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# MINGW Settings:
# Due to inconsistencies between distributions, mingw versions, binaries,
# and directories must be determined (or defined) prior to building.
# This script expects the following variables:
# * OS - currently ubuntu, rhel, or suse. In the future we may attempt to
# detect the platform.
# * MINGW_CMAKE_FILE - if set, a cmake toolchain file will be created
# * MINGW_POSIX_FLAGS - if set, Mingw Posix compatibility mode will be
# enabled by defining the according flags.
# -Common mingw settings-
MINGW_PREFIX="x86_64-w64-mingw32-"
MINGW_BASE="x86_64-w64-mingw32"
MINGW_CPP="${MINGW_BASE}-c++"
MINGW_DLLTOOL="${MINGW_BASE}-dlltool"
MINGW_WINDRES="${MINGW_BASE}-windres"
MINGW_STRIP="${MINGW_BASE}-strip"
MINGW_OBJCOPY="${MINGW_BASE}-objcopy"
# -Distribution specific mingw settings-
case "$OS" in
ubuntu)
mingwPosix="-posix"
mingwLibDir="/usr/lib/gcc"
mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
mingwTargetLibDir="${mingwLibDir}/${MINGW_BASE}/${mingwVersion}"
mingwLibpthreadDir="/usr/${MINGW_BASE}/lib"
PTW32Include=/usr/share/mingw-w64/include
PTW32Lib=/usr/x86_64-w64-mingw32/lib
;;
rhel)
mingwPosix=""
mingwLibDir="/usr/lib64/gcc"
mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
mingwTargetLibDir="/usr/${MINGW_BASE}/sys-root/mingw/bin"
mingwLibpthreadDir="$mingwTargetLibDir"
PTW32Include=/usr/x86_64-w64-mingw32/sys-root/mingw/include
PTW32Lib=/usr/x86_64-w64-mingw32/sys-root/mingw/lib
;;
suse)
mingwPosix=""
mingwLibDir="/usr/lib64/gcc"
mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
mingwTargetLibDir="/usr/${MINGW_BASE}/sys-root/mingw/bin"
mingwLibpthreadDir="$mingwTargetLibDir"
PTW32Include=/usr/x86_64-w64-mingw32/sys-root/mingw/include
PTW32Lib=/usr/x86_64-w64-mingw32/sys-root/mingw/lib
;;
*)
echo "$ID is unknown, automatic mingw configuration is not possible."
exit 1
;;
esac
# -Common mingw settings, dependent upon distribution specific settings-
MINGW_FIND_ROOT_LIB_PATH="${mingwLibDir}/\${TOOLCHAIN_PREFIX}/${mingwVersion}"
MINGW_CC="${MINGW_BASE}-gcc${mingwPosix}"
MINGW_CXX="${MINGW_BASE}-g++${mingwPosix}"
# End MINGW configuration
if [[ -n $MINGW_CMAKE_FILE ]]; then
cat > $MINGW_CMAKE_FILE <<EOL
set(CMAKE_SYSTEM_NAME Windows)
set(TOOLCHAIN_PREFIX ${MINGW_BASE})
set(CMAKE_SYSTEM_PROCESSOR x86_64)
# We'll need to use posix threads in order to use
# C++11 features, such as std::thread.
set(CMAKE_C_COMPILER \${TOOLCHAIN_PREFIX}-gcc${mingwPosix})
set(CMAKE_CXX_COMPILER \${TOOLCHAIN_PREFIX}-g++${mingwPosix})
set(CMAKE_RC_COMPILER \${TOOLCHAIN_PREFIX}-windres)
set(CMAKE_FIND_ROOT_PATH /usr/\${TOOLCHAIN_PREFIX} ${MINGW_FIND_ROOT_LIB_PATH})
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# TODO: consider switching this to "ONLY". The issue with
# that is that all our libs should then be under
# CMAKE_FIND_ROOT_PATH and CMAKE_PREFIX_PATH would be ignored.
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE BOTH)
EOL
if [[ -n $MINGW_POSIX_FLAGS ]]; then
cat >> $MINGW_CMAKE_FILE <<EOL
# Some functions (e.g. localtime_r) will not be available unless we set
# the following flag.
add_definitions(-D_POSIX=1)
add_definitions(-D_POSIX_C_SOURCE=1)
add_definitions(-D_POSIX_=1)
add_definitions(-D_POSIX_THREADS=1)
EOL
fi
fi
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