]> git.ipfire.org Git - thirdparty/lldpd.git/blobdiff - configure.ac
tests: request CAP_DAC_OVERRIDE
[thirdparty/lldpd.git] / configure.ac
index f60617c2b8c0b9a9120a149d0d587b07cf87a331..9b40473ed6cf6d2d1108e264d96ff843377350d3 100644 (file)
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.61)
-AC_INIT(lldpd, 0.2, bernat@luffy.cx)
-AM_INIT_AUTOMAKE([foreign])
-AC_CONFIG_SRCDIR([src/lldpd.c])
+#######################
+### Base configuration
+
+# Configure autoconf
+AC_PREREQ([2.64])
+
+AC_INIT([lldpd],
+        [m4_esyscmd_s([./get-version])],
+        [https://github.com/vincentbernat/lldpd/issues],
+        [lldpd],
+        [http://vincentbernat.github.io/lldpd/])
+
+AC_CONFIG_SRCDIR([src/log.c])
 AC_CONFIG_HEADER([config.h])
-AC_CONFIG_FILES([Makefile src/Makefile man/Makefile])
+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
+AM_PROG_CC_C_O
+AC_PROG_LIBTOOL
+AC_PROG_LN_S
+AC_PROG_EGREP
+AC_PROG_AWK
 
-# Checks for libraries.
-AC_ARG_WITH(snmp,
-  AC_HELP_STRING(
-    [--with-snmp],
-    [Enable the use of SNMP]
-  ),
-  [],
-  [with_snmp=no]
-)
-AM_CONDITIONAL([USE_SNMP], [test "${with_snmp}" != "no"])
-
-AC_ARG_WITH(privsep-user,
-       AC_HELP_STRING([--with-privsep-user],
-                      [Which user to use for privilege separation]),
-       AC_DEFINE_UNQUOTED([PRIVSEP_USER], "$withval", [User for privilege separation]),
-       AC_DEFINE_UNQUOTED([PRIVSEP_USER], "_lldpd", [User for privilege separation]))
-AC_ARG_WITH(privsep-group,
-       AC_HELP_STRING([--with-privsep-group],
-                      [Which group to use for privilege separation]),
-       AC_DEFINE_UNQUOTED([PRIVSEP_GROUP], "$withval", [Group for privilege separation]),
-       AC_DEFINE_UNQUOTED([PRIVSEP_GROUP], "_lldpd", [Group for privilege separation]))
-AC_ARG_WITH(privsep-chroot,
-       AC_HELP_STRING([--with-privsep-chroot],
-                      [Which directory to use to chroot lldpd]),
-       AC_DEFINE_UNQUOTED([PRIVSEP_CHROOT], "$withval", [Chroot directory]),
-       AC_DEFINE_UNQUOTED([PRIVSEP_CHROOT], "/var/run/lldpd", [Chroot directory]))
+# 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([-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([-Wfatal-errors], [LLDP_CFLAGS])
+AX_CFLAGS_GCC_OPTION([-Wcast-align], [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([-fno-omit-frame-pointer], [LLDP_CFLAGS])
+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"$hardening" != x"no"; then
+  AX_CFLAGS_GCC_OPTION([-fstack-protector], [LLDP_CFLAGS])
+  AX_CFLAGS_GCC_OPTION([-fstack-protector-all], [LLDP_CFLAGS])
+  AX_CFLAGS_GCC_OPTION([-fstack-protector-strong], [LLDP_CFLAGS])
+  AX_CFLAGS_GCC_OPTION([-fstack-protector-strong], [LLDP_CFLAGS])
+  AX_CFLAGS_GCC_OPTION([-D_FORTIFY_SOURCE=2], [LLDP_CPPFLAGS])
+fi
+if test x"$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"$ax_cv_ld_check_flag__fsanitize_safe_stack" != x"no"; then
+    AX_CFLAGS_GCC_OPTION([-fsanitize=safe-stack], [LLDP_CFLAGS])
+  fi
+fi
+  ])
+
+# Code coverage
+AC_ARG_ENABLE([gcov],
+  AS_HELP_STRING([--enable-gcov],
+    [Enable coverage instrumentation @<:@default=no@:>@]),
+    [gcov="$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_CHECK_DECLS([TAILQ_FIRST, TAILQ_NEXT, TAILQ_FOREACH, TAILQ_EMPTY],[],[],[[#include <sys/queue.h>]])
-AC_CHECK_DECLS([PACKET_ORIGDEV],[],[],[[#include <linux/if_packet.h>]])
-AC_CHECK_DECLS([ADVERTISED_2500baseX_Full],[],[],[[#include <linux/ethtool.h>]])
-AC_CHECK_DECLS([ETHERTYPE_VLAN],[],[],[[#include <net/ethernet.h>]])
+AC_HEADER_RESOLV
+AC_CHECK_HEADERS([valgrind/valgrind.h])
+lldp_CHECK_STDINT
+
+AC_CACHE_SAVE
 
