| #*************************************************************************** |
| # |
| # Copyright (C) 2008 - 2013 by Daniel Stenberg et al |
| # |
| # Permission to use, copy, modify, and distribute this software and its |
| # documentation for any purpose and without fee is hereby granted, provided |
| # that the above copyright notice appear in all copies and that both that |
| # copyright notice and this permission notice appear in supporting |
| # documentation, and that the name of M.I.T. not be used in advertising or |
| # publicity pertaining to distribution of the software without specific, |
| # written prior permission. M.I.T. makes no representations about the |
| # suitability of this software for any purpose. It is provided "as is" |
| # without express or implied warranty. |
| # |
| #*************************************************************************** |
| |
| # File version for 'aclocal' use. Keep it a single number. |
| # serial 11 |
| |
| |
| dnl CARES_CHECK_OPTION_CURLDEBUG |
| dnl ------------------------------------------------- |
| dnl Verify if configure has been invoked with option |
| dnl --enable-curldebug or --disable-curldebug, and set |
| dnl shell variable want_curldebug value as appropriate. |
| |
| AC_DEFUN([CARES_CHECK_OPTION_CURLDEBUG], [ |
| AC_BEFORE([$0],[CARES_CHECK_CURLDEBUG])dnl |
| AC_MSG_CHECKING([whether to enable curl debug memory tracking]) |
| OPT_CURLDEBUG_BUILD="default" |
| AC_ARG_ENABLE(curldebug, |
| AC_HELP_STRING([--enable-curldebug],[Enable curl debug memory tracking]) |
| AC_HELP_STRING([--disable-curldebug],[Disable curl debug memory tracking]), |
| OPT_CURLDEBUG_BUILD=$enableval) |
| case "$OPT_CURLDEBUG_BUILD" in |
| no) |
| dnl --disable-curldebug option used |
| want_curldebug="no" |
| ;; |
| default) |
| dnl configure option not specified |
| want_curldebug="no" |
| ;; |
| *) |
| dnl --enable-curldebug option used. |
| dnl The use of this option value is a request to enable curl's |
| dnl debug memory tracking for the c-ares library. This is a big |
| dnl hack that can only be done when a whole bunch of requisites |
| dnl are simultaneously satisfied. Later on, these requisites are |
| dnl verified and if they are not fully satisfied the option will |
| dnl be ignored and act as if --disable-curldebug had been given |
| dnl setting shell variable want_curldebug to 'no'. |
| want_curldebug="yes" |
| ;; |
| esac |
| AC_MSG_RESULT([$want_curldebug]) |
| ]) |
| |
| |
| dnl CARES_CHECK_OPTION_DEBUG |
| dnl ------------------------------------------------- |
| dnl Verify if configure has been invoked with option |
| dnl --enable-debug or --disable-debug, and set shell |
| dnl variable want_debug value as appropriate. |
| |
| AC_DEFUN([CARES_CHECK_OPTION_DEBUG], [ |
| AC_BEFORE([$0],[CARES_CHECK_OPTION_WARNINGS])dnl |
| AC_BEFORE([$0],[CARES_CHECK_OPTION_CURLDEBUG])dnl |
| AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl |
| AC_MSG_CHECKING([whether to enable debug build options]) |
| OPT_DEBUG_BUILD="default" |
| AC_ARG_ENABLE(debug, |
| AC_HELP_STRING([--enable-debug],[Enable debug build options]) |
| AC_HELP_STRING([--disable-debug],[Disable debug build options]), |
| OPT_DEBUG_BUILD=$enableval) |
| case "$OPT_DEBUG_BUILD" in |
| no) |
| dnl --disable-debug option used |
| want_debug="no" |
| ;; |
| default) |
| dnl configure option not specified |
| want_debug="no" |
| ;; |
| *) |
| dnl --enable-debug option used |
| want_debug="yes" |
| ;; |
| esac |
| AC_MSG_RESULT([$want_debug]) |
| ]) |
| |
| |
| dnl CARES_CHECK_OPTION_NONBLOCKING |
| dnl ------------------------------------------------- |
| dnl Verify if configure has been invoked with option |
| dnl --enable-nonblocking or --disable-nonblocking, and |
| dnl set shell variable want_nonblocking as appropriate. |
| |
| AC_DEFUN([CARES_CHECK_OPTION_NONBLOCKING], [ |
| AC_BEFORE([$0],[CARES_CHECK_NONBLOCKING_SOCKET])dnl |
| AC_MSG_CHECKING([whether to enable non-blocking communications]) |
| OPT_NONBLOCKING="default" |
| AC_ARG_ENABLE(nonblocking, |
| AC_HELP_STRING([--enable-nonblocking],[Enable non-blocking communications]) |
| AC_HELP_STRING([--disable-nonblocking],[Disable non-blocking communications]), |
| OPT_NONBLOCKING=$enableval) |
| case "$OPT_NONBLOCKING" in |
| no) |
| dnl --disable-nonblocking option used |
| want_nonblocking="no" |
| ;; |
| default) |
| dnl configure option not specified |
| want_nonblocking="yes" |
| ;; |
| *) |
| dnl --enable-nonblocking option used |
| want_nonblocking="yes" |
| ;; |
| esac |
| AC_MSG_RESULT([$want_nonblocking]) |
| ]) |
| |
| |
| dnl CARES_CHECK_OPTION_OPTIMIZE |
| dnl ------------------------------------------------- |
| dnl Verify if configure has been invoked with option |
| dnl --enable-optimize or --disable-optimize, and set |
| dnl shell variable want_optimize value as appropriate. |
| |
| AC_DEFUN([CARES_CHECK_OPTION_OPTIMIZE], [ |
| AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl |
| AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl |
| AC_MSG_CHECKING([whether to enable compiler optimizer]) |
| OPT_COMPILER_OPTIMIZE="default" |
| AC_ARG_ENABLE(optimize, |
| AC_HELP_STRING([--enable-optimize(=OPT)],[Enable compiler optimizations (default=-O2)]) |
| AC_HELP_STRING([--disable-optimize],[Disable compiler optimizations]), |
| OPT_COMPILER_OPTIMIZE=$enableval) |
| case "$OPT_COMPILER_OPTIMIZE" in |
| no) |
| dnl --disable-optimize option used. We will handle this as |
| dnl a request to disable compiler optimizations if possible. |
| dnl If the compiler is known CFLAGS and CPPFLAGS will be |
| dnl overridden, otherwise this can not be honored. |
| want_optimize="no" |
| AC_MSG_RESULT([no]) |
| ;; |
| default) |
| dnl configure's optimize option not specified. Initially we will |
| dnl handle this as a a request contrary to configure's setting |
| dnl for --enable-debug. IOW, initially, for debug-enabled builds |
| dnl this will be handled as a request to disable optimizations if |
| dnl possible, and for debug-disabled builds this will be handled |
| dnl initially as a request to enable optimizations if possible. |
| dnl Finally, if the compiler is known and CFLAGS and CPPFLAGS do |
| dnl not have any optimizer flag the request will be honored, in |
| dnl any other case the request can not be honored. |
| dnl IOW, existing optimizer flags defined in CFLAGS or CPPFLAGS |
| dnl will always take precedence over any initial assumption. |
| if test "$want_debug" = "yes"; then |
| want_optimize="assume_no" |
| AC_MSG_RESULT([not specified (assuming no)]) |
| else |
| want_optimize="assume_yes" |
| AC_MSG_RESULT([not specified (assuming yes)]) |
| fi |
| ;; |
| *) |
| dnl --enable-optimize option used. We will handle this as |
| dnl a request to enable compiler optimizations if possible. |
| dnl If the compiler is known CFLAGS and CPPFLAGS will be |
| dnl overridden, otherwise this can not be honored. |
| want_optimize="yes" |
| AC_MSG_RESULT([yes]) |
| ;; |
| esac |
| ]) |
| |
| |
| dnl CARES_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([CARES_CHECK_OPTION_SYMBOL_HIDING], [ |
| AC_BEFORE([$0],[CARES_CHECK_COMPILER_SYMBOL_HIDING])dnl |
| AC_MSG_CHECKING([whether to enable hiding of library internal symbols]) |
| OPT_SYMBOL_HIDING="default" |
| AC_ARG_ENABLE(symbol-hiding, |
| AC_HELP_STRING([--enable-symbol-hiding],[Enable hiding of library internal symbols]) |
