- #
- # Copyright (c) 2014-2015 Brent Cook
- # Parts based on configure.ac from Portable OpenNTPD:
- # Copyright (c) 2004-2008 Darren Tucker
- # which itself was based on configure.ac from OpenSSH:
- # Copyright (c) 1999-2004 Damien Miller
- #
- # Permission to use, copy, modify, and distribute this software for any
- # purpose with or without fee is hereby granted, provided that the above
- # copyright notice and this permission notice appear in all copies.
- #
- # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
- AC_INIT([OpenNTPD], m4_esyscmd([tr -d '\n' < VERSION]))
-
- AC_CANONICAL_HOST
- AM_INIT_AUTOMAKE([subdir-objects foreign])
- AC_CONFIG_MACRO_DIR([m4])
-
- m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
-
- AC_SUBST([USER_CFLAGS], "$CFLAGS")
- CFLAGS="-O2 -Wall -std=gnu99 -g"
-
- case $host_os in
- *darwin*)
- HOST_OS=darwin
- AC_DEFINE(SETEUID_BREAKS_SETUID,[],[setuid after seteuid does not work])
- AC_DEFINE(BROKEN_SETREUID,[], [Broken setreuid])
- AC_DEFINE(BROKEN_SETREGID,[], [Broken setregid])
- AC_DEFINE(YYSTYPE_IS_DECLARED,[], [Broken bison])
- AC_DEFINE([SPT_TYPE], [SPT_REUSEARGV])
- ;;
- *freebsd*)
- HOST_OS=freebsd
- AC_SUBST([PROG_LDADD], ['-lthr'])
- ;;
- *linux*)
- HOST_OS=linux
- CFLAGS="$CFLAGS -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE"
- AC_DEFINE([SPT_TYPE], [SPT_REUSEARGV])
- ;;
- *netbsd*)
- HOST_OS=netbsd
- ;;
- *openbsd*)
- HOST_OS=openbsd
- AC_DEFINE([HAVE_ATTRIBUTE__BOUNDED__], [1], [OpenBSD has __bounded__])
- AC_DEFINE([HAVE_ATTRIBUTE__DEAD], [1], [OpenBSD has __dead])
- ;;
- *solaris*)
- HOST_OS=solaris
- CFLAGS="$CFLAGS -D__EXTENSIONS__ -D_XOPEN_SOURCE=600 -DBSD_COMP"
- AC_SUBST([PLATFORM_LDADD], ['-lnsl -lsocket'])
- ;;
- *) ;;
- esac
-
- AM_CONDITIONAL([HOST_DARWIN], [test x$HOST_OS = xdarwin])
- AM_CONDITIONAL([HOST_FREEBSD], [test x$HOST_OS = xfreebsd])
- AM_CONDITIONAL([HOST_LINUX], [test x$HOST_OS = xlinux])
- AM_CONDITIONAL([HOST_NETBSD], [test x$HOST_OS = xnetbsd])
- AM_CONDITIONAL([HOST_OPENBSD], [test x$HOST_OS = xopenbsd])
- AM_CONDITIONAL([HOST_SOLARIS], [test x$HOST_OS = xsolaris])
-
- AC_CHECK_FUNC([dl_iterate_phdr],,
- [AC_SEARCH_LIBS([dl_iterate_phdr],[dl])])
-
- AC_PROG_CC
- AC_PROG_CC_STDC
- AM_PROG_CC_C_O
- AC_PROG_LIBTOOL
- AC_PROG_YACC
-
- save_cflags="$CFLAGS"
- CFLAGS=-Wno-pointer-sign
- AC_MSG_CHECKING([whether CC supports -Wno-pointer-sign])
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
- [AC_MSG_RESULT([yes])]
- [AM_CFLAGS=-Wno-pointer-sign],
- [AC_MSG_RESULT([no])]
- )
- CFLAGS="$save_cflags $AM_CFLAGS"
-
- AC_MSG_CHECKING([if compiling with clang])
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
- #ifndef __clang__
- not clang
- #endif
- ]])],
- [AC_MSG_RESULT([yes])]
- [CLANG_FLAGS=-Qunused-arguments],
- [AC_MSG_RESULT([no])]
- )
- CFLAGS="$CFLAGS $CLANG_CFLAGS"
- LDFLAGS="$LDFLAGS $CLANG_FLAGS"
