1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Knowledge Ventures * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 24 #define unsetenv ______unsetenv 25 26 #include <ast.h> 27 28 #undef unsetenv 29 30 #if _lib_unsetenv 31 32 NoN(unsetenv) 33 34 #else 35 36 #undef _def_map_ast 37 #include <ast_map.h> 38 39 #if defined(__EXPORT__) 40 #define extern __EXPORT__ 41 #endif 42 43 extern void 44 unsetenv(const char *name) 45 { 46 if (!strchr(name, '=')) 47 setenviron(name); 48 } 49 50 #endif 51