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INSTALL
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INSTALL
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/*
* libZRTP SDK library, implements the ZRTP secure VoIP protocol.
* Copyright (c) 2006-2009 Philip R. Zimmermann. All rights reserved.
* Contact: http://philzimmermann.com
* For licensing and other legal details, see the file zrtp_legal.c.
*
* Viktor Krykun <v.krikun at zfoneproject.com>
*/
Basic Installation
================================================================================
To start playing with Zfone and libzrtp you should install few developers
packages on your machine: gcc and g++ compilers, automake and autoconf tools.
To install library as a Zfone component for Linux the following flags
should be used: BUILD_DEBUG_LOG, BUILD_WITH_CFUNC, BUILD_DEFAULT_CACHE,
BUILD_DEFAULT_TIMER and WITH_ZFONE.
The following instructions are for experienced users and developers only.
If you just want to install Zfone use the command as follows:
./configure CFLAGS="-O0 -g3 -W -Wall -DBUILD_DEBUG_LOG -DBUILD_WITH_CFUNC
-DBUILD_DEFAULT_CACHE -DBUILD_DEFAULT_TIMER -DWITH_ZFONE"
Library distribution contains installation and configuration files, project files
for several Operation Systems. To install Library on Unix-like systems the
autotools tool set is used. To install on Windows - Microsoft Visual Studio.
Except standard for your system compile flags the following are available for
your system:
-# -DBUILD_DEBUG_LOG - enables debug and logging information
This flag is recommended to be used at design stages for testing. Logs make
debug process much easier and are to be included into bugreport.
-# -DBUILD_WITH_CFUNC - assign to the library to gather standard for this
platform system interface functions realizations. This option simplifies the
library use and make code more compact. You can have a look at realizations
in src/zrtp-iface.c. file. And if they suit you use this flag.
-# -DBUILD_EMPTY_CACHE this flag assigns to the library to use empty stubs
instead of operations with cache. This checkbox may be used in test
applications or in systems where cache secrets storing is impossible. Be
careful with this flag! Use it if it is really necessary.
-# -DBUILD_EMPTY_TIMER this flag assigns to the library to use empty stubs
instead of delayed tasks processing. This checkbox may be used in test
applications or in systems with the reliable communication channel (the
package loss is impossible). Be careful with this flag! Use it if it is
really necessary.
Except library itself, the set of utilities for the all components workability
check on the basis of a certain platform is provided. libzrtp test creates
several parallel ZRTP sessions, initiates transfer to the protected mode,
displays statistics, after which the application is stopped. If application test
was completed successfully the library is configured correctly, all components
work correctly. Note! Installation of test application is carried out with
-DBUILD_EMPTY_CACHE -DBUILD_EMPTY_TIMER flags. After fulfilling tests reinstall
library without use of these flags.
Further instructions must be followed in order to build and set up the library in
any Unix-like operation system (Linux, FreeBSD, MacOS):
-# Download source codes from zfoneproject.com
-# Decompress the archive libzrtp-0.3.X.tzr.gz : tar -zxf ./libzrtp-0.3.X.tzr.gz
and open cd libzrtp-0.3.X directory
-# Configure the library: ./configure (use necessary compollation flags)
-# Build the library: make
-# If you get the errors during, please send a full log of configuration
and building process to zfone-bugs@philzimmermann.com. Please specify
the operation system, hardware platform, compiler version and other
environmental parameters. Any proposals will be taken into account when
developing new versions.
-# After te library successful building, run setup (installation): ./make install
-# to build test unites run ./configure with CFLAGS="-DBUILD_DEBUG_LOG
-DBUILD_WITH_CFUNC -DBUILD_EMPTY_CACHE -DBUILD_EMPTY_TIMER and parameter
--enable-test. After successful configuration start test: "make check".
This command will build and run all test (bnlib test, srtp tests and
libzrtp tests) Don't forget to rebuild library without -DBUILD_EMPTY_CACHE
-DBUILD_EMPTY_TIMER.
For library configuration and installation on Windows platform the followinf
files should be used:
-# For installation with the Microsoft Visual Studio v6 use:
- libzrtp.dsw
- libzrtp.dsp
- test\libzrtp_test.dsp
-# For installation with the Microsoft Visual Studio v7 use:
- libzrtp.sln
- libzrtp.vcproj
- test\libzrtp_test.vcproj
-# If you want to build libzrtp in Windows kernel mode you mast use MAKEFILE.WIN32
For 32-bit machines bnlib contains assemble file lbn80386.asm. The assembler is
needed to install it. The compiler ml is in the stracture of VS7, if you use VS6
you can use Microsoft Macro Assembler (http://www.masm32.com/masmdl.htm). To
compile this file you have define in properties: <c>Commands: <dir>\ml /c /Cx
/coff /Fo $(TargetDir)\$(InputName).obj $(InputPath) Outputs: $(TargetDir)\$(InputName).obj
</c> where <dir> is a complete path to the compiler.
