dnl Template file for GNU Autoconf dnl Copyright (C) 1995, 1996, 1997, 2001 Free Software Foundation, Inc. dnl This program is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 2 of the License, or dnl (at your option) any later version. dnl This program is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU General Public License for more details. dnl You should have received a copy of the GNU General Public License dnl along with this program; if not, write to the Free Software dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. dnl In addition, as a special exception, the Free Software Foundation dnl gives permission to link the code of its release of Wget with the dnl OpenSSL project's "OpenSSL" library (or with modified versions of it dnl that use the same license as the "OpenSSL" library), and distribute dnl the linked executables. You must obey the GNU General Public License dnl in all respects for all of the code used other than "OpenSSL". If you dnl modify this file, you may extend this exception to your version of the dnl file, but you are not obligated to do so. If you do not wish to do dnl so, delete this exception statement from your version. dnl dnl Process this file with autoconf to produce a configure script. dnl AC_INIT(src/version.c) AC_PREREQ(2.50) AC_CONFIG_HEADER(src/config.h) dnl dnl What version of Wget are we building? dnl VERSION=`sed -e 's/^.*"\(.*\)";$/\1/' ${srcdir}/src/version.c` echo "configuring for GNU Wget $VERSION" AC_SUBST(VERSION) PACKAGE=wget AC_SUBST(PACKAGE) dnl dnl Get cannonical host dnl AC_CANONICAL_HOST AC_DEFINE_UNQUOTED(OS_TYPE, "$host_os") dnl dnl Process features. dnl AC_ARG_WITH(socks, [ --with-socks use the socks library], [AC_DEFINE(HAVE_SOCKS)]) AC_ARG_WITH(ssl, [[ --with-ssl[=SSL-ROOT] link with SSL support [default=auto] --without-ssl disable SSL autodetection]]) AC_ARG_ENABLE(opie, [ --disable-opie disable support for opie or s/key FTP login], USE_OPIE=$enableval, USE_OPIE=yes) test x"${USE_OPIE}" = xyes && AC_DEFINE(USE_OPIE) AC_ARG_ENABLE(digest, [ --disable-digest disable support for HTTP digest authorization], USE_DIGEST=$enableval, USE_DIGEST=yes) test x"${USE_DIGEST}" = xyes && AC_DEFINE(USE_DIGEST) AC_ARG_ENABLE(debug, [ --disable-debug disable support for debugging output], ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes) test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE(ENABLE_DEBUG) wget_need_md5=no case "${USE_OPIE}${USE_DIGEST}" in *yes*) wget_need_md5=yes esac if test x"$USE_OPIE" = xyes; then OPIE_OBJ='ftp-opie$o' fi AC_SUBST(OPIE_OBJ) dnl dnl Whether make sets $(MAKE)... dnl AC_PROG_MAKE_SET dnl dnl Find a good install dnl AC_PROG_INSTALL dnl dnl Find the compiler dnl dnl We want these before the checks, so the checks can modify their values. test -z "$CFLAGS" && CFLAGS= auto_cflags=1 test -z "$CC" && cc_specified=yes AC_PROG_CC dnl dnl if the user hasn't specified CFLAGS, then dnl if compiler is gcc, then use -O2 and some warning flags dnl else use os-specific flags or -O dnl if test -n "$auto_cflags"; then if test -n "$GCC"; then CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit" else case "$host_os" in *hpux*) CFLAGS="$CFLAGS +O3" ;; *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;; *) CFLAGS="$CFLAGS -O" ;; esac fi fi dnl dnl Handle AIX dnl AC_AIX dnl dnl Configure our included libtool and make sure it's regenerated when needed dnl AC_PROG_LIBTOOL AC_SUBST(LIBTOOL_DEPS) dnl dnl In case of {cyg,gnu}win32. Should be a _target_ test. dnl Might also be erelevant for DJGPP. dnl case "$host_os" in *win32) exeext='.exe';; *) exeext='';; esac AC_SUBST(exeext) dnl dnl Check if