/
configure.ac
454 lines (422 loc) · 15.6 KB
/
configure.ac
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AC_INIT(openconnect, 3.20)
PKG_PROG_PKG_CONFIG
AC_LANG_C
AC_CANONICAL_HOST
AM_MAINTAINER_MODE([enable])
AM_INIT_AUTOMAKE([foreign])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
# Define htmldir and localedir for users of ancient autoconf building from git
AC_PREREQ([2.59c], [], [AC_SUBST([htmldir], [m4_ifset([AC_PACKAGE_TARNAME],
['${datadir}/doc/${PACKAGE_TARNAME}'],
['${datadir}/doc/${PACKAGE}'])
])])
AC_PREREQ([2.60], [], [AC_SUBST([localedir], ['$(datadir)/locale'])])
# Upstream's pkg.m4 (since 0.27) offers this now, but define our own
# compatible version in case the local version of pkgconfig isn't new enough.
# https://bugs.freedesktop.org/show_bug.cgi?id=48743
m4_ifdef([PKG_INSTALLDIR], [PKG_INSTALLDIR],
[AC_ARG_WITH([pkgconfigdir],
[AS_HELP_STRING([--with-pkgconfigdir],
[install directory for openconnect.pc pkg-config file])],
[],[with_pkgconfigdir='$(libdir)/pkgconfig'])
AC_SUBST([pkgconfigdir], [${with_pkgconfigdir}])])
AC_ARG_WITH([vpnc-script],
[AS_HELP_STRING([--with-vpnc-script],
[default location of vpnc-script helper])])
if test "$with_vpnc_script" = "yes" || test "$with_vpnc_script" = ""; then
with_vpnc_script=/etc/vpnc/vpnc-script
if ! test -x "$with_vpnc_script"; then
AC_MSG_ERROR([${with_vpnc_script} does not seem to be executable.]
[OpenConnect will not function correctly without a vpnc-script.]
[See http://www.infradead.org/openconnect/vpnc-script.html for more details.]
[]
[If you are building a distribution package, please ensure that your]
[packaging is correct, and that a vpnc-script will be installed when the]
[user installs your package. You should provide a --with-vpnc-script=]
[argument to this configure script, giving the full path where the script]
[will be installed.]
[]
[The standard location is ${with_vpnc_script}. To bypass this error and]
[build OpenConnect to use the script from this location, even though it's]
[not present at the time you are building OpenConnect, pass the argument]
["--with-vpnc-script=${with_vpnc_script}"])
fi
elif test "$with_vpnc_script" = "no"; then
AC_ERROR([You cannot disable vpnc-script.]
[OpenConnect will not function correctly without it.]
[See http://www.infradead.org/openconnect/vpnc-script.html])
fi
AC_DEFINE_UNQUOTED(DEFAULT_VPNCSCRIPT, "${with_vpnc_script}")
AC_SUBST(DEFAULT_VPNCSCRIPT, "${with_vpnc_script}")
case $host_os in
*linux* | *gnu*)
AC_MSG_NOTICE([Applying feature macros for GNU build])
AC_DEFINE(_POSIX_C_SOURCE, 200112L)
# For strcasecmp()
AC_DEFINE(_BSD_SOURCE)
# For asprintf()
AC_DEFINE(_GNU_SOURCE)
;;
*netbsd*)
AC_MSG_NOTICE([Applying feature macros for NetBSD build])
AC_DEFINE(_POSIX_C_SOURCE, 200112L)
AC_DEFINE(_NETBSD_SOURCE)
;;
*)
