On Mon, Mar 12, 2012 at 08:22:49PM +0100, Simon Josefsson wrote:
> Shishi is an implementation of the Kerberos 5 network authentication
> system. Shishi can be used to authenticate users in distributed
> systems. Shishi is part of a GNU system.
>
> * Version 1.0.1 (released 2012-03-12)
libresolv.so does not provide res_query on some architectures. At least
on amd64 here, libresolv.so provides __res_query only and res_query is
defined by resolv.h. So, configure cannot find res_query in libresolv.so
with AC_CHECK_LIB.
The attached patch includes resolv.h in the test and works for me.
--
Eray Aslan <[email protected]>
--- configure.ac 2012-03-12 20:18:21.000000000 +0200
+++ configure.ac 2012-03-14 22:03:15.854332138 +0200
@@ -82,7 +82,27 @@
# Checks for library functions.
AC_CHECK_FUNCS(signal select ngettext gethostbyname getpwnam getuid)
-AC_CHECK_LIB(resolv, res_query,, AC_MSG_WARN([[no libresolv, SRV RRs not
used]]))
+
+# libresolv provides only __res_query on some architectures
+# so we cannot just use AC_CHECK_LIB
+_save_LIBS="$LIBS"
+LIBS="$LIBS -lresolv"
+AC_MSG_CHECKING(for res_query in -lresolv)
+AC_LINK_IFELSE([
+#include <resolv.h>
+int main()
+{
+ res_query (0, 0, 0, 0, 0);
+ return 0;
+}],
+[_res_query_in_resolv=yes],
+[_res_query_in_resolv=no])
+AC_MSG_RESULT([$_res_query_in_resolv])
+if test "x$_res_query_in_resolv" = "xno"; then
+ LIBS="$_save_LIBS"
+ AC_MSG_WARN([[no libresolv, SRV RRs not used]])
+fi
+
AC_SEARCH_LIBS(socket, socket)
AC_SEARCH_LIBS(gethostbyname, nsl)
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