| AC_HELP_STRING([--disable-symbol-hiding],[Disable hiding of library internal symbols]), |
| OPT_SYMBOL_HIDING=$enableval) |
| case "$OPT_SYMBOL_HIDING" in |
| no) |
| dnl --disable-symbol-hiding option used. |
| dnl This is an indication to not attempt hiding of library internal |
| dnl symbols. Default symbol visibility will be used, which normally |
| dnl exposes all library internal symbols. |
| want_symbol_hiding="no" |
| AC_MSG_RESULT([no]) |
| ;; |
| default) |
| dnl configure's symbol-hiding option not specified. |
| dnl Handle this as if --enable-symbol-hiding option was given. |
| want_symbol_hiding="yes" |
| AC_MSG_RESULT([yes]) |
| ;; |
| *) |
| dnl --enable-symbol-hiding option used. |
| dnl This is an indication to attempt hiding of library internal |
| dnl symbols. This is only supported on some compilers/linkers. |
| want_symbol_hiding="yes" |
| AC_MSG_RESULT([yes]) |
| ;; |
| esac |
| ]) |
| |
| |
| dnl CARES_CHECK_OPTION_EXPOSE_STATICS |
| dnl ------------------------------------------------- |
| dnl Verify if configure has been invoked with option |
| dnl --enable-expose-statics or --disable-expose-statics, |
| dnl setting shell variable want_expose_statics value. |
| |
| AC_DEFUN([CARES_CHECK_OPTION_EXPOSE_STATICS], [ |
| AC_MSG_CHECKING([whether to expose internal static functions for testing]) |
| OPT_EXPOSE_STATICS="default" |
| AC_ARG_ENABLE(expose-statics, |
| AC_HELP_STRING([--enable-expose-statics],[Enable exposure of internal static functions for testing]) |
| AC_HELP_STRING([--disable-expose-statics],[Disable exposure of internal static functions for testing]), |
| OPT_EXPOSE_STATICS=$enableval) |
| case "$OPT_EXPOSE_STATICS" in |
| no) |
| dnl --disable-expose-statics option used. |
| want_expose_statics="no" |
| AC_MSG_RESULT([no]) |
| ;; |
| default) |
| dnl configure's expose-statics option not specified. |
| dnl Handle this as if --disable-expose-statics option was given. |
| want_expose_statics="no" |
| AC_MSG_RESULT([no]) |
| ;; |
| *) |
| dnl --enable-expose-statics option used. |
| want_expose_statics="yes" |
| AC_MSG_RESULT([yes]) |
| ;; |
| esac |
| if test "$want_expose_statics" = "yes"; then |
| AC_DEFINE_UNQUOTED(CARES_EXPOSE_STATICS, 1, |
| [Defined for build that exposes internal static functions for testing.]) |
| fi |
| ]) |
| |
| |
| dnl CARES_CHECK_OPTION_WARNINGS |
| dnl ------------------------------------------------- |
| dnl Verify if configure has been invoked with option |
| dnl --enable-warnings or --disable-warnings, and set |
| dnl shell variable want_warnings as appropriate. |
| |
| AC_DEFUN([CARES_CHECK_OPTION_WARNINGS], [ |
| AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl |
| AC_BEFORE([$0],[CARES_CHECK_OPTION_WERROR])dnl |
| AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl |
| AC_MSG_CHECKING([whether to enable strict compiler warnings]) |
| OPT_COMPILER_WARNINGS="default" |
| AC_ARG_ENABLE(warnings, |
| AC_HELP_STRING([--enable-warnings],[Enable strict compiler warnings]) |
| AC_HELP_STRING([--disable-warnings],[Disable strict compiler warnings]), |
| OPT_COMPILER_WARNINGS=$enableval) |
| case "$OPT_COMPILER_WARNINGS" in |
| no) |
| dnl --disable-warnings option used |
| want_warnings="no" |
| ;; |
| default) |
| dnl configure option not specified, so |
| dnl use same setting as --enable-debug |
| want_warnings="$want_debug" |
| ;; |
| *) |
| dnl --enable-warnings option used |
| want_warnings="yes" |
| ;; |
| esac |
| AC_MSG_RESULT([$want_warnings]) |
| ]) |
| |
| dnl CARES_CHECK_OPTION_WERROR |
| dnl ------------------------------------------------- |
| dnl Verify if configure has been invoked with option |
| dnl --enable-werror or --disable-werror, and set |