# On FreeBSD the only way to get vsyslog() visible is to define
# *nothing*, which makes absolutely everything visible.
# On Darwin enabling _POSIX_C_SOURCE breaks <sys/mount.h> because
# u_long and other types don't get defined. OpenBSD is similar.
;;
esac
symver_time=
symver_getline=
symver_asprintf=
case $host_os in
*solaris*|*sunos*)
symver_time="openconnect__time;"
;;
esac
AC_CHECK_FUNC(fdevname_r, [AC_DEFINE(HAVE_FDEVNAME_R, 1)], [])
AC_CHECK_FUNC(getline, [AC_DEFINE(HAVE_GETLINE, 1)], [symver_getline="openconnect__getline;"])
AC_CHECK_FUNC(strcasestr, [AC_DEFINE(HAVE_STRCASESTR, 1)], [])
AC_CHECK_FUNC(asprintf, [AC_DEFINE(HAVE_ASPRINTF, 1)], [symver_asprintf="openconnect__asprintf;"])
if test -n "$symver_asprintf"; then
AC_MSG_CHECKING([for va_copy])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <stdarg.h>
va_list a;],[
va_list b;
va_copy(b,a);
va_end(b);])],
[AC_DEFINE(HAVE_VA_COPY, 1)
AC_MSG_RESULT(va_copy)],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <stdarg.h>
va_list a;],[
va_list b;
__va_copy(b,a);
va_end(b);])],
[AC_DEFINE(HAVE___VA_COPY, 1)
AC_MSG_RESULT(__va_copy)],
[AC_MSG_RESULT(no)
AC_MSG_ERROR([Your system lacks asprintf() and va_copy()])])
])
fi
AC_SUBST(SYMVER_TIME, $symver_time)
AC_SUBST(SYMVER_GETLINE, $symver_getline)
AC_SUBST(SYMVER_ASPRINTF, $symver_asprintf)
AS_COMPILER_FLAGS(CFLAGS,
"-Wall
-Wextra
-Wno-missing-field-initializers
-Wno-sign-compare
-Wno-unused-parameter
-Werror=pointer-to-int-cast
-Wdeclaration-after-statement
-Werror-implicit-function-declaration
-Wformat-nonliteral
-Wformat-security
-Winit-self
-Wmissing-declarations
-Wmissing-include-dirs
-Wnested-externs
-Wpointer-arith
-Wwrite-strings")
AC_ENABLE_SHARED
AC_DISABLE_STATIC
AC_ARG_ENABLE([nls],
[ --disable-nls do not use Native Language Support],
[USE_NLS=$enableval], [USE_NLS=yes])
LIBINTL=
if test "$USE_NLS" = "yes"; then
AC_PATH_PROG(MSGFMT, msgfmt)
if test "$MSGFMT" = ""; then
AC_ERROR([msgfmt could not be found. Try configuring with --disable-nls])
fi
fi
LIBINTL=
if test "$USE_NLS" = "yes"; then
AC_MSG_CHECKING([for functional NLS support])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <locale.h>
#include <libintl.h>],[
setlocale(LC_ALL, "");
bindtextdomain("openconnect", "/tmp");
(void)dgettext("openconnect", "foo");])],
[AC_MSG_RESULT(yes)],
[oldLIBS="$LIBS"
LIBS="$LIBS -lintl"
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <locale.h>
#include <libintl.h>],[
setlocale(LC_ALL, "");
bindtextdomain("openconnect", "/tmp");
(void)dgettext("openconnect", "foo");])],
[AC_MSG_RESULT(yes (with -lintl))]
LIBINTL="-lintl",
[AC_MSG_RESULT(no)
USE_NLS=no])
LIBS="$oldLIBS"])
fi
if test "$USE_NLS" = "yes"; then
AC_SUBST(LIBINTL)
AC_DEFINE(ENABLE_NLS, 1)
fi
AM_CONDITIONAL(USE_NLS, [test "$USE_NLS" = "yes"])
