Re: pkg-config zlib check in 3c13bc

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+From: David Bremner <david@tethera.net>\r
+To: Tomi Ollila <tomi.ollila@iki.fi>, =?utf-8?B?WMSrY8Oy?= <xico@atelo.org>,\r
+       notmuch@notmuchmail.org\r
+Subject: Re: pkg-config zlib check in 3c13bc\r
+In-Reply-To: <m2mweuhcna.fsf@guru.guru-group.fi>\r
+References: <20140506194025.GA17097@coyotlan.Tlalpan>\r
+       <m2mweuhcna.fsf@guru.guru-group.fi>\r
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+Date: Thu, 08 May 2014 21:11:07 +0900\r
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+\r
+Tomi Ollila <tomi.ollila@iki.fi> writes:\r
+\r
+>\r
+> But, I'd like suggest alternate option to create a test c program\r
+> and test whether it compiles (analogous to what there is already\r
+> done with many other checks) -- this same would apply to fdatasync()\r
+> case too.\r
+>\r
+\r
+I agree in principle, but I'm not sure it's detectable at compile time,\r
+since the option we need is passed as a string (boo!).  \r
+\r
+I guess the ZLIB_VERNUM hack would be preferable to adding platform\r
+specific checks to configure. But note you'd need somehow to find\r
+zlib.h.\r
+\r
+See my other patch for fdatasync.\r
+\r
+d\r