Possible problems and methods of the solution:
-# Some environment problems with automatic definition of architecture
and byte-order are possible at library building. We recommend before building
of libZRTP on a new program or hardware platform uncomment the test-unite at
the end of the file \c zrtp_syste.h. If there is a mistakes in definition of
architecture or byte-order use zrtp_system.h manual configuration following
the comments.
Please take into account the fact that libzrtp developers are not responsible for
external modules of the library. In other words, the functionality of the library
was tested under majority of widespread Linux and Windows systems, but warnings
can still occur during these modules compilation.
If you have faced with some problems during configuration or installing of the
library - send a report to the Support Service. If you installed library on the
platform not described here, please contact the Support Service. We are
interested very much to get know the results of testing on new platforms. We
will carefully examine all proposals and will do our best to realize them in new
library versions.
Compilers and Options
=================
Some systems require unusual options for compilation or linking that
the `configure' script does not know about. You can give `configure'
initial values for variables by setting them in the environment. Using
a Bourne-compatible shell, you can do that on the command line like
this:
CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
Or on systems that have the `env' program, you can do it like this:
env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
Compiling For Multiple Architectures
=================
You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory. To do this, you must use a version of `make' that
supports the `VPATH' variable, such as GNU `make'. `cd' to the
directory where you want the object files and executables to go and run
the `configure' script. `configure' automatically checks for the
source code in the directory that `configure' is in and in `..'.
If you have to use a `make' that does not supports the `VPATH'
variable, you have to compile the package for one architecture at a time
in the source code directory. After you have installed the package for
one architecture, use `make distclean' before reconfiguring for another
architecture.
Installation Names
==================
By default, `make install' will install the package's files in
`/usr/local/include', `/usr/local/lib', etc. You can specify an
installation prefix other than `/usr/local' by giving `configure' the
option `--prefix=PATH'.
You can specify separate installation prefixes for
architecture-specific files and architecture-independent files. If you
give `configure' the option `--exec-prefix=PATH', the package will use
PATH as the prefix for installing programs and libraries.
Documentation and other data files will still use the regular prefix.
If the package supports it, you can cause programs to be installed
with an extra prefix or suffix on their names by giving `configure' the
option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
Optional Features
=================
Some packages pay attention to `--enable-FEATURE' options to
`configure', where FEATURE indicates an optional part of the package.
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
is something like `gnu-as' or `x' (for the X Window System). The
`README' should mention any `--enable-' and `--with-' options that the
package recognizes.
For packages that use the X Window System, `configure' can usually
find the X include and library files automatically, but if it doesn't,
you can use the `configure' options `--x-includes=DIR' and
`--x-libraries=DIR' to specify their locations.
Specifying the System Type
==========================
There may be some features `configure' can not figure out
automatically, but needs to determine by the type of host the package
will run on. Usually `configure' can figure that out, but if it prints
a message saying it can not guess the host type, give it the
`--host=TYPE' option. TYPE can either be a short name for the system
type, such as `sun4', or a canonical name with three fields:
CPU-COMPANY-SYSTEM
See the file `config.sub' for the possible values of each field. If
`config.sub' isn't included in this package, then this package doesn't
need to know the host type.
If you are building compiler tools for cross-compiling, you can also
use the `--target=TYPE' option to select the type of system they will
produce code for and the `--build=TYPE' option to select the type of
system on which you are compiling the package.
Sharing Defaults
================
If you want to set default values for `configure' scripts to share,
you can create a site shell script called `config.site' that gives
default values for variables like `CC', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists. Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.
Defining Variables
==================
Variables not defined in a site shell script can be set in the
environment passed to `configure'. However, some packages may run
configure again during the build, and the customized values of these
variables may be lost. In order to avoid this problem, you should set
them in the `configure' command line, using `VAR=value'. For example:
./configure CC=/usr/local2/bin/gcc
will cause the specified gcc to be used as the C compiler (unless it is
overridden in the site shell script).
Operation Controls
==================
`configure' recognizes the following options to control how it
operates.
`--version'
`-V'
Print the version of Autoconf used to generate the `configure'
script, and exit.
`--cache-file=FILE'
Use and save the results of the tests in FILE instead of
`./config.cache'. Set FILE to `/dev/null' to disable caching, for
debugging `configure'.
`--help'
Print a summary of the options to `configure', and exit.
`--quiet'
`--silent'
`-q'
Do not print messages saying which checks are being made.
`--srcdir=DIR'
Look for the package's source code in directory DIR. Usually
`configure' can determine that directory automatically.
`--version'
Print the version of Autoconf used to generate the `configure'
script, and exit.
`configure' also accepts some other, not widely useful, options.