diff options
Diffstat (limited to 'm4/curl-confopts.m4')
| -rw-r--r-- | m4/curl-confopts.m4 | 498 |
1 files changed, 498 insertions, 0 deletions
diff --git a/m4/curl-confopts.m4 b/m4/curl-confopts.m4 new file mode 100644 index 0000000..bb25bb9 --- /dev/null +++ b/m4/curl-confopts.m4 @@ -0,0 +1,498 @@ +#*************************************************************************** +# _ _ ____ _ +# Project ___| | | | _ \| | +# / __| | | | |_) | | +# | (__| |_| | _ <| |___ +# \___|\___/|_| \_\_____| +# +# 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 +# are also available at http://curl.haxx.se/docs/copyright.html. +# +# You may opt to use, copy, modify, merge, publish, distribute and/or sell +# copies of the Software, and permit persons to whom the Software is +# furnished to do so, under the terms of the COPYING file. +# +# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +# KIND, either express or implied. +# +#*************************************************************************** + +# File version for 'aclocal' use. Keep it a single number. +# serial 13 + +dnl CURL_CHECK_OPTION_THREADED_RESOLVER +dnl ------------------------------------------------- +dnl Verify if configure has been invoked with option +dnl --enable-threaded-resolver or --disable-threaded-resolver, and +dnl set shell variable want_thres as appropriate. + +AC_DEFUN([CURL_CHECK_OPTION_THREADED_RESOLVER], [ + AC_MSG_CHECKING([whether to enable the threaded resolver]) + OPT_THRES="default" + AC_ARG_ENABLE(threaded_resolver, +AC_HELP_STRING([--enable-threaded-resolver],[Enable threaded resolver]) +AC_HELP_STRING([--disable-threaded-resolver],[Disable threaded resolver]), + OPT_THRES=$enableval) + case "$OPT_THRES" in + yes) + dnl --enable-threaded-resolver option used + want_thres="yes" + ;; + *) + dnl configure option not specified + want_thres="no" + ;; + esac + AC_MSG_RESULT([$want_thres]) +]) + +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 "$OPT_ARES" in + no) + dnl --disable-ares option used + want_ares="no" + ;; + default) + dnl configure option not specified + want_ares="no" + ;; + *) + dnl --enable-ares option used + want_ares="yes" + if test -n "$enableval" && test "$enableval" != "yes"; then + want_ares_path="$enableval" + fi + ;; + esac + AC_MSG_RESULT([$want_ares]) +]) + + +dnl CURL_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([CURL_CHECK_OPTION_CURLDEBUG], [ + AC_BEFORE([$0],[CURL_CHECK_CURLDEBUG])dnl + AC_MSG_CHECKING([whether to enable curl debug memory tracking]) + OPT_CURLDEBUG_BUILD="default" + AC_ARG_ENABLE(curldebug, +AC_HELP_STRING([--enable-curldebug],[Enable curl debug memory tracking]) +AC_HELP_STRING([--disable-curldebug],[Disable curl debug memory tracking]), + OPT_CURLDEBUG_BUILD=$enableval) + case "$OPT_CURLDEBUG_BUILD" in + no) + dnl --disable-curldebug option used + want_curldebug="no" + AC_MSG_RESULT([no]) + ;; + default) + dnl configure's curldebug option not specified. Initially we will + dnl handle this as a a request to use the same setting as option + dnl --enable-debug. IOW, initially, for debug-enabled builds + dnl this will be handled as a request to enable curldebug if + dnl possible, and for debug-disabled builds this will be handled + dnl as a request to disable curldebug. + if test "$want_debug" = "yes"; then + AC_MSG_RESULT([(assumed) yes]) + else + AC_MSG_RESULT([no]) + fi + want_curldebug_assumed="yes" + want_curldebug="$want_debug" + ;; + *) + 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 libcurl library. This can only + dnl be done when some requisites are simultaneously satisfied. + dnl Later on, these requisites are verified and if they are not + dnl fully satisfied the option will be ignored and act as if + dnl --disable-curldebug had been given setting shell variable + dnl want_curldebug to 'no'. + want_curldebug="yes" + AC_MSG_RESULT([yes]) + ;; + esac +]) + + +dnl CURL_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([CURL_CHECK_OPTION_DEBUG], [ + AC_BEFORE([$0],[CURL_CHECK_OPTION_WARNINGS])dnl + AC_BEFORE([$0],[CURL_CHECK_OPTION_CURLDEBUG])dnl + AC_BEFORE([$0],[CURL_CHECK_PROG_CC])dnl + AC_MSG_CHECKING([whether to enable debug build options]) + OPT_DEBUG_BUILD="default" + AC_ARG_ENABLE(debug, +AC_HELP_STRING([--enable-debug],[Enable