--- a/configure.in	Mon Aug 13 10:59:30 2007 +0200
+++ b/configure.in	Mon Aug 13 11:00:12 2007 +0200
@@ -3115,6 +3115,11 @@
 
 AC_CHECK_FUNCS(cbrt closedir dup2 eaccess fmod fpathconf frexp ftime gethostname getpagesize gettimeofday getcwd getwd logb lrand48 matherr mkdir mktime perror poll random rename res_init rint rmdir select setitimer setpgid setlocale setsid sigblock sighold sigprocmask snprintf strcasecmp strerror tzset ulimit usleep utimes waitpid vsnprintf)
 
+# Check for UNIX98 PTYs.
+# getpt is a glibc addition which emulates the master device on
+# systems without kernel support.
+AC_CHECK_FUNCS(grantpt unlockpt getpt ptsname)
+
 dnl realpath is buggy on linux, decosf and aix4
 
 dnl The realpath() in linux libc (4.6.27) sometimes fails with ELOOP.
@@ -3432,6 +3437,14 @@
   dnl If the nas library does not contain the error jump point,
   dnl then we force safer behaviour.
   AC_EGREP_HEADER(AuXtErrorJump,audio/Xtutil.h,,[AC_DEFINE(NAS_NO_ERROR_JUMP)])
+  dnl NAS <= 1.2p5 defines {BIG,LITTLE}_ENDIAN in conflict with GNU libc etc
+  dnl Recent NAS prefixes NAS_ to avoid polluting namespace
+  AC_EGREP_CPP(yes,
+[#include <audio/fileutil.h>
+#ifdef NAS_BIG_ENDIAN
+yes
+#endif
+],[AC_DEFINE(NAS_USES_OWN_NAMESPACE)])
 esac
 
 dnl ---------------------