 # Checks for typedefs, structures, and compiler characteristics.
-AC_C_CONST
-AC_CHECK_TYPES([int16_t, u_int16_t, int8_t, u_int8_t, int32_t, u_int32_t],[],[AC_MSG_ERROR([mandatory type not found])])
-AC_CHECK_MEMBERS([netsnmp_tdomain.f_create_from_tstring_new],,,
-       [
-#include <net-snmp/net-snmp-config.h>
-#include <net-snmp/net-snmp-includes.h>
-#include <net-snmp/library/snmp_transport.h>
-])
+lldp_CHECK___PROGNAME
+lldp_CHECK_ALIGNOF
 
 # Checks for library functions.
-AC_REPLACE_FUNCS([strlcpy])
+AC_CONFIG_LIBOBJ_DIR([src/compat])
+AC_FUNC_MALLOC
+AC_FUNC_REALLOC
+AC_FUNC_FORK
 
-AC_PROG_GCC_TRADITIONAL
+# Some functions can be in libbsd
+PKG_CHECK_MODULES([libbsd], [libbsd-overlay], [
+  _save_CFLAGS="$CFLAGS"
+  _save_LIBS="$LIBS"
+  CFLAGS="$CFLAGS $libbsd_CFLAGS"
+  LIBS="$LIBS $libbsd_LIBS"
+  AC_MSG_CHECKING([if libbsd can be linked correctly])
+  AC_TRY_LINK([
+@%:@include <sys/time.h>
+@%:@include <sys/types.h>
+],[],
+    [
+      AC_MSG_RESULT(yes)
+      LLDP_CFLAGS="$LLDP_CFLAGS $libbsd_CFLAGS"
+      LLDP_LDFLAGS="$LLDP_LDFLAGS $libbsd_LIBS"
+    ],[
+      AC_MSG_RESULT(no)
+      CFLAGS="$_save_CFLAGS"
+      LIBS="$_save_LIBS"
+    ])
+], [:])
 
