AC_CHECK_LIB([util], [forkpty], UTIL_LIBS="-lutil", AC_MSG_ERROR([libutil is
required in order to compile LinuxTraceToolkit]))
+
+# pthread for lttd
+AC_CHECK_LIB(pthread, pthread_join,[THREAD_LIBS="-lpthread"], AC_MSG_ERROR([LinuxThreads is required in order to compile lttd]))
+
# Checks for header files.
AC_HEADER_STDC
-AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/time.h unistd.h])
+AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/time.h unistd.h pthread.h])
AC_ISC_POSIX
AC_PROG_CC
AC_SUBST(POPT_LIBS)
AC_SUBST(UTIL_LIBS)
+AC_SUBST(THREAD_LIBS)
AC_SUBST(lttvlibdir)
AC_SUBST(lttvplugindir)
#AC_SUBST(lttlibdir)