debug build options]) +AC_HELP_STRING([--disable-debug],[Disable debug build options]), + OPT_DEBUG_BUILD=$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 CURL_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([CURL_CHECK_OPTION_NONBLOCKING], [ + AC_BEFORE([$0],[CURL_CHECK_NONBLOCKING_SOCKET])dnl + AC_MSG_CHECKING([whether to enable non-blocking communications]) + OPT_NONBLOCKING="default" + AC_ARG_ENABLE(nonblocking, +AC_HELP_STRING([--enable-nonblocking],[Enable non-blocking communications]) +AC_HELP_STRING([--disable-nonblocking],[Disable non-blocking communications]), + OPT_NONBLOCKING=$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 CURL_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([CURL_CHECK_OPTION_OPTIMIZE], [ + AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl + AC_BEFORE([$0],[CURL_CHECK_PROG_CC])dnl + AC_MSG_CHECKING([whether to enable compiler optimizer]) + OPT_COMPILER_OPTIMIZE="default" + AC_ARG_ENABLE(optimize, +AC_HELP_STRING([--enable-optimize],[Enable compiler optimizations]) +AC_HELP_STRING([--disable-optimize],[Disable compiler optimizations]), + OPT_COMPILER_OPTIMIZE=$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([(assumed) no]) + else + want_optimize="assume_yes" + AC_MSG_RESULT([(assumed) 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 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 +dnl --enable-warnings or --disable-warnings, and set +dnl shell variable want_warnings as appropriate. + +AC_DEFUN([CURL_CHECK_OPTION_WARNINGS], [ + AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl + AC_BEFORE([$0],[CURL_CHECK_OPTION_WERROR])dnl + AC_BEFORE([$0],[CURL_CHECK_PROG_CC])dnl + AC_MSG_CHECKING([whether to enable strict compiler warnings]) + OPT_COMPILER_WARNINGS="default" + AC_ARG_ENABLE(warnings, +AC_HELP_STRING([--enable-warnings],[Enable strict compiler warnings]) +AC_HELP_STRING([--disable-warnings],[Disable strict compiler warnings]), + OPT_COMPILER_WARNINGS=$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 CURL_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([CURL_CHECK_OPTION_WERROR], [ + AC_BEFORE([$0],[CURL_CHECK_COMPILER])dnl + AC_MSG_CHECKING([whether to enable compiler warnings as errors]) + OPT_COMPILER_WERROR="default" + AC_ARG_ENABLE(werror, +AC_HELP_STRING([--enable-werror],[Enable compiler warnings as errors]) +AC_HELP_STRING([--disable-werror],[Disable compiler warnings as errors]), + OPT_COMPILER_WERROR=$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 CURL_CHECK_NONBLOCKING_SOCKET +dnl ------------------------------------------------- +dnl Check for how to set a socket into non-blocking state. + +AC_DEFUN([CURL_CHECK_NONBLOCKING_SOCKET], [ + AC_REQUIRE([CURL_CHECK_OPTION_NONBLOCKING])dnl + AC_REQUIRE([CURL_CHECK_FUNC_FCNTL])dnl + AC_REQUIRE([CURL_CHECK_FUNC_IOCTL])dnl + AC_REQUIRE([CURL_CHECK_FUNC_IOCTLSOCKET])dnl + AC_REQUIRE([CURL_CHECK_FUNC_IOCTLSOCKET_CAMEL])dnl + AC_REQUIRE([CURL_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 "$tst_method" = "unknown"; then + AC_DEFINE_UNQUOTED(USE_BLOCKING_SOCKETS, 1, + [Define to disable non-blocking sockets.]) + AC_MSG_WARN([non-blocking sockets disabled.]) + fi +]) + + +dnl CURL_CHECK_LIB_ARES +dnl ------------------------------------------------- +dnl When c-ares library support has been requested, +dnl performs necessary checks and adjustsments needed +dnl to enable support of this library. + +AC_DEFUN([CURL_CHECK_LIB_ARES], [ + # + if test "$want_ares" = "yes"; then + dnl c-ares library support has been requested + clean_CPPFLAGS="$CPPFLAGS" + clean_LDFLAGS="$LDFLAGS" + clean_LIBS="$LIBS" + embedded_ares="unknown" + configure_runpath=`pwd` + embedded_ares_builddir="$configure_runpath/ares" + if test -n "$want_ares_path"; then + dnl c-ares library path has been specified + ares_CPPFLAGS="-I$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 */ + ares_dup(&channel, channel); /* added in 1.6.0 */ + ]]) + ],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_ERROR([c-ares library defective or too old]) + dnl restore initial settings + CPPFLAGS="$clean_CPPFLAGS" + LDFLAGS="$clean_LDFLAGS" + 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_res_msg="c-ares" + fi + fi +]) + |