memmove lchown vsnprintf snprintf vasprintf asprintf setsid glob strpbrk \
strlcat strlcpy strtol mallinfo getgroups setgroups geteuid getegid \
setlocale setmode open64 lseek64 mkstemp64 mtrace va_copy __va_copy \
- strerror putenv iconv_open locale_charset nl_langinfo)
+ strerror putenv iconv_open locale_charset nl_langinfo \
+ sigaction sigprocmask)
AC_CHECK_FUNCS(getpgrp tcgetpgrp)
if test $ac_cv_func_getpgrp = yes; then