Revert "Allow --with-bonjour to work with non-macOS implementations of Bonjour."

Upon further review, our Bonjour code doesn't actually work with the
Avahi not-too-compatible compatibility library.  While you can get it
to work on non-macOS platforms if you link to Apple's own mDNSResponder
code, there don't seem to be many people who care about that.  Leaving in
the AC_SEARCH_LIBS call seems more likely to encourage people to build
broken configurations than to do anything very useful.

Hence, remove the AC_SEARCH_LIBS call and put in a warning comment instead.

Discussion: https://postgr.es/m/2D8331C5-D64F-44C1-8717-63EDC6EAF7EB@brightforge.com
This commit is contained in:
Tom Lane 2017-11-09 11:00:36 -05:00
parent 9b9cb3c453
commit 20d9adab60
2 changed files with 6 additions and 60 deletions

58
configure vendored
View File

@ -11124,64 +11124,6 @@ else
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing DNSServiceRefSockFD" >&5
$as_echo_n "checking for library containing DNSServiceRefSockFD... " >&6; }
if ${ac_cv_search_DNSServiceRefSockFD+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char DNSServiceRefSockFD ();
int
main ()
{
return DNSServiceRefSockFD ();
;
return 0;
}
_ACEOF
for ac_lib in '' dns_sd; do
if test -z "$ac_lib"; then
ac_res="none required"
else
ac_res=-l$ac_lib
LIBS="-l$ac_lib $ac_func_search_save_LIBS"
fi
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_search_DNSServiceRefSockFD=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext
if ${ac_cv_search_DNSServiceRefSockFD+:} false; then :
break
fi
done
if ${ac_cv_search_DNSServiceRefSockFD+:} false; then :
else
ac_cv_search_DNSServiceRefSockFD=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_DNSServiceRefSockFD" >&5
$as_echo "$ac_cv_search_DNSServiceRefSockFD" >&6; }
ac_res=$ac_cv_search_DNSServiceRefSockFD
if test "$ac_res" != no; then :
test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
else
as_fn_error $? "could not find function 'DNSServiceRefSockFD' required for Bonjour" "$LINENO" 5
fi
fi
# for contrib/uuid-ossp

View File

@ -1262,8 +1262,12 @@ fi
if test "$with_bonjour" = yes ; then
AC_CHECK_HEADER(dns_sd.h, [], [AC_MSG_ERROR([header file <dns_sd.h> is required for Bonjour])])
AC_SEARCH_LIBS(DNSServiceRefSockFD, dns_sd, [],
[AC_MSG_ERROR([could not find function 'DNSServiceRefSockFD' required for Bonjour])])
dnl At some point we might add something like
dnl AC_SEARCH_LIBS(DNSServiceRegister, dns_sd)
dnl but right now, what that would mainly accomplish is to encourage
dnl people to try to use the avahi implementation, which does not work.
dnl If you want to use Apple's own Bonjour code on another platform,
dnl just add -ldns_sd to LIBS manually.
fi
# for contrib/uuid-ossp