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#!/bin/sh
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#
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# Copyright 2018 Helmut Grohne <helmut@subdivi.de>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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# THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Usage: pass the host architecture as a parameter:
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#
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# ./debtoolchainfilegen armhf > cmake_toolchain_armhf.cmake
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ARCH=$1
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DEB_HOST_GNU_TYPE=$(dpkg-architecture -f "-a$1" -qDEB_HOST_GNU_TYPE)
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DEB_HOST_GNU_CPU=$(dpkg-architecture -f "-a$1" -qDEB_HOST_GNU_CPU)
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case "$(dpkg-architecture -f "-a$1" -qDEB_HOST_ARCH_OS)" in
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linux) system_name=Linux; ;;
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kfreebsd) system_name=kFreeBSD; ;;
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hurd) system_name=GNU; ;;
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*) exit 1; ;;
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esac
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cat <<EOF
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# Use it while calling CMake:
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# mkdir build; cd build
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# cmake -DCMAKE_TOOLCHAIN_FILE="/path/to/cmake_toolchain_<arch>.cmake" ../
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#
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set(CMAKE_SYSTEM_NAME "$system_name")
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set(CMAKE_SYSTEM_PROCESSOR "$DEB_HOST_GNU_CPU")
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set(CMAKE_C_COMPILER "$DEB_HOST_GNU_TYPE-gcc")
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set(CMAKE_CXX_COMPILER "$DEB_HOST_GNU_TYPE-g++")
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set(PKG_CONFIG_EXECUTABLE "$DEB_HOST_GNU_TYPE-pkg-config")
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set(PKGCONFIG_EXECUTABLE "$DEB_HOST_GNU_TYPE-pkg-config")
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EOF
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