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#
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# Copyright (c) 2014-2015 Brent Cook
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# Parts based on configure.ac from Portable OpenNTPD:
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# Copyright (c) 2004-2008 Darren Tucker
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# which itself was based on configure.ac from OpenSSH:
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# Copyright (c) 1999-2004 Damien Miller
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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AC_INIT([OpenNTPD], m4_esyscmd([tr -d '\n' < VERSION]))
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AC_CANONICAL_HOST
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AM_INIT_AUTOMAKE([subdir-objects foreign])
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AC_CONFIG_MACRO_DIR([m4])
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m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
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AC_PROG_CC
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AC_PROG_CC_STDC
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AM_PROG_CC_C_O
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AC_PROG_LIBTOOL
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LT_INIT
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AC_PROG_YACC
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DISABLE_COMPILER_WARNINGS
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CHECK_OS_OPTIONS
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CHECK_CRYPTO_COMPAT
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# check functions that are expected to be in libc
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AC_CHECK_FUNCS([asprintf closefrom daemon memmem poll reallocarray])
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AC_CHECK_FUNCS([setproctitle setgroups])
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AC_CHECK_FUNCS([setregid setresgid setreuid setresuid])
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AC_CHECK_FUNCS([strlcat strlcpy strtonum sysconf])
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# check auxiliary libraries that might contain other functions
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AC_SEARCH_LIBS([arc4random], [crypto])
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AC_SEARCH_LIBS([ibuf_open], [util])
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AC_CHECK_FUNCS([ibuf_open])
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# time-specific system functions
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AC_CHECK_FUNCS([adjfreq ntp_adjtime adjtimex])
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AC_CHECK_FUNCS([clock_gettime clock_getres])
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AC_SEARCH_LIBS([clock_getres],[rt posix4])
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AC_SEARCH_LIBS([clock_gettime],[rt posix4])
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AM_CONDITIONAL([HAVE_ADJFREQ], [test "x$ac_cv_func_adjfreq" = xyes])
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AM_CONDITIONAL([HAVE_CLOCK_GETRES], [test "x$ac_cv_func_clock_getres" = xyes])
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AM_CONDITIONAL([HAVE_CLOCK_GETTIME], [test "x$ac_cv_func_clock_gettime" = xyes])
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# check for libtls
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AC_SEARCH_LIBS([tls_config_set_ca_mem],[tls],
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[LIBS="$LIBS -ltls -lssl -lcrypto"],,[-lssl -lcrypto])
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AC_CHECK_FUNCS([tls_config_set_ca_mem])
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# check if libtls uses 3-argument tls_write
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AC_CACHE_CHECK([if tls_write takes 3 arguments], ac_cv_have_tls_write_3_arg, [
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <tls.h>
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size_t outlen;
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]], [[ tls_write(NULL, NULL, 0); ]])],
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[ ac_cv_have_tls_write_3_arg="yes" ],
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[ ac_cv_have_tls_write_3_arg="no"
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])
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])
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AC_ARG_ENABLE([https-constraint],
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AS_HELP_STRING([--disable-https-constraint],
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[Disable HTTPS Constraint Functionality]))
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AM_CONDITIONAL([HAVE_LIBTLS],
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[test "x$ac_cv_func_tls_config_set_ca_mem" = xyes \
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-a "x$ac_cv_have_tls_write_3_arg" = xyes \
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-a "x$enable_https_constraint" != xno])
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if test "x$ac_cv_func_tls_config_set_ca_mem" = xyes \
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-a "x$ac_cv_have_tls_write_3_arg" = xyes \
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-a "x$enable_https_constraint" != xno; then
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AC_DEFINE([HAVE_LIBTLS], [yes])