we can handle prototypes. dnl AM_C_PROTOTYPES dnl dnl Checks for typedefs, structures, and compiler characteristics. dnl AC_C_CONST AC_C_INLINE AC_TYPE_SIZE_T AC_TYPE_PID_T AC_C_BIGENDIAN dnl dnl Check integral type sizes. dnl AC_CHECK_SIZEOF(short) AC_CHECK_SIZEOF(int) AC_CHECK_SIZEOF(long) AC_CHECK_SIZEOF(long long) AC_CHECK_HEADERS(inttypes.h) AC_CHECK_TYPES(uint32_t) dnl dnl Checks for headers dnl AC_CHECK_HEADERS(string.h stdarg.h unistd.h sys/time.h utime.h sys/utime.h pwd.h) AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h sys/utsname.h) AC_CHECK_HEADERS(signal.h setjmp.h) AC_HEADER_TIME dnl dnl Return type of signal-handlers dnl AC_TYPE_SIGNAL dnl dnl Call several of Wget's macros. dnl WGET_STRUCT_UTIMBUF WGET_SOCKLEN_T WGET_FNMATCH dnl dnl Checks for library functions. dnl AC_FUNC_ALLOCA AC_FUNC_MMAP AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove) AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf) AC_CHECK_FUNCS(select sigblock sigsetjmp signal symlink access isatty) AC_CHECK_FUNCS(uname gethostname usleep) dnl dnl Check if we need to compile in getopt.c. dnl AC_CHECK_FUNC(getopt_long, [], [ GETOPT_OBJ='getopt$o' ]) AC_SUBST(GETOPT_OBJ) dnl dnl Checks for libraries. dnl dnl On Solaris, -lnsl is needed to use gethostbyname. On "NCR MP-RAS dnl 3.0", however, gethostbyname is in libc, but -lnsl is still needed dnl to use -lsocket, as well as for functions such as inet_ntoa. We dnl look for such known offenders and if one of them is not found, we dnl check if -lnsl is needed. wget_check_in_nsl=NONE AC_CHECK_FUNCS(gethostbyname, [], [ wget_check_in_nsl=gethostbyname ]) AC_CHECK_FUNCS(inet_ntoa, [], [ wget_check_in_nsl=inet_ntoa ]) if test $wget_check_in_nsl != NONE; then AC_CHECK_LIB(nsl, $wget_check_in_nsl) fi AC_CHECK_LIB(socket, socket) dnl #### This appears to be deficient with later versions of SOCKS. if test "x${with_socks}" = xyes then AC_CHECK_LIB(resolv, main) AC_CHECK_LIB(socks, Rconnect) fi dnl $with_ssl can be one of: dnl - empty string or "auto", meaning autodetect SSL and use it if found. dnl - "yes", meaning link with SSL or bail out. dnl - "no", meaning don't link with SSL. dnl - anything else, meaning use that as the SSL root, and bail out dnl if it fails. if test x"$with_ssl" = x; then dnl Canonicalize unspecified with-ssl setting to "auto". This dnl implements the "auto-detect by default" feature. If you want to dnl change this to "ignore SSL by default", change "auto" to "no". with_ssl=auto fi dnl Detection of OpenSSL is much hairier than the detection of other dnl libraries because OpenSSL can be compiled as a third-party dnl library, which means it will not be found without additional dnl linker magic. It would be really nice to rework this check into dnl an AC_DEFUN so that we can reuse it for other third-party dnl libraries. if test x"$with_ssl" != x"no"; then wget_force_ssl=no if test x"$with_ssl" = x"yes"; then wget_force_ssl=yes fi if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then dnl OpenSSL's root was not specified, so we have to guess. First dnl try the system default location, then "/usr/local/ssl" (where dnl OpenSSL installs by default), then "/usr/local" (traditional dnl choice for installation root), then "/opt". ssl_all_roots="system-default /usr/local/ssl /usr/local /opt" else dnl Root has been specified by the user. ssl_all_roots=$with_ssl wget_force_ssl=yes fi wget_save_CC=$CC wget_save_LIBS=$LIBS wget_save_LDFLAGS=$LDFLAGS wget_save_CPPFLAGS=$CPPFLAGS dnl Use libtool for OpenSSL tests so we can specify "-R" dnl without having to know how the linker handles it. CC="$SHELL ./libtool $CC" dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto dnl shared library doesn't record its dependency on libdl, so we dnl need to check for it ourselves so we won't fail to link due to a dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses dnl shl_load(). AC_CHECK_LIB(dl,dlopen) AC_CHECK_LIB(dl,shl_load) ssl_success=no dnl Now try to find SSL libraries in each of the likely SSL roots. for ssl_root in $ssl_all_roots do if test x"$ssl_root" = x"system-default"; then dnl Try the default include and library locations. SSL_INCLUDES= else dnl Try this specific root. SSL_INCLUDES=-I$ssl_root/include dnl It's OK to use -R directly because libtool will dnl interpret it for us. LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS" fi AC_MSG_RESULT([Looking for SSL libraries in $ssl_root]) dnl Check whether the compiler can find the include files. On dnl some systems Gcc finds libraries in /usr/local/lib, but fails dnl to find the includes in /usr/local/include. ssl_found_includes=no CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS" AC_MSG_CHECKING([for includes]) AC_TRY_CPP([#include #include ], AC_MSG_RESULT(found); ssl_found_includes=yes, AC_MSG_RESULT([not found]) ) if test x"$ssl_found_includes" = xno; then continue fi ssl_link_failure=no dnl Make sure that the checks don't run afoul of the cache. It dnl would be nicer to temporarily turn off the cache, but dnl apparently Autoconf doesn't allow that. unset ac_cv_lib_crypto_RSA_new unset ac_cv_lib_ssl_SSL_new dnl These checks need to be in this order, or you'll get a link dnl failure if you use a static libcrypto.a and libssl.a rather dnl than shared libraries. AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes) AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes) if test x"$ssl_link_failure" = xyes; then dnl One or both libs failed to link. continue fi dnl The libraries link. But we still need to check if the program dnl linked with those libraries under these settings with run. On dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the dnl linking line, but fails to add -R/usr/local/lib, thus creating dnl executables that link, but fail to run. dnl If we are cross-compiling, just assume that working linkage dnl implies working executable. ssl_run_failure=no AC_MSG_CHECKING([whether SSL libs are resolved at runtime]) AC_TRY_RUN([ int RSA_new(); int SSL_new(); main(){return 0;} ], AC_MSG_RESULT(yes), AC_MSG_RESULT(no); ssl_run_failure=yes, AC_MSG_RESULT(cross) ) if test x"$ssl_run_failure" = xno; then ssl_success=yes break fi done if test x"$ssl_success" = xyes; then dnl AC_MSG_RESULT doesn't look right here, but I'm not sure what dnl to use instead. AC_MSG_RESULT([Compiling in support for SSL in $ssl_root]) AC_DEFINE(HAVE_SSL) AC_SUBST(SSL_INCLUDES) SSL_OBJ='gen_sslfunc$o' AC_SUBST(SSL_OBJ) else LDFLAGS=$wget_save_LDFLAGS LIBS=$wget_save_LIBS dnl If linking with SSL was forced rather than auto-detected, then dnl bail out if SSL failed. if test x"$wget_force_ssl" = x"yes"; then exec >&2 echo "ERROR: Failed to find OpenSSL libraries." exit 2 fi fi dnl Restore the compiler setting. CC=$wget_save_CC dnl Restore the CPPFLAGS. Do this regardless of whether linking dnl with SSL succeeded -- SSL includes will be handled using dnl @SSL_INCLUDES@. CPPFLAGS=$wget_save_CPPFLAGS fi dnl dnl Find an md5 implementation. dnl if test x"$wget_need_md5" = xyes then MD5_OBJ='gen-md5$o' found_md5=no dnl Check for the system MD5 library on Solaris. We don't check for dnl something simple like "MD5Update" because there are a number of dnl MD5 implementations that use that name. md5_calc is, hopefully, dnl specific to the Solaris MD5 library. if