-
- # check functions that are expected to be in libc
- AC_CHECK_FUNCS([adjfreq ntp_adjtime adjtimex])
- AC_CHECK_FUNCS([arc4random arc4random_uniform asprintf explicit_bzero])
- AC_CHECK_FUNCS([closefrom getentropy memmem poll reallocarray])
- AC_CHECK_FUNCS([setproctitle setgroups])
- AC_CHECK_FUNCS([setregid setresgid setreuid setresuid])
- AC_CHECK_FUNCS([strlcat strlcpy strtonum sysconf])
-
- # check auxiliary libraries that might contain other functions
- AC_SEARCH_LIBS([arc4random], [crypto])
- AC_SEARCH_LIBS([clock_getres],[rt posix4])
- AC_SEARCH_LIBS([clock_gettime],[rt posix4])
- AC_SEARCH_LIBS([ibuf_open], [util])
- AC_SEARCH_LIBS([MD5Init], [md md5])
- AC_SEARCH_LIBS([SHA512Init], [md])
-
- AC_CHECK_FUNCS([arc4random ibuf_open MD5Init SHA512Init])
- AC_CHECK_FUNCS([clock_gettime clock_getres])
-
- # check for libtls
- AC_SEARCH_LIBS([tls_config_set_ca_mem],[tls],
- [LIBS="$LIBS -ltls -lssl -lcrypto"],,[-lssl -lcrypto])
- AC_CHECK_FUNCS([tls_config_set_ca_mem])
-
- # Share test results with automake
- AM_CONDITIONAL([HAVE_ADJFREQ], [test "x$ac_cv_func_adjfreq" = xyes])
- AM_CONDITIONAL([HAVE_ARC4RANDOM], [test "x$ac_cv_func_arc4random" = xyes])
- AM_CONDITIONAL([HAVE_ARC4RANDOM_UNIFORM], [test "x$ac_cv_func_arc4random_uniform" = xyes])
- AM_CONDITIONAL([HAVE_ASPRINTF], [test "x$ac_cv_func_asprintf" = xyes])
- AM_CONDITIONAL([HAVE_CLOSEFROM], [test "x$ac_cv_func_closefrom" = xyes])
- AM_CONDITIONAL([HAVE_CLOCK_GETRES], [test "x$ac_cv_func_clock_getres" = xyes])
- AM_CONDITIONAL([HAVE_CLOCK_GETTIME], [test "x$ac_cv_func_clock_gettime" = xyes])
- AM_CONDITIONAL([HAVE_EXPLICIT_BZERO], [test "x$ac_cv_func_explicit_bzero" = xyes])
- AM_CONDITIONAL([HAVE_GETENTROPY], [test "x$ac_cv_func_getentropy" = xyes])
- AM_CONDITIONAL([HAVE_IMSG], [test "x$ac_cv_func_ibuf_open" = xyes])
- AM_CONDITIONAL([HAVE_MD5], [test "x$ac_cv_func_MD5Init" = xyes])
- AM_CONDITIONAL([HAVE_MEMMEM], [test "x$ac_cv_func_memmem" = xyes])
- AM_CONDITIONAL([HAVE_POLL], [test "x$ac_cv_func_poll" = xyes])
- AM_CONDITIONAL([HAVE_REALLOCARRAY], [test "x$ac_cv_func_reallocarray" = xyes])
- AM_CONDITIONAL([HAVE_SETGROUPS], [test "x$ac_cv_func_setgroups" = xyes])
- AM_CONDITIONAL([HAVE_SETRESGID], [test "x$ac_cv_func_setresgid" = xyes])
- AM_CONDITIONAL([HAVE_SETRESUID], [test "x$ac_cv_func_setresuid" = xyes])
- AM_CONDITIONAL([HAVE_SETPROCTITLE], [test "x$ac_cv_func_setproctitle" = xyes])
- AM_CONDITIONAL([HAVE_SHA512], [test "x$ac_cv_func_SHA512Init" = xyes])
- AM_CONDITIONAL([HAVE_STRLCAT], [test "x$ac_cv_func_strlcat" = xyes])
- AM_CONDITIONAL([HAVE_STRLCPY], [test "x$ac_cv_func_strlcpy" = xyes])
- AM_CONDITIONAL([HAVE_STRTONUM], [test "x$ac_cv_func_strtonum" = xyes])
- AM_CONDITIONAL([HAVE_SYSCONF], [test "x$ac_cv_func_sysconf" = xyes])
- AM_CONDITIONAL([HAVE_LIBTLS], [test "x$ac_cv_func_tls_config_set_ca_mem" = xyes])
