BUILDING.txt - external/github.com/libjpeg-turbo/libjpeg-turbo - Git at Google

 *******************************************************************************
 **     Building on Unix Platforms, Cygwin, and MinGW
 *******************************************************************************

 ==================
 Build Requirements
 ==================

 -- autoconf 2.56 or later
    * If using MinGW, this can be obtained by installing the MSYS DTK

 -- automake 1.7 or later
    * If using MinGW, this can be obtained by installing the MSYS DTK

 -- libtool 1.4 or later
    * If using MinGW, this can be obtained by installing the MSYS DTK

 -- NASM
    * 0.98 or later is required for a 32-bit build
    * NASM 2.05 or later is required for a 64-bit build
    * NASM 2.07 or later is required for a 64-bit build on OS/X (10.6 "Snow
      Leopard" or later.)  This can be obtained from MacPorts
      (http://www.macports.org/).

    The NASM 2.05 RPMs do not work on older Linux systems, such as Enterprise
    Linux 4.  On such systems, you can easily build and install NASM 2.05
    from the source RPM by executing the following as root:

      ARCH=`uname -m`
      wget http://www.nasm.us/pub/nasm/releasebuilds/2.05.01/nasm-2.05.01-1.src.rpm
      rpmbuild --rebuild nasm-2.05.01-1.src.rpm
      rpm -Uvh /usr/src/redhat/RPMS/$ARCH/nasm-2.05.01-1.$ARCH.rpm

    NOTE: NASM build will fail if texinfo is not installed.

 -- GCC v4.1 or later recommended for best performance

 ======================
 Building libjpeg-turbo
 ======================

 The following procedure will build libjpeg-turbo on Linux, 32-bit OS X, and
 Solaris/x86 systems (on Solaris, this generates a 32-bit library.  See below
 for 64-bit build instructions.)

   cd libjpeg-turbo
   autoreconf -fiv
   sh ./configure
   make

 NOTE: Running autoreconf is only necessary if building libjpeg-turbo from the
 SVN repository.

 This will generate the following files under .libs/

   libjpeg.a
       Static link library for libjpeg-turbo

   libjpeg.so.62.0.0 (Linux, Solaris)
   libjpeg.62.dylib (OS X)
   libjpeg-62.dll (MinGW)
   cygjpeg-62.dll (Cygwin)
       Shared library for libjpeg-turbo

   libjpeg.so (Linux, Solaris)
   libjpeg.dylib (OS X)
   libjpeg.dll.a (Cygwin, MinGW)
       Development stub for libjpeg-turbo shared library

   libturbojpeg.a
       Static link library for TurboJPEG/OSS

   libturbojpeg.so (Linux, Solaris)
   libturbojpeg.dylib (OS X)
       Shared library and development stub for TurboJPEG/OSS

   libturbojpeg.dll (MinGW)
   cygturbojpeg.dll (Cygwin)
       Shared library for TurboJPEG/OSS

   libturbojpeg.dll.a (Cygwin, MinGW)
       Development stub for TurboJPEG/OSS shared library

 ========================
 Installing libjpeg-turbo
 ========================

 If you intend to install these libraries and the associated header files, then
 replace 'make' in the instructions above with

   make install prefix={base dir} libdir={library directory}

 For example,

   make install prefix=/usr/local libdir=/usr/local/lib64

 will install the header files in /usr/local/include and the library files in
 /usr/local/lib64.  If 'prefix' and 'libdir' are not specified, then the default
 is to install the header files in /opt/libjpeg-turbo/include and the library
 files in /opt/libjpeg-turbo/lib.

 NOTE: You can specify a prefix of /usr and a libdir of, for instance,
 /usr/lib64 to overwrite the system's version of libjpeg.  If you do this,
 however, then be sure to BACK UP YOUR SYSTEM'S INSTALLATION OF LIBJPEG before
 overwriting it.  It is recommended that you instead install libjpeg-turbo into
 a non-system directory and manipulate the LD_LIBRARY_PATH or create sym links
 to force applications to use libjpeg-turbo instead of libjpeg.  See
 README-turbo.txt for more information.

 =============
 Build Recipes
 =============

 32-bit Library Build on 64-bit Linux
 ------------------------------------

 Add

   --host i686-pc-linux-gnu CFLAGS='-O3 -m32' CXXFLAGS='-O3 -m32'

 to the configure command line.


