_USE_DIR=${WORKDIR}/libcxxabi
+	local BUILD_DIR=${BUILD_DIR}/libcxxabi
+	local mycmakeargs=(
+		-DLIBCXXABI_LIBDIR_SUFFIX=
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=OFF
+		-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+		-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${S}"/include
+	)
+
+	cmake-utils_src_configure
+	cmake-utils_src_compile
+}
+
+build_libcxx() {
+	local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/libcxxabi/lib -L${BUILD_DIR}/$(get_libdir)"
+	local CMAKE_USE_DIR=${WORKDIR}/libcxx
+	local BUILD_DIR=${BUILD_DIR}/libcxx
+	local mycmakeargs=(
+		-DLIBCXX_LIBDIR_SUFFIX=
+		-DLIBCXX_ENABLE_SHARED=ON
+		-DLIBCXX_ENABLE_STATIC=OFF
+		-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
+		-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+		-DLIBCXX_CXX_ABI=libcxxabi
+		-DLIBCXX_CXX_ABI_INCLUDE_PATHS="${WORKDIR}"/libcxxabi/include
+		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+		-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+		-DLIBCXX_HAS_GCC_S_LIB=OFF
+		-DLIBCXX_INCLUDE_TESTS=OFF
+	)
+
+	cmake-utils_src_configure
+	cmake-utils_src_compile
+}
+
 multilib_src_test() {
+	# build local copies of libc++ & libc++abi for testing to avoid
+	# circular deps
+	build_libcxxabi
+	build_libcxx
+	mv "${BUILD_DIR}"/libcxx*/lib/libc++* "${BUILD_DIR}/$(get_libdir)/" || die
+
 	cmake-utils_src_make check-unwind
 }
 
diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-6.0.9999.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-6.0.9999.ebuild
index 367803c62f09..303cfec21c9c 100644
--- a/sys-libs/llvm-libunwind/llvm-libunwind-6.0.9999.ebuild
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-6.0.9999.ebuild
@@ -24,13 +24,9 @@ RESTRICT="!test? ( test )"
 
 RDEPEND="!sys-libs/libunwind"
 # llvm-6 for new lit options
-# tests need libcxx with implicit -lunwind and libcxxabi
-# (but libcxx does not need to be built against it)
 DEPEND="
 	>=sys-devel/llvm-6
 	test? ( >=sys-devel/clang-3.9.0
-		sys-libs/libcxx[libunwind,${MULTILIB_USEDEP}]
-		sys-libs/libcxxabi[${MULTILIB_USEDEP}]
 		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
 
 # least intrusive of all
@@ -45,16 +41,19 @@ pkg_setup() {
 }
 
 src_unpack() {
-	# we need headers & test utilities
 	if use test; then
 		git-r3_fetch "https://git.llvm.org/git/libcxx.git
 			https://github.com/llvm-mirror/libcxx.git"
+		git-r3_fetch "https://git.llvm.org/git/libcxxabi.git
+			https://github.com/llvm-mirror/libcxxabi.git"
 	fi
 	git-r3_fetch
 
 	if use test; then
 		git-r3_checkout https://llvm.org/git/libcxx.git \
-			"${WORKDIR}"/libcxx '' include utils/libcxx
+			"${WORKDIR}"/libcxx
+		git-r3_checkout https://llvm.org/git/libcxxabi.git \
+			"${WORKDIR}"/libcxxabi
 	fi
 	git-r3_checkout
 }
@@ -88,7 +87,54 @@ multilib_src_configure() {
 	cmake-utils_src_configure
 }
 
+build_libcxxabi() {
+	local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/$(get_libdir)"
+	local CMAKE_USE_DIR=${WORKDIR}/libcxxabi
+	local BUILD_DIR=${BUILD_DIR}/libcxxabi
+	local mycmakeargs=(
+		-DLIBCXXABI_LIBDIR_SUFFIX=
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=OFF
+		-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+		-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${S}"/include
+	)
+
+	cmake-utils_src_configure
+	cmake-utils_src_compile
+}
+
+build_libcxx() {
+	local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/libcxxabi/lib -L${BUILD_DIR}/$(get_libdir)"
+	local CMAKE_USE_DIR=${WORKDIR}/libcxx
+	local BUILD_DIR=${BUILD_DIR}/libcxx
+	local mycmakeargs=(
+		-DLIBCXX_LIBDIR_SUFFIX=
+		-DLIBCXX_ENABLE_SHARED=ON
+		-DLIBCXX_ENABLE_STATIC=OFF
+		-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
+		-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+		-DLIBCXX_CXX_ABI=libcxxabi
+		-DLIBCXX_CXX_ABI_INCLUDE_PATHS="${WORKDIR}"/libcxxabi/include
+		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+		-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+		-DLIBCXX_HAS_GCC_S_LIB=OFF
+		-DLIBCXX_INCLUDE_TESTS=OFF
+	)
+
+	cmake-utils_src_configure
+	cmake-utils_src_compile
+}
+
 multilib_src_test() {
+	# build local copies of libc++ & libc++abi for testing to avoid
+	# circular deps
+	build_libcxxabi
+	build_libcxx
+	mv "${BUILD_DIR}"/libcxx*/lib/libc++* "${BUILD_DIR}/$(get_libdir)/" || die
+
 	cmake-utils_src_make check-unwind
 }
 
diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-9999.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-9999.ebuild
index f38e06e1ba4e..366cb0231027 100644
--- a/sys-libs/llvm-libunwind/llvm-libunwind-9999.ebuild
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-9999.ebuild
@@ -23,13 +23,9 @@ RESTRICT="!test? ( test )"
 
 RDEPEND="!sys-libs/libunwind"
 # llvm-6 for new lit options
-# tests need libcxx with implicit -lunwind and libcxxabi
-# (but libcxx does not need to be built against it)
 DEPEND="
 	>=sys-devel/llvm-6
 	test? ( >=sys-devel/clang-3.9.0
-		sys-libs/libcxx[libunwind,${MULTILIB_USEDEP}]
-		sys-libs/libcxxabi[${MULTILIB_USEDEP}]
 		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
 
 # least intrusive of all
@@ -44,16 +40,19 @@ pkg_setup() {
 }
 
 src_unpack() {
-	# we need headers & test utilities
 	if use test; then
 		git-r3_fetch "https://git.llvm.org/git/libcxx.git
 			https://github.com/llvm-mirror/libcxx.git"
+		git-r3_fetch "https://git.llvm.org/git/libcxxabi.git
+			https://github.com/llvm-mirror/libcxxabi.git"
 	fi
 	git-r3_fetch
 
 	if use test; then
 		git-r3_checkout https://llvm.org/git/libcxx.git \
-			"${WORKDIR}"/libcxx '' include utils/libcxx
+			"${WORKDIR}"/libcxx
+		git-r3_checkout https://llvm.org/git/libcxxabi.git \
+			"${WORKDIR}"/libcxxabi
 	fi
 	git-r3_checkout
 }
@@ -87,7 +86,54 @@ multilib_src_configure() {
 	cmake-utils_src_configure
 }
 
+build_libcxxabi() {
+	local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/$(get_libdir)"
+	local CMAKE_USE_DIR=${WORKDIR}/libcxxabi
+	local BUILD_DIR=${BUILD_DIR}/libcxxabi
+	local mycmakeargs=(
+		-DLIBCXXABI_LIBDIR_SUFFIX=
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=OFF
+		-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+		-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${S}"/include
+	)
+
+	cmake-utils_src_configure
+	cmake-utils_src_compile
+}
+
+build_libcxx() {
+	local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/libcxxabi/lib -L${BUILD_DIR}/$(get_libdir)"
+	local CMAKE_USE_DIR=${WORKDIR}/libcxx
+	local BUILD_DIR=${BUILD_DIR}/libcxx
+	local mycmakeargs=(
+		-DLIBCXX_LIBDIR_SUFFIX=
+		-DLIBCXX_ENABLE_SHARED=ON
+		-DLIBCXX_ENABLE_STATIC=OFF
+		-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
+		-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+		-DLIBCXX_CXX_ABI=libcxxabi
+		-DLIBCXX_CXX_ABI_INCLUDE_PATHS="${WORKDIR}"/libcxxabi/include
+		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+		-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+		-DLIBCXX_HAS_GCC_S_LIB=OFF
+		-DLIBCXX_INCLUDE_TESTS=OFF
+	)
+
+	cmake-utils_src_configure
+	cmake-utils_src_compile
+}
+
 multilib_src_test() {
+	# build local copies of libc++ & libc++abi for testing to avoid
+	# circular deps
+	build_libcxxabi
+	build_libcxx
+	mv "${BUILD_DIR}"/libcxx*/lib/libc++* "${BUILD_DIR}/$(get_libdir)/" || die
+
 	cmake-utils_src_make check-unwind
 }