# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_MMAP
-AC_CHECK_FUNCS([bzero gettimeofday munmap sched_getcpu strtoul sysconf gettid])
+AC_CHECK_FUNCS(
+ [bzero gettimeofday munmap sched_getcpu strtoul sysconf gettid memeset strerror]
+)
+
+# Check for headers
+AC_CHECK_HEADERS([limits.h stddef.h sys/time.h])
# Find arch type
AS_CASE([$host_cpu],