 64-bit Library Build on 64-bit OS/X
 -----------------------------------

 Add

   --host x86_64-apple-darwin10.0.0 NASM=/opt/local/bin/nasm

 to the configure command line.  NASM 2.07 from MacPorts must be installed.


 32-bit Library Build on 64-bit OS/X
 -----------------------------------

 Add

   CFLAGS='-O3 -m32' CXXFLAGS='-O3 -m32' LDFLAGS=-m32

 to the configure command line.


 32-bit Backward-Compatible Library Build on 64-bit OS/X
 -------------------------------------------------------

 Add

   CFLAGS='-isysroot /Developer/SDKs/MacOSX10.4u.sdk \
     -mmacosx-version-min=10.4 -O3 -m32' \
     CXXFLAGS='-isysroot /Developer/SDKs/MacOSX10.4u.sdk \
     -mmacosx-version-min=10.4 -O3 -m32' \
     LDFLAGS='-isysroot /Developer/SDKs/MacOSX10.4u.sdk \
     -mmacosx-version-min=10.4 -m32'

 to the configure command line.  The OS X 10.4 SDK must be installed.


 64-bit Library Build on 64-bit Solaris
 --------------------------------------

 Add

   --host x86_64-pc-solaris CFLAGS='-O3 -m64' CXXFLAGS='-O3 -m64' LDFLAGS=-m64

 to the configure command line.


 MinGW Build on Cygwin
 ---------------------

 Add

   --host mingw32

 to the configure command line.  This will produce libraries which do not
 depend on cygwin1.dll or other Cygwin DLL's.


 Sun Studio
 ----------

 Add

   CC=cc CXX=CC

 to the configure command line.  libjpeg-turbo will automatically be built with
 the maximum optimization level (-xO5) unless you override CFLAGS and CXXFLAGS.

 To build a 64-bit version of libjpeg-turbo using Sun Studio, add

   --host x86_64-pc-solaris CC=cc CXX=CC CFLAGS='-xO5 -m64' \
     CXXFLAGS='-xO5 -m64' LDFLAGS=-m64

 to the configure command line.


 *******************************************************************************
 **     Building on Windows (Visual C++)
 *******************************************************************************

 ==================
 Build Requirements
 ==================

 -- GNU Make v3.7 or later
    * Can be found in MSYS (http://www.mingw.org/download.shtml) or
      Cygwin (http://www.cygwin.com/)

 -- Windows SDK for Windows Server 2008 and .NET Framework 3.5 (or a later
    version)

    http://msdn.microsoft.com/en-us/windows/dd146047.aspx

    * The Windows SDK includes both 32-bit and 64-bit Visual C++ compilers and
      everything necessary to build libjpeg-turbo.  If you do not already have
      Visual C++ installed, then this is the recommended solution.  Also tested
      with Microsoft Visual C++ 2008 Express Edition (both are free downloads.)
    * Add the compiler and SDK binary directories (for instance,
      c:\Program Files\Microsoft Visual Studio 9.0\VC\BIN;
      c:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE;
      c:\Program Files\Microsoft SDKs\Windows\v6.1\bin)
      to the system or user PATH environment variable prior to building
      libjpeg-turbo.
    * Add the compiler and SDK include directories (for instance,
      c:\Program Files\Microsoft Visual Studio 9.0\VC\INCLUDE;
      c:\Program Files\Microsoft SDKs\Windows\v6.1\include)
      to the system or user INCLUDE environment variable prior to building
      libjpeg-turbo.
    * Add the compiler library directory (for instance,
      c:\Program Files\Microsoft Visual Studio 9.0\VC\LIB;
      c:\Program Files\Microsoft SDKs\Windows\v6.1\lib)
      to the system or user LIB environment variable prior to building
      libjpeg-turbo.

