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Ok, I'm new to linux, and I've seen that there are some apps where you have to compile them to install them. How does this work? I'm on Red Hat ...
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  1. #1
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    How do you compile programs? (newbie)


    Ok, I'm new to linux, and I've seen that there are some apps where you have to compile them to install them. How does this work? I'm on Red Hat 9 right now.

    Thanks.

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    Usually the best thing to do is read the installation instructions for which ever application you are going to install. Do you have any specific examples?

    If you using RH9 the most common way is to download the RPM's and then use RPM command to install.

    For installing stuff with make command suggest following instructions from website. But if you do have something in mind post the name of the application and might be able to help further.

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    Usually it is

    Code:
    ./configure
    make
    make test
    make install
    But read the README or INSTALL file included by the software first.
    Regards

    Andutt

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    Well this is what the install file says:

    Code:
     Basic Installation
    ==================
    
       These are generic installation instructions.
    
       The `configure' shell script attempts to guess correct values for
    various system-dependent variables used during compilation.  It uses
    those values to create a `Makefile' in each directory of the package.
    It may also create one or more `.h' files containing system-dependent
    definitions.  Finally, it creates a shell script `config.status' that
    you can run in the future to recreate the current configuration, a file
    `config.cache' that saves the results of its tests to speed up
    reconfiguring, and a file `config.log' containing compiler output
    (useful mainly for debugging `configure').
    
       If you need to do unusual things to compile the package, please try
    to figure out how `configure' could check whether to do them, and mail
    diffs or instructions to the address given in the `README' so they can
    be considered for the next release.  If at some point `config.cache'
    contains results you don't want to keep, you may remove or edit it.
    
       The file `configure.in' is used to create `configure' by a program
    called `autoconf'.  You only need `configure.in' if you want to change
    it or regenerate `configure' using a newer version of `autoconf'.
    
    The simplest way to compile this package is:
    
      1. `cd' to the directory containing the package's source code and type
         `./configure' to configure the package for your system.  If you're
         using `csh' on an old version of System V, you might need to type
    
         `sh ./configure' instead to prevent `csh' from trying to execute
         `configure' itself.
    
         Running `configure' takes awhile.  While running, it prints some
         messages telling which features it is checking for.
    
      2. Type `make' to compile the package.
    
      3. Optionally, type `make check' to run any self-tests that come with
         the package.
    
      4. Type `make install' to install the programs and any data files and
         documentation.
    
      5. You can remove the program binaries and object files from the
         source code directory by typing `make clean'.  To also remove the
         files that `configure' created (so you can compile the package for
         a different kind of computer), type `make distclean'.  There is
         also a `make maintainer-clean' target, but that is intended mainly
         for the package's developers.  If you use it, you may have to get
         all sorts of other programs in order to regenerate files that came
         with the distribution.
    
    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/bin', `/usr/local/man', 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.
    
       In addition, if you use an unusual directory layout you can give
    options like `--bindir=PATH' to specify different values for particular
    kinds of files.  Run `configure --help' for a list of the directories
    you can set and what kinds of files go in them.
    
       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.
    Operation Controls
    ==================
    
       `configure' recognizes the following options to control how it
    operates.
    
    `--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.  To
         suppress all normal output, redirect it to `/dev/null' (any error
         messages will still be shown).
    
    `--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.

    Yea, I know it's kind of long. Sorry [/code][/list][/quote]

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