Libjpeg: Difference between revisions

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!Download Source:
!Download Source:
| http://www.ijg.org/files/jpegsrc.v{{Libjpeg-Version}}.tar.gz
| http://www.ijg.org/files/jpegsrc.v{{Libjpeg-Version}}.tar.gz
|-valign="top"
!Required Patch:
| http://svn.cross-lfs.org/svn/repos/patches/jpeg/jpeg-{{Libjpeg-Version}}-config_update-1.patch
|-valign="top"
!Required Patch for PowerPC:
| http://svn.cross-lfs.org/svn/repos/patches/jpeg/jpeg-{{Libjpeg-Version}}-ppc-1.patch
|}
|}


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== Dependencies ==
== Dependencies ==
== Note to DESTDIR Fans ==
Unfortunately, Libjpeg ignores DESTDIR and has no equivalent, so you're going to have to either edit the Makefile, or you have to call '''make install''' as follows:
make bindir=<DESTDIR>/usr/bin \
mandir=<DESTDIR>/usr/man/man1 \
libdir=<DESTDIR>/usr/lib \
includedir=<DESTDIR>/usr/include install
Of course <DESTDIR> is whatever path that you'd normally set DESTDIR to, and if you're installing the N32 or 64Bit versions, you need to change libdir to /usr/lib32 or /usr/lib64 as appropriate.
You also have to create the target directories before running '''make install''' since it won't create them for you:
  install -dv <DESTDIR>/usr/bin
  install -dv <DESTDIR>/usr/man/man1
  install -dv <DESTDIR>/usr/lib (or lib{32} or lib{64})
  install -dv <DESTDIR>/usr/include


== Non-Multilib ==
== Non-Multilib ==
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Compile the package:
Compile the package:


patch -Np1 -i ../jpeg-{{Libjpeg-Version}}-config_update-1.patch &&
  ./configure --prefix=/usr --enable-static --enable-shared &&
  ./configure --prefix=/usr --enable-static --enable-shared &&
  make
  make
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Compile the package:
Compile the package:


patch -Np1 -i ../jpeg-{{Libjpeg-Version}}-config_update-1.patch &&
  CC="gcc ${BUILD32}" ./configure --prefix=/usr --enable-static --enable-shared &&
  CC="gcc ${BUILD32}" ./configure --prefix=/usr --enable-static --enable-shared &&
  make
  make
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Compile the package:
Compile the package:


patch -Np1 -i ../jpeg-{{Libjpeg-Version}}-config_update-1.patch &&
  CC="gcc ${BUILDN32}" ./configure --prefix=/usr --libdir=/usr/lib32 \
  CC="gcc ${BUILDN32}" ./configure --prefix=/usr --libdir=/usr/lib32 \
     --enable-static --enable-shared &&
     --enable-static --enable-shared &&
Line 82: Line 55:
Compile the package:
Compile the package:


patch -Np1 -i ../jpeg-{{Libjpeg-Version}}-config_update-1.patch &&
  CC="gcc ${BUILD64}" ./configure --prefix=/usr --libdir=/usr/lib64 \
  CC="gcc ${BUILD64}" ./configure --prefix=/usr --libdir=/usr/lib64 \
     --enable-static --enable-shared &&
     --enable-static --enable-shared &&
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| library is used by many programs for reading and writing JPEG format files.
| library is used by many programs for reading and writing JPEG format files.
|}
|}
[[Category:Graphics Libraries]]

Latest revision as of 11:40, 11 November 2009

Download Source: http://www.ijg.org/files/jpegsrc.v8d.tar.gz

Introduction to Libjpeg

Libjpeg is a library developed by the Independent JPEG Group for JPEG image compression.

Project Homepage: http://www.ijg.org/

Dependencies

Non-Multilib

Compile the package: 

./configure --prefix=/usr --enable-static --enable-shared &&
make

Install the package 

make install

Command Explanations

--enable-static --enable-shared: These switches tell libjpeg to build both shared and static libraries.

Multilib

32Bit

Compile the package: 

CC="gcc ${BUILD32}" ./configure --prefix=/usr --enable-static --enable-shared &&
make

Install the package 

make install

N32

Compile the package: 

CC="gcc ${BUILDN32}" ./configure --prefix=/usr --libdir=/usr/lib32 \
    --enable-static --enable-shared &&
make libdir=/usr/lib32

Install the package 

make libdir=/usr/lib32 install

64Bit

Compile the package: 

CC="gcc ${BUILD64}" ./configure --prefix=/usr --libdir=/usr/lib64 \
    --enable-static --enable-shared &&
make libdir=/usr/lib64

Install the package 

make libdir=/usr/lib64 install

Contents

Installed Programs: cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom
Installed Libraries: libjpeg.{a,la,so}
Installed Directories: None

Short Descriptions

cjpeg compresses image files to produce a JPEG/JFIF file on the standard output. Currently supported input file formats are: PPM (PBMPLUS color format), PGM (PBMPLUS gray-scale format), BMP, and Targa.
djpeg decompresses image files from JPEG/JFIF format to either PPM (PBMPLUS color format), PGM (PBMPLUS gray-scale format), BMP, or Targa format.
jpegtran is used for lossless transformation of JPEG files.
rdjpgcom displays text comments from within a JPEG file.
wrjpgcom inserts text comments into a JPEG file.
libjpeg.{so,a} library is used by many programs for reading and writing JPEG format files.
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