Add project files

breeze/cmake/toolchains/linux-arm32-gcc.cmake

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+# linux-arm32-gcc: GCC building for 32-bit ARM (armhf) Linux.
+#
+#   On 32-bit ARM hardware: a native build with the ordinary g++.
+#   Any other Linux machine: a cross build with arm-linux-gnueabihf-g++.
+#                 breeze/scripts/setup.sh installs this for you on apt
+#                 (g++-arm-linux-gnueabihf) or, from a COPR, dnf
+#                 (arm-linux-gnueabihf-{binutils,gcc,glibc}); not through
+#                 pacman -- on Arch it exists only in the AUR, as ARM's own
+#                 prebuilt toolchain split into four packages
+#                 (arm-linux-gnueabihf-{binutils,glibc-headers,glibc,gcc}-bin;
+#                 x64 hosts only -- see the README, "32-bit ARM on Arch").
+#                 That GCC is built for the triple arm-none-linux-gnueabihf,
+#                 and finds its assembler and C library by that name, so the
+#                 four have to be installed together: a source-built binutils
+#                 or glibc beside it is the mix that fails (_common.cmake
+#                 warns about both symptoms). If qemu-arm 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-arm32-gcc")
+pmn_linux_toolchain(arm32 gcc)