setup_conan.sh

setup_conan.sh

#!/bin/bash

function die {
    echo "$*" 1>&2 ;
    exit 1;
}

CC=${CC:-/usr/bin/gcc}
CXX=${CXX:-/usr/bin/g++}

echo "CC: $CC"
echo "CXX: $CXX"

_COMPILER_MACRO=$(echo '#include <stdlib.h>' | $CXX -dM -E -)

function get {
    echo -n "$_COMPILER_MACRO" | grep "define $1" | sed -re "s/.*$1\s+(\S+)/\1/g"
}

GLIBC_MAJOR=$(get "__GLIBC__")

if [ -z "$GLIBC_MAJOR" ]; then
    GLIBC_VER=""
else
    GLIBC_MINOR=$(get "__GLIBC_MINOR__")
    GLIBC_VER="$GLIBC_MAJOR.$GLIBC_MINOR"
fi

echo "GLIBC_VER: $GLIBC_VER"

COMPILER=$(get "__clang__")
if [ -n "$COMPILER" ]; then
    COMPILER="clang"
else
    COMPILER=$(get "__GNUC__")
    if [ -n "$COMPILER" ]; then
        COMPILER="gcc"
    else
        COMPILER="unknown"
    fi
fi

echo "COMPILER: $COMPILER"

if [ "$COMPILER" == "gcc" ]; then
    COMPILER_MAJOR=$(get "__GNUC__")
    COMPILER_MINOR=$(get "__GNUC_MINOR__")
    COMPILER_VER="$COMPILER_MAJOR.$COMPILER_MINOR"
elif [ "$COMPILER" == "clang" ]; then
    COMPILER_MAJOR=$(get "__clang_major__")
    COMPILER_MINOR=$(get "__clang_minor__")
    COMPILER_VER="$COMPILER_MAJOR.$COMPILER_MINOR"
else
    COMPILER_VER=""
fi

echo "COMPILER_VER: $COMPILER_VER"


LIBSTDCXX_VER=$(strings $($CXX --print-file-name=libstdc++.so.6) | grep GLIBCXX_3 | sed -e 's/GLIBCXX_//g' | sort -r -t '.' -h -k 3 | head -1)
LIBSTDCXX_VER_PATCH=$(echo "$LIBSTDCXX_VER" | awk -F . '{ print $3 }')

echo "LIBSDCXX_VER: $LIBSTDCXX_VER"

if [ $(($LIBSTDCXX_VER_PATCH + 0)) -ge 21 ]; then
    LIBCXX="libstdc++11"
else
    LIBCXX="libstdc++"
fi

mkdir -p $HOME/.conan/profile

cat << EOF >$HOME/.conan/profile/default
[build_requires]
[settings]
os=Linux
os.glibc=$GLIBC_VER
arch=x86_64
compiler=$COMPILER
compiler.libstdcxx=$LIBSTDCXX_VER
compiler.version=$COMPILER_VER
compiler.libcxx=$LIBCXX
build_type=Release
[env]
CC=$CC
CXX=$CXX
EOF