[Buildroot] [Bug 4892] build fails on ltp-testsuite-20101031/testcases/kernel/fs/ftest/ftest04.c:146: undefined reference to `sigset'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=4892

Thomas Petazzoni <thomas.petazzoni at free-electrons.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX

--- Comment #1 from Thomas Petazzoni <thomas.petazzoni at free-electrons.com> 2012-03-08 08:24:59 UTC ---
Thanks for your bug report.

The help text of the ltp-testsuite package says:

"""
          The LTP testsuite uses several functions that are considered
          obsolete, such as sigset() and others. Therefore, the LTP
          testsuite does not build with Buildroot's default uClibc
          configuration, and options such as
          UCLIBC_HAS_OBSOLETE_BSD_SIGNAL are needed.
"""

So, it is well-known that ltp-testsuite doesn't build with our default uClibc
configuration. You must add the uCLIBC_HAS_OBSOLETE_BSD_SIGNAL option to it. So
you should do:

make clean
make uclibc-menuconfig
# add the UCLIBC_HAS_OBSOLETE_BSD_SIGNAL option
make

and then it should work.

A good improvement would be to adapt ltp-testsuite so that if sigset() isn't
available, it doesn't try to use it.

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