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fi
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# Share test results with automake
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AM_CONDITIONAL([HAVE_ASPRINTF], [test "x$ac_cv_func_asprintf" = xyes])
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AM_CONDITIONAL([HAVE_CLOSEFROM], [test "x$ac_cv_func_closefrom" = xyes])
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AM_CONDITIONAL([HAVE_DAEMON], [test "x$ac_cv_func_daemon" = xyes])
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AM_CONDITIONAL([HAVE_EXPLICIT_BZERO], [test "x$ac_cv_func_explicit_bzero" = xyes])
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AM_CONDITIONAL([HAVE_IFADDRS_H], [test "x$ac_cv_header_ifaddrs_h" = xyes])
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AM_CONDITIONAL([HAVE_IMSG], [test "x$ac_cv_func_ibuf_open" = xyes])
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AM_CONDITIONAL([HAVE_MEMMEM], [test "x$ac_cv_func_memmem" = xyes])
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AM_CONDITIONAL([HAVE_POLL], [test "x$ac_cv_func_poll" = xyes])
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AM_CONDITIONAL([HAVE_REALLOCARRAY], [test "x$ac_cv_func_reallocarray" = xyes])
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AM_CONDITIONAL([HAVE_SETGROUPS], [test "x$ac_cv_func_setgroups" = xyes])
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AM_CONDITIONAL([HAVE_SETRESGID], [test "x$ac_cv_func_setresgid" = xyes])
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AM_CONDITIONAL([HAVE_SETRESUID], [test "x$ac_cv_func_setresuid" = xyes])
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AM_CONDITIONAL([HAVE_SETPROCTITLE], [test "x$ac_cv_func_setproctitle" = xyes])
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AM_CONDITIONAL([HAVE_STRLCAT], [test "x$ac_cv_func_strlcat" = xyes])
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AM_CONDITIONAL([HAVE_STRLCPY], [test "x$ac_cv_func_strlcpy" = xyes])
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AM_CONDITIONAL([HAVE_STRTONUM], [test "x$ac_cv_func_strtonum" = xyes])
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AM_CONDITIONAL([HAVE_SYSCONF], [test "x$ac_cv_func_sysconf" = xyes])
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CHECK_PROGNAME
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CHECK_VA_COPY
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AC_CHECK_HEADERS([sys/sysctl.h err.h ifaddrs.h paths.h])
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AC_CHECK_HEADERS([sys/sensors.h],
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AM_CONDITIONAL(HAVE_SENSORS, true),
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AM_CONDITIONAL(HAVE_SENSORS, false)
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)
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AC_CHECK_MEMBERS([struct sockaddr_in.sin_len], , ,
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[ #include <netdb.h>
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#include <netinet/in.h>
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#include <sys/socket.h> ]
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)
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AC_ARG_WITH([privsep-user],
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AS_HELP_STRING([--with-privsep-user=user],
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[Privilege separation user for ntpd to use]),
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PRIVSEP_USER="$withval",
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PRIVSEP_USER="_ntp"
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)
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AC_DEFINE_UNQUOTED(NTPD_USER, "$PRIVSEP_USER", [Unprivileged user])
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AC_SUBST(PRIVSEP_USER)
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AC_ARG_WITH([privsep-path],
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AS_HELP_STRING([--with-privsep-path=path],
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[Privilege separation chroot path to check on install]),
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PRIVSEP_PATH="$withval",
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PRIVSEP_PATH="/var/empty"
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)
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AC_SUBST(PRIVSEP_PATH)
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AC_ARG_WITH([cacert],
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AS_HELP_STRING([--with-cacert=path],
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[CA certificate location for HTTPS constraint validation]),
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CONSTRAINT_CA="$withval",
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CONSTRAINT_CA="/etc/ssl/cert.pem"
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)
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AC_DEFINE_UNQUOTED(CONSTRAINT_CA, "$CONSTRAINT_CA", [CA certificate path])
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AC_CONFIG_FILES([
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Makefile
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include/Makefile
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compat/Makefile
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src/Makefile
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])
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AC_OUTPUT
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