#!/bin/bash

# flex.SlackBuild
# by Stuart Winter <stuart@armedslack.org> for the Slackware porting Project.
# Heavily based on the original Slackware build script.
# 01-Jun-2004

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
export CWD=$SLACKSOURCE/$PKGSERIES/$PACKAGE
export PORTCWD=$PWD

# Temporary build locations:
export TMPBUILD=$TMP/build-$PACKAGE
export PKG=$TMP/package-$PACKAGE
mkpkgdirs # Delete and re-create temporary directories

# Determine the CFLAGS for the known architectures:
case $PORTARCH in
   arm)     ARCH_CFLAGS="-O2 -march=armv3 -mtune=xscale" ;;
   powerpc) ARCH_CFLAGS="-O2 " ;;
   sparc)   ARCH_CFLAGS="-O2" ;;
   *)       ARCH_CFLAGS="-O2" ;;
esac

# Untar source:
tar zxvvf $CWD/$PACKAGE-$VERSION.tar.gz
cd $PACKAGE-*
slackhousekeeping

# Modify flex to work with newer, standards-complient gcc:
zcat $CWD/flex-2.5.4a-skel.patch.gz | patch -p1 --verbose
zcat $CWD/flex-2.5.4-glibc22.patch.gz | patch -p1 --verbose
zcat $CWD/flex-2.5.4a-gcc3.patch.gz | patch -p1 --verbose
zcat $CWD/flex-2.5.4a-gcc31.patch.gz | patch -p1 --verbose
zcat $CWD/flex-2.5.4a2.patch.gz | patch -p1 --verbose

# Install docs:
mkdir -p $PKG/usr/doc/$PACKAGE-$VERSION/MISC
cp -a INSTALL NEWS README \
      $PKG/usr/doc/$PACKAGE-$VERSION
( cd MISC
  cp -a EBCDIC README alloca.c debflex.awk parse.c parse.h \
        testxxLexer.l fastwc \
        $PKG/usr/doc/$PACKAGE-$VERSION/MISC )

# Configure:
CFLAGS="$ARCH_CFLAGS" \
./configure \
   --prefix=/usr || failconfig

# Build:
make CFLAGS="$ARCH_CFLAGS" LDFLAGS=-s || failmake

# Start fake root server
start_fakeroot

# Explode the package framework:
( cd $PKG && explodepkg $CWD/_flex.tar.gz )

# Install binaries:
install -m755 flex $PKG/usr/bin
install -m644 FlexLexer.h $PKG/usr/include
install -m644 libfl.a $PKG/usr/lib

# Install man pages:
install -m644 flex.1 $PKG/usr/man/man1

# Install info pages:
cd MISC/texinfo
makeinfo flex.texi
mkdir -p $PKG/usr/info
install -m644 flex.info $PKG/usr/info
  
# Slackware policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # set all files to root.root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh

# Build the package:
if [ $PORTARCH = arm ]; then
   . $PORTCWD/arm/pkger
 else
   makepkg -l y -c n $PKGSTORE/$PKGSERIES/$PACKAGE-$VERSION-$ARCH-$BUILD.tgz
fi

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links