Module Name:    src
Committed By:   rillig
Date:           Sat Aug 29 14:47:26 UTC 2020

Modified Files:
        src/distrib/sets/lists/tests: mi
        src/usr.bin/make: compat.c
        src/usr.bin/make/unit-tests: Makefile
Added Files:
        src/usr.bin/make/unit-tests: archive-suffix.exp archive-suffix.mk

Log Message:
make(1): fix assertion failure for .SUFFIXES in archives

This occurred in the posix1.mk test, even though it is disabled in
unit-tests.  But in tests/usr.bin/make it still runs.  There, it should
have produced an "expected failure" but crashed instead.

The archive-suffix test is the stripped-down version of the posix1 test.


To generate a diff of this commit:
cvs rdiff -u -r1.912 -r1.913 src/distrib/sets/lists/tests/mi
cvs rdiff -u -r1.134 -r1.135 src/usr.bin/make/compat.c
cvs rdiff -u -r1.125 -r1.126 src/usr.bin/make/unit-tests/Makefile
cvs rdiff -u -r0 -r1.1 src/usr.bin/make/unit-tests/archive-suffix.exp \
    src/usr.bin/make/unit-tests/archive-suffix.mk

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/distrib/sets/lists/tests/mi
diff -u src/distrib/sets/lists/tests/mi:1.912 src/distrib/sets/lists/tests/mi:1.913
--- src/distrib/sets/lists/tests/mi:1.912	Fri Aug 28 15:40:53 2020
+++ src/distrib/sets/lists/tests/mi	Sat Aug 29 14:47:26 2020
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.912 2020/08/28 15:40:53 rillig Exp $
+# $NetBSD: mi,v 1.913 2020/08/29 14:47:26 rillig Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -4540,6 +4540,8 @@
 ./usr/tests/usr.bin/make/unit-tests/Makefile	tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/archive.exp	tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/archive.mk	tests-usr.bin-tests	compattestfile,atf
+./usr/tests/usr.bin/make/unit-tests/archive-suffix.exp	tests-usr.bin-tests	compattestfile,atf
+./usr/tests/usr.bin/make/unit-tests/archive-suffix.mk	tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/cmd-interrupt.exp	tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/cmd-interrupt.mk	tests-usr.bin-tests	compattestfile,atf
 ./usr/tests/usr.bin/make/unit-tests/cmdline.exp	tests-usr.bin-tests	compattestfile,atf

Index: src/usr.bin/make/compat.c
diff -u src/usr.bin/make/compat.c:1.134 src/usr.bin/make/compat.c:1.135
--- src/usr.bin/make/compat.c:1.134	Sat Aug 29 12:36:20 2020
+++ src/usr.bin/make/compat.c	Sat Aug 29 14:47:26 2020
@@ -1,4 +1,4 @@
-/*	$NetBSD: compat.c,v 1.134 2020/08/29 12:36:20 rillig Exp $	*/
+/*	$NetBSD: compat.c,v 1.135 2020/08/29 14:47:26 rillig Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -70,14 +70,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: compat.c,v 1.134 2020/08/29 12:36:20 rillig Exp $";
+static char rcsid[] = "$NetBSD: compat.c,v 1.135 2020/08/29 14:47:26 rillig Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)compat.c	8.2 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: compat.c,v 1.134 2020/08/29 12:36:20 rillig Exp $");
+__RCSID("$NetBSD: compat.c,v 1.135 2020/08/29 14:47:26 rillig Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -635,7 +635,8 @@ Compat_Make(void *gnp, void *pgnp)
     } else {
 	if (Lst_Member(gn->iParents, pgn) != NULL) {
 	    char *p1;
-	    Var_Set(IMPSRC, Var_Value(TARGET, gn, &p1), pgn);
+	    const char *target = Var_Value(TARGET, gn, &p1);
+	    Var_Set(IMPSRC, target != NULL ? target : "", pgn);
 	    bmake_free(p1);
 	}
 	switch(gn->made) {

Index: src/usr.bin/make/unit-tests/Makefile
diff -u src/usr.bin/make/unit-tests/Makefile:1.125 src/usr.bin/make/unit-tests/Makefile:1.126
--- src/usr.bin/make/unit-tests/Makefile:1.125	Sat Aug 29 10:52:47 2020
+++ src/usr.bin/make/unit-tests/Makefile	Sat Aug 29 14:47:26 2020
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.125 2020/08/29 10:52:47 rillig Exp $
+# $NetBSD: Makefile,v 1.126 2020/08/29 14:47:26 rillig Exp $
 #
 # Unit tests for make(1)
 #
@@ -36,6 +36,7 @@
 # Any test that is commented out must be ignored in
 # src/tests/usr.bin/make/t_make.sh as well.
 TESTS+=		# archive	# broken on FreeBSD, enabled in t_make.sh
+TESTS+=		archive-suffix
 TESTS+=		cmd-interrupt
 TESTS+=		cmdline
 TESTS+=		comment

Added files:

Index: src/usr.bin/make/unit-tests/archive-suffix.exp
diff -u /dev/null src/usr.bin/make/unit-tests/archive-suffix.exp:1.1
--- /dev/null	Sat Aug 29 14:47:26 2020
+++ src/usr.bin/make/unit-tests/archive-suffix.exp	Sat Aug 29 14:47:26 2020
@@ -0,0 +1,2 @@
+`all' is up to date.
+exit status 0
Index: src/usr.bin/make/unit-tests/archive-suffix.mk
diff -u /dev/null src/usr.bin/make/unit-tests/archive-suffix.mk:1.1
--- /dev/null	Sat Aug 29 14:47:26 2020
+++ src/usr.bin/make/unit-tests/archive-suffix.mk	Sat Aug 29 14:47:26 2020
@@ -0,0 +1,23 @@
+# $NetBSD: archive-suffix.mk,v 1.1 2020/08/29 14:47:26 rillig Exp $
+#
+# Between 2020-08-23 and 2020-08-30, the below code produced an assertion
+# failure in Var_Set_with_flags, triggered by Compat_Make, when setting the
+# .IMPSRC of an archive node to its .TARGET.
+#
+# The code assumed that the .TARGET variable of every node would be set, but
+# but that is not guaranteed.
+#
+# Between 2016-03-15 and 2016-03-16 the behavior of the below code changed.
+# Until 2016-03-15, it remade the target, starting with 2016-03-16 it says
+# "`all' is up to date".
+
+.SUFFIXES:
+.SUFFIXES: .c .o
+
+all:	lib.a(obj1.o)
+
+.c.o:
+	: making $@
+
+obj1.c:
+	: $@

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