source: trunk/essentials/dev-lang/perl/ext/util/make_ext@ 3221

#!/bin/sh

# This script acts as a simple interface for building extensions.
# It primarily used by the perl Makefile:
#
# d_dummy $(dynamic_ext): miniperl preplibrary FORCE
#       @sh ext/util/make_ext dynamic $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL)
#
# It may be deleted in a later release of perl so try to
# avoid using it for other purposes.

target=$1;  shift
extspec=$1; shift
makecmd=$1; shift  # Should be something like MAKE=make
passthru="$*" # allow extra macro=value to be passed through
echo ""

# Previously, $make was taken from config.sh.  However, the user might
# instead be running a possibly incompatible make.  This might happen if
# the user types "gmake" instead of a plain "make", for example.  The
# correct current value of MAKE will come through from the main perl
# makefile as MAKE=/whatever/make in $makecmd.  We'll be cautious in
# case third party users of this script (are there any?) don't have the
# MAKE=$(MAKE) argument, which was added after 5.004_03.
case "$makecmd" in
MAKE=*)
        eval $makecmd
        ;;
*)      echo 'ext/util/make_ext:  WARNING:  Please include MAKE=$(MAKE)'
        echo '  in your call to make_ext.  See ext/util/make_ext for details.'
        exit 1
        ;;
esac


case $CONFIG in
'')
    if test -f config.sh; then TOP=.;
    elif test -f ../config.sh; then TOP=..;
    elif test -f ../../config.sh; then TOP=../..;
    elif test -f ../../../config.sh; then TOP=../../..;
    elif test -f ../../../../config.sh; then TOP=../../../..;
    else
        echo "Can't find config.sh generated by Configure"; exit 1
    fi
    . $TOP/config.sh
    ;;
esac

if test "X$extspec" = X; then
        echo "make_ext: no extension specified"
        exit 1;
fi

# The Perl Makefile.SH will expand all extensions to
#       lib/auto/X/X.a  (or lib/auto/X/Y/Y.a if nested)
# A user wishing to run make_ext might use
#       X (or X/Y or X::Y if nested)

# canonise into X/Y form (pname)
case "$extspec" in
lib*)   # Remove lib/auto prefix and /*.* suffix
        pname=`echo "$extspec" | sed -e 's:^lib/auto/::' -e 's:/[^/]*\.[^/]*$::' ` ;;
ext*)   # Remove ext/ prefix and /pm_to_blib suffix
        pname=`echo "$extspec" | sed -e 's:^ext/::' -e 's:/pm_to_blib$::' ` ;;
*::*)   # Convert :: to /
        pname=`echo "$extspec" | sed -e 's/::/\//g' ` ;;
*)      pname="$extspec" ;;
esac
# echo "Converted $extspec to $pname"

mname=`echo "$pname"   | sed -e 's!/!::!g'`
depth=`echo "$pname"   | sed -e 's![^/][^/]*!..!g'`
makefile=Makefile
makeargs=''
makeopts=''

if test ! -d "ext/$pname"; then
    echo "      Skipping $extspec (directory does not exist)"
    exit 0 # not an error ?
fi


echo "  Making $mname ($target)"

cd ext/$pname

# check link type and do any preliminaries.  Valid link types are
# 'dynamic', 'static', and 'static_pic' (the last one respects
# CCCDLFLAGS such as -fPIC -- see static_target in the main Makefile.SH)
case "$target" in
dynamic)    makeargs="LINKTYPE=dynamic";
            target=all
            ;;
static)     makeargs="LINKTYPE=static CCCDLFLAGS="
            target=all
            ;;
static_pic) makeargs="LINKTYPE=static"
            target=all
            ;;
nonxs)      makeargs="";
            target=all
            ;;

*clean) # If Makefile has been moved to Makefile.old by a make clean
            # then use Makefile.old for realclean rather than rebuild it
            if test ! -f $makefile -a -f Makefile.old; then
                makefile=Makefile.old
                makeopts="-f $makefile"
                echo "Note: Using Makefile.old"
            fi
            ;;

*)      # for the time being we are strict about what make_ext is used for
        echo "make_ext: unknown make target '$target'"; exit 1
        ;;
'')     echo "make_ext: no make target specified (eg static or dynamic)"; exit 1
        ;;
esac

if test ! -f $makefile ; then
        test -f Makefile.PL && ../$depth/miniperl -I../$depth/lib Makefile.PL INSTALLDIRS=perl PERL_CORE=1 $passthru
fi
if test ! -f $makefile ; then
        if test -f Makefile.SH; then
                echo "Warning: Writing $makefile from old-style Makefile.SH!"
                sh Makefile.SH
        else
                echo "Warning: No Makefile!"
        fi
fi

case "$target" in
clean)          ;;
realclean)      ;;
*)      # Give makefile an opportunity to rewrite itself.
        # reassure users that life goes on...
        $MAKE config $passthru || echo "$MAKE config failed, continuing anyway..."
        ;;
esac

$MAKE $makeopts $target $makeargs $passthru || exit

exit $?