- if test "x$ac_cv_func_tls_config_set_ca_mem" = "xyes" ; then
- AC_DEFINE([HAVE_LIBTLS], [1])
- fi
-
- # overrides for arc4random implementations with known issues
- AM_CONDITIONAL([HAVE_ARC4RANDOM],
- [test "x$HOST_OS" != xdarwin \
- -a "x$HOST_OS" != xfreebsd \
- -a "x$HOST_OS" != xnetbsd \
- -a "x$ac_cv_func_arc4random" = xyes])
- AM_CONDITIONAL([HAVE_ARC4RANDOM_UNIFORM],
- [test "x$HOST_OS" != xdarwin \
- -a "x$HOST_OS" != xfreebsd \
- -a "x$HOST_OS" != xnetbsd \
- -a "x$ac_cv_func_arc4random_uniform" = xyes])
-
- AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
- [[ extern char *__progname; printf("%s", __progname); ]])],
- [ ac_cv_libc_defines___progname="yes" ],
- [ ac_cv_libc_defines___progname="no"
- ])
- ])
- if test "x$ac_cv_libc_defines___progname" = "xyes" ; then
- AC_DEFINE([HAVE___PROGNAME], [1], [Define if libc defines __progname])
- fi
-
- AC_CACHE_CHECK([whether va_copy exists], ac_cv_have_va_copy, [
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[
- #include <stdarg.h>
- va_list x,y;
- ]], [[ va_copy(x,y); ]])],
- [ ac_cv_have_va_copy="yes" ],
- [ ac_cv_have_va_copy="no"
- ])
- ])
- if test "x$ac_cv_have_va_copy" = "xyes" ; then
- AC_DEFINE([HAVE_VA_COPY], [1], [Define if va_copy exists])
- fi
-
- AC_CACHE_CHECK([whether __va_copy exists], ac_cv_have___va_copy, [
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[
- #include <stdarg.h>
- va_list x,y;
- ]], [[ __va_copy(x,y); ]])],
- [ ac_cv_have___va_copy="yes" ], [ ac_cv_have___va_copy="no"
- ])
- ])
- if test "x$ac_cv_have___va_copy" = "xyes" ; then
- AC_DEFINE([HAVE___VA_COPY], [1], [Define if __va_copy exists])
- fi
-
- AC_CHECK_HEADERS([sys/sysctl.h err.h md5.h sha2.h])
- AC_CHECK_HEADERS([sys/sensors.h],
- AM_CONDITIONAL(HAVE_SENSORS, true),
- AM_CONDITIONAL(HAVE_SENSORS, false)
- )
-
- AC_CHECK_MEMBERS([struct sockaddr_in.sin_len], , ,
- [ #include <netdb.h>
- #include <netinet/in.h>
- #include <sys/socket.h> ]
- )
-
- AC_ARG_WITH([privsep-user],
- AS_HELP_STRING([--with-privsep-user=user],
- [Privilege separation user for ntpd to use]),
- PRIVSEP_USER="$withval",
- PRIVSEP_USER="_ntp"
- )
- AC_DEFINE_UNQUOTED(NTPD_USER, "$PRIVSEP_USER", [Unprivileged user])
- AC_SUBST(PRIVSEP_USER)
-
- AC_ARG_WITH([privsep-path],
- AS_HELP_STRING([--with-privsep-path=path],
- [Privilege separation chroot path to check on install]),
- PRIVSEP_PATH="$withval",
- PRIVSEP_PATH="/var/empty"
- )
- AC_SUBST(PRIVSEP_PATH)
-
- AC_ARG_WITH([cacert],
- AS_HELP_STRING([--with-cacert=path],
- [CA certificate location for HTTPS constraint validation]),
- CONSTRAINT_CA="$withval",
- CONSTRAINT_CA="/etc/ssl/cert.pem"
- )
- AC_DEFINE_UNQUOTED(CONSTRAINT_CA, "$CONSTRAINT_CA", [CA certificate path])
-
- AC_CONFIG_FILES([
- Makefile
- include/Makefile
- compat/Makefile
- src/Makefile
- ])
-
- AC_OUTPUT
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