# -*- Autoconf -*- # Process this file with autoconf to produce a configure script. ####################### ### Base configuration # Configure autoconf AC_PREREQ([2.69]) AC_INIT([lldpd], [m4_esyscmd_s([./get-version])], [https://github.com/lldpd/lldpd/issues], [lldpd], [https://lldpd.github.io/]) AC_CONFIG_SRCDIR([src/log.c]) AC_CONFIG_HEADERS([config.h]) AC_CONFIG_FILES([Makefile src/Makefile src/compat/Makefile src/daemon/Makefile src/lib/Makefile src/client/Makefile tests/Makefile osx/Makefile]) AC_CONFIG_MACRO_DIR([m4]) AC_SUBST([CONFIGURE_ARGS], [$ac_configure_args]) # Configure automake AM_INIT_AUTOMAKE([foreign subdir-objects -Wall -Werror tar-ustar]) AM_MAINTAINER_MODE m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES(yes)]) # Automake 1.12... m4_pattern_allow([AM_PROG_AR]) AM_PROG_AR # Configure libtool LT_INIT gl_LD_VERSION_SCRIPT ####################### ### Checks # Checks for programs. AC_PROG_CC AC_PROG_CC_C99 if test x"$ac_cv_prog_cc_c99" = x"no"; then AC_MSG_FAILURE([*** C99 support is mandatory]) fi AC_PROG_CPP AM_PROG_CC_C_O LT_INIT AC_PROG_LN_S AC_PROG_EGREP AC_PROG_AWK AC_PROG_SED # Check for pkg-config m4_ifndef([PKG_CHECK_MODULES], [ AC_MSG_ERROR([PKG_CHECK_MODULES not found. Please install pkg-config and re-run autogen.sh])]) # Doxygen DX_HTML_FEATURE(ON) DX_DOT_FEATURE(OFF) DX_CHM_FEATURE(OFF) DX_CHI_FEATURE(OFF) DX_MAN_FEATURE(OFF) DX_RTF_FEATURE(OFF) DX_XML_FEATURE(OFF) DX_PDF_FEATURE(ON) DX_PS_FEATURE(OFF) DX_INIT_DOXYGEN([lldpd], [doxygen.cfg], [doxygen]) # Check some compiler flags AX_CFLAGS_GCC_OPTION([-Wunknown-warning-option], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-fdiagnostics-show-option], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-fdiagnostics-color=auto], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-fno-omit-frame-pointer], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-funsigned-char], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-pipe], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wall], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-W], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wextra], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wformat], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wformat-security], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wimplicit-fallthrough], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wfatal-errors], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wheader-guard], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wdocumentation], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Winline], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wpointer-arith], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wmissing-prototypes], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wno-cast-align], [LLDP_CFLAGS]) dnl clang is bad at this AX_CFLAGS_GCC_OPTION([-Wno-unused-parameter], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wno-missing-field-initializers], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-Wno-sign-compare], [LLDP_CFLAGS]) dnl Should be fixed later AX_LDFLAGS_OPTION([-Wl,-z,relro], [LLDP_LDFLAGS]) AX_LDFLAGS_OPTION([-Wl,-z,now], [LLDP_LDFLAGS]) AC_C_TYPEOF # Hardening AC_ARG_ENABLE([hardening], [AS_HELP_STRING([--enable-hardening], [Enable compiler and linker options to frustrate memory corruption exploits @<:@default=yes@:>@])], [hardening="$enableval"], [hardening="yes"]) AC_ARG_ENABLE([pie], [AS_HELP_STRING([--enable-pie], [Enable PIE (position independant executable) @<:@default=no@:>@])], [pie="$enableval"], [pie="no"]) if test x"$hardening" != x"no"; then AX_CFLAGS_GCC_OPTION([-fstack-protector], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-fstack-protector-all], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-fstack-protector-strong], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-fstack-protector-strong], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-fstack-clash-protection], [LLDP_CFLAGS]) AX_CFLAGS_GCC_OPTION([-D_FORTIFY_SOURCE=2], [LLDP_CPPFLAGS]) fi if test x"$pie" = x"yes"; then AX_CFLAGS_GCC_OPTION([-fPIE], [LLDP_CFLAGS]) AX_LDFLAGS_OPTION([-fPIE -pie], [LLDP_BIN_LDFLAGS], [AX_LDFLAGS_OPTION([-fPIE -Wl,-pie], [LLDP_BIN_LDFLAGS])]) fi # Sanitizers AC_ARG_ENABLE([sanitizers], AS_HELP_STRING([--enable-sanitizers], [Enable code instrumentation with selected sanitizers @<:@default=no@:>@]), [ case "$enableval" in no) sanitizers= ;; yes) sanitizers="-fsanitize=address,undefined" ;; *) sanitizers="-fsanitize=$enableval" ;; esac if test x"$sanitizers" != x; then LLDP_CFLAGS="$LLDP_CFLAGS $sanitizers" LLDP_LDFLAGS="$LLDP_LDFLAGS $sanitizers" AC_DEFINE([HAVE_ADDRESS_SANITIZER], 1, [Define if have both address and leak sanitizer]) elif test x"$hardening" != x"no"; then AX_LDFLAGS_OPTION([-fsanitize=safe-stack], [LLDP_BIN_LDFLAGS]) if test x"$ax_cv_ld_check_flag__fsanitize_safe_stack" != x"no"; then AX_CFLAGS_GCC_OPTION([-fsanitize=safe-stack], [LLDP_CFLAGS]) fi fi ]) # Fuzzer AC_ARG_ENABLE([fuzzer], AS_HELP_STRING([--enable-fuzzer], [Enable fuzzing @<:@default=no@:>@]), [ case "$enableval" in no) fuzzer= ;; yes) fuzzer="-fsanitize=fuzzer" ;; *) fuzzer="$enableval" ;; esac if test x"$fuzzer" != x; then AC_SUBST([FUZZ_DECODE_ENGINE], ["$fuzzer"]) AX_CFLAGS_GCC_OPTION([-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION], [LLDP_CFLAGS]) fi ]) # Code coverage AC_ARG_ENABLE([gcov], AS_HELP_STRING([--enable-gcov], [Enable coverage instrumentation @<:@default=no@:>@]), [gcov="$enableval"], [gcov="no"]) if test x"$gcov" != x"no"; then LLDP_CFLAGS="$LLDP_CFLAGS --coverage" LLDP_LDFLAGS="$LLDP_LDFLAGS --coverage" fi # OS lldp_CHECK_OS lldp_CFLAGS_OS AC_CACHE_SAVE # Checks for header files. AC_HEADER_RESOLV AC_CHECK_HEADERS([valgrind/valgrind.h]) lldp_CHECK_STDINT AC_CACHE_SAVE # Checks for typedefs, structures, and compiler characteristics. lldp_CHECK___PROGNAME lldp_CHECK_ALIGNOF # Checks for library functions. AC_CONFIG_LIBOBJ_DIR([src/compat]) AC_FUNC_MALLOC AC_FUNC_REALLOC AC_FUNC_FORK # Some functions can be in libbsd AC_ARG_WITH([libbsd], AS_HELP_STRING( [--with-libbsd], [Use libbsd @<:@default=auto@:>@]), [], [with_libbsd=auto]) if test x"$with_libbsd" != x"no"; then PKG_CHECK_MODULES([libbsd], [libbsd-overlay], [ _save_CFLAGS="$CFLAGS" _save_LIBS="$LIBS" CFLAGS="$CFLAGS $libbsd_CFLAGS" LIBS="$LIBS $libbsd_LIBS" AC_MSG_CHECKING([if libbsd can be linked correctly]) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ @%:@include @%:@include ]], [[]])],[ AC_MSG_RESULT(yes) LLDP_CFLAGS="$LLDP_CFLAGS $libbsd_CFLAGS" LLDP_LDFLAGS="$LLDP_LDFLAGS $libbsd_LIBS" with_libbsd=yes ],[ AC_MSG_RESULT(no) CFLAGS="$_save_CFLAGS" LIBS="$_save_LIBS" if test x"$with_libbsd" = x"yes"; then AC_MSG_FAILURE([*** no libbsd support found]) fi with_libbsd=no ]) ], [ if test