ncurses 5.9 - patch 20111030
[ncurses.git] / Ada95 / aclocal.m4
index 355d4371ccedc1a6f96a4e7ff5759c4a4a0ba1e3..d6430925ee322629fc1d49ea0a4f1bbf8fa6c960 100644 (file)
@@ -28,7 +28,7 @@ dnl***************************************************************************
 dnl
 dnl Author: Thomas E. Dickey
 dnl
-dnl $Id: aclocal.m4,v 1.38 2011/10/22 19:04:02 tom Exp $
+dnl $Id: aclocal.m4,v 1.39 2011/10/30 23:24:00 tom Exp $
 dnl Macros used in NCURSES Ada95 auto-configuration script.
 dnl
 dnl These macros are maintained separately from NCURSES.  The copyright on
@@ -3342,6 +3342,45 @@ top_builddir=`pwd`
 AC_SUBST(top_builddir)
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
+dnl -------------------
+dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
+dnl can define it successfully.
+AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
+AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
+       AC_TRY_COMPILE([
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+],[
+#ifndef _XOPEN_SOURCE
+make an error
+#endif],
+       [cf_cv_xopen_source=no],
+       [cf_save="$CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
+        AC_TRY_COMPILE([
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+],[
+#ifdef _XOPEN_SOURCE
+make an error
+#endif],
+       [cf_cv_xopen_source=no],
+       [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
+       CPPFLAGS="$cf_save"
+       ])
+])
+
+if test "$cf_cv_xopen_source" != no ; then
+       CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
+       CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
+       cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
+       CF_ADD_CFLAGS($cf_temp_xopen_source)
+fi
+])
+dnl ---------------------------------------------------------------------------
 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
 dnl --------
 dnl Make an uppercase version of a variable
@@ -3605,7 +3644,7 @@ if test "$with_pthread" != no ; then
 fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_XOPEN_SOURCE version: 37 updated: 2011/08/06 20:32:05
+dnl CF_XOPEN_SOURCE version: 39 updated: 2011/10/30 17:09:50
 dnl ---------------
 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
 dnl or adapt to the vendor's definitions to get equivalent functionality,
@@ -3671,36 +3710,11 @@ nto-qnx*) #(vi
 sco*) #(vi
        # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
        ;;
-solaris2.1[[0-9]]) #(vi
-       cf_xopen_source="-D__EXTENSIONS__ -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
-       ;;
-solaris2.[[1-9]]) #(vi
+solaris2.*) #(vi
        cf_xopen_source="-D__EXTENSIONS__"
        ;;
 *)
-       AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
-       AC_TRY_COMPILE([#include <sys/types.h>],[
-#ifndef _XOPEN_SOURCE
-make an error
-#endif],
-       [cf_cv_xopen_source=no],
-       [cf_save="$CPPFLAGS"
-        CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
-        AC_TRY_COMPILE([#include <sys/types.h>],[
-#ifdef _XOPEN_SOURCE
-make an error
-#endif],
-       [cf_cv_xopen_source=no],
-       [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
-       CPPFLAGS="$cf_save"
-       ])
-])
-       if test "$cf_cv_xopen_source" != no ; then
-               CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
-               CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
-               cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
-               CF_ADD_CFLAGS($cf_temp_xopen_source)
-       fi
+       CF_TRY_XOPEN_SOURCE
        CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
        ;;
 esac
@@ -3708,4 +3722,33 @@ esac
 if test -n "$cf_xopen_source" ; then
        CF_ADD_CFLAGS($cf_xopen_source)
 fi
+
+dnl In anything but the default case, we may have system-specific setting
+dnl which is still not guaranteed to provide all of the entrypoints that
+dnl _XOPEN_SOURCE would yield.
+if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
+       AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
+       AC_TRY_COMPILE([#include <stdlib.h>],[
+#ifndef _XOPEN_SOURCE
+make an error
+#endif],
+       [cf_XOPEN_SOURCE_set=yes],
+       [cf_XOPEN_SOURCE_set=no])
+       AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
+       if test $cf_XOPEN_SOURCE_set = yes
+       then
+               AC_TRY_COMPILE([#include <stdlib.h>],[
+#if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
+make an error
+#endif],
+               [cf_XOPEN_SOURCE_set_ok=yes],
+               [cf_XOPEN_SOURCE_set_ok=no])
+               if test $cf_XOPEN_SOURCE_set_ok = no
+               then
+                       AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
+               fi
+       else
+               CF_TRY_XOPEN_SOURCE
+       fi
+fi
 ])