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authorYang Tse <yangsita@gmail.com>2010-01-26 15:07:40 +0000
committerYang Tse <yangsita@gmail.com>2010-01-26 15:07:40 +0000
commit22ed0f50594864942c767043de1ac56bb0592155 (patch)
treeffc76efe66b38aea6ce50b7797c86b38f5956e1f /m4/curl-confopts.m4
parent9bc897f380423f40bc9e5f22c12c670f5a28a369 (diff)
downloadcurl-22ed0f50594864942c767043de1ac56bb0592155.tar.gz
minor fixes for --enable-ares configure option
Diffstat (limited to 'm4/curl-confopts.m4')
-rw-r--r--m4/curl-confopts.m4179
1 files changed, 174 insertions, 5 deletions
diff --git a/m4/curl-confopts.m4 b/m4/curl-confopts.m4
index 3ae73785f..ec58a47f8 100644
--- a/m4/curl-confopts.m4
+++ b/m4/curl-confopts.m4
@@ -5,7 +5,7 @@
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
-# Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
+# Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
@@ -22,7 +22,43 @@
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
-# serial 6
+# serial 7
+
+
+dnl CURL_CHECK_OPTION_ARES
+dnl -------------------------------------------------
+dnl Verify if configure has been invoked with option
+dnl --enable-ares or --disable-ares, and
+dnl set shell variable want_ares as appropriate.
+
+AC_DEFUN([CURL_CHECK_OPTION_ARES], [
+dnl AC_BEFORE([$0],[CURL_CHECK_OPTION_THREADS])dnl
+ AC_BEFORE([$0],[CURL_CHECK_LIB_ARES])dnl
+ AC_MSG_CHECKING([whether to enable c-ares for DNS lookups])
+ OPT_ARES="default"
+ AC_ARG_ENABLE(ares,
+AC_HELP_STRING([--enable-ares@<:@=PATH@:>@],[Enable c-ares for DNS lookups])
+AC_HELP_STRING([--disable-ares],[Disable c-ares for DNS lookups]),
+ OPT_ARES=$enableval)
+ case "$OPT_ARES" in
+ no)
+ dnl --disable-ares option used
+ want_ares="no"
+ AC_MSG_RESULT([no])
+ ;;
+ default)
+ dnl configure option not specified
+ want_ares="assume_yes"
+ AC_MSG_RESULT([(assumed) yes])
+ ;;
+ *)
+ dnl --enable-ares option used
+ want_ares="yes"
+ want_ares_path="$enableval"
+ AC_MSG_RESULT([yes])
+ ;;
+ esac
+])
dnl CURL_CHECK_OPTION_CURLDEBUG
@@ -53,7 +89,7 @@ AC_HELP_STRING([--disable-curldebug],[Disable curl debug memory tracking]),
dnl possible, and for debug-disabled builds this will be handled
dnl as a request to disable curldebug.
if test "$want_debug" = "yes"; then
- AC_MSG_RESULT([not specified (assuming yes)])
+ AC_MSG_RESULT([(assumed) yes])
else
AC_MSG_RESULT([no])
fi
@@ -180,10 +216,10 @@ AC_HELP_STRING([--disable-optimize],[Disable compiler optimizations]),
dnl will always take precedence over any initial assumption.
if test "$want_debug" = "yes"; then
want_optimize="assume_no"
- AC_MSG_RESULT([not specified (assuming no)])
+ AC_MSG_RESULT([(assumed) no])
else
want_optimize="assume_yes"
- AC_MSG_RESULT([not specified (assuming yes)])
+ AC_MSG_RESULT([(assumed) yes])
fi
;;
*)
@@ -198,6 +234,54 @@ AC_HELP_STRING([--disable-optimize],[Disable compiler optimizations]),
])
+dnl CURL_CHECK_OPTION_THREADS
+dnl -------------------------------------------------
+dnl Verify if configure has been invoked with option
+dnl --enable-threads or --disable-threads, and
+dnl set shell variable want_threads as appropriate.
