graphics/mozjpeg: New maintainer, new options.

Signed-off-by: B. Watson <yalhcru@gmail.com>

4 files changed, 142 insertions, 35 deletions

diff --git a/graphics/mozjpeg/README b/graphics/mozjpeg/README
index 24f5cd7e3f..7853d2ec80 100644
--- a/graphics/mozjpeg/README
+++ b/graphics/mozjpeg/README
@@ -1,6 +1,36 @@
-Improved JPEG encoder.
+mozjpeg (Mozilla JPEG Encoder Project)
 
-This will not interfere with Slackware's libjpeg,
-as it installs to /opt/.
+mozjpeg is a fork of libjpeg-turbo from Mozilla Research. Its goal is to
+reduce the size of JPEG files without reducing quality or compatibility
+with the vast majority of the world's deployed decoders. The idea is to
+reduce transfer times for JPEGs on the Web, thus reducing page load times.
 
-The binaries are in /opt/libmozjpeg/bin/.
+mozjpeg is not intended to be a general JPEG library replacement. It makes
+tradeoffs that are intended to benefit Web use cases and focuses solely
+on improving encoding. It is best used as part of a Web encoding workflow.
+
+In essence, libjpeg-turbo (as shipped with Slackware) is optimized for
+speed of encoding/decoding, while mozjpeg is optimized for encoding
+smaller file sizes (at the expense of speed). mozjpeg will not interfere
+with Slackware's libjpeg-turbo package, as it installs to /opt/mozjpeg/.
+
+mozjpeg supports multiple versions of the libjpeg API. By default,
+version 6b is built. If you need compatibility with libjpeg 7 or 8,
+set API=7 or API=8 in the script's environment.
+
+Optionally, mozjpeg can be built with Java wrapper support for
+turbojpeg. To do this, install one of: jdk, openjdk, openjdk8, or
+openjdk6. Then run this script with JAVA=yes in the environment.
+
+To run the binaries, it's probably easiest to add this to ~/.bash_profile:
+
+export PATH=/opt/mozjpeg/bin:$PATH
+export MANPATH=/opt/mozjpeg/man:$MANPATH
+
+To compile & link with the mozjpeg libraries, use -I/opt/mozjpeg/include
+and -L/opt/mozjpeg/lib (or lib64). You might also want -static, or else
+-Wl,-rpath,/opt/mozjpeg/lib (or lib64).
+
+If you built with JAVA=yes, the java library will be installed
+as /opt/mozjpeg/classes/turbojpeg.jar, and the docs will be in
+/usr/doc/mozjpeg-$VERSION/javadoc.
diff --git a/graphics/mozjpeg/mozjpeg.SlackBuild b/graphics/mozjpeg/mozjpeg.SlackBuild
index 3fa8bf15d9..4ab2efb0d2 100644
--- a/graphics/mozjpeg/mozjpeg.SlackBuild
+++ b/graphics/mozjpeg/mozjpeg.SlackBuild
@@ -2,8 +2,11 @@
 
 # Slackware build script for mozjpeg
 
+# Originally written by:
 # Ryan P.C. McQuen | Everett, WA | ryanpcmcquen@member.fsf.org
 
+# Now maintained by B. Watson (yalhcru@gmail.com)
+
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
@@ -22,14 +25,23 @@
 # with this program (most likely, a file named COPYING).  If not, see
 # <http://www.gnu.org/licenses/>.
 
