Building toolchain for 2.4.x target

[Filipe Felisbino <filipenf at gmail dot com>]

Hello.

I'm using crosstool-ng(1.9.3) to create a toolchain that will target a
x86 2.4 kernel with a 2.3.2 glibc ( to build a legacy service ).

Here are some of the options in my .config:

CT_CC_VERSION="4.2.4"
CT_LIBC_VERSION="2.3.2"
CT_LIBC_glibc=y
CT_KERNEL_LINUX_CUSTOM_TARBALL="/home/.../Downloads/linux-2.4.22.tar.bz2"
CT_LIBC_GLIBC_MIN_KERNEL_VERSION="2.4.2"


Here is the output...

[ERROR]    configure: error: GNU libc requires kernel header files from
[CFG  ]    Linux 2.0.10 or later to be installed before configuring.
[CFG  ]    The kernel header files are found usually in /usr/include/asm and
[CFG  ]    /usr/include/linux; make sure these directories use files from
[CFG  ]    Linux 2.0.10 or later.  This check uses <linux/version.h>, so
[CFG  ]    make sure that file was built correctly when installing the
kernel header
[CFG  ]    files.  To use kernel headers not from /usr/include/linux, use the
[CFG  ]    configure option --with-headers.

I found out that there was no version.h in the linux includes
(~/x-tools/i686-nptl-linux-gnu/i686-nptl-linux-gnu/sys-root/usr/include/version.h)
so I copied it from my /usr/include/linux/version.h and changed it to
fit:
#define LINUX_VERSION_CODE 132098
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))

the version code 132098 is equivalent to 2.4.2, but when I tried to
build it I got the same error. Then I noticed that the file wasn't
there anymore. What is the correct way to provide the version.h file
to the glibc's build?

Thank you

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