Re: [PATCH 1/4] Make configure use /bin/bash instead of /bin/sh

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+From: Tomi Ollila <tomi.ollila@iki.fi>\r
+To: Vladimir Marek <Vladimir.Marek@Oracle.COM>,\r
+       Notmuch Mail <notmuch@notmuchmail.org>\r
+Subject: Re: [PATCH 1/4] Make configure use /bin/bash instead of /bin/sh\r
+In-Reply-To: <20120409121930.GA10554@pub.czech.sun.com>\r
+References: <1333966665-10469-1-git-send-email-Vladimir.Marek@oracle.com>\r
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+Date: Tue, 10 Apr 2012 20:26:33 +0300\r
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+\r
+On Mon, Apr 09 2012, Vladimir Marek wrote:\r
+\r
+>> > Posix /bin/sh is not capable of running this configure and fails.\r
+>> \r
+>> What fails? What would it take to make this work on posix sh instead?\r
+>> \r
+>> The tests do require bash, but generally I think it would be preferable to\r
+>> not depend on bash to build.\r
+>\r
+> Well I gave it a quick stab. This is not posix:\r
+>\r
+> BLAH=$( ... )\r
+> BLAH=$(( ... ))\r
+> ${option%=*}\r
+> ${option%%=*}\r
+> ${option#=*}\r
+> ${option##=*}\r
+\r
+According to \r
+\r
+http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html\r
+\r
+all of those are part of Shell Command Language...\r
+\r
+Does the configure script work if you replace /bin/sh with /bin/ksh\r
+in your Solaris box\r
+\r
+If yes, something like the following could be added to the beginning\r
+of 'configure'\r
+\r
+option=option=value\r
+if test ! x"${option$*=}" = x"value" 2>/dev/null; then\r
+       if test x"${PREVENT_LOOPING-}" = x; then\r
+               PREVENT_LOOPING=true; export PREVENT_LOOPING\r
+                test ! -x /bin/ksh || exec /bin/ksh "$0" "$@"\r
+                test ! -x /bin/bash || exec /bin/bash "$0" "$@"\r
+        fi\r
+        echo "Cannot find compatible shell for '$0'" >&2\r
+        exit 1\r
+fi\r
+\r
+\r
+\r
+>\r
+> First two cases are easy to replace by `...` resp `expr ...`. The rest\r
+> leads to external utility like sed. The dirtiest part of configure is\r
+> parsing the commandline arguments, but that could be replaced by\r
+> /usr/bin/getopts.\r
+>\r
+> If it is appealing way of doing that, I can rework my patch and submit\r
+> it for consideration.\r
+>\r
+> Thank you\r
+> -- \r
+>      Vlad\r
+> _______________________________________________\r
+> notmuch mailing list\r
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