 -- NASM (http://www.nasm.us/) 0.98 or later

 ======================
 Building libjpeg-turbo
 ======================

   cd libjpeg-turbo
   make -f win/Makefile

 This will generate the following files under libjpeg-turbo\windows\:

   jpeg-static.lib        Static link library for libjpeg-turbo
   jpeg62.dll             Shared library for libjpeg-turbo
   jpeg.lib               Development stub for libjpeg-turbo shared library
   turbojpeg-static.lib   Static link library for TurboJPEG/OSS
   turbojpeg.dll          Shared library for TurboJPEG/OSS
   turbojpeg.lib          Development stub for TurboJPEG/OSS shared library

 #If a 64-bit Windows platform is detected, then the build system will attempt
 #to build a 64-bit version of libjpeg-turbo.  You can override this by running
 #
 #  make -f win/Makefile WIN64=no

 NOTE:  For unknown reasons, Win64 support doesn't work yet, so at the moment,
 you have to run 'make -f win/Makefile WIN64=yes' to get a 64-bit build on
 64-bit Windows.  The paragraph above will apply once Win64 support is working.


 *******************************************************************************
 **     Creating Release Packages
 *******************************************************************************

 The following commands can be used to create various types of release packages:

 make rpm

   Create RedHat-style binary RPM package.  Requires RPM v4 or later.

 make srpm

   This runs 'make dist' to create a pristine source tarball, then creates a
   RedHat-style source RPM package from the tarball.  Requires RPM v4 or later.

 make deb

   Create Debian-style binary package.  Requires dpkg.

 make dmg

   Create Macintosh package/disk image.  This requires the PackageMaker
   application, which must be installed in /Developer/Applications/Utilities.

 make udmg

   On 64-bit OS X (10.6 "Snow Leopard" or later), this creates a version of the
   Macintosh package/disk image which contains universal i386/x86-64 binaries.
   The 32-bit fork of these binaries is backward compatible with OS X 10.4 and
   later, whereas the 64-bit fork is compatible with OS X 10.6 and later.  OS X
   10.4 compatibility SDK required.

 make nsi

   When using MinGW, this creates a Win32 installer for the GCC version of the
   libjpeg-turbo SDK.  This requires the Nullsoft Install System
   (http://nsis.sourceforge.net/.)  makensis.exe should be in your PATH.

 make -f win/Makefile dist

   This creates a Win32 installer for the Visual C++ version of the
   libjpeg-turbo SDK.  This requires the Nullsoft Install System
   (http://nsis.sourceforge.net/.)  makensis.exe should be in your PATH.
	*******************************************************************************
	** Building on Unix Platforms, Cygwin, and MinGW
	*******************************************************************************

	==================
	Build Requirements
	==================

	-- autoconf 2.56 or later
	* If using MinGW, this can be obtained by installing the MSYS DTK

	-- automake 1.7 or later
	* If using MinGW, this can be obtained by installing the MSYS DTK

	-- libtool 1.4 or later
	* If using MinGW, this can be obtained by installing the MSYS DTK

	-- NASM
	* 0.98 or later is required for a 32-bit build
	* NASM 2.05 or later is required for a 64-bit build
	* NASM 2.07 or later is required for a 64-bit build on OS/X (10.6 "Snow
	Leopard" or later.) This can be obtained from MacPorts
	(http://www.macports.org/).

	The NASM 2.05 RPMs do not work on older Linux systems, such as Enterprise
	Linux 4. On such systems, you can easily build and install NASM 2.05
	from the source RPM by executing the following as root:

	ARCH=`uname -m`
	wget http://www.nasm.us/pub/nasm/releasebuilds/2.05.01/nasm-2.05.01-1.src.rpm
	rpmbuild --rebuild nasm-2.05.01-1.src.rpm
	rpm -Uvh /usr/src/redhat/RPMS/$ARCH/nasm-2.05.01-1.$ARCH.rpm

	NOTE: NASM build will fail if texinfo is not installed.

	-- GCC v4.1 or later recommended for best performance

	======================
	Building libjpeg-turbo
	======================

	The following procedure will build libjpeg-turbo on Linux, 32-bit OS X, and
	Solaris/x86 systems (on Solaris, this generates a 32-bit library. See below
	for 64-bit build instructions.)

	cd libjpeg-turbo
	autoreconf -fiv
	sh ./configure
	make

	NOTE: Running autoreconf is only necessary if building libjpeg-turbo from the
	SVN repository.

