Difference between revisions of "Libjpeg"
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== Introduction to libjpeg == | == Introduction to libjpeg == | ||
− | + | <Package Description Needed> | |
== Dependencies == | == Dependencies == |
Revision as of 22:04, 11 January 2007
Download Source: | http://www.ijg.org/files/jpegsrc.v8d.tar.gz |
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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 |
Contents
Introduction to libjpeg
<Package Description Needed>
Dependencies
Additional Configuration Options
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 pass the following flags to make install (with <DESTDIR> of course being what you would normally set DESTDIR to):
bindir=<DESTDIR>/usr/bin mandir=<DESTDIR>/usr/man/man1, libdir=<DESTDIR>/usr/lib (or lib32 or lib64) includedir=<DESTDIR>/usr/include
You also have to create the target directories before running make install:
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
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
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
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
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 |
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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. |
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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. |