Libjpeg

Download Source:	http://ftp.osuosl.org/pub/blfs/6.2.0/j/jpegsrc.v8d.tar.gz
Required Patch:	http://svn.cross-lfs.org/svn/repos/patches/jpeg/jpeg-8d-config_update-1.patch
Required Patch for PowerPC:	http://svn.cross-lfs.org/svn/repos/patches/jpeg/jpeg-8d-ppc-1.patch
Optional Patch:	http://svn.cross-lfs.org/svn/repos/patches/jpeg/jpeg-8d-destdir-1.patch

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Introduction to Libjpeg

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

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

Configuration Information

Note

If you wish to use DESTDIR when installing libjpeg, the optional patch above must be applied.

Non-Multilib

Apply the optional, DESTDIR, patch:

patch -Np1 -i ../jpeg-8d-destdir-1.patch

Compile the package:

patch -Np1 -i ../jpeg-8d-config_update-1.patch &&
./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

Apply the optional, DESTDIR, patch:

patch -Np1 -i ../jpeg-8d-destdir-1.patch

Compile the package:

patch -Np1 -i ../jpeg-8d-config_update-1.patch &&
CC="gcc ${BUILD32}" ./configure --prefix=/usr --enable-static --enable-shared &&
make

Install the package

make install

N32

Apply the optional, DESTDIR, patch:

patch -Np1 -i ../jpeg-8d-destdir-1.patch

Compile the package:

patch -Np1 -i ../jpeg-8d-config_update-1.patch &&
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

Apply the optional, DESTDIR, patch:

patch -Np1 -i ../jpeg-8d-destdir-1.patch

Compile the package:

patch -Np1 -i ../jpeg-8d-config_update-1.patch &&
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.