Add project files

breeze/cmake/toolchains/linux-arm64-gcc.cmake

@@ -0,0 +1,15 @@
+# linux-arm64-gcc: GCC building for 64-bit ARM (aarch64) Linux.
+#
+#   On ARM64 hardware: a native build with the ordinary g++.
+#   Any other Linux machine: a cross build with aarch64-linux-gnu-g++.
+#                 breeze/scripts/setup.sh installs this for you on apt
+#                 (g++-aarch64-linux-gnu), pacman (aarch64-linux-gnu-gcc), or,
+#                 from a COPR, dnf (aarch64-linux-gnu-{binutils,gcc,glibc}).
+#                 If qemu-aarch64 is installed it is registered as the
+#                 emulator, so ctest can run the result.
+#
+# See _common.cmake (pmn_linux_toolchain) for the details and overrides.
+include("${CMAKE_CURRENT_LIST_DIR}/_common.cmake")
+
+pmn_toolchain_target("linux-arm64-gcc")
+pmn_linux_toolchain(arm64 gcc)