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+Installation Instructions
+*************************
+
+1. Quick install:
+=================
+
+$ ./autogen.sh # only if you just cloned the git repository
+$ ./configure
+$ make
+$ make install
+
+
+2. Step by step install on Linux >=2.6, with udev:
+==================================================
+
+2.1. Install with your preferred package manager:
+ (a) the development environment for your Linux distibution
+ - mandatory: gcc, make, kernel header files, autoconf, autoconf-archive
+ - optional: git
+ (b) missing development packages
+ - libusb-dev or libusb-devel or libusb-compat-devel
+ - libusb-1.0.0-dev or similar
+ - libjpeg-dev or libjpeg8-dev or libjpeg-turbo-devel or turbojpeg-devel
+ - libpng-dev or similar
+ - libcurl4-gnutls-dev or similar
+ - libxml2-dev or similar
+
+2.2. Get the latest SANE backend from git:
+ You can download "daily git snapshot" from here:
+
+ http://www.sane-project.org/snapshots/
+
+ If you prefer to use git, you can fetch a read-only copy of the git tree
+ with this command:
+
+ $ git clone https://gitlab.com/sane-project/backends.git
+
+ If you already are using a self compiled SANE backend and just fetched a
+ new copy of the git tree or if you patched some source files, there is no
+ need to follow the installation procedure again. You only need to make and
+ install libsane:
+
+ $ make && sudo make install
+
+2.3. Configure, make and install latest SANE backend:
+ We install a new SANE dynamically linked shared object library in
+ /usr/local/lib beside your system's SANE library.
+
+ $ ./autogen.sh # only if you just cloned the git repository
+ $ ./configure
+ $ make && sudo make install
+
+ If you want to change some settings for your SANE installation, please
+ read the documentation on the website, the man pages and:
+
+ $ ./configure --help
+
+ Maybe you don't want to compile all scanners on your system, then you can
+ select the backends you need, e.g. epson2 and fujitsu:
+
+ $ ./configure BACKENDS="epson2 fujitsu"
+
+ You can search for your scanners backend names here:
+
+ http://sane-project.org/lists/sane-backends-cvs.html
+
+2.3.1. SANE library:
+ Register new installed SANE dynamically linked shared object library.
+
+ $ sudo ldconfig -v | grep libsane
+ libsane.so.1 -> libsane.so.1.0.25
+ libsane.so.1 -> libsane.so.1.0.23
+
+ This example shows that the system first find version 1.0.25 and then
+ 1.0.23. This is the correct order.
+
+ If your system first find the old version and then the new installed one,
+ then you must change the order for library paths in /etc/ld.so.conf or you
+ must create the new configuration file /etc/ld.so.conf.d/1-sane.conf.
+
+ $ echo "/usr/local/lib" | sudo tee -a /etc/ld.so.conf.d/1-sane.conf
+
+ Then you must repeat this step.
+
+2.3.2. Localization file:
+
+ $ cd /usr/share/locale/<language>/LC_MESSAGES
+ $ sudo ln -sf /usr/local/share/locale/<language>/LC_MESSAGES/sane-backends.mo .
+ $ cd -
+
+2.3.3. udev rules file:
+
+ $ sudo cp tools/udev/libsane.rules /etc/udev/rules.d
+
+ Reconnect your scanner to the USB bus to activate the new rules file.
+
+2.3.4. Use the scanner with normal user rights:
+
+ Your user must be a member of the group scanner.
+
+ $ cat /etc/group | grep scanner
+ scanner:x:107:<user>
+
+ Create a new group scanner, if it doesn't exist.
+
+ $ sudo addgroup scanner
+
+ Add an existing user to group scanner.
+
+ $ sudo adduser <username> scanner
+
+ After this you must logoff and login again.
+
+2.4. Test your scanner:
+
+2.4.1. Check the used backend version:
+
+ The programs must use the installed SANE backend version, e.g. 1.0.25.
+
+ $ scanimage -V
+ scanimage (sane-backends) 1.0.25git; backend version 1.0.25
+
+ This example shows that backend and scanimage are version 1.0.25.
+
+ $ /usr/bin/scanimage -V
+ scanimage (sane-backends) 1.0.23; backend version 1.0.25
+
+ This example shows that an old scanimage (1.0.23) uses the backend 1.0.25.
+
+ If you want to use xsane, start xsane and check the used version with
+ CTRL - i.
+
+2.4.2. Access scanner with normal user rights:
+
+ $ scanimage -L
+
+ If your scanner isn't recognised here, try this:
+
+ $ sudo scanimage -L
+
+ If this works, your user doesn't have the rights to access the scanner.
+
+ However, please check and redo the installation described above.
+ If this doesn't help, you can ask the mailing list
+ <sane-devel@alioth-lists.debian.net> for further support.
+
+2.4.3. Testscan:
+
+ $ cd ~
+ $ scanimage > test.pnm
+
+
+3. Advanced Installation Information
+====================================
+
+ Please read the documents INSTALL, README and README.linux.