config/kernel/bare-metal.in
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Thu Jul 28 22:09:31 2011 +0200 (2011-07-28)
changeset 2573 424fa2092ace
parent 1030 e5bf882d6514
permissions -rw-r--r--
scripts/libc: do not build add-ons by default

Currently, no --enable-add-ons option is passed to libc configure when
"$(do_libc_add_ons_list ,)" is empty, which makes configure automatically search
for present add-ons. In that case, all present add-ons are built, although
no add-on was selected by the user in the config. Moreover, this can make the
configure fail if some non-standard add-ons like eglibc-localedef are present.

This behavior also leads to an inconsistency from a user point of view between
the following cases:
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS="none" in the config,
which makes "$(do_libc_add_ons_list ,)" return "", so all present add-ons
are built.
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS!="none" in the
config, which makes "$(do_libc_add_ons_list ,)" return the add-on supporting
the chosen threading implementation, e.g. "nptl", so only this add-on is
built.

This patch disables the building of all add-ons in that case.

It is still possible to build all present add-ons by adding --enable-add-ons to
LIBC_GLIBC_EXTRA_CONFIG_ARRAY.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
     1 # Bare metal config options
     2 
     3 ## select BARE_METAL
     4 ##
     5 ## help 'Bare metal' refers to those programs that run without any kernel.
     6 ## help
     7 ## help You probably want to say 'y' here if you plan to use your compiler
     8 ## help to build bootloaders. It is not yet suitable to build Linux kernels,
     9 ## help though, because the APCI stuff relies on the target C library headers
    10 ## help being available?!?!...