	This will generate the following files under .libs/

	libjpeg.a
	Static link library for libjpeg-turbo

	libjpeg.so.62.0.0 (Linux, Solaris)
	libjpeg.62.dylib (OS X)
	libjpeg-62.dll (MinGW)
	cygjpeg-62.dll (Cygwin)
	Shared library for libjpeg-turbo

	libjpeg.so (Linux, Solaris)
	libjpeg.dylib (OS X)
	libjpeg.dll.a (Cygwin, MinGW)
	Development stub for libjpeg-turbo shared library

	libturbojpeg.a
	Static link library for TurboJPEG/OSS

	libturbojpeg.so (Linux, Solaris)
	libturbojpeg.dylib (OS X)
	Shared library and development stub for TurboJPEG/OSS

	libturbojpeg.dll (MinGW)
	cygturbojpeg.dll (Cygwin)
	Shared library for TurboJPEG/OSS

	libturbojpeg.dll.a (Cygwin, MinGW)
	Development stub for TurboJPEG/OSS shared library

	========================
	Installing libjpeg-turbo
	========================

	If you intend to install these libraries and the associated header files, then
	replace 'make' in the instructions above with

	make install prefix={base dir} libdir={library directory}

	For example,

	make install prefix=/usr/local libdir=/usr/local/lib64

	will install the header files in /usr/local/include and the library files in
	/usr/local/lib64. If 'prefix' and 'libdir' are not specified, then the default
	is to install the header files in /opt/libjpeg-turbo/include and the library
	files in /opt/libjpeg-turbo/lib.

	NOTE: You can specify a prefix of /usr and a libdir of, for instance,
	/usr/lib64 to overwrite the system's version of libjpeg. If you do this,
	however, then be sure to BACK UP YOUR SYSTEM'S INSTALLATION OF LIBJPEG before
	overwriting it. It is recommended that you instead install libjpeg-turbo into
	a non-system directory and manipulate the LD_LIBRARY_PATH or create sym links
	to force applications to use libjpeg-turbo instead of libjpeg. See
	README-turbo.txt for more information.

	=============
	Build Recipes
	=============

	32-bit Library Build on 64-bit Linux
	------------------------------------

	Add

	--host i686-pc-linux-gnu CFLAGS='-O3 -m32' CXXFLAGS='-O3 -m32'

	to the configure command line.


	64-bit Library Build on 64-bit OS/X
	-----------------------------------

	Add

	--host x86_64-apple-darwin10.0.0 NASM=/opt/local/bin/nasm

	to the configure command line. NASM 2.07 from MacPorts must be installed.


	32-bit Library Build on 64-bit OS/X
	-----------------------------------

	Add

	CFLAGS='-O3 -m32' CXXFLAGS='-O3 -m32' LDFLAGS=-m32

	to the configure command line.


	32-bit Backward-Compatible Library Build on 64-bit OS/X
	-------------------------------------------------------

	Add

	CFLAGS='-isysroot /Developer/SDKs/MacOSX10.4u.sdk \
	-mmacosx-version-min=10.4 -O3 -m32' \
	CXXFLAGS='-isysroot /Developer/SDKs/MacOSX10.4u.sdk \
	-mmacosx-version-min=10.4 -O3 -m32' \
	LDFLAGS='-isysroot /Developer/SDKs/MacOSX10.4u.sdk \
	-mmacosx-version-min=10.4 -m32'

	to the configure command line. The OS X 10.4 SDK must be installed.


	64-bit Library Build on 64-bit Solaris
	--------------------------------------

	Add

	--host x86_64-pc-solaris CFLAGS='-O3 -m64' CXXFLAGS='-O3 -m64' LDFLAGS=-m64

	to the configure command line.


	MinGW Build on Cygwin
	---------------------

	Add

	--host mingw32

	to the configure command line. This will produce libraries which do not
	depend on cygwin1.dll or other Cygwin DLL's.


	Sun Studio
	----------

	Add

	CC=cc CXX=CC

	to the configure command line. libjpeg-turbo will automatically be built with
	the maximum optimization level (-xO5) unless you override CFLAGS and CXXFLAGS.

	To build a 64-bit version of libjpeg-turbo using Sun Studio, add

	--host x86_64-pc-solaris CC=cc CXX=CC CFLAGS='-xO5 -m64' \
	CXXFLAGS='-xO5 -m64' LDFLAGS=-m64

	to the configure command line.


