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+?RCS: $Id: d_dlerror.U 167 2013-05-08 17:58:00Z rmanfredi $
+?RCS:
+?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
+?RCS:
+?RCS: You may redistribute only under the terms of the Artistic License,
+?RCS: as specified in the README file that comes with the distribution.
+?RCS: You may reuse parts of this distribution only within the terms of
+?RCS: that same Artistic License; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?RCS:
+?RCS: Original Author: Andy Dougherty <doughera@lafcol.lafayette.edu>
+?RCS:
+?RCS: $Log: d_dlerror.U,v $
+?RCS: Revision 3.0.1.2 1995/07/25 13:52:49 ram
+?RCS: patch56: force compile-link test since symbol might lie in crt0.o (ADO)
+?RCS:
+?RCS: Revision 3.0.1.1 1994/10/29 16:11:23 ram
+?RCS: patch36: created by ADO
+?RCS:
+?MAKE:d_dlerror: Trylink cat i_dlfcn
+?MAKE: -pick add $@ %<
+?S:d_dlerror:
+?S: This variable conditionally defines the HAS_DLERROR symbol, which
+?S: indicates to the C program that the dlerror() routine is available.
+?S:.
+?C:HAS_DLERROR :
+?C: This symbol, if defined, indicates that the dlerror routine is
+?C: available to return a string describing the last error that
+?C: occurred from a call to dlopen(), dlclose() or dlsym().
+?C:.
+?H:#$d_dlerror HAS_DLERROR /**/
+?H:.
+?LINT:set d_dlerror
+: see if dlerror exists
+$cat >try.c <<EOC
+#$i_dlfcn I_DLFCN
+#ifdef I_DLFCN
+#include <dlfcn.h>
+#endif
+int main(void)
+{
+ static char ret;
+ ret |= *dlerror();
+ return ret ? 0 : 1;
+}
+EOC
+cyn=dlerror
+set d_dlerror '-ldl'
+eval $trylink
+