]> git.proxmox.com Git - mirror_zfs.git/blobdiff - config/zfs-build.m4
FreeBSD: Add zfs_link_create() error handling
[mirror_zfs.git] / config / zfs-build.m4
index cccd87ff2fe0444d6e8bc513e0905708ea7ebd5f..368684e1c5123be039024f2fce07e1414696e892 100644 (file)
@@ -6,67 +6,237 @@ AC_DEFUN([ZFS_AC_LICENSE], [
        AC_MSG_RESULT([$ZFS_META_LICENSE])
 ])
 
+AC_DEFUN([ZFS_AC_DEBUG_ENABLE], [
+       DEBUG_CFLAGS="-Werror"
+       DEBUG_CPPFLAGS="-DDEBUG -UNDEBUG"
+       DEBUG_LDFLAGS=""
+       DEBUG_ZFS="_with_debug"
+       WITH_DEBUG="true"
+       AC_DEFINE(ZFS_DEBUG, 1, [zfs debugging enabled])
+
+       KERNEL_DEBUG_CFLAGS="-Werror"
+       KERNEL_DEBUG_CPPFLAGS="-DDEBUG -UNDEBUG"
+])
+
+AC_DEFUN([ZFS_AC_DEBUG_DISABLE], [
+       DEBUG_CFLAGS=""
+       DEBUG_CPPFLAGS="-UDEBUG -DNDEBUG"
+       DEBUG_LDFLAGS=""
+       DEBUG_ZFS="_without_debug"
+       WITH_DEBUG=""
+
+       KERNEL_DEBUG_CFLAGS=""
+       KERNEL_DEBUG_CPPFLAGS="-UDEBUG -DNDEBUG"
+])
+
+dnl #
+dnl # When debugging is enabled:
+dnl # - Enable all ASSERTs (-DDEBUG)
+dnl # - Promote all compiler warnings to errors (-Werror)
+dnl #
+dnl # (If INVARIANTS is detected, we need to force DEBUG, or strange panics
+dnl # can ensue.)
+dnl #
 AC_DEFUN([ZFS_AC_DEBUG], [
-       AC_MSG_CHECKING([whether debugging is enabled])
+       AC_MSG_CHECKING([whether assertion support will be enabled])
        AC_ARG_ENABLE([debug],
                [AS_HELP_STRING([--enable-debug],
-               [Enable generic debug support @<:@default=no@:>@])],
+               [Enable compiler and code assertions @<:@default=no@:>@])],
                [],
                [enable_debug=no])
 
-       AS_IF([test "x$enable_debug" = xyes],
-       [
-               KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG -Werror"
-               HOSTCFLAGS="${HOSTCFLAGS} -DDEBUG -Werror"
-               DEBUG_CFLAGS="-DDEBUG -Werror"
-               DEBUG_STACKFLAGS="-fstack-check"
-               DEBUG_ZFS="_with_debug"
-               AC_DEFINE(ZFS_DEBUG, 1, [zfs debugging enabled])
-       ],
-       [
-               KERNELCPPFLAGS="${KERNELCPPFLAGS} -DNDEBUG "
-               HOSTCFLAGS="${HOSTCFLAGS} -DNDEBUG "
-               DEBUG_CFLAGS="-DNDEBUG"
-               DEBUG_STACKFLAGS=""
-               DEBUG_ZFS="_without_debug"
-       ])
+       AS_CASE(["x$enable_debug"],
+               ["xyes"],
+               [ZFS_AC_DEBUG_ENABLE],
+               ["xno"],
+               [ZFS_AC_DEBUG_DISABLE],
+               [AC_MSG_ERROR([Unknown option $enable_debug])])
+
+       AS_CASE(["x$enable_invariants"],
+               ["xyes"],
+               [],
+               ["xno"],
+               [],
+               [ZFS_AC_DEBUG_INVARIANTS_DETECT])
+
+       AS_CASE(["x$enable_invariants"],
+               ["xyes"],
+               [ZFS_AC_DEBUG_ENABLE],
+               ["xno"],
+               [],
+               [AC_MSG_ERROR([Unknown option $enable_invariants])])
 
        AC_SUBST(DEBUG_CFLAGS)
-       AC_SUBST(DEBUG_STACKFLAGS)
+       AC_SUBST(DEBUG_CPPFLAGS)
+       AC_SUBST(DEBUG_LDFLAGS)
        AC_SUBST(DEBUG_ZFS)
+       AC_SUBST(WITH_DEBUG)
+
+       AC_SUBST(KERNEL_DEBUG_CFLAGS)
+       AC_SUBST(KERNEL_DEBUG_CPPFLAGS)
+
        AC_MSG_RESULT([$enable_debug])
 ])
 
