+ sysconf\
+ readv\
+ popen])
+
+# check for a working snprintf (or use xbt/snprintf.c, which comes from http://www.ijs.si/software/snprintf/)
+AC_FUNC_SNPRINTF
+# check for asprintf function familly (or request the replacements from xbt/snprintf.c)
+AC_CHECK_FUNC( asprintf, :, AC_DEFINE(NEED_ASPRINTF, 1, enable the asprintf replacement))
+AC_CHECK_FUNC( vasprintf, :, AC_DEFINE(NEED_VASPRINTF, 1, enable the vasprintf replacement))
+# we don't use those:
+# A C_CHECK_FUNC( asnprintf, :, A C_DEFINE(NEED_ASNPRINTF, 1, enable the asnprintf replacement))
+# A C_CHECK_FUNC(vasnprintf, :, A C_DEFINE(NEED_VASNPRINTF, 1, enable the vansprintf replacement))
+