[Pkg-uml-pkgs] Bug#701444: user-mode-linux: ftbfs with eglibc-2.17

[Matthias Klose]

Package: src:user-mode-linux
Version: 3.2-2um-1
Severity: important
Tags: sid jessie
User: debian-glibc at lists.debian.org
Usertags: ftbfs-glibc-2.17

The package fails to build in a test rebuild on at least amd64 with
eglibc-2.17, but succeeds to build with eglibc-2.13. The
severity of this report may be raised before the jessie release.

The test rebuild was done together with GCC-4.8, so some issues
might be caused by the updated GCC as well.

  arch/um/os-Linux/start_up.c:338:16: error: storage size of 'lim' isn't known

The full build log can be found at:
http://people.debian.org/~doko/logs-20130217/gcc48/user-mode-linux_3.2-2um-1_unstable_gcc48.log
The last lines of the build log are at the end of this report.

To install eglibc from experimental,

  apt-get -t experimental install libc6-dev

To build with GCC 4.8, either set CC=gcc-4.8 CXX=g++-4.8 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t experimental install g++ g++-4.7 g++-4.8 libc6-dev


[...]
  LD      arch/um/drivers/mconsole.o
  CC      arch/um/drivers/mmapper_kern.o
  LD      arch/um/drivers/ubd.o
  CC      arch/um/drivers/null.o
  LD      arch/um/drivers/port.o
  CC      arch/um/drivers/pty.o
  CC      arch/um/drivers/tty.o
  CC      arch/um/drivers/xterm.o
  CC      arch/um/drivers/xterm_kern.o
  LD      arch/um/drivers/harddog.o
  CC      arch/um/drivers/cow_user.o
  CC      arch/um/drivers/random.o
  LD      arch/um/drivers/built-in.o
  CC [M]  arch/um/drivers/hostaudio_kern.o
  LD [M]  arch/um/drivers/hostaudio.o
  CC      arch/um/os-Linux/aio.o
  CC      arch/um/os-Linux/execvp.o
  CC      arch/um/os-Linux/file.o
  CC      arch/um/os-Linux/helper.o
  CC      arch/um/os-Linux/irq.o
  CC      arch/um/os-Linux/main.o
  CC      arch/um/os-Linux/mem.o
  CC      arch/um/os-Linux/process.o
  CC      arch/um/os-Linux/registers.o
  CC      arch/um/os-Linux/sigio.o
  CC      arch/um/os-Linux/signal.o
  CC      arch/um/os-Linux/start_up.o
arch/um/os-Linux/start_up.c: In function 'check_coredump_limit':
arch/um/os-Linux/start_up.c:338:16: error: storage size of 'lim' isn't known
  struct rlimit lim;
                ^
arch/um/os-Linux/start_up.c:339:2: error: implicit declaration of function 'getrlimit' [-Werror=implicit-function-declaration]
  int err = getrlimit(RLIMIT_CORE, &lim);
  ^
arch/um/os-Linux/start_up.c:339:22: error: 'RLIMIT_CORE' undeclared (first use in this function)
  int err = getrlimit(RLIMIT_CORE, &lim);
                      ^
arch/um/os-Linux/start_up.c:339:22: note: each undeclared identifier is reported only once for each function it appears in
arch/um/os-Linux/start_up.c:347:22: error: 'RLIM_INFINITY' undeclared (first use in this function)
  if (lim.rlim_cur == RLIM_INFINITY)
                      ^
arch/um/os-Linux/start_up.c:338:16: warning: unused variable 'lim' [-Wunused-variable]
  struct rlimit lim;
                ^
cc1: some warnings being treated as errors
make[2]: *** [arch/um/os-Linux/start_up.o] Error 1
make[1]: *** [arch/um/os-Linux] Error 2
make[1]: Leaving directory `/«PKGBUILDDIR»/linux-source-3.2'
make: *** [build-stamp] Error 2
dpkg-buildpackage: error: debian/rules build-arch gave error exit status 2