-AC_DEFUN([ZFS_AC_DEBUG_DMU_TX], [
-       AC_ARG_ENABLE([debug-dmu-tx],
-               [AS_HELP_STRING([--enable-debug-dmu-tx],
-               [Enable dmu tx validation @<:@default=no@:>@])],
+AC_DEFUN([ZFS_AC_DEBUGINFO_ENABLE], [
+       DEBUG_CFLAGS="$DEBUG_CFLAGS -g -fno-inline $NO_IPA_SRA"
+
+       KERNEL_DEBUG_CFLAGS="$KERNEL_DEBUG_CFLAGS -fno-inline $KERNEL_NO_IPA_SRA"
+       KERNEL_MAKE="$KERNEL_MAKE CONFIG_DEBUG_INFO=y"
+
+       DEBUGINFO_ZFS="_with_debuginfo"
+])
+
+AC_DEFUN([ZFS_AC_DEBUGINFO_DISABLE], [
+       DEBUGINFO_ZFS="_without_debuginfo"
+])
+
+AC_DEFUN([ZFS_AC_DEBUGINFO], [
+       AC_MSG_CHECKING([whether debuginfo support will be forced])
+       AC_ARG_ENABLE([debuginfo],
+               [AS_HELP_STRING([--enable-debuginfo],
+               [Force generation of debuginfo @<:@default=no@:>@])],
                [],
-               [enable_debug_dmu_tx=no])
-
-       AS_IF([test "x$enable_debug_dmu_tx" = xyes],
-       [
-               KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_DMU_TX"
-               DEBUG_DMU_TX="_with_debug_dmu_tx"
-               AC_DEFINE([DEBUG_DMU_TX], [1],
-               [Define to 1 to enabled dmu tx validation])
-       ],
-       [
-               DEBUG_DMU_TX="_without_debug_dmu_tx"
+               [enable_debuginfo=no])
+
+       AS_CASE(["x$enable_debuginfo"],
+               ["xyes"],
+               [ZFS_AC_DEBUGINFO_ENABLE],
+               ["xno"],
+               [ZFS_AC_DEBUGINFO_DISABLE],
+               [AC_MSG_ERROR([Unknown option $enable_debuginfo])])
+
+       AC_SUBST(DEBUG_CFLAGS)
+       AC_SUBST(DEBUGINFO_ZFS)
+
+       AC_SUBST(KERNEL_DEBUG_CFLAGS)
+       AC_SUBST(KERNEL_MAKE)
+
+       AC_MSG_RESULT([$enable_debuginfo])
+])
+
+dnl #
+dnl # Disabled by default, provides basic memory tracking.  Track the total
+dnl # number of bytes allocated with kmem_alloc() and freed with kmem_free().
+dnl # Then at module unload time if any bytes were leaked it will be reported
+dnl # on the console.
+dnl #
+AC_DEFUN([ZFS_AC_DEBUG_KMEM], [
+       AC_MSG_CHECKING([whether basic kmem accounting is enabled])
+       AC_ARG_ENABLE([debug-kmem],
+               [AS_HELP_STRING([--enable-debug-kmem],
+               [Enable basic kmem accounting @<:@default=no@:>@])],
+               [],
+               [enable_debug_kmem=no])
+
+       AS_IF([test "x$enable_debug_kmem" = xyes], [
+               KERNEL_DEBUG_CPPFLAGS="${KERNEL_DEBUG_CPPFLAGS} -DDEBUG_KMEM"
+               DEBUG_KMEM_ZFS="_with_debug_kmem"
+       ], [
+               DEBUG_KMEM_ZFS="_without_debug_kmem"
        ])
 