| dnl shell variable want_werror as appropriate. |
| |
| AC_DEFUN([CARES_CHECK_OPTION_WERROR], [ |
| AC_BEFORE([$0],[CARES_CHECK_COMPILER])dnl |
| AC_MSG_CHECKING([whether to enable compiler warnings as errors]) |
| OPT_COMPILER_WERROR="default" |
| AC_ARG_ENABLE(werror, |
| AC_HELP_STRING([--enable-werror],[Enable compiler warnings as errors]) |
| AC_HELP_STRING([--disable-werror],[Disable compiler warnings as errors]), |
| OPT_COMPILER_WERROR=$enableval) |
| case "$OPT_COMPILER_WERROR" in |
| no) |
| dnl --disable-werror option used |
| want_werror="no" |
| ;; |
| default) |
| dnl configure option not specified |
| want_werror="no" |
| ;; |
| *) |
| dnl --enable-werror option used |
| want_werror="yes" |
| ;; |
| esac |
| AC_MSG_RESULT([$want_werror]) |
| ]) |
| |
| |
| dnl CARES_CHECK_NONBLOCKING_SOCKET |
| dnl ------------------------------------------------- |
| dnl Check for how to set a socket into non-blocking state. |
| |
| AC_DEFUN([CARES_CHECK_NONBLOCKING_SOCKET], [ |
| AC_REQUIRE([CARES_CHECK_OPTION_NONBLOCKING])dnl |
| AC_REQUIRE([CARES_CHECK_FUNC_FCNTL])dnl |
| AC_REQUIRE([CARES_CHECK_FUNC_IOCTL])dnl |
| AC_REQUIRE([CARES_CHECK_FUNC_IOCTLSOCKET])dnl |
| AC_REQUIRE([CARES_CHECK_FUNC_IOCTLSOCKET_CAMEL])dnl |
| AC_REQUIRE([CARES_CHECK_FUNC_SETSOCKOPT])dnl |
| # |
| tst_method="unknown" |
| if test "$want_nonblocking" = "yes"; then |
| AC_MSG_CHECKING([how to set a socket into non-blocking mode]) |
| if test "x$ac_cv_func_fcntl_o_nonblock" = "xyes"; then |
| tst_method="fcntl O_NONBLOCK" |
| elif test "x$ac_cv_func_ioctl_fionbio" = "xyes"; then |
| tst_method="ioctl FIONBIO" |
| elif test "x$ac_cv_func_ioctlsocket_fionbio" = "xyes"; then |
| tst_method="ioctlsocket FIONBIO" |
| elif test "x$ac_cv_func_ioctlsocket_camel_fionbio" = "xyes"; then |
| tst_method="IoctlSocket FIONBIO" |
| elif test "x$ac_cv_func_setsockopt_so_nonblock" = "xyes"; then |
| tst_method="setsockopt SO_NONBLOCK" |
| fi |
| AC_MSG_RESULT([$tst_method]) |
| if test "$tst_method" = "unknown"; then |
| AC_MSG_WARN([cannot determine non-blocking socket method.]) |
| fi |
| fi |
| if test "$tst_method" = "unknown"; then |
| AC_DEFINE_UNQUOTED(USE_BLOCKING_SOCKETS, 1, |
| [Define to disable non-blocking sockets.]) |
| AC_MSG_WARN([non-blocking sockets disabled.]) |
| fi |
| ]) |
| |
| |
| dnl CARES_CONFIGURE_SYMBOL_HIDING |
| dnl ------------------------------------------------- |
| dnl Depending on --enable-symbol-hiding or --disable-symbol-hiding |
| dnl configure option, and compiler capability to actually honor such |
| dnl option, this will modify compiler flags as appropriate and also |
| dnl provide needed definitions for configuration and Makefile.am files. |
| dnl This macro should not be used until all compilation tests have |
| dnl been done to prevent interferences on other tests. |
| |
| AC_DEFUN([CARES_CONFIGURE_SYMBOL_HIDING], [ |
| AC_MSG_CHECKING([whether hiding of library internal symbols will actually happen]) |
| CFLAG_CARES_SYMBOL_HIDING="" |
| doing_symbol_hiding="no" |
| if test x"$ac_cv_native_windows" != "xyes" && |
| test "$want_symbol_hiding" = "yes" && |
| test "$supports_symbol_hiding" = "yes"; then |
| doing_symbol_hiding="yes" |
| CFLAG_CARES_SYMBOL_HIDING="$symbol_hiding_CFLAGS" |
| AC_DEFINE_UNQUOTED(CARES_SYMBOL_SCOPE_EXTERN, $symbol_hiding_EXTERN, |
| [Definition to make a library symbol externally visible.]) |
| AC_MSG_RESULT([yes]) |
| else |
| AC_MSG_RESULT([no]) |
| fi |
| AM_CONDITIONAL(DOING_CARES_SYMBOL_HIDING, test x$doing_symbol_hiding = xyes) |
| AC_SUBST(CFLAG_CARES_SYMBOL_HIDING) |
| if test "$doing_symbol_hiding" = "yes"; then |
| AC_DEFINE_UNQUOTED(CARES_SYMBOL_HIDING, 1, |
| [Defined for build with symbol hiding.]) |
| fi |
| ]) |
| |