eonix/configure

#!/bin/sh
QEMU_EXECUTABLES="qemu-system-i386 qemu-system-x86_64"
GDB_EXECUTABLES="gdb x86_64-elf-gdb"

event() {
    printf "$1... "
}

event "finding qemu"
for item in $QEMU_EXECUTABLES; do
    if $item --version > /dev/null 2>&1; then
        QEMU="$item"
        break
    fi
done
if [ "$QEMU" = "" ]; then
    echo "failed"
    exit 1
fi
echo "$QEMU"

event "finding gdb"
for item in $GDB_EXECUTABLES; do
    if $item --version > /dev/null 2>&1; then
        GDB="$item"
        break
    fi
done
if [ "$GDB" = "" ]; then
    echo "failed"
    exit 1
fi
echo "$GDB"

event "checking os type"
OS=`uname`
case "$OS" in
    "Linux")
        echo "Linux"
        QEMU_ACCEL='-enable-kvm'
        ;;
    "Darwin")
        echo "macOS"
        QEMU_ACCEL='-accel hvf'
        ;;
    *)
        echo "unknown"
        exit 1
        ;;
esac

event "checking cross compiling"
if [ "$CROSS_COMPILE" != "" ]; then
    echo "yes"
    CROSS_COMPILE_FLAG='--toolchain cross-compile.cmake'
else
    echo "no"
    CROSS_COMPILE_FLAG=
fi

cp Makefile.src Makefile
sed -i '' "s/##PLACEHOLDER_1##/$QEMU/" Makefile
sed -i '' "s/##PLACEHOLDER_2##/$GDB/" Makefile
sed -i '' "s/##PLACEHOLDER_3##/$QEMU_ACCEL/" Makefile
sed -i '' "s/##PLACEHOLDER_4##/$CROSS_COMPILE_FLAG/" Makefile