package/llvm-project/llvm-libunwind: new package

Starting with version 15, lld needs the llvm implementation
of libunwind, therefore it is added as a host package.

Signed-off-by: Daniel Lang <d.lang@abatec.at>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Sebastian Weyer <sebastian.weyer@smile.fr>
Tested-by: Adam Duskett <adam.duskett@amarulasolutions.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/llvm-project/llvm-libunwind/llvm-libunwind.hash

@@ -0,0 +1,3 @@
+# locally computed
+sha256  0ab6e07bf05359e242e9ea80e4089b819914867fa997a715e324e584bcfdf114  libunwind-15.0.3.src.tar.xz
+sha256  b5efebcaca80879234098e52d1725e6d9eb8fb96a19fce625d39184b705f7b6d  LICENSE.TXT

package/llvm-project/llvm-libunwind/llvm-libunwind.mk

@@ -0,0 +1,18 @@
+################################################################################
+#
+# llvm-libunwind
+#
+################################################################################
+
+LLVM_LIBUNWIND_VERSION = 15.0.3
+LLVM_LIBUNWIND_SITE = $(LLVM_PROJECT_SITE)
+LLVM_LIBUNWIND_SOURCE = libunwind-$(LLVM_LIBUNWIND_VERSION).src.tar.xz
+LLVM_LIBUNWIND_LICENSE = Apache-2.0 with exceptions
+LLVM_LIBUNWIND_LICENSE_FILES = LICENSE.TXT
+LLVM_LIBUNWIND_SUPPORTS_IN_SOURCE_BUILD = NO
+
+HOST_LLVM_LIBUNWIND_CONF_OPTS += \
+	-DCMAKE_MODULE_PATH="$(HOST_DIR)/lib/cmake/llvm" \
+	-DLIBUNWIND_INSTALL_HEADERS=ON
+
+$(eval $(host-cmake-package))