+# 20170310 bkw:
+# - take over maintenance
+# - i486 => i586
+# - build static lib also
+# - expand README and slack-desc
+# - add JAVA=yes option
+# - add API=7 and API=8 options
+# - BUILD=2
+
 PRGNAM=mozjpeg
 VERSION=${VERSION:-3.1}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
   case "$( uname -m )" in
-    i?86) ARCH=i486 ;;
+    i?86) ARCH=i586 ;;
     arm*) ARCH=arm ;;
        *) ARCH=$( uname -m ) ;;
   esac
@@ -40,8 +52,8 @@ TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
 
-if [ "$ARCH" = "i486" ]; then
-  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
   LIBDIRSUFFIX=""
 elif [ "$ARCH" = "i686" ]; then
   SLKCFLAGS="-O2 -march=i686 -mtune=i686"
@@ -60,11 +72,7 @@ rm -rf $PKG
 mkdir -p $TMP $PKG $OUTPUT
 cd $TMP
 rm -rf $PRGNAM-$VERSION
-if [ -e $CWD/v$VERSION.tar.gz ]; then
-  tar xvf $CWD/v$VERSION.tar.gz
-else
-  tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
-fi
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
 cd $PRGNAM-$VERSION
 chown -R root:root .
 find -L . \
@@ -73,24 +81,93 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+# JAVA=yes only tested with openjdk and openjdk6. We source the profile.d
+# script here in case someone's *just* installed jdk|openjdk, so they
+# won't have to log out & back in to get this built. This mostly helps
+# out sbopkg users.
+JAVA="${JAVA:-no}"
+if [ "$JAVA" = "yes" ]; then
+  EXTRAOPTS="--with-java "
+
+  # Find a JDK. Presumably a sane admin will only have one of these
+  # profile scripts executable, even if he's installed all of them.
+  # TODO: maybe let the user specify the JDK to use instead? I'm not
+  # sure it actually matters that much ("write once, run anywhere" should
+  # mean a .jar built with openjdk will run with Oracle's jdk, right? But
+  # there's JNI (native code) involved...)
+  for i in jdk openjdk8 openjdk openjdk6; do
+    if [ -x /etc/profile.d/$i.sh ]; then
+      source /etc/profile.d/$i.sh
+      break
+    fi
+  done
+
+  # Whichever jdk we decided to use, use its JAVA_HOME. Unfortunately
+  # mozjpeg ignores the *standard* JAVA_HOME env var, so we persuade
+  # it thus:
+  sed -i "s,/usr/java,$JAVA_HOME,g" configure.ac
+fi
+
+
 autoreconf -fiv
-./configure \
-  --disable-static
 
-make CFLAGS="$SLKCFLAGS"
-make install DESTDIR=$PKG
+# TODO: really, there should be a way to build multiple API versions, with
+# file paths that don't clash: /opt/mozjpeg/jpeg$API/(bin|lib|include).
+# I'll save this for the 3.2 release. Had a look at 3.2-pre, it has
+# pkg-config support, which would make this job easier I think.
+API="${API:-6b}"
+case "$API" in
+  6b) ;; # do nothing, this is the default
+  7|8)  EXTRAOPTS="$EXTRAOPTS --with-jpeg$API" ;;
+  *)    echo "Invalid API version, supported versions are 6b 7 8" 1>&2
+        exit 1
+        ;;
+esac
+
+# 20170310 bkw: This stuff needs documenting, or I'll forget why
+# I did it this way.
+
+# Leaving off all the --prefix and related options below, since the
+# default prefix is already /opt/mozjpeg.
+
+# Ryan's version of this script had --disable-static, but I'm leaving
+# that off, because sometimes static libs are easier to deal with when
+# you're linking with libraries outside the system /usr/lib(64) dir.
+
+# The LDFLAGS gibberish below is to force the binaries in /opt/mozjpeg/bin
+# to use the libraries in /opt/mozjpeg/lib(64), otherwise they use the
+# system libjpeg in /usr/lib(64) which partly defeats the purpose of
+# having optimized jpeg libs...
+
+LDFLAGS="-Wl,-rpath,/opt/$PRGNAM/lib$LIBDIRSUFFIX" \
+CFLAGS="$SLKCFLAGS" \
+CXXFLAGS="$SLKCFLAGS" \
+./configure \
+  $EXTRAOPTS \
+  --build=$ARCH-slackware-linux
 
-find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
-  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+# the java stuff chokes without -j1, everything else is OK.
+if [ "$JAVA" = "yes" ]; then
+  make -j1 -C java
+fi
 
-find $PKG/opt/${PRGNAM}/man/ -type f -exec gzip -9 {} \;
+make # V=1
+make install-strip DESTDIR=$PKG
+gzip $PKG/opt/$PRGNAM/man/man?/*.?
 
-mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/
-cp -a BUILDING.txt LICENSE.txt README $PKG/usr/doc/$PRGNAM-$VERSION
+# docs are installed in /opt already (except the license)
+mkdir -p $PKG/usr/doc
+mv $PKG/opt/$PRGNAM/doc $PKG/usr/doc/$PRGNAM-$VERSION
+ln -s ../../../usr/doc/$PRGNAM-$VERSION $PKG/opt/$PRGNAM/doc
+cp -a LICENSE.txt $PKG/usr/doc/$PRGNAM-$VERSION
 cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
 
+[ "$JAVA" = "yes" ] && cp -a java/doc $PKG/usr/doc/$PRGNAM-$VERSION/javadoc
+
 mkdir -p $PKG/install
-cat $CWD/slack-desc > $PKG/install/slack-desc
+sed -e "s,@API@,$API," -e "s,@JAVA@,$JAVA," \
+  $CWD/slack-desc > \
+  $PKG/install/slack-desc
 
 cd $PKG
 /sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
diff --git a/graphics/mozjpeg/mozjpeg.info b/graphics/mozjpeg/mozjpeg.info
index b8fa02330e..8e78bc0f0b 100644
--- a/graphics/mozjpeg/mozjpeg.info
+++ b/graphics/mozjpeg/mozjpeg.info
@@ -1,10 +1,10 @@
 PRGNAM="mozjpeg"
 VERSION="3.1"
 HOMEPAGE="https://github.com/mozilla/mozjpeg"
-DOWNLOAD="https://github.com/mozilla/mozjpeg/archive/v3.1.tar.gz"
+DOWNLOAD="https://github.com/mozilla/mozjpeg/archive/v3.1/mozjpeg-3.1.tar.gz"
 MD5SUM="c61d693a16d529fa92be7544a5c2e7f9"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
 REQUIRES=""
-MAINTAINER="Ryan P.C. McQuen"
-EMAIL="ryanpcmcquen@member.fsf.org"
+MAINTAINER="B. Watson"
+EMAIL="yalhcru@gmail.com"
diff --git a/graphics/mozjpeg/slack-desc b/graphics/mozjpeg/slack-desc
index 3cb4bbb8e0..5845e2e976 100644
--- a/graphics/mozjpeg/slack-desc
+++ b/graphics/mozjpeg/slack-desc
@@ -6,14 +6,14 @@
 # customary to leave one space after the ':' except on otherwise blank lines.
 
        |-----handy-ruler------------------------------------------------------|
-mozjpeg: mozjpeg (improved jpeg encoder)
-mozjpeg:
-mozjpeg: mozjpeg is a variety of jpeg encoding tools.
-mozjpeg:
-mozjpeg:
-mozjpeg:
-mozjpeg:
-mozjpeg: https://github.com/mozilla/mozjpeg
-mozjpeg:
+mozjpeg: mozjpeg (Mozilla JPEG Encoder Project)
 mozjpeg:
+mozjpeg: mozjpeg is a fork of libjpeg-turbo from Mozilla Research. Its
+mozjpeg: goal is to reduce the size of JPEG files without reducing quality
+mozjpeg: or compatibility with the vast majority of the world's deployed
+mozjpeg: decoders. The idea is to reduce transfer times for JPEGs on the Web,
+mozjpeg: thus reducing page load times.
 mozjpeg:
+mozjpeg: This package was built with these options:
+mozjpeg: libjpeg API version: @API@
+mozjpeg: Java support: @JAVA@