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AF's utilities library
======================
The utilities library, that is used in afbackup and soon other
packages, can be installed as described in the following sections.
It contains header files, a library and two utility scripts for
determining the operating system version, if necessary.
The header files are operating system independant, except for
one, that will be placed in a subdirectory named like the
output of the utility script prosname.sh . When using the
library, make sure to insert this subdirectory before the
directory itself into the include path
(e.g. -I/usr/local/include/Linux_2 -I/usr/local/include)
For experienced people, to build and install in most cases
the following three usual steps are necessary
./configure -prefix=/desired/install/prefix
make x_utils
make install.x_utils
Detailed build and install instructions follow.
See below for possible known problems.
BUILD
=====
To build the library, it is necessary to run ./configure , like
with all other software using autoconf. The following configure
options can be supplied:
-prefix=DIR (default: DIR=/usr/local)
The base directory for the headers, library and scripts.
The subdirectories bin, lib and include will be created,
if not yet existing.
--with-utilsincdir (default: prefix/include)
The directory for the header files. A subdirectory named
like the output of the script prosname.sh will also be
created containing the only OS-dependant header file.
--with-utilslibdir (default: prefix/lib)
The directory, that will contain the library, who is of
course OS-dependant. Therefore a subdirectory named like
the output of prosname.sh will be created and really
contain the library.
--with-utilsbindir (default: prefix/bin)
The directory, that will contain utility scripts. If there
will be any OS-dependant binaries, too, they will be located
in a subdirectory
--with-des (default: no)
Whether DES-encryption will be built in for the client-
server authentication routines. Requires Eric Young's
libdes-4.04b or higher. Selecting one or more of the
following --with-des-... options automatically selects
--with-des
--with-des-header=HEADER (default: HEADER=des.h)
The (base-)name of the DES-Header file (without path)
--with-des-include=INC (default: INC=../libdes)
The directory, where to find the DES-Header file
--with-zlib (default: no)
Whether to build in compression capabilities for the
packer or more general file compression functions.
Selecting one or more of the following --with-zlib-...
options automatically selects --with-zlib
--with-zlib-include=INC (default: INC=/usr/local/include)
The directory, where to find the zlib header zlib.h
After having run configure type:
make x_utils
INSTALL
=======
To install the library, headers and scripts type
make install.x_utils
When building packages, that need these utilities, follow
the instructions coming with the package.
CAVEATS
=======
Changes in the encryption routines were necessary due to a bug
in all libdes versions. Thus progrmams linked with this library
are behaving differently now, what might break compatibility
with earlier versions of the same program.
Nonetheless it is possible to build the library using the buggy
function, so backward compatibility for existing installations
is provided. If the buggy function should be used, the following
line must be appended to the file des_aux.h after the configure
step:
#define LIBDESBUG_COMPATIBILITY 1
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