crosstool-ng: config/companion_tools.in@364b06df9e3a

glibc: Refactor startfiles/headers into do_libc_backend()

Refactor the contents of 'do_libc_start_files()' and 'do_libc()' into a
parameterized 'do_libc_backend()'. 'do_libc_start_files()' and 'do_libc()'
call 'do_libc_backend()' with either 'libc_mode=startfiles' or
'libc_mode=final' (respectively) so that the startfiles/headers and
the final libc builds are configured and built with the same options.

One example of where this is needed is when building a mips toolchain.
Previously, if you were building an n32 toolchain, you wouldn't have
noticed an issue, because if '-mabi' is not in CFLAGS, n32 is the
default:

http://sourceware.org/git/?p=glibc-ports.git;a=blob;f=sysdeps/mips/preconfigure;hb=HEAD

But when trying to build an o32 or n64 toolchain the build would
have failed. This is because (e)glibc expects "-mabi={o32,n32,n64}" to be
in CFLAGS, but was not previously provided in 'do_libc_start_files()'.
The build failure would happen in the shared-core gcc when it tries to
configure an n64 or o32 gcc with an n32 libc.

A simpler solution would have been to just add TARGET_CFLAGS to configure
in 'do_libc_start_files()', but this way makes configure and make
consistent for both steps.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

     1 # Companion tools config options

     3 if EXPERIMENTAL

     5 menu "Companion tools"

     7 comment "READ HELP before you say 'Y' below !!!"

     8 config COMP_TOOLS

     9     bool

    10     prompt "Build some companion tools"

    11     help

    12       Crosstool-NG relies on some external tools to be recent enough, namely:

    13         make = 3.81 (in some cases)

    14         m4 >= 1.4.12

    15         autoconf >= 2.63

    16         automake >= 1.10.2

    17         libtool >= 2.2.4

    19       If your system has older versions, we can build them for you,

    20       but you are strongly encouraged to update your system instead!

    22 if COMP_TOOLS

    24 config COMP_TOOLS_make

    25     bool

    26     prompt "make"

    28 config COMP_TOOLS_m4

    29     bool

    30     prompt "m4"

    32 config COMP_TOOLS_autoconf

    33     bool

    34     prompt "autoconf"

    36 config COMP_TOOLS_automake

    37     bool

    38     prompt "automake"

    40 config COMP_TOOLS_libtool

    41     bool

    42     prompt "libtool"

    44 endif

    46 endmenu

    48 endif

author	Bryan Hundven <bryanhundven@gmail.com>
	Sun Jun 26 03:26:54 2011 -0700 (2011-06-26)
changeset 2515	364b06df9e3a
parent 1730	c43d16b6b950
child 3291	ccef9a13c09b
permissions	-rw-r--r--