-       AC_SUBST(DEBUG_DMU_TX)
-       AC_MSG_CHECKING([whether dmu tx validation is enabled])
-       AC_MSG_RESULT([$enable_debug_dmu_tx])
+       AC_SUBST(KERNEL_DEBUG_CPPFLAGS)
+       AC_SUBST(DEBUG_KMEM_ZFS)
+
+       AC_MSG_RESULT([$enable_debug_kmem])
+])
+
+dnl #
+dnl # Disabled by default, provides detailed memory tracking.  This feature
+dnl # also requires --enable-debug-kmem to be set.  When enabled not only will
+dnl # total bytes be tracked but also the location of every kmem_alloc() and
+dnl # kmem_free().  When the module is unloaded a list of all leaked addresses
+dnl # and where they were allocated will be dumped to the console.  Enabling
+dnl # this feature has a significant impact on performance but it makes finding
+dnl # memory leaks straight forward.
+dnl #
+AC_DEFUN([ZFS_AC_DEBUG_KMEM_TRACKING], [
+       AC_MSG_CHECKING([whether detailed kmem tracking is enabled])
+       AC_ARG_ENABLE([debug-kmem-tracking],
+               [AS_HELP_STRING([--enable-debug-kmem-tracking],
+               [Enable detailed kmem tracking  @<:@default=no@:>@])],
+               [],
+               [enable_debug_kmem_tracking=no])
+
+       AS_IF([test "x$enable_debug_kmem_tracking" = xyes], [
+               KERNEL_DEBUG_CPPFLAGS="${KERNEL_DEBUG_CPPFLAGS} -DDEBUG_KMEM_TRACKING"
+               DEBUG_KMEM_TRACKING_ZFS="_with_debug_kmem_tracking"
+       ], [
+               DEBUG_KMEM_TRACKING_ZFS="_without_debug_kmem_tracking"
+       ])
+
+       AC_SUBST(KERNEL_DEBUG_CPPFLAGS)
+       AC_SUBST(DEBUG_KMEM_TRACKING_ZFS)
+
+       AC_MSG_RESULT([$enable_debug_kmem_tracking])
+])
+
+AC_DEFUN([ZFS_AC_DEBUG_INVARIANTS_DETECT_FREEBSD], [
+       AS_IF([sysctl -n kern.conftxt | grep -Fqx $'options\tINVARIANTS'],
+               [enable_invariants="yes"],
+               [enable_invariants="no"])
+])
+
+AC_DEFUN([ZFS_AC_DEBUG_INVARIANTS_DETECT], [
+       AM_COND_IF([BUILD_FREEBSD],
+               [ZFS_AC_DEBUG_INVARIANTS_DETECT_FREEBSD],
+               [enable_invariants="no"])
+])
+
+dnl #
+dnl # Detected for the running kernel by default, enables INVARIANTS features
+dnl # in the FreeBSD kernel module.  This feature must be used when building
+dnl # for a FreeBSD kernel with "options INVARIANTS" in the KERNCONF and must
+dnl # not be used when the INVARIANTS option is absent.
+dnl #
+AC_DEFUN([ZFS_AC_DEBUG_INVARIANTS], [
+       AC_MSG_CHECKING([whether FreeBSD kernel INVARIANTS checks are enabled])
+       AC_ARG_ENABLE([invariants],
+               [AS_HELP_STRING([--enable-invariants],
+               [Enable FreeBSD kernel INVARIANTS checks [[default: detect]]])],
+               [], [ZFS_AC_DEBUG_INVARIANTS_DETECT])
+
+       AS_IF([test "x$enable_invariants" = xyes],
+               [WITH_INVARIANTS="true"],
+               [WITH_INVARIANTS=""])
+       AC_SUBST(WITH_INVARIANTS)
+
+       AC_MSG_RESULT([$enable_invariants])
 ])
 
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS], [
-       ZFS_AC_CONFIG_ALWAYS_NO_UNUSED_BUT_SET_VARIABLE
+       AX_COUNT_CPUS([])
+       AC_SUBST(CPU_COUNT)
+
+       ZFS_AC_CONFIG_ALWAYS_CC_NO_CLOBBERED
+       ZFS_AC_CONFIG_ALWAYS_CC_INFINITE_RECURSION
+       ZFS_AC_CONFIG_ALWAYS_KERNEL_CC_INFINITE_RECURSION
+       ZFS_AC_CONFIG_ALWAYS_CC_IMPLICIT_FALLTHROUGH
+       ZFS_AC_CONFIG_ALWAYS_CC_FRAME_LARGER_THAN
+       ZFS_AC_CONFIG_ALWAYS_CC_NO_FORMAT_TRUNCATION
+       ZFS_AC_CONFIG_ALWAYS_CC_NO_FORMAT_ZERO_LENGTH
+       ZFS_AC_CONFIG_ALWAYS_CC_FORMAT_OVERFLOW
+       ZFS_AC_CONFIG_ALWAYS_CC_NO_OMIT_FRAME_POINTER
+       ZFS_AC_CONFIG_ALWAYS_CC_NO_IPA_SRA
+       ZFS_AC_CONFIG_ALWAYS_KERNEL_CC_NO_IPA_SRA
+       ZFS_AC_CONFIG_ALWAYS_CC_ASAN
+       ZFS_AC_CONFIG_ALWAYS_CC_UBSAN
+       ZFS_AC_CONFIG_ALWAYS_TOOLCHAIN_SIMD
+       ZFS_AC_CONFIG_ALWAYS_SYSTEM
+       ZFS_AC_CONFIG_ALWAYS_ARCH
+       ZFS_AC_CONFIG_ALWