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
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+References: <20140506194025.GA17097@coyotlan.Tlalpan>\r
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+Date: Sat, 10 May 2014 09:46:00 +0900\r
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+\r
+Tomi Ollila <tomi.ollila@iki.fi> writes:\r
+\r
+>\r
+> Actually my suggestion would be that if that pkg-config line for \r
+> zlib does not work (btw why does it not work) \r
+\r
+I guess because FreeBSD (and maybe other systems) have a distinction \r
+between the "base system" and "add on packages" and pkg-config only\r
+works for the latter\r
+\r
+> try an option\r
+> where zlib_cflags is expected to be empty and and zlib_ldflags -lz\r
+> -- and try compile and run test program with those options\r
+> then the test program is something like\r
+>\r
+> int main(void)\r
+> {\r
+>     return(ZLIB_VERNUM >= 0x1252);\r
+> }\r
+\r
+OK, that sounds like it could work.  Ideally, somebody on FreeBSD could\r
+check...\r
+\r
+d\r