spkg-install

#!/usr/bin/env bash

if [ -z "$SAGE_LOCAL" ]; then
    echo >&2 "SAGE_LOCAL undefined ... exiting"
    echo >&2 "Maybe run 'sage --sh'?"
    exit 1
fi

if [ "x$CFLAG64" = x ]; then
    CFLAG64=-m64
fi

if [ "x$SAGE64" = xyes ]; then
    echo "Building a 64-bit version of bzip2"
    CFLAGS="$CFLAG64 $CFLAGS"
fi

export CFLAGS="-fPIC -O2 -g $CFLAGS"

cd src

########################################################################
# Build bzip2
########################################################################

# Since bzip2 doesn't use configure, we need to pass flags as arguments
# to make.
$MAKE CC="$CC" CFLAGS="$CFLAGS"
if [ $? -ne 0 ]; then
    echo >&2 "Error building bzip2"
    exit 1
fi

$MAKE install PREFIX="$SAGE_LOCAL" CC="$CC" CFLAGS="$CFLAGS"
if [ $? -ne 0 ]; then
    echo >&2 "Error installing bzip2"
    exit 1
fi

# Fix a bunch of hard-coding that bzip2 does during installation.
cd "$SAGE_LOCAL/bin"
rm bzcmp; ln -s bzdiff bzcmp
rm bzegrep; ln -s bzgrep bzegrep
rm bzfgrep; ln -s bzgrep bzfgrep
rm bzless; ln -s bzmore bzless