diff options
Diffstat (limited to 'var.c')
| -rw-r--r-- | var.c | 17 |
1 files changed, 9 insertions, 8 deletions
@@ -1,4 +1,4 @@ -/* $NetBSD: var.c,v 1.215 2017/04/16 21:39:49 riastradh Exp $ */ +/* $NetBSD: var.c,v 1.218 2018/02/18 00:52:42 sjg Exp $ */ /* * Copyright (c) 1988, 1989, 1990, 1993 @@ -69,14 +69,14 @@ */ #ifndef MAKE_NATIVE -static char rcsid[] = "$NetBSD: var.c,v 1.215 2017/04/16 21:39:49 riastradh Exp $"; +static char rcsid[] = "$NetBSD: var.c,v 1.218 2018/02/18 00:52:42 sjg Exp $"; #else #include <sys/cdefs.h> #ifndef lint #if 0 static char sccsid[] = "@(#)var.c 8.3 (Berkeley) 3/19/94"; #else -__RCSID("$NetBSD: var.c,v 1.215 2017/04/16 21:39:49 riastradh Exp $"); +__RCSID("$NetBSD: var.c,v 1.218 2018/02/18 00:52:42 sjg Exp $"); #endif #endif /* not lint */ #endif @@ -970,7 +970,8 @@ Var_Set(const char *name, const char *val, GNode *ctxt, int flags) VarAdd(name, val, ctxt); } else { Buf_Empty(&v->val); - Buf_AddBytes(&v->val, strlen(val), val); + if (val) + Buf_AddBytes(&v->val, strlen(val), val); if (DEBUG(VAR)) { fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); @@ -997,7 +998,7 @@ Var_Set(const char *name, const char *val, GNode *ctxt, int flags) * Makefile settings. */ if (varNoExportEnv != TRUE) - setenv(name, val, 1); + setenv(name, val ? val : "", 1); Var_Append(MAKEOVERRIDES, name, VAR_GLOBAL); } @@ -1060,11 +1061,11 @@ Var_Append(const char *name, const char *val, GNode *ctxt) name = expanded_name; } - v = VarFind(name, ctxt, (ctxt == VAR_GLOBAL) ? FIND_ENV : 0); + v = VarFind(name, ctxt, (ctxt == VAR_GLOBAL) ? (FIND_CMD|FIND_ENV) : 0); if (v == NULL) { - VarAdd(name, val, ctxt); - } else { + Var_Set(name, val, ctxt, 0); + } else if (ctxt == VAR_CMD || !(v->flags & VAR_FROM_CMD)) { Buf_AddByte(&v->val, ' '); Buf_AddBytes(&v->val, strlen(val), val); |