[src/trunk]: src/usr.bin/make make: turn run-time string concatenation into c...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/893152588c4a
branches:  trunk
changeset: 1020515:893152588c4a
user:      rillig <rillig%NetBSD.org@localhost>
date:      Wed Apr 14 17:24:48 2021 +0000

description:
make: turn run-time string concatenation into compile-time

No functional change.

diffstat:

 usr.bin/make/main.c |  16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

diffs (66 lines):

diff -r 44f47e3433ba -r 893152588c4a usr.bin/make/main.c
--- a/usr.bin/make/main.c       Wed Apr 14 17:20:48 2021 +0000
+++ b/usr.bin/make/main.c       Wed Apr 14 17:24:48 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: main.c,v 1.537 2021/04/14 17:20:48 rillig Exp $        */
+/*     $NetBSD: main.c,v 1.538 2021/04/14 17:24:48 rillig Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -111,7 +111,7 @@
 #include "trace.h"
 
 /*     "@(#)main.c     8.3 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: main.c,v 1.537 2021/04/14 17:20:48 rillig Exp $");
+MAKE_RCSID("$NetBSD: main.c,v 1.538 2021/04/14 17:24:48 rillig Exp $");
 #if defined(MAKE_NATIVE) && !defined(lint)
 __COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993 "
            "The Regents of the University of California.  "
@@ -869,9 +869,8 @@
  * is false, otherwise true.
  */
 static bool
-GetBooleanVar(const char *varname, bool fallback)
+GetBooleanExpr(const char *expr, bool fallback)
 {
-       char *expr = str_concat3("${", varname, "}");
        char *value;
        bool res;
 
@@ -879,7 +878,6 @@
        /* TODO: handle errors */
        res = ParseBoolean(value, fallback);
        free(value);
-       free(expr);
        return res;
 }
 
@@ -894,7 +892,8 @@
        else if (opts.debugVflag)
                expandVars = false;
        else
-               expandVars = GetBooleanVar(".MAKE.EXPAND_VARIABLES", false);
+               expandVars = GetBooleanExpr("${.MAKE.EXPAND_VARIABLES}",
+                   false);
 
        for (ln = opts.variables.first; ln != NULL; ln = ln->next) {
                const char *varname = ln->datum;
@@ -1086,7 +1085,7 @@
        bool writable;
 
        Dir_InitCur(curdir);
-       writable = GetBooleanVar("MAKE_OBJDIR_CHECK_WRITABLE", true);
+       writable = GetBooleanExpr("${MAKE_OBJDIR_CHECK_WRITABLE}", true);
        (void)Main_SetObjdir(false, "%s", curdir);
 
        if (!SetVarObjdir(writable, "MAKEOBJDIRPREFIX", curdir) &&
@@ -2086,7 +2085,8 @@
        static int quietly = -1;
 
        if (quietly < 0) {
-               if (DEBUG(JOB) || !GetBooleanVar(".MAKE.DIE_QUIETLY", true))
+               if (DEBUG(JOB) ||
+                   !GetBooleanExpr("${.MAKE.DIE_QUIETLY}", true))
                        quietly = 0;
                else if (bf >= 0)
                        quietly = bf;