AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
pipe poll pread pread64 pwrite resize_term \
sbrk getpgid setpgid setpgrp setsid \
- sigaction sigprocmask sigsetmask socketpair \
+ sigaction sigsetmask socketpair \
ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
setrlimit getrlimit posix_madvise waitpid \
ptrace64 sigaltstack setns use_default_colors])