Thomas Munro <thomas.munro@enterprisedb.com> writes:
> On Thu, Nov 9, 2017 at 10:05 AM, Luke Lonergan <luke@brightforge.com> wrote:
>> + AC_CHECK_LIB(dns_sd, DNSServiceRefSockFD, [], [AC_MSG_ERROR([library
>> 'dns_sd' is required for Bonjour])])
> It lives in libSystem.dylib (implicitly linked) on macOS, so that
> would break the build there. We'd need something a bit more
> conditional, but I don't know what.
A quick look at the Autoconf manual finds:
`AC_CHECK_LIB' requires some care in usage, and should be avoided in some common cases. Many standard functions
like`gethostbyname' appear in the standard C library on some hosts, and in special libraries like `nsl' on other
hosts. On some hosts the special libraries contain variant implementations that you may not want to use. These
daysit is normally better to use `AC_SEARCH_LIBS([gethostbyname], [nsl])' instead of `AC_CHECK_LIB([nsl],
[gethostbyname])'.
If Luke wants to check that that works for him, I can check it on
macOS.
regards, tom lane
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