# We will use GnuTLS if it's requested, and if GnuTLS doesn't have DTLS
# support then we'll *also* use OpenSSL for that, but it appears *only*
# only in the openconnect executable and not the library (hence shouldn't
# be a problem for GPL'd programs using libopenconnect).
#
# If built with --with-gnutls --without-openssl then we'll even eschew
# OpenSSL for DTLS support and will build without any DTLS support at all
# if GnuTLS cannot manage.
#
# The default (for now) is to use OpenSSL for everything.
AC_ARG_WITH([gnutls],
AS_HELP_STRING([--with-gnutls],
[Use GnuTLS instead of OpenSSL (EXPERIMENTAL)]))
AC_ARG_WITH([openssl],
AS_HELP_STRING([--with-openssl],
[Location of OpenSSL build dir]))
ssl_library=
if test "$with_gnutls" = "yes"; then
PKG_CHECK_MODULES(GNUTLS, gnutls)
if ! $PKG_CONFIG --atleast-version=2.12.16 gnutls; then
AC_MSG_ERROR([Your GnuTLS is too old. At least v2.12.16 is required])
fi
oldlibs="$LIBS"
LIBS="$LIBS $GNUTLS_LIBS"
AC_CHECK_FUNC(gnutls_certificate_set_x509_system_trust,
[AC_DEFINE(HAVE_GNUTLS_CERTIFICATE_SET_X509_SYSTEM_TRUST, 1)], [])
AC_CHECK_FUNC(gnutls_pkcs12_simple_parse,
[AC_DEFINE(HAVE_GNUTLS_PKCS12_SIMPLE_PARSE, 1)], [])
AC_CHECK_FUNC(gnutls_certificate_set_key,
[AC_DEFINE(HAVE_GNUTLS_CERTIFICATE_SET_KEY, 1)], [])
if test "$with_openssl" = "" || test "$with_openssl" = "no"; then
AC_CHECK_FUNC(gnutls_session_set_premaster,
[have_gnutls_dtls=yes], [have_gnutls_dtls=no])
else
have_gnutls_dtls=no
fi
if test "$have_gnutls_dtls" = "yes"; then
if test "$with_openssl" = "" || test "$with_openssl" = "no"; then
# They either said no OpenSSL or didn't specify, and GnuTLS can
# do DTLS, so just use GnuTLS.
AC_DEFINE(HAVE_GNUTLS_SESSION_SET_PREMASTER, 1)
ssl_library=gnutls
with_openssl=no
else
# They specifically asked for OpenSSL, so use it for DTLS even
# though GnuTLS could manage.
ssl_library=both
fi
else
if test "$with_openssl" = "no"; then
# GnuTLS doesn't have DTLS, but they don't want OpenSSL. So build
# without DTLS support at all.
ssl_library=gnutls
else
# GnuTLS doesn't have DTLS so use OpenSSL for it, but GnuTLS for
# the TCP connection (and thus in the library).
ssl_library=both
fi
fi
AC_CHECK_FUNC(gnutls_pkcs11_add_provider,
[PKG_CHECK_MODULES(P11KIT, p11-kit-1, [AC_DEFINE(HAVE_P11KIT)
AC_SUBST(P11KIT_PC, p11-kit-1)], [:])], [])
LIBS="$oldLIBS"
elif test "$with_gnutls" != "" && test "$with_gnutls" != "no"; then
AC_MSG_ERROR([Values other than 'yes' or 'no' for --with-gnutls are not supported])
fi
if test "$with_openssl" = "yes" || test "$with_openssl" = "" || test "$ssl_library" = "both"; then
PKG_CHECK_MODULES(OPENSSL, openssl, [],
[oldLIBS="$LIBS"
LIBS="$LIBS -lssl -lcrypto"
AC_MSG_CHECKING([for OpenSSL without pkg-config])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <openssl/ssl.h>
#include <openssl/err.h>],[
SSL_library_init();
ERR_clear_error();
SSL_load_error_strings();
OpenSSL_add_all_algorithms();])],
[AC_MSG_RESULT(yes)
AC_SUBST([OPENSSL_LIBS], ["-lssl -lcrypto"])
AC_SUBST([OPENSSL_CFLAGS], [])],
[AC_MSG_RESULT(no)
if test "$ssl_library" = "both"; then