	*******************************************************************************
	** Building on Windows (Visual C++)
	*******************************************************************************

	==================
	Build Requirements
	==================

	-- GNU Make v3.7 or later
	* Can be found in MSYS (http://www.mingw.org/download.shtml) or
	Cygwin (http://www.cygwin.com/)

	-- Windows SDK for Windows Server 2008 and .NET Framework 3.5 (or a later
	version)

	http://msdn.microsoft.com/en-us/windows/dd146047.aspx

	* The Windows SDK includes both 32-bit and 64-bit Visual C++ compilers and
	everything necessary to build libjpeg-turbo. If you do not already have
	Visual C++ installed, then this is the recommended solution. Also tested
	with Microsoft Visual C++ 2008 Express Edition (both are free downloads.)
	* Add the compiler and SDK binary directories (for instance,
	c:\Program Files\Microsoft Visual Studio 9.0\VC\BIN;
	c:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE;
	c:\Program Files\Microsoft SDKs\Windows\v6.1\bin)
	to the system or user PATH environment variable prior to building
	libjpeg-turbo.
	* Add the compiler and SDK include directories (for instance,
	c:\Program Files\Microsoft Visual Studio 9.0\VC\INCLUDE;
	c:\Program Files\Microsoft SDKs\Windows\v6.1\include)
	to the system or user INCLUDE environment variable prior to building
	libjpeg-turbo.
	* Add the compiler library directory (for instance,
	c:\Program Files\Microsoft Visual Studio 9.0\VC\LIB;
	c:\Program Files\Microsoft SDKs\Windows\v6.1\lib)
	to the system or user LIB environment variable prior to building
	libjpeg-turbo.

	-- NASM (http://www.nasm.us/) 0.98 or later

	======================
	Building libjpeg-turbo
	======================

	cd libjpeg-turbo
	make -f win/Makefile

	This will generate the following files under libjpeg-turbo\windows\:

	jpeg-static.lib Static link library for libjpeg-turbo
	jpeg62.dll Shared library for libjpeg-turbo
	jpeg.lib Development stub for libjpeg-turbo shared library
	turbojpeg-static.lib Static link library for TurboJPEG/OSS
	turbojpeg.dll Shared library for TurboJPEG/OSS
	turbojpeg.lib Development stub for TurboJPEG/OSS shared library

	#If a 64-bit Windows platform is detected, then the build system will attempt
	#to build a 64-bit version of libjpeg-turbo. You can override this by running
	#
	# make -f win/Makefile WIN64=no

	NOTE: For unknown reasons, Win64 support doesn't work yet, so at the moment,
	you have to run 'make -f win/Makefile WIN64=yes' to get a 64-bit build on
	64-bit Windows. The paragraph above will apply once Win64 support is working.


	*******************************************************************************
	** Creating Release Packages
	*******************************************************************************

	The following commands can be used to create various types of release packages:

	make rpm

	Create RedHat-style binary RPM package. Requires RPM v4 or later.

	make srpm

	This runs 'make dist' to create a pristine source tarball, then creates a
	RedHat-style source RPM package from the tarball. Requires RPM v4 or later.

	make deb

	Create Debian-style binary package. Requires dpkg.

	make dmg

	Create Macintosh package/disk image. This requires the PackageMaker
	application, which must be installed in /Developer/Applications/Utilities.

	make udmg

	On 64-bit OS X (10.6 "Snow Leopard" or later), this creates a version of the
	Macintosh package/disk image which contains universal i386/x86-64 binaries.
	The 32-bit fork of these binaries is backward compatible with OS X 10.4 and
	later, whereas the 64-bit fork is compatible with OS X 10.6 and later. OS X
	10.4 compatibility SDK required.

	make nsi

	When using MinGW, this creates a Win32 installer for the GCC version of the
	libjpeg-turbo SDK. This requires the Nullsoft Install System
	(http://nsis.sourceforge.net/.) makensis.exe should be in your PATH.

	make -f win/Makefile dist

	This creates a Win32 installer for the Visual C++ version of the
	libjpeg-turbo SDK. This requires the Nullsoft Install System
	(http://nsis.sourceforge.net/.) makensis.exe should be in your PATH.