Date: Fri, 10 Aug 2018 01:39:43 +0000
From: bugzilla-noreply@freebsd.org
To: bugs@FreeBSD.org
Subject: [Bug 230492] make: -C options doesn't work as explained in man page about value of ${.CURDIR} when logical and physical directory are different.
Message-ID: <bug-230492-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230492 Bug ID: 230492 Summary: make: -C options doesn't work as explained in man page about value of ${.CURDIR} when logical and physical directory are different. Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: yasu@utahime.org In the man page of make(1) '-C' options is explained as following. ---------------------------------------------------------------------- -C directory Change to directory before reading the makefiles or doing anything else. If multiple -C options are specified, each is interpreted relative to the previous one: -C / -C etc is equivalent to -C /etc. ---------------------------------------------------------------------- This means 'make -C /foo/bar/baz' works same as 'cd /foo/bar/baz; make'. But there is an case that make doesn't behaves so. As explained in summary = it is about value of ${.CURDIR} and happens when logical and physical directory are different. Let me explain it by providing an example. ---------------------------------------------------------------------- yasu@rolling-vm-freebsd1[2018]% pwd /home/yasu/tmp yasu@rolling-vm-freebsd1[2019]% ls -l total 1 lrwxr-xr-x 1 yasu user 3 8=E6=9C=88 10 08:21 bar@ -> foo drwxr-xr-x 2 yasu user 3 8=E6=9C=88 10 08:20 foo/ ---------------------------------------------------------------------- /home/yasu/tmp/foo is real directory and /home/yasu/tmp/bar is symbolic lin= k to it. So logical and physical expression of /home/yasu/tmp/bar is different. ---------------------------------------------------------------------- yasu@rolling-vm-freebsd1[2020]% cd /home/yasu/tmp/bar yasu@rolling-vm-freebsd1[2021]% /bin/pwd -L /home/yasu/tmp/bar yasu@rolling-vm-freebsd1[2022]% /bin/pwd -P /home/yasu/tmp/foo ---------------------------------------------------------------------- And there is following Makefile under /home/yasu/tmp/bar. ---------------------------------------------------------------------- yasu@rolling-vm-freebsd1[2023]% cat Makefile=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 ~/tmp/bar all: @echo ${.CURDIR} ---------------------------------------------------------------------- It simply displays value of ${.CURDIR}. Now let's execute make without any arguments. It causes following result. ---------------------------------------------------------------------- yasu@rolling-vm-freebsd1[2024]% make=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20 ~/tmp/bar /home/yasu/tmp/foo ---------------------------------------------------------------------- Physical expression of current working directory is displayed. Next, let's execute make with -C options and logical expression of current working directory. In this case it result as following. ---------------------------------------------------------------------- yasu@rolling-vm-freebsd1[2025]% make -C /home/yasu/tmp/bar=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 ~/tmp/bar /home/yasu/tmp/bar ---------------------------------------------------------------------- If '-C' options works exactly as explained in man page, same value as previ= ous execution, that is, physical expression of current working directory should= be displayed. Actually, however, what is displayed is logical expression of current working directory. This means '-C' option doesn't work as explained= in man page. I confirmed it happens on both 11.2-RELEASE and 12.0-CURRENT (r337160). --=20 You are receiving this mail because: You are the assignee for the bug.=
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