ssl_library="gnutls";
else
AC_ERROR([Could not build against OpenSSL]);
fi])
LIBS="$oldLIBS"])
if test "$ssl_library" != "both" && test "$ssl_library" != "gnutls"; then
ssl_library=openssl
fi
elif test "$with_openssl" != "no" ; then
OPENSSL_CFLAGS="-I${with_openssl}/include"
OPENSSL_LIBS="${with_openssl}/libssl.a ${with_openssl}/libcrypto.a -ldl -lz"
AC_SUBST(OPENSSL_CFLAGS)
AC_SUBST(OPENSSL_LIBS)
enable_static=yes
enable_shared=no
AC_DEFINE(DTLS_OPENSSL, 1)
if test "$ssl_library" != "both"; then
ssl_library=openssl
fi
fi
case "$ssl_library" in
gnutls)
AC_DEFINE(OPENCONNECT_GNUTLS, 1)
AC_DEFINE(DTLS_GNUTLS, 1)
AC_SUBST(SSL_LIBRARY, [gnutls])
AC_SUBST(SSL_LIBS, ['$(GNUTLS_LIBS)'])
AC_SUBST(SSL_CFLAGS, ['$(GNUTLS_CFLAGS)'])
;;
openssl)
AC_DEFINE(OPENCONNECT_OPENSSL, 1)
AC_DEFINE(DTLS_OPENSSL, 1)
AC_SUBST(SSL_LIBRARY, [openssl])
AC_SUBST(SSL_LIBS, ['$(OPENSSL_LIBS)'])
AC_SUBST(SSL_CFLAGS, ['$(OPENSSL_CFLAGS)'])
;;
both)
# GnuTLS for TCP, OpenSSL for DTLS
AC_DEFINE(OPENCONNECT_GNUTLS, 1)
AC_DEFINE(DTLS_OPENSSL, 1)
AC_SUBST(SSL_LIBRARY, [gnutls])
AC_SUBST(SSL_LIBS, ['$(GNUTLS_LIBS)'])
AC_SUBST(SSL_CFLAGS, ['$(GNUTLS_CFLAGS)'])
AC_SUBST(DTLS_SSL_LIBS, ['$(OPENSSL_LIBS)'])
AC_SUBST(DTLS_SSL_CFLAGS, ['$(OPENSSL_CFLAGS)'])
;;
*)
AC_MSG_ERROR([Neither OpenSSL nor GnuTLS selected for SSL.])
;;
esac
# Needs to happen after we default to static/shared libraries based on OpenSSL
AC_PROG_LIBTOOL
# Ick. This seems like it's likely to be very fragile, but I can't see a better
# way. I shall console myself with the observation that the failure mode isn't
# particularly horrible — you just don't get symbol versioning if it fails.
symvers=no
if test "$enable_shared" = "yes" ; then
AC_MSG_CHECKING([if library symbol versioning is available]);
echo 'FOO { global: foo; local: *; };' > conftest.map
echo 'int foo = 0;' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
soname=conftest
libobjs=conftest.$ac_objext
if AC_TRY_EVAL(archive_cmds ${wl}--version-script ${wl}conftest.map); then
AC_SUBST(VERSION_SCRIPT_ARG, [--version-script])
symvers="yes (with --version-script)"
elif AC_TRY_EVAL(archive_cmds ${wl}-M ${wl}conftest.map); then
AC_SUBST(VERSION_SCRIPT_ARG, [-M])
symvers="yes (with -M)"
fi
fi
AC_MSG_RESULT(${symvers})
fi
AM_CONDITIONAL(HAVE_SYMBOL_VERSIONING, [test "${symvers}" != "no"])
PKG_CHECK_MODULES(LIBXML2, libxml-2.0)
PKG_CHECK_MODULES(ZLIB, zlib, [],
[oldLIBS="$LIBS"
LIBS="$LIBS -lz"
AC_MSG_CHECKING([for zlib without pkg-config])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <zlib.h>],[
z_stream zs;
deflateInit2(&zs, Z_DEFAULT_COMPRESSION, Z_DEFLATED,
-12, 9, Z_DEFAULT_STRATEGY);])],
[AC_MSG_RESULT(yes)
AC_SUBST([ZLIB_LIBS], [-lz])
AC_SUBST([ZLIB_CFLAGS], [])],
[AC_MSG_RESULT(no)
AC_ERROR([Could not build against zlib])])
LIBS="$oldLIBS"])
PKG_CHECK_MODULES(LIBPROXY, libproxy-1.0,
[AC_SUBST(LIBPROXY_PC, libproxy-1.0)
AC_DEFINE([LIBPROXY_HDR], ["proxy.h"])
libproxy_pkg=yes],
libproxy_pkg=no)
dnl Libproxy *can* exist without a .pc file, and its header may be called
dnl libproxy.h in that case.
