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|
#!/bin/sh
# confhc -- detect installed Haskell compilers and versions
# author: Malcolm.Wallace@cs.york.ac.uk, Sept 1999
# added "hmake interactive" config, May 2000
# removed support for nhc13, Nov 2001
# simplified for hmake3, Jan 2002
# modified for hat, June 2002
MACHINE=${MACHINE-`script/harch`}
PWD=`pwd`
echo "Looking for already-installed Haskell compilers:"
# Assume that we start out with a blank config.
NHCKNOWN=
HMAKEKNOWN=
# We need a working BSD-style `echo' command: at least Solaris may not have it.
# (The calling script must have already compiled our emulated 'echo'.)
case `echo -n hello | wc -c | ( read n ; echo $n )` in
5) ;;
*) echo () { $PWD/script/echo "$@"; } ;;
esac
# We need a working `which' command: CYGWIN at least doesn't have it,
# and some installed 'which's behave badly, e.g. Solaris, OSF/1.
#if which which >/dev/null 2>&1 && ( which which | grep -v Warning >/dev/null )
#then
# echo -n ""
#else
# echo "No builtin 'which' command - attempting to emulate it."
which () {
( for path in `echo \"$PATH\" | sed -e 's/:/\" \"/g'`
do
thefile=`echo $path | tr -d "\""`/$1
if [ -f "$thefile" -a -x "$thefile" ]
then echo $thefile
exit 0
fi
done; exit 1 )
}
#fi
# Not interested in HBC...
# ...
# First look for GHC. Determining version number here is due to Simon Marlow.
echo -n " Looking for ghc... "
if which ghc >/dev/null 2>&1
then
GHCKNOWN=`which ghc`
GHCVERSION=`${GHCKNOWN} --version 2>&1 | sed 's/^.*version[ ]*\([0-9.]*\).*/\1/'`
echo $GHCVERSION | tr "." " " | ( read x y z; echo $x$y | sed "s/^\(.\)\(.\)$/\10\2/"; ) \
>targets/$MACHINE/ghcsym;
fi
if [ "$GHCKNOWN" = "" ]
then
echo "(not found)"
else
echo "found ${GHCVERSION}"
fi
# There may be another version of ghc to look for.
COMP=$1
if [ "`echo $COMP | cut -c1-3`" = "ghc" ]
then
VER=`echo $COMP | cut -c5-`
if [ -n "$VER" -a "$VER" != "$GHCVERSION" ]
then
echo -n " Looking for $COMP... "
if which $COMP >/dev/null 2>&1
then
GHC2KNOWN=`which $COMP`
GHC2VERSION=`${GHC2KNOWN} --version 2>&1 | sed 's/^.*version[ ]*\([0-9.]*\).*/\1/'`
echo $GHC2VERSION | tr "." " " | ( read x y z; echo $x$y; ) \
>targets/$MACHINE/ghcsym;
fi
if [ "$GHC2KNOWN" = "" ]
then echo "(not found)"
else echo "found ${GHC2VERSION}"
fi
fi
fi
if [ -n "$GHCKNOWN" ]
then if [ `cat targets/$MACHINE/ghcsym` -lt "504" ]
then echo " WARNING: hat-2.02 needs a version of ghc >= 5.04."
GHCKNOWN=
fi
fi
# Now, check for an installation of nhc98.
echo -n " Looking for nhc98... "
if which nhc98 >/dev/null 2>&1
then
NHCKNOWN=`which nhc98`
NHCVERSION=`${NHCKNOWN} --version | head -1 | cut -d' ' -f2`
fi
if [ "$NHCKNOWN" != "" ]
then
echo "found ${NHCVERSION}"
if [ `echo $NHCVERSION | tr ".va" " " | ( read x y z; echo $x$y; )` -lt "115" ]
then echo " WARNING: hat-2.02 needs a version of nhc98 >= 1.16."
NHCKNOWN=
fi
else
echo "(not found)"
fi
# Finally, check for an installation of hmake.
echo -n " Looking for hmake... "
if which hmake >/dev/null 2>&1
then
HMAKEKNOWN=`which hmake`
HMAKEVERSION=`${HMAKEKNOWN} --version | head -1 | cut -d' ' -f2 | cut -c1-4`
HMAKENUM=`echo ${HMAKEVERSION} | tr "." " " | ( read x y; echo $x$y; )`
fi
if [ "$HMAKEKNOWN" != "" ]
then
echo "found ${HMAKEVERSION}"
if [ "$HMAKENUM" -lt "305" ]
then echo " ERROR: hat needs a version of hmake >= 3.05."
exit 1
fi
else
echo "(not found)"
fi
if [ -z "$GHCKNOWN" -a -z "$NHCKNOWN" ]
then echo "ERROR: hat needs at least one of ghc or nhc98."
exit 1
fi
if [ "$1" = "" ]
then
BUILDHMAKE=
echo -n "I am guessing that you want to use "
# in order of preference: ghc, then nhc98.
if [ "$GHCKNOWN" = "" ];
then
echo -n nhc98
BUILDHMAKE=nhc98
else
echo -n "ghc (not nhc98)"
BUILDHMAKE=ghc
fi
else
BUILDHMAKE=$1
echo -n "You said you want to use $BUILDHMAKE"
fi
echo " to build hat."
# ---- ----
export GHCKNOWN NHCKNOWN HMAKEKNOWN
echo $BUILDHMAKE >targets/$MACHINE/buildwith
echo "Done."
exit 0
|
