@@ -5,7 +5,7 @@
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2011 , Daniel Stenberg, <daniel@haxx.se>, et al.
# Copyright (C) 1998 - 2012 , 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
@@ -21,7 +21,7 @@
# ***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
# serial 16
# serial 17
dnl CURL_CHECK_OPTION_THREADED_RESOLVER
dnl -------------------------------------------------
@@ -258,6 +258,50 @@ AC_HELP_STRING([--disable-optimize],[Disable compiler optimizations]),
] )
dnl CURL_CHECK_OPTION_SYMBOL_HIDING
dnl -------------------------------------------------
dnl Verify if configure has been invoked with option
dnl --enable-symbol-hiding or --disable-symbol-hiding,
dnl setting shell variable want_symbol_hiding value.
AC_DEFUN ( [ CURL_CHECK_OPTION_SYMBOL_HIDING] [
AC_BEFORE ( [ $0 ] [ CURL_CHECK_COMPILER_SYMBOL_HIDING] ) dnl
AC_MSG_CHECKING ( [ whether to enable hiding of library internal symbols] )
OPT_SYMBOL_HIDING="default"
AC_ARG_ENABLE ( symbol-hiding ,
AC_HELP_STRING ( [ --enable-symbol-hiding] [ Enable hiding of library internal symbols] )
AC_HELP_STRING ( [ --disable-symbol-hiding] [ Disable hiding of library internal symbols] ) ,
OPT_SYMBOL_HIDING=$enableval )
AC_ARG_ENABLE ( hidden-symbols ,
AC_HELP_STRING ( [ --enable-hidden-symbols] [ To be deprecated, use --enable-symbol-hiding] )
AC_HELP_STRING ( [ --disable-hidden-symbols] [ To be deprecated, use --disable-symbol-hiding] ) ,
OPT_SYMBOL_HIDING=$enableval )
case "$OPT_SYMBOL_HIDING" in
no)
dnl --disable-symbol-hiding option used.
dnl This is an indication to not attempt hiding of library internal
dnl symbols. Default symbol visibility will be used, which normally
dnl exposes all library internal symbols.
want_symbol_hiding="no"
AC_MSG_RESULT ( [ no] )
;;
default)
dnl configure's symbol-hiding option not specified.
dnl Handle this as if --enable-symbol-hiding option was given.
want_symbol_hiding="yes"
AC_MSG_RESULT ( [ yes] )
;;
*)
dnl --enable-symbol-hiding option used.
dnl This is an indication to attempt hiding of library internal
dnl symbols. This is only supported on some compilers/linkers.
want_symbol_hiding="yes"
AC_MSG_RESULT ( [ yes] )
;;
esac
] )
dnl CURL_CHECK_OPTION_THREADS
dnl -------------------------------------------------
dnl Verify if configure has been invoked with option
@@ -411,6 +455,35 @@ AC_DEFUN([CURL_CHECK_NONBLOCKING_SOCKET], [
] )
dnl CURL_CONFIGURE_SYMBOL_HIDING
dnl -------------------------------------------------
dnl Depending on --enable-symbol-hiding or --disable-symbol-hiding
dnl configure option, and compiler capability to actually honor such
dnl option, this will modify compiler flags as appropriate and also
dnl provide needed definitions for configuration and Makefile.am files.
dnl This macro should not be used until all compilation tests have
dnl been done to prevent interferences on other tests.
AC_DEFUN ( [ CURL_CONFIGURE_SYMBOL_HIDING] [
AC_MSG_CHECKING ( [ whether hiding of library internal symbols will actually happen] )
CFLAG_SYMBOL_HIDING=""
doing_symbol_hiding="no"
if test x"$ac_cv_native_windows" != "xyes" &&
test "$want_symbol_hiding" = "yes" &&
test "$supports_symbol_hiding" = "yes"; then
doing_symbol_hiding="yes"
CFLAG_SYMBOL_HIDING="$symbol_hiding_CFLAGS"
AC_DEFINE_UNQUOTED ( CURL_EXTERN_SYMBOL , $symbol_hiding_EXTERN ,
[ Definition to make a library symbol externally visible.] )
AC_MSG_RESULT ( [ yes] )
else
AC_MSG_RESULT ( [ no] )
fi
AM_CONDITIONAL(DOING_SYMBOL_HIDING, test x$doing_symbol_hiding = xyes)
AC_SUBST ( CFLAG_SYMBOL_HIDING )
] )
dnl CURL_CHECK_LIB_ARES
dnl -------------------------------------------------
dnl When c-ares library support has been requested,