#!/bin/sh

PRECOMP_SUPPORT=no

COMPILER=$1

VERBOSE=$2

case "$COMPILER" in

icpc)

    cat >header.h <<EOF

#define HEADER_H

EOF

    >header.cpp

    cat >source.cpp <<EOF

#ifndef HEADER_H

#error no go

#endif

EOF

    rm -f header.pchi

    $COMPILER -pch-create header.pchi -include header.h -c header.cpp -o header.o >/dev/null 2>&1 \

        && $COMPILER -pch-use header.pchi -include header.h -c source.cpp -o source.o >/dev/null 2>&1 \

        && PRECOMP_SUPPORT=yes

    rm -f header.h header.cpp source.cpp

    rm -f header.pchi header.o source.o

    ;;

*g++*|c++)

    case `"$COMPILER" -dumpversion 2>/dev/null` in

    3.*)

        ;;

    *)

        >precomp_header.h

        if $COMPILER -x c-header precomp_header.h >/dev/null 2>&1; then

           $COMPILER -x c++-header precomp_header.h && PRECOMP_SUPPORT=yes

        fi

        rm -f precomp_header.h precomp_header.h.gch

        ;;

    esac

    ;;

esac

# done

if [ "$PRECOMP_SUPPORT" != "yes" ]; then

    [ "$VERBOSE" = "yes" ] && echo "Precompiled-headers support disabled."

    exit 0

else

    [ "$VERBOSE" = "yes" ] && echo "Precompiled-headers support enabled."

    exit 1

fi