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[src/trunk]: src/usr.bin/make make(1): fix wrong error for undefined variable...



details:   https://anonhg.NetBSD.org/src/rev/dc9039dd8e1d
branches:  trunk
changeset: 955007:dc9039dd8e1d
user:      rillig <rillig%NetBSD.org@localhost>
date:      Mon Sep 14 21:55:53 2020 +0000

description:
make(1): fix wrong error for undefined variables in lint mode

diffstat:

 usr.bin/make/unit-tests/opt-debug-lint.exp |  1 -
 usr.bin/make/unit-tests/opt-debug-lint.mk  |  5 +----
 usr.bin/make/var.c                         |  8 +++++---
 3 files changed, 6 insertions(+), 8 deletions(-)

diffs (58 lines):

diff -r d3d99d680afd -r dc9039dd8e1d usr.bin/make/unit-tests/opt-debug-lint.exp
--- a/usr.bin/make/unit-tests/opt-debug-lint.exp        Mon Sep 14 21:52:49 2020 +0000
+++ b/usr.bin/make/unit-tests/opt-debug-lint.exp        Mon Sep 14 21:55:53 2020 +0000
@@ -1,6 +1,5 @@
 make: "opt-debug-lint.mk" line 19: Variable "X" is undefined
 make: "opt-debug-lint.mk" line 41: Variable "UNDEF" is undefined
-make: "opt-debug-lint.mk" line 58: Variable "UNDEF" is undefined
 make: Fatal errors encountered -- cannot continue
 make: stopped in unit-tests
 exit status 1
diff -r d3d99d680afd -r dc9039dd8e1d usr.bin/make/unit-tests/opt-debug-lint.mk
--- a/usr.bin/make/unit-tests/opt-debug-lint.mk Mon Sep 14 21:52:49 2020 +0000
+++ b/usr.bin/make/unit-tests/opt-debug-lint.mk Mon Sep 14 21:55:53 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: opt-debug-lint.mk,v 1.6 2020/09/14 21:52:49 rillig Exp $
+# $NetBSD: opt-debug-lint.mk,v 1.7 2020/09/14 21:55:53 rillig Exp $
 #
 # Tests for the -dL command line option, which runs additional checks
 # to catch common mistakes, such as unclosed variable expressions.
@@ -52,9 +52,6 @@
 # if the variable is indeed defined.  Otherwise they are only parsed, and
 # for parsing it doesn't make a difference whether the variable is defined
 # or not.
-#
-# FIXME: As of 2020-09-14, the following line prints an error message saying
-# that UNDEF is undefined.
 .if defined(UNDEF) && exists(${UNDEF})
 .  error
 .endif
diff -r d3d99d680afd -r dc9039dd8e1d usr.bin/make/var.c
--- a/usr.bin/make/var.c        Mon Sep 14 21:52:49 2020 +0000
+++ b/usr.bin/make/var.c        Mon Sep 14 21:55:53 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: var.c,v 1.521 2020/09/14 20:43:44 rillig Exp $ */
+/*     $NetBSD: var.c,v 1.522 2020/09/14 21:55:53 rillig Exp $ */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -121,7 +121,7 @@
 #include    "metachar.h"
 
 /*     "@(#)var.c      8.3 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: var.c,v 1.521 2020/09/14 20:43:44 rillig Exp $");
+MAKE_RCSID("$NetBSD: var.c,v 1.522 2020/09/14 21:55:53 rillig Exp $");
 
 #define VAR_DEBUG_IF(cond, fmt, ...)   \
     if (!(DEBUG(VAR) && (cond)))       \
@@ -3557,7 +3557,9 @@
                    return VPE_OK;
                }
 
-               if ((eflags & VARE_UNDEFERR) && DEBUG(LINT)) {
+               if ((eflags & VARE_UNDEFERR) && (eflags & VARE_WANTRES) &&
+                   DEBUG(LINT))
+               {
                    Parse_Error(PARSE_FATAL, "Variable \"%s\" is undefined",
                                varname);
                    free(varname);



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