-## NetSNMP
-NETSNMP_CONFIG=No
-if test "${with_snmp}" != "no"; then   
-      AC_PATH_TOOL([NETSNMP_CONFIG], [net-snmp-config], No)
-fi
-if test x"${NETSNMP_CONFIG}" != xNo; then
-   NETSNMP_libs=`${NETSNMP_CONFIG} --agent-libs`
-   
-   AC_CHECK_LIB([netsnmp], [snmp_register_callback],
-       AC_DEFINE_UNQUOTED([HAVE_NETSNMP], 1, [Define to indicate the Net-SNMP library])
-       AC_DEFINE_UNQUOTED([USE_SNMP], 1, [Define to indicate to enable SNMP support]),
-       [], ${NETSNMP_libs})
-
-   if test "${ac_cv_lib_netsnmp_snmp_register_callback}" = "yes"; then
-      AC_SUBST([NETSNMP_LIB],"${NETSNMP_libs}")
+# 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 <resolv.h>], [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
+   if test x"$with_readline" != x"check" -a x"$with_readline" != x"auto"; then
+     if test x"$ax_cv_lib_readline" = x"no"; then
+       AC_MSG_FAILURE([*** no readline support found])
+     fi
    fi
+else
+   ax_cv_lib_readline="no"
 fi
-if test "${with_snmp}" != "no"; then
-   if test "${ac_cv_lib_netsnmp_snmp_register_callback}" != "yes"; then
-         AC_MSG_NOTICE([***])
-         AC_MSG_NOTICE([*** net-snmp libraries not found])
-         AC_MSG_NOTICE([*** Either correct the installation, or run configure])
-         AC_MSG_NOTICE([*** including --without-snmp])
-        exit 1
-   fi
+
+# SNMP
+AC_ARG_WITH([snmp],
+  AS_HELP_STRING(
+    [--with-snmp],
+    [Enable the use of SNMP @<:@default=no@:>@]),
+  [],
+  [with_snmp=no])
+lldp_CHECK_SNMP
+
+# XML
+AC_ARG_WITH([xml],
+  AS_HELP_STRING(
+    [--with-xml],
+    [Enable XML output via libxml2 @<:@default=auto@:>@]),
+  [],
+  [with_xml=auto])
+lldp_CHECK_XML2
+
+# JSON (built-in)
+lldp_ARG_ENABLE([json0], [use of pre-0.9.2 JSON/json-c format], [no])
+
+# Seccomp
+AC_ARG_WITH([seccomp],
+  AS_HELP_STRING(
+    [--with-seccomp],
+    [Enable seccomp support (with libseccomp, experimental) @<:@default=no@:>@]),
+  [],
+  [with_seccomp=no])
+lldp_CHECK_SECCOMP
+
+# OS X launchd support
+lldp_ARG_WITH([launchddaemonsdir], [Directory for launchd configuration file (OSX)],
+                                   [/Library/LaunchDaemons])
+AC_SUBST([launchddaemonsdir], [$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])
+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 $LIBS]", [Linker compiler command])
+
+#######################
+# Output results
+AC_SUBST([LLDP_CFLAGS])
+AC_SUBST([LLDP_CPPFLAGS])
+AC_SUBST([LLDP_LDFLAGS])
+AC_SUBST([LLDP_BIN_LDFLAGS])
+AM_CONDITIONAL([HAVE_CHECK], [test x"$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 <<EOF
+
+------------------ Summary ------------------
+ $PACKAGE_NAME version $PACKAGE_VERSION
+  OS.............: $os
+  Prefix.........: $prefix
+  C Compiler.....: $CC $LLDP_CFLAGS $LLDP_CPPFLAGS $CFLAGS $CPPFLAGS
+  Linker.........: $LD $LLDP_LDFLAGS $LLDP_BIN_LDFLAGS $LDFLAGS $LIBS
+  Libevent.......: $libevent
+  Readline.......: ${ax_cv_lib_readline}
+
+ Optional features:
+  SNMP support...: ${with_snmp-no}
+  CDP............: $enable_cdp
+  FDP............: $enable_fdp
+  EDP............: $enable_edp
+  SONMP..........: $enable_sonmp
+  LLDPMED........: $enable_lldpmed
+  DOT1...........: $enable_dot1
+  DOT3...........: $enable_dot3
+  CUSTOM.........: $enable_custom
+  XML output.....: ${with_xml-no}
+  Oldies support.: $enable_oldies
+  seccomp........: ${with_seccomp-no}
+
+ Privilege separation:
+  Enabled........: $enable_privsep
+  User/group.....: ${with_privsep_user}/${with_privsep_group}
+  Chroot.........: ${with_privsep_chroot}
+
+ Instrumentation (for devs only):
+  Sanitizers.....: ${sanitizers:-none}
+  Coverage.......: ${gcov}
+------------- Compiler version --------------
+$($CC --version || true)
+-------------- Linker version ---------------
+$($LD --version || true)
+---------------------------------------------
+
+Check the above options and compile with:
+ ${MAKE-make}
+
+EOF