configure

WITH_GCC=0
WITH_DEBUG=0
WITH_GPROF=0
VERBOSE=1
COLOR=0

for arg in $@
do
    if test "$arg" = "--with-gcc"
    then
        WITH_GCC=1
    elif test "$arg" = "--with-debug"
    then
        WITH_DEBUG=1
    elif test "$arg" = "--with-gprof"
    then
        WITH_GPROF=1
    elif test "$arg" = "--verbose"
    then
        VERBOSE=1
    elif test "$arg" = "--no-verbose"
    then
        VERBOSE=0
    elif test "$arg" = "--color"
    then
        COLOR=1
    elif test "$arg" = "--help"
    then
        echo 'usage: '$0' [--with-gcc] [--with-debug] [--with-gprof] [--verbose] [--color]'
        echo '        --with-gcc     use gcc instead of clang'
        echo '        --with-debug   no optimization and with debug symbolr'
        echo '        --with-gprof   use gprof, see gprof documentation'
        echo '        --verbose      verbose output for make (can be override with V=1 or 0)'
        echo '        --no-verbose   opposite of --verbose'
        echo '        --color        color output for make (can be override with COLOR=1 or 0)'
        exit 0;
    else
        echo "Unknow arg: $arg --help for display help"
        exit 1
    fi
done

if test $WITH_GCC -eq 1
then
    CXX=g++
else
    CXX=clang++
fi

if test $WITH_DEBUG -eq 1
then
    CXXFLAGS=-g3
else
    CXXFLAGS="-O3 -march=native"
    CPPFLAGS=-DNDEBUG
fi

if test $WITH_GPROF -eq 1
then
    CXX=g++
    LDFLAGS=-pg
    CXXFLAGS="$CXXFLAGS -pg"
fi

echo CXX=$CXX > Makefile.mk
echo CXXFLAGS+=$CXXFLAGS >> Makefile.mk
echo LDFLAGS+=$LDFLAGS >> Makefile.mk
echo CPPFLAGS+=$CPPFLAGS >> Makefile.mk
echo V?=${VERBOSE} >> Makefile.mk
echo COLOR?=${COLOR} >> Makefile.mk
echo -n "SRCS=" > sources && find src/ -type f -name '*.cpp' -printf "     %-74p\\\\\n" | sort | sed '1s/     //'  >> sources 


echo "If you changed some settings, don't forget to: make clean"