Re: [RFC PATCH] configure: Create sh.config based on Makefile.config data

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+From: Jani Nikula <jani@nikula.org>\r
+To: Tomi Ollila <tomi.ollila@iki.fi>, notmuch@notmuchmail.org\r
+Subject: Re: [RFC PATCH] configure: Create sh.config based on Makefile.config\r
+       data\r
+In-Reply-To: <1399802816-29521-1-git-send-email-tomi.ollila@iki.fi>\r
+References: <1399802816-29521-1-git-send-email-tomi.ollila@iki.fi>\r
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+Date: Sun, 25 May 2014 11:22:48 +0300\r
+Message-ID: <87tx8ei7xj.fsf@nikula.org>\r
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+Cc: tomi.ollila@iki.fi\r
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+\r
+On Sun, 11 May 2014, Tomi Ollila <tomi.ollila@iki.fi> wrote:\r
+> Read Makefile.config and when line matches var = val assignment\r
+> create _var='val' from it. var must match [a-zA-Z_][a-zA-Z0-9_]*\r
+> and val [^'\]* ('\' usually meaning multiline assignments).\r
+>\r
+> Write these lines to sh.config.\r
+>\r
+> sh.config can then be used e.g. in test scripts.\r
+\r
+I like the general idea here much better than [1] or the symlinks that\r
+we have now. However I'm wary of the sed magic and the various ways it\r
+might trip over. The resulting file has way more info than we need, but\r
+then it also misses the multiline settings (which we luckily don't\r
+need).\r
+\r
+At the risk of duplicating stuff, I'd go with manually generated config\r
+for shell with minimal amount of information. For now, we'd only need\r
+this for HAVE_XAPIAN_COMPACT and HAVE_MAN (the latter of which could\r
+also be dropped from Makefile.config).\r
+\r
+BR,\r
+Jani.\r
+\r
+\r
+[1] id:1399737224-79348-1-git-send-email-cceleri@cs.stanford.edu\r
+\r
+\r
+\r
+\r
+> ---\r
+>  configure | 5 +++++\r
+>  1 file changed, 5 insertions(+)\r
+>\r
+> diff --git a/configure b/configure\r
+> index 9bde2eb72b0e..feb0e480f86a 100755\r
+> --- a/configure\r
+> +++ b/configure\r
+> @@ -935,3 +935,8 @@ CONFIGURE_CXXFLAGS = -DHAVE_GETLINE=\$(HAVE_GETLINE) \$(GMIME_CFLAGS)    \\\r
+>  \r
+>  CONFIGURE_LDFLAGS =  \$(GMIME_LDFLAGS) \$(TALLOC_LDFLAGS) \$(ZLIB_LDFLAGS) \$(XAPIAN_LDFLAGS)\r
+>  EOF\r
+> +\r
+> +# Create sh.config based on Makefile.config values.\r
+> +# Output will be _var='val', val not containing ' nor \ (skipping multiline).\r
+> +sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\) *= *\([^\\'\'']*\)$/_\1='\''\2'\''/p' \\r
+> +    Makefile.config > sh.config\r
+> -- \r
+> 1.8.0\r
+>\r
+> _______________________________________________\r
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