Check for dn_skipname() when checking res_search() to resolve µClibc compile failures.

This works by disabling the DNS alias detection feature,
which is however deprecated anyways.

svn path=/branches/BRANCH_6-3/; revision=5106

3 files changed, 11 insertions, 4 deletions

diff --git a/NEWS b/NEWS
index 7254aea3..8ff95f4d 100644
--- a/NEWS
+++ b/NEWS
@@ -44,6 +44,15 @@ be removed from a 6.4.0 or newer release.)
 
 fetchmail 6.3.X (not yet released, may become .8.1 or .9):
 
+# FIXES:
+* The configure script will additionally check for 'dn_skipname', to fix build
+  failures with µClibc. The new check still recognizes the resolver libraries on
+  Ubuntu 7.04, openSUSE 10.2, Solaris 8, NetBSD 3.0 and FreeBSD 6.2.
+  Fixes Gentoo bug #134187.
+  NOTE: this is a bit of a hack, since we twist the HAVE_RES_SEARCH result, but
+  res_search() and dn_skipname() are only used together and scheduled for
+  removal in future versions, so this is probably fine.
+
 # TRANSLATION UPDATES:
 * Polish (Jakub Bogusz)
 * Japanese (Takeshi Hamasaki)
diff --git a/TODO.txt b/TODO.txt
index f34970ca..2fe555c4 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -2,8 +2,6 @@ soon:
 - mark fetchmail -vvv in the FAQ
 - find a solution for the "invalid header" discards message problem
   (escape headers and stuff reminder into body)
-- use workaround for µClibc issue (extend configure.ac check)
-  https://bugs.gentoo.org/show_bug.cgi?id=134187
 - https://bugzilla.novell.com/show_bug.cgi?id=247233
   (same as http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=421446)
   might be our fallback of setting sslproto to ""? But what triggers it?
diff --git a/configure.ac b/configure.ac
index db381db3..efb6ba15 100644
--- a/configure.ac
+++ b/configure.ac
@@ -195,10 +195,10 @@ for lib in '' -lresolv; do
 #include <resolv.h>
 #endif
 extern int res_search();
-]], [[res_search(0, 0, 0, 0, 0);]])],
+]], [[res_search(0, 0, 0, 0, 0); dn_skipname(0,0);]])],
     [AC_MSG_RESULT([found])
      AC_DEFINE(HAVE_RES_SEARCH, [1],
-	       [Define to 1 if you have the 'res_search' function.])
+	       [Define to 1 if you have the 'res_search' and 'dn_skipname' functions.])
      break], [AC_MSG_RESULT([not found])])
      LIBS=$old_LIBS
 done