Date: Sun, 22 Sep 2013 18:25:44 -0500 From: Bryan Drewery <bdrewery@FreeBSD.org> To: Ian Lepore <ian@FreeBSD.org> Cc: FreeBSD Hackers <freebsd-hackers@FreeBSD.org>, freebsd-current <freebsd-current@FreeBSD.org> Subject: Re: The right way to invoke sh from a freebsd makefile? Message-ID: <523F7C78.8080603@FreeBSD.org> In-Reply-To: <1379891905.1197.115.camel@revolution.hippie.lan> References: <1379891905.1197.115.camel@revolution.hippie.lan>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --X1viU4XMpO19OV2vj6IXJPqJhrVikWAOM Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 9/22/2013 6:18 PM, Ian Lepore wrote: > What's the right way to launch the bourne shell from a makefile? I had= > assumed the ${SHELL} variable would be set to "the right" copy > of /bin/sh (like maybe the one in tmp or legacy at various stages). It= > appears that that's not the case, and ${SHELL} is whatever comes from > the environment, which can lead to using csh or bash or whatever. >=20 > I see some of our makefiles use just a bare "sh" which seems reasonable= > to me, but I don't want to glitch this in src/include/Makefile again. > The goal is to run a script in src/include/Makefile by launching sh wit= h > the script name (as opposed to launching the script and letting the #! > do its thing, which doesn't work if the source dir is mounted noexec). >=20 > -- Ian >=20 Grepping the Makefiles in the tree, 'sh' is the very common. I see around 157 users of this pattern. 13 use /bin/sh directly. Also consider that it is highly likely, if not required, that a /bin/sh will exist. Calling 'sh' specifically is definitely more proper than ${SHELL} since it is an sh script. --=20 Regards, Bryan Drewery --X1viU4XMpO19OV2vj6IXJPqJhrVikWAOM Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJSP3x4AAoJEG54KsA8mwz5kSAP/2wm6+efiXjPZAKG2AYntqPX seA40sfTGd0p81eW32HroEv+r3bg0FXL4CnRoIduQQ68tPLvlVA8/V/4JnD/LE3L EiIIru5sRvW1QodHTRVB572jknocFULFg7VquLeEc6mXCmjuvdslHhgnJk84/MZa ZMrhyQzw+HmGzkVGACqFC98FIQsRASwEWxBihz6C2n0naVUo5DhPfjio/uKOtq5+ QBUMvICAAA0K2S2foPP1fV8tyefQxWl43uGxFQqj9GDmU7xAYCjkC0TmJ7cHgCcI h39jGNABCQ8pR8wwEdI8JvbF9XaqukAPuuU3yov0MfWi0waKPWZaX6rWdtLeMpkP JXfBovXR3gyWE5LjYTqja4NFmhbA4bzq/GJhXa5IB4K0XcVOQhj5Eb/MdfniXADz bsspdkR+NDNtNmHB9tAdjE/Bvh0KoRc4+BhF2aQCua5yHrVQPaAJP3g0AvquD1Ux j8u9pXbrTx6dLHdhmASmD/C/lB6L0HMjpGC1peUweZGl7a5uR/Ln+QegokdJuPbk BnGSZb0eKxp28auIMbAPlGPziEAouXprLbJ4mihtP5WT9zwUeZmrmUzNXluwEofA 59q3wneeYnwFOgRnTYO0qKqAqKW/GLaMjl/AIuwmMn7LemCVKmVRQE6A/mw4x/OK ICSdGlW0nZC+1oLmllDG =bH97 -----END PGP SIGNATURE----- --X1viU4XMpO19OV2vj6IXJPqJhrVikWAOM--
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