# 2011 10 30  Mouse

# This script carefully avoids the use of localisms such as mtar and
#  mfind, since it is needed to build git, and mtar and mfind are
#  gitted.

# Make sure $LOCALROOT is set - for simplicity below, to avoid constantly
#   writing ${LOCALROOT:-/local}.
: ${LOCALROOT:=/local}

# Abbrevation for the version string
VER=3.76.1

# Unpack the .gz file.
gunzip < DIST/make-$VER.tar.gz | tar xvf -

# Fix the unpacked directory name, and work in it
mv make-$VER gnumake-$VER
cd gnumake-$VER

# Normally we'd do a paranoid check here, then normalize permissions,
#  but those would use mfind.
# mfind . ! -type f ! -type d -ls
# mfind . -type f ! -perm 07000/0 -ls
# mfind . -type d ! -perm 0775 -print | xargs chmod 775
# mfind . -type f -perm 0111/0 ! -perm 0664 -print | xargs chmod 664
# mfind . -type f ! -perm 0111/0 ! -perm 0775 -print | xargs chmod 775

# Configure it.  The "/dev/null"s are compiled into the source as part of
#  search paths; there seems to be no way to avoid having them there at all,
#  and the thing arrogantly insists on putting a few other directories in
#  those paths without any way to configure it otherwise.  The infodir is
#  because there seems to be no way to not have make install install the
#  info files, which we have no use for.  So we have it install them in a
#  trash directory that will get blown away when we remove the build area.
./configure --bindir=$LOCALROOT/.bin/gnumake-$VER --libdir=/dev/null --includedir=/dev/null --infodir=`pwd`/junk

# Build it
make

# Install it
make install

# The bloody thing installs itself as "make".  Rename it so we don't lose
#  the real make.
mv $LOCALROOT/.bin/gnumake-$VER/make $LOCALROOT/.bin/gnumake-$VER/gnumake

# The FSF seems more interested in pushing its religion than in documenting
#  its software in the way everybody else in the known world does.  Drop in
#  a minimalist manpage to at least explain....
mkdir -p $LOCALROOT/.man/gnumake-$VER/man1
cp ../manpage $LOCALROOT/.man/gnumake-$VER/man1/gnumake.1

# Clean up
cd ..
rm -rf gnumake-$VER