test x"$found_md5" = xno; then AC_CHECK_LIB(md5, md5_calc, [ dnl Some installations have bogus in the compiler's dnl include path, making the system md5 library useless. AC_MSG_CHECKING([whether md5.h can be included]) AC_COMPILE_IFELSE([#include ], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SOLARIS_MD5) LIBS="-lmd5 $LIBS" found_md5=yes AC_MSG_NOTICE([using the Solaris MD5 implementation]) ], [AC_MSG_RESULT(no)]) ]) fi dnl Then see if we're linking OpenSSL anyway; if yes, use its md5 dnl implementation. if test x"$found_md5" = xno; then if test x"$ssl_success" = xyes; then AC_DEFINE(HAVE_OPENSSL_MD5) found_md5=yes AC_MSG_NOTICE([using the OpenSSL MD5 implementation]) fi fi dnl If none of the above worked, use the one we ship with Wget. if test x"$found_md5" = xno; then AC_DEFINE(HAVE_BUILTIN_MD5) MD5_OBJ="$MD5_OBJ gnu-md5\$o" found_md5=yes AC_MSG_NOTICE([using the GNU MD5 implementation]) fi fi AC_DEFINE(HAVE_MD5) AC_SUBST(MD5_OBJ) dnl ********************************************************************** dnl Checks for IPv6 dnl ********************************************************************** ipv6= check_for_ipv6=no AC_ARG_ENABLE(ipv6, AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]), [case "${enable_ipv6}" in no) AC_MSG_NOTICE([Disabling IPv6 at user request]) ipv6=no ;; *) ipv6=yes ;; esac], [check_for_ipv6=no] ) if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then AC_CHECK_FUNCS(getaddrinfo,[ GETADDRINFO_AI_ADDRCONFIG( AC_DEFINE( [HAVE_GETADDRINFO_AI_ADDRCONFIG], 1, [Define if the system headers support the AI_ADDRCONFIG flag.] ) ) GETADDRINFO_AI_V4MAPPED( AC_DEFINE( [HAVE_GETADDRINFO_AI_V4MAPPED], 1, [Define if the system headers support the AI_V4MAPPED flag.] ) ) GETADDRINFO_AI_ALL( AC_DEFINE( [HAVE_GETADDRINFO_AI_ALL], 1, [Define if the system headers support the AI_ALL flag.] ) ) ],[ AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)]) ipv6=no ]) fi if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then PROTO_INET6(,[ AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family]) ipv6=no ]) fi if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then TYPE_STRUCT_SOCKADDR_IN6([ ipv6=yes ],[ AC_MSG_NOTICE([Disabling IPv6 support: your system does not support 'struct sockaddr_in6']) ipv6=no ]) if test "X$ipv6" = "Xyes"; then MEMBER_SIN6_SCOPE_ID fi fi if test "X$ipv6" = "Xyes"; then AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.]) fi dnl dnl Set of available languages. dnl ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')` dnl Originally this used to be static, looking like this: dnl ALL_LINGUAS="cs de hr it ..." dnl The downside was that configure needed to be rebuilt whenever a dnl new language was added. dnl internationalization macros WGET_WITH_NLS dnl dnl Find makeinfo. If makeinfo is not found, look for Emacs. If dnl Emacs cannot be found, look for XEmacs. dnl AC_CHECK_PROGS(MAKEINFO, makeinfo emacs xemacs) case "${MAKEINFO}" in *makeinfo) MAKEINFO="${MAKEINFO} \$(srcdir)/wget.texi" ;; *emacs | *xemacs) MAKEINFO="${MAKEINFO} -batch -q -no-site-file -eval '(find-file \"\$(srcdir)/wget.texi\")' -l texinfmt -f texinfo-format-buffer -f save-buffer" ;; *) MAKEINFO="makeinfo \$(srcdir)/wget.texi" ;; esac dnl dnl Find perl and pod2man dnl AC_PATH_PROGS(PERL, perl5 perl, no) AC_PATH_PROG(POD2MAN, pod2man, no) if test "x${POD2MAN}" = xno; then COMMENT_IF_NO_POD2MAN="# " else COMMENT_IF_NO_POD2MAN= fi AC_SUBST(COMMENT_IF_NO_POD2MAN) dnl dnl Create output dnl AC_OUTPUT([Makefile src/Makefile doc/Makefile util/Makefile po/Makefile.in windows/Makefile], [WGET_PROCESS_PO test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h])