X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=adns.git;a=blobdiff_plain;f=configure.in;h=3e72caddfba00b64c231acb34a0fea257dd0f22c;hp=b21404022c592d1af3a2b86cf29c428237438794;hb=64aae7c863f6e38cecc3cd6d5054f272e13852e8;hpb=849075a00676ad04776f4fe3902e23cc2d8f70a3

diff --git a/configure.in b/configure.in
index b214040..3e72cad 100644
--- a/configure.in
+++ b/configure.in
@@ -1,11 +1,10 @@
 # configure.in - input to autoconf
 #  
-#  This file is
-#    Copyright (C) 1997-2000 Ian Jackson <ian@davenant.greenend.org.uk>
-#
-#  It is part of adns, which is
-#    Copyright (C) 1997-2005 Ian Jackson <ian@davenant.greenend.org.uk>
-#    Copyright (C) 1999-2004 Tony Finch <dot@dotat.at>
+#  This file is part of adns, which is
+#    Copyright (C) 1997-2000,2003,2006  Ian Jackson
+#    Copyright (C) 1999-2000,2003,2006  Tony Finch
+#    Copyright (C) 1991 Massachusetts Institute of Technology
+#  (See the file INSTALL for full details.)
 #  
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -25,7 +24,7 @@ AC_INIT(src/adns.h)
 AC_CONFIG_HEADER(src/config.h)
 
 dnl DPKG_CACHED_TRY_COMPILE(<description>,<cachevar>,<include>,<program>,<ifyes>,<ifno>)
-define(DPKG_CACHED_TRY_COMPILE,[
+define([DPKG_CACHED_TRY_COMPILE],[
  AC_MSG_CHECKING($1)
  AC_CACHE_VAL($2,[
   AC_TRY_COMPILE([$3],[$4],[$2=yes],[$2=no])
@@ -112,16 +111,24 @@ DPKG_CACHED_TRY_COMPILE(inlines,dpkg_cv_c_inline,,
  AC_DEFINE(HAVE_INLINE),
  AC_MSG_RESULT(no))
 
-ADNS_C_GCCATTRIB
-
 AC_SUBST(WARNS)
 
 if test "${GCC-no}" = yes; then
 	WARNS="-Wall -Wmissing-prototypes -Wwrite-strings -Wstrict-prototypes -Wcast-qual -Wpointer-arith"
+	saved_cflags="$CFLAGS"
+	CFLAGS="$CFLAGS -Wno-pointer-sign"
+	DPKG_CACHED_TRY_COMPILE(-Wno-pointer-sign,adns_cv_c_wnoptrsign,,
+	 [],
+	 AC_MSG_RESULT(yes)
+	 WARNS="$WARNS -Wno-pointer-sign",
+	 AC_MSG_RESULT(no))
+	CFLAGS="$saved_cflags"
 else
 	WARNS=
 fi
 
+ADNS_C_GCCATTRIB
+
 AC_SUBST(SHLIBCC)
 AC_SUBST(MKSHLIB_1)
 AC_SUBST(MKSHLIB_2)