if (test "$libproxy_pkg" = "no"); then
AC_MSG_CHECKING([for libproxy])
oldLIBS="$LIBS"
LIBS="$LIBS -lproxy"
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <libproxy.h>],
[(void)px_proxy_factory_new();])],
[AC_MSG_RESULT(yes (with libproxy.h))
AC_DEFINE([LIBPROXY_HDR], ["libproxy.h"])
AC_SUBST([LIBPROXY_LIBS], [-lproxy])],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <proxy.h>],
[(void)px_proxy_factory_new();])],
[AC_MSG_RESULT(yes (with proxy.h))
AC_DEFINE([LIBPROXY_HDR], ["proxy.h"])
AC_SUBST([LIBPROXY_LIBS], [-lproxy])],
[AC_MSG_RESULT(no)])])
LIBS="$oldLIBS"
fi
AC_CHECK_HEADER([if_tun.h],
[AC_DEFINE([IF_TUN_HDR], ["if_tun.h"])],
[AC_CHECK_HEADER([linux/if_tun.h],
[AC_DEFINE([IF_TUN_HDR], ["linux/if_tun.h"])],
[AC_CHECK_HEADER([net/if_tun.h],
[AC_DEFINE([IF_TUN_HDR], ["net/if_tun.h"])],
[AC_CHECK_HEADER([net/tun/if_tun.h],
[AC_DEFINE([IF_TUN_HDR], ["net/tun/if_tun.h"])])])])])
if test "$ssl_library" = "openssl" || test "$ssl_library" = "both"; then
oldLIBS="$LIBS"
LIBS="$LIBS $OPENSSL_LIBS"
if test "$ssl_library" = "openssl"; then
AC_MSG_CHECKING([for ENGINE_by_id() in OpenSSL])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <openssl/engine.h>],
[ENGINE_by_id("foo");])],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ENGINE, [1], [OpenSSL has ENGINE support])],
[AC_MSG_RESULT(no)
AC_MSG_NOTICE([Building without OpenSSL TPM ENGINE support])])
fi
AC_MSG_CHECKING([for dtls1_stop_timer() in OpenSSL])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <openssl/ssl.h>
#include <stdlib.h>
extern void dtls1_stop_timer(SSL *);],
[dtls1_stop_timer(NULL);])],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_DTLS1_STOP_TIMER, [1], [OpenSSL has dtls1_stop_timer() function])],
[AC_MSG_RESULT(no)])
LIBS="$oldLIBS"
fi
AC_PATH_PROG(PYTHON, [python], [], $PATH:/bin:/usr/bin)
if (test -n "${ac_cv_path_PYTHON}"); then
AC_SUBST(PYTHON, ${ac_cv_path_PYTHON})
else
AC_MSG_NOTICE([Python not found; not building HTML pages])
fi
AM_CONDITIONAL(BUILD_WWW, [test -n "${ac_cv_path_PYTHON}"])
AC_SUBST([CONFIG_STATUS_DEPENDENCIES], ['$(top_srcdir)/po/LINGUAS $(top_srcdir)/openconnect.h ${top_srcdir}/libopenconnect.map.in'])
RAWLINGUAS=`sed -e "/^#/d" -e "s/#.*//" "${srcdir}/po/LINGUAS"`
# Remove newlines
LINGUAS=`echo $RAWLINGUAS`
AC_SUBST(LINGUAS)
APIMAJOR="`sed -n 's/^#define OPENCONNECT_API_VERSION_MAJOR \(.*\)/\1/p' ${srcdir}/openconnect.h`"
APIMINOR="`sed -n 's/^#define OPENCONNECT_API_VERSION_MINOR \(.*\)/\1/p' ${srcdir}/openconnect.h`"
AC_SUBST(APIMAJOR)
AC_SUBST(APIMINOR)
# We want version.c to depend on the files that would affect the
# output of version.sh. But we cannot assume that they'll exist,
# and we cannot use $(wildcard) in a non-GNU makefile. So we just
# depend on the files which happen to exist at configure time.
GITVERSIONDEPS=
for a in ${srcdir}/.git/index ${srcdir}/.git/packed-refs \
${srcdir}/.git/refs/tags ${srcdir}/.git/HEAD; do
if test -r $a ; then
GITVERSIONDEPS="$GITVERSIONDEPS $a"
fi
done
AC_SUBST(GITVERSIONDEPS)
AC_OUTPUT(Makefile openconnect.pc po/Makefile www/Makefile libopenconnect.map \
openconnect.8 www/styles/Makefile www/inc/Makefile www/images/Makefile)