Date: Tue, 4 Apr 2006 16:14:30 -0500 (CDT) From: Lars Eighner <eighner@io.com> To: freebsd-stable@FreeBSD.ORG Subject: Is Makefile.inc1 in 6 wrong? Message-ID: <20060404160100.U76190@goodwill.io.com>
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It appears to me that either I have a wrong version of awk or this Makefile.inc1 is wrong: # # $FreeBSD: src/Makefile.inc1,v 1.499.2.11 2006/04/04 14:24:03 glebius Exp $ # <Snippage> MAKEOBJDIRPREFIX?= /usr/obj .if !defined(OSRELDATE) .if exists(/usr/include/osreldate.h) OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ /usr/include/osreldate.h .else OSRELDATE= 0 In particular with the double dollar sign in the awk statement, I get no return, therefore OSRELDATE gets set to 0. The awk statement also fails from the command line. But if I use only one $, the awk statement succeeds. Is there a reason for the double dollar sign? Is something wrong with my awk? Or is the Makefile.inc1 wrong? I can't seem to find a switch to get awk to return its version number. Here is /usr/include/osreldate.h /*- * Copyright (c) 1992-2006 The FreeBSD Project. * All rights reserved. * <snippage> * SUCH DAMAGE. * */ #ifdef _KERNEL #error "<osreldate.h> cannot be used in the kernel, use <sys/param.h>" #else #undef __FreeBSD_version #define __FreeBSD_version 504105 #endif Here are the two awk statements run in an editor shell: [1;42;37mTue Apr 04 16:09:48 bash3.1:ttyp0:eighner goodwill~$[0mawk '/^\#define __FreeBSD_version/ {print $$3}' /usr/include/os<ne __FreeBSD_version/ {print $$3}' /usr/include/osreldate.h [1;42;37mTue Apr 04 16:11:08 bash3.1:ttyp0:eighner goodwill~$[0mawk '/^\#define __FreeBSD_version/ {print $3}' /usr/include/osr<ne __FreeBSD_version/ {print $3}' /usr/include/osreldate.h 504105 [1;42;37mTue Apr 04 16:12:12 bash3.1:ttyp0:eighner goodwill~$[0mexit exit In otherwords, $$= no return, $= right answer. Should I upgrade my awk in some way? Or should I hope the maintainer will fix the Makefile? -- Lars Eighner eighner@io.com lars@larseighner.com http://www.larseighner.com/index.html 8800 N IH35 APT 1191 AUSTIN TX 78753-5266
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