Building the support libraries

ES operating system uses many open source libraries for 2D graphics, regular expression support, etc. You need to build these libraries for cross development in the following order before building ES operating system.

In the following steps, we will set up the ES cross libraries in '/opt/es'. If you need to set up them in the other place, please modify the --prefix and other options accordingly.

PCRE

The Perl Compatible Regular Expressions (PCRE) library is used for the regular expression support.

$ cd src
$ wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-7.8.tar.bz2
$ tar -jxvf pcre-7.8.tar.bz2
$ patch -p0 -d . < ../trunk/patches/pcre-7.8.patch
$ cd ../opt
$ mkdir pcre
$ cd pcre
$ ../../src/pcre-7.8/configure --prefix=/opt/es --disable-shared --enable-utf8 --enable-unicode-properties --host=i386-pc-es --target=i386-pc-es
$ make
$ make install

FreeType 2

!FreeType 2 is used as a software font engine. Please download freetype-2.3.5.tar.bz2 from http://sourceforge.net/project/showfiles.php?group_id=3157 into your src directory to install.

$ cd ../../src/

$ tar -jxvf freetype-2.3.5.tar.bz2
$ patch -p0 -d . < ../trunk/patches/freetype-2.3.5.patch
$ cd ../opt
$ mkdir freetype
$ cd freetype
$ ../../src/freetype-2.3.5/configure --prefix=/opt/es --host=i386-pc-es --target=i386-pc-es
$ make FTSYS_SRC=../../src/freetype-2.3.5/builds/unix/ftsystem.c
$ make install

Expat

The Expat XML Parser is used as an XML parser for fontconfig, which is installed next. Please download expat-2.0.1.tar.gz from http://sourceforge.net/project/showfiles.php?group_id=10127&package_id=10780&release_id=513851 into your src directory to install.

$ cd ../../src/

$ tar -zxvf expat-2.0.1.tar.gz
$ patch -p0 -d . < ../trunk/patches/expat-2.0.1.patch
$ cd ../opt
$ mkdir expat
$ cd expat
$ ../../src/expat-2.0.1/configure --prefix=/opt/es --host=i386-pc-es --target=i386-pc-es
$ make
$ make installlib

Fontconfig

Fontconfig is used for font customization and configuration for cairo, which is installed next.

$ cd ../../src/
$ wget http://fontconfig.org/release/fontconfig-2.4.2.tar.gz
$ tar -zxvf fontconfig-2.4.2.tar.gz
$ patch -p0 -d . < ../trunk/patches/fontconfig-2.4.2.patch
$ cd ../opt
$ mkdir fontconfig
$ cd fontconfig
$ ../../src/fontconfig-2.4.2/configure --prefix=/opt/es --host=i386-pc-es --target=i386-pc-es --with-arch=i386-pc-es --with-expat-includes=/opt/es/include --with-expat-lib=/opt/es/lib --with-freetype-config=/opt/es/bin/freetype-config --with-default-fonts=/file/fonts --with-cache-dir=/file --with-confdir=/file
$ make
$ make install

Note in the above configure command, the following three options specify the path to the directory in the target PC that runs the ES operating system:

Cairo

Cairo is used for the 2D graphics.

$ cd ../../src/
$ wget http://cairographics.org/releases/cairo-1.4.10.tar.gz
$ tar -zxvf cairo-1.4.10.tar.gz
$ patch -p0 -d . < ../trunk/patches/cairo-1.4.10.patch
$ cd ../opt
$ mkdir cairo
$ cd cairo
$ ../../src/cairo-1.4.10/configure --prefix=/opt/es --host=i386-pc-es --target=i386-pc-es --disable-png --disable-xlib --disable-ps --disable-svg FREETYPE_CFLAGS='-I/opt/es/include/freetype2 -I/opt/es/include' FREETYPE_LIBS='-L/opt/es/lib -lfreetype' FONTCONFIG_CFLAGS=-I/opt/es/include FONTCONFIG_LIBS='-L/opt/es/lib -lfontconfig'
$ make
$ make install
cd ../..

Your support libraries now set up!

Please move on to build ES operating system.