CDA SC510 Podręcznik Użytkownika Pobierz pdf (Strona 35)

D2.1.4 IST-033576

We strongly recommend that you conﬁgure and build BLCR in a directory

other than the one containing the BLCR source code (use of some options to con-

ﬁgure actually require this). In the example above the build is conducted in a sub-

directory, named builddir, of the source directory. Any writable location is ﬁne,

but you will need to invoke conﬁgure by the correct path in place of ../conﬁgure

used in the example.

Check the FAQ if you run into issues building BLCR on your system.

A.1.2 Choosing an installation directory

By default BLCR will install into /usr/local. To choose a different directory tree

to install into, pass the –preﬁx ﬂag to conﬁgure:

• –preﬁx=[the directory you wish to install into]

However, be aware that using a location other than /usr/local or /usr may re-

quire additions to the PATH, MANPATH and LD_LIBRARY_PATH environment

variables of users (more details below).

A.1.3 Building against a kernel other than the one that’s running

By default, BLCR builds against the kernel that is running on the system at con-

ﬁgure time, and looks in a number of standard locations (/usr/src/linux, etc.) for

the above ﬁles that correspond to it. If you’re building for a kernel other than

the kernel that is running at the time of the build (or if the source for the running

kernel are in non-standard locations), you’ll need to pass conﬁgure the following

option:

• –with-linux=[path to the sources for the kernel you are building for]

Unless System.map or vmlinux exists in the directory given to –with-linux

you’ll also need to pass one of the following two options:

• –with-system-map=[path to the System.map ﬁle] (usually /boot/System.map,

or the System.map ﬁle in the root of the kernel build tree)

• –with-vmlinux=[path to the kernel executable] (usually /boot/vmlinux, or

the vmlinux ﬁle at the root of the kernel build tree)

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CDA SC510 Podręcznik Użytkownika Strona 35