+
+dnl AC_DEFUN([CURL_CHECK_OPTION_THREADS], [
+dnl AC_BEFORE([$0],[CURL_CHECK_LIB_THREADS])dnl
+dnl AC_MSG_CHECKING([whether to enable threads for DNS lookups])
+dnl OPT_THREADS="default"
+dnl AC_ARG_ENABLE(threads,
+dnl AC_HELP_STRING([--enable-threads@<:@=PATH@:>@],[Enable threads for DNS lookups])
+dnl AC_HELP_STRING([--disable-threads],[Disable threads for DNS lookups]),
+dnl OPT_THREADS=$enableval)
+dnl case "$OPT_THREADS" in
+dnl no)
+dnl dnl --disable-threads option used
+dnl want_threads="no"
+dnl AC_MSG_RESULT([no])
+dnl ;;
+dnl default)
+dnl dnl configure option not specified
+dnl want_threads="no"
+dnl AC_MSG_RESULT([(assumed) no])
+dnl ;;
+dnl *)
+dnl dnl --enable-threads option used
+dnl want_threads="yes"
+dnl want_threads_path="$enableval"
+dnl AC_MSG_RESULT([yes])
+dnl ;;
+dnl esac
+dnl #
+dnl if test "$want_ares" = "assume_yes"; then
+dnl if test "$want_threads" = "yes"; then
+dnl AC_MSG_CHECKING([whether to ignore c-ares enabling assumed setting])
+dnl AC_MSG_RESULT([yes])
+dnl want_ares="no"
+dnl else
+dnl want_ares="yes"
+dnl fi
+dnl fi
+dnl if test "$want_threads" = "yes" && test "$want_ares" = "yes"; then
+dnl AC_MSG_ERROR([options --enable-ares and --enable-threads are mutually exclusive, at most one may be enabled.])
+dnl fi
+dnl ])
+
+
dnl CURL_CHECK_OPTION_WARNINGS
dnl -------------------------------------------------
dnl Verify if configure has been invoked with option
@@ -270,3 +354,88 @@ AC_DEFUN([CURL_CHECK_NONBLOCKING_SOCKET], [
fi
])
+
+dnl CURL_CHECK_LIB_ARES
+dnl -------------------------------------------------
+dnl When c-ares library support has been requested,
+dnl performs necessary checks and adjustsments needed
+dnl to enable support of this library.
+
+AC_DEFUN([CURL_CHECK_LIB_ARES], [
+ #
+ if test "$want_ares" = "yes"; then
+ dnl c-ares library support has been requested
+ clean_CPPFLAGS="$CPPFLAGS"
+ clean_CFLAGS="$CFLAGS"
+ clean_LIBS="$LIBS"
+ embedded_ares="unknown"
+ configure_runpath=`pwd`
+ embedded_ares_builddir="$configure_runpath/ares"
+ if test -n "$want_ares_path" && test "$want_ares_path" != "yes"; then
+ dnl c-ares library path has been specified
+ ares_CPPFLAGS="-I$want_ares_path/include"
+ ares_LDFLAGS="-L$want_ares_path/lib"
+ ares_LIBS="-lcares"
+ else
+ dnl c-ares library path has not been given
+ if test -d "$srcdir/ares"; then
+ dnl c-ares sources embedded in curl tree
+ embedded_ares="yes"
+ AC_CONFIG_SUBDIRS(ares)
+ dnl c-ares has installable configured header files, path
+ dnl inclusion fully done in makefiles for in-tree builds.
+ ares_CPPFLAGS=""
+ ares_LDFLAGS="-L$embedded_ares_builddir"
+ ares_LIBS="-lcares"
+ else
+ dnl c-ares path not specified, use defaults
+ ares_CPPFLAGS=""
+ ares_LDFLAGS=""
+ ares_LIBS="-lcares"
+ fi
+ fi
+ #
+ CPPFLAGS="$ares_CPPFLAGS $clean_CPPFLAGS"
+ LDFLAGS="$ares_LDFLAGS $clean_LDFLAGS"
+ LIBS="$ares_LIBS $clean_LIBS"
+ #
+ if test "$embedded_ares" != "yes"; then
+ dnl check if c-ares new enough when not using an embedded
+ dnl source tree one which normally has not been built yet.
+ AC_MSG_CHECKING([that c-ares is good and recent enough])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+#include <ares.h>
+ /* set of dummy functions in case c-ares was built with debug */
+ void curl_dofree() { }
+ void curl_sclose() { }
+ void curl_domalloc() { }
+ void curl_docalloc() { }
+ void curl_socket() { }
+ ]],[[
+ ares_channel channel;
+ ares_cancel(channel); /* added in 1.2.0 */
+ ares_process_fd(channel, 0, 0); /* added in 1.4.0 */
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ ],[
+ AC_MSG_RESULT([no])
+ AC_MSG_ERROR([c-ares library defective or too old])
+ dnl restore initial settings
+ CPPFLAGS="$clean_CPPFLAGS"
+ CFLAGS="$clean_CFLAGS"
+ LIBS="$clean_LIBS"
+ # prevent usage
+ want_ares="no"
+ ])
+ fi
+ if test "$want_ares" = "yes"; then
+ dnl finally c-ares will be used
+ AC_DEFINE(USE_ARES, 1, [Define to enable c-ares support])
+ AC_SUBST([USE_ARES], [1])
+ curl_ares_msg="enabled"
+ fi
+ fi
+])
+