First work on threaded version.

[idzebra-moved-to-github.git] / configure.in

diff --git a/configure.in b/configure.in
index 7d7d074..e08d6b1 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1,5 +1,5 @@
 dnl Zebra, Index Data Aps, 1994-1999
-dnl $Id: configure.in,v 1.16 2000-03-01 10:02:04 adam Exp $
+dnl $Id: configure.in,v 1.17 2000-03-15 15:00:30 adam Exp $
 dnl See the file LICENSE.2 for details.
 dnl
 AC_INIT(include/zebraver.h)
@@ -60,6 +60,26 @@ else
        AC_MSG_RESULT(Not found)
 fi
 dnl
+dnl ------ Threads
+AC_ARG_ENABLE(threads, [  --disable-threads       disable threads],[enable_threads=$enableval],[enable_threads=yes])
+if test "$enable_threads" = "yes"; then
+       AC_CHECK_LIB(pthread,main)
+       AC_MSG_CHECKING(for working POSIX Threads)
+       AC_TRY_LINK([#include <pthread.h>
+       int func(void *p) { return 0; }
+       ],[
+       pthread_t pthread_id;
+       int r = pthread_create (&pthread_id, 0, func, 0);],
+               thread_ok=yes,thread_ok=no)
+       if test "$thread_ok" = "yes"; then
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_PTHREAD_H)
+               AC_DEFINE(_REENTRANT)
+       else
+               AC_MSG_RESULT(no)
+       fi
+fi
+dnl
 dnl ------ Look for Tcl
 dnl See if user has specified location of tclConfig.sh; otherwise
 dnl see if tclConfig.sh exists in same prefix lcoation as tclsh; otherwise