FTBFS: error: POSIX threads support is required

Hi there,

the package libomxalsa fails to build in a current Ubuntu rebuild test on i386.

(Hopefully) Relevant part of the log:
--------------------------------------

configure:11804: result: no
configure:11681: checking whether pthreads work with -mt
configure:11774: gcc -o conftest -Werror -mt conftest.c >&5
gcc: error: unrecognized command line option '-mt'
configure:11781: $? = 1
configure: failed program was:
| /* confdefs.h. */
| #define PACKAGE_NAME "OpenMAX Bellagio libasound based ALSA Src/Sink Component"
| #define PACKAGE_TARNAME "libomxalsa"
| #define PACKAGE_VERSION "0.1"
| #define PACKAGE_STRING "OpenMAX Bellagio libasound based ALSA Src/Sink Component 0.1"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE "libomxalsa"
| #define VERSION "0.1"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_DLFCN_H 1
| #define LT_OBJDIR ".libs/"
| /* end confdefs.h. */
| #include <pthread.h>
| int
| main ()
| {
| pthread_t th; pthread_join(th, 0);
| pthread_attr_init(0); pthread_cleanup_push(0, 0);
| pthread_create(0,0,0,0); pthread_cleanup_pop(0);
| ;
| return 0;
| }
configure:11804: result: no
configure:11689: checking for pthread-config
configure:11717: result: no
configure:11961: error: POSIX threads support is required

A full buildlog is available at https://launchpad.net/ubuntu/+archive/test-rebuild-20140127/+build/5514491/+files/buildlog_ubuntu-trusty-i386.libomxalsa_0.1-2_FAILEDTOBUILD.txt.gz

Thanks for your time!

Regards,
  Andreas

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