x"$with_libbsd" = x"yes"; then AC_MSG_FAILURE([*** no libbsd support found]) fi with_libbsd=no ]) fi # setproctitle may have an _init function AC_REPLACE_FUNCS([setproctitle]) AC_CHECK_FUNCS([setproctitle_init]) # Other functions AC_REPLACE_FUNCS([strlcpy strnlen strndup strtonum getline asprintf vsyslog daemon]) # Optional functions AC_CHECK_FUNCS([setresuid setresgid]) # Check for res_init. On OSX, res_init is a symbol in libsystem_info # and a macro in resolv.h. We need to ensure we test with resolv.h. m4_pushdef([AC_LANG_CALL(C)], [ AC_LANG_PROGRAM([$1 @%:@include ], [return $2 ();])]) AC_SEARCH_LIBS([res_init], resolv bind, AC_DEFINE([HAVE_RES_INIT], 1, [Define to indicate that res_init() exists])) m4_popdef([AC_LANG_CALL(C)]) AC_CACHE_SAVE ## Unit tests wich check PKG_CHECK_MODULES([check], [check >= 0.9.4], [have_check=yes], [have_check=no]) # Third-party libraries lldp_CHECK_LIBEVENT lldp_CHECK_LIBCAP # Compatibility with pkg.m4 < 0.27 m4_ifdef([PKG_INSTALLDIR], [PKG_INSTALLDIR], [AC_ARG_WITH([pkgconfigdir], [AS_HELP_STRING([--with-pkgconfigdir], [install directory for *.pc pkg-config file])], [],[with_pkgconfigdir='$(libdir)/pkgconfig']) AC_SUBST([pkgconfigdir], [${with_pkgconfigdir}])]) ####################### ### Options # Readline AC_ARG_WITH([readline], AS_HELP_STRING( [--with-readline], [Enable the use of readline-like library @<:@default=auto@:>@]), [], [with_readline=auto]) if test x"$with_readline" != x"no"; then AX_LIB_READLINE_LLDPD if test x"$with_readline" != x"check" -a x"$with_readline" != x"auto"; then if test x"$ax_cv_lib_readline" = x"no"; then AC_MSG_FAILURE([*** no readline support found]) fi fi else ax_cv_lib_readline="no" fi # SNMP AC_ARG_WITH([snmp], AS_HELP_STRING( [--with-snmp], [Enable the use of SNMP @<:@default=no@:>@]), [], [with_snmp=no]) lldp_CHECK_SNMP # XML AC_ARG_WITH([xml], AS_HELP_STRING( [--with-xml], [Enable XML output via libxml2 @<:@default=auto@:>@]), [], [with_xml=auto]) lldp_CHECK_XML2 # JSON (built-in) lldp_ARG_ENABLE([json0], [use of pre-0.9.2 JSON/json-c format], [no]) # Seccomp AC_ARG_WITH([seccomp], AS_HELP_STRING( [--with-seccomp], [Enable seccomp support (with libseccomp, experimental) @<:@default=no@:>@]), [], [with_seccomp=no]) lldp_CHECK_SECCOMP # OS X launchd support lldp_ARG_WITH([launchddaemonsdir], [Directory for launchd configuration file (OSX)], [/Library/LaunchDaemons]) AC_SUBST([launchddaemonsdir], [$with_launchddaemonsdir]) AM_CONDITIONAL(HAVE_LAUNCHDDAEMONSDIR, [test -n "$with_launchddaemonsdir" -a "x$with_launchddaemonsdir" != xno ]) # Systemd lldp_ARG_WITH([systemdsystemunitdir], [Directory for systemd service files], [$($PKG_CONFIG --variable=systemdsystemunitdir systemd 2> /dev/null)]) AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir]) AM_CONDITIONAL(HAVE_SYSTEMDSYSTEMUNITDIR, [test -n "$with_systemdsystemunitdir" -a "x$with_systemdsystemunitdir" != xno ]) # sysusers lldp_ARG_WITH([sysusersdir], [Directory for sysusers files], [$($PKG_CONFIG --variable=sysusersdir systemd 2> /dev/null)]) AC_SUBST([sysusersdir], [$with_sysusersdir]) AM_CONDITIONAL(HAVE_SYSUSERSDIR, [test -n "$with_sysusersdir" -a "x$with_sysusersdir" != xno ]) # AppArmor lldp_ARG_WITH([apparmordir], [Directory for AppArmor profiles (Linux)], [no]) AC_SUBST([apparmordir], [$with_apparmordir]) AM_CONDITIONAL(HAVE_APPARMORDIR, [test -n "$with_apparmordir" -a "x$with_apparmordir" != xno ]) # Systemtap/DTrace lldp_SYSTEMTAP # Privsep settings lldp_ARG_ENABLE([privsep], [Privilege separation], [yes]) lldp_ARG_WITH([privsep-user], [Which user to use for privilege separation], [_lldpd]) lldp_ARG_WITH([privsep-group], [Which group to use for privilege separation], [_lldpd]) # Directories dnl On autoconf 2.69 and before, runstatedir is not configurable, let be able to use it anyway if test "x$runstatedir" = x; then AC_SUBST([runstatedir], ['${localstatedir}/run']) fi lldp_ARG_WITH([privsep-chroot], [Which directory to use to chroot lldpd], [${runstatedir}/lldpd]) lldp_ARG_WITH([lldpd-ctl-socket], [Path to socket for communication with lldpd], [${runstatedir}/lldpd.socket]) lldp_ARG_WITH([lldpd-pid-file], [Path to lldpd PID file], [${runstatedir}/lldpd.pid]) # Netlink lldp_ARG_WITH_UNQUOTED([netlink-max-receive-bufsize], [Netlink maximum receive buffer size], [1024*1024]) lldp_ARG_WITH_UNQUOTED([netlink-receive-bufsize], [Netlink initial receive buffer size], [0]) lldp_ARG_WITH_UNQUOTED([netlink-send-bufsize], [Netlink send buffer size], [0]) # CDP/FDP/EDP/SONMP lldp_ARG_ENABLE([cdp], [Cisco Discovery Protocol], [yes]) lldp_ARG_ENABLE([fdp], [Foundry Discovery Protocol], [yes]) lldp_ARG_ENABLE([edp], [Extreme Discovery Protocol], [yes]) lldp_ARG_ENABLE([sonmp], [SynOptics Network Management Protocol], [yes]) # LLDPMED/Dot1/Dot3 lldp_ARG_ENABLE([lldpmed], [LLDP-MED extension], [yes]) lldp_ARG_ENABLE([dot1], [Dot1 extension (VLAN stuff)], [yes]) lldp_ARG_ENABLE([dot3], [Dot3 extension (PHY stuff)], [yes]) lldp_ARG_ENABLE([custom], [Custom TLV support], [yes]) # Oldies MIN_LINUX_KERNEL_VERSION=2.6.39 lldp_ARG_ENABLE([oldies], [compatibility with Linux kernel older than 2.6.39], [no]) if test x"$os" = x"Linux"; then if test x"$enable_oldies" = x"no"; then AC_DEFINE_UNQUOTED(MIN_LINUX_KERNEL_VERSION, "[$MIN_LINUX_KERNEL_VERSION]", [Minimal Linux kernel version required]) else AC_DEFINE(MIN_LINUX_KERNEL_VERSION, "2.6.11", [Minimal kernel version required]) fi fi AX_BUILD_DATE_EPOCH(BUILD_DATE, "%FT%TZ", [BUILD_DATE="(unknown)"]) AC_DEFINE_UNQUOTED(BUILD_DATE, "[$BUILD_DATE]", [Build date and time]) dnl per reproducible-builds.org check SOURCE_DATE_EPOCH dnl if test -z "${SOURCE_DATE_EPOCH+set}" ; then AC_DEFINE_UNQUOTED(LLDP_CC, "[$CC $LLDP_CFLAGS $LLDP_CPPFLAGS $CFLAGS $CPPFLAGS]", [C compiler command]) AC_DEFINE_UNQUOTED(LLDP_LD, "[$LD $LLDP_LDFLAGS $LLDP_BIN_LDFLAGS $LDFLAGS $LIBS]", [Linker compiler command]) else AC_DEFINE_UNQUOTED(LLDP_CC, "[C compiler command is not available for reproducible builds]", [C compiler command]) AC_DEFINE_UNQUOTED(LLDP_LD, "[Linker compiler command is not available for reproducible builds]", [Linker compiler command]) fi ####################### # Output results AC_SUBST([LLDP_CFLAGS]) AC_SUBST([LLDP_CPPFLAGS]) AC_SUBST([LLDP_LDFLAGS]) AC_SUBST([LLDP_BIN_LDFLAGS]) AM_CONDITIONAL([ENABLE_FUZZ_DECODE], [test x"$fuzzer" != x]) AM_CONDITIONAL([HAVE_CHECK], [test x"$have_check" = x"yes"]) AM_CONDITIONAL([USE_SNMP], [test x"$with_snmp" = x"yes"]) AM_CONDITIONAL([USE_XML], [test x"$with_xml" = x"yes"]) AM_CONDITIONAL([USE_SECCOMP], [test x"$with_seccomp" = x"yes"]) dnl If old default of AR_FLAGS is otherwise being used (because of older automake), dnl replace it with one without 'u' if test "x$AR_FLAGS" = "xcru" ; then AR_FLAGS="cr" fi AC_OUTPUT if test x"$LIBEVENT_EMBEDDED" = x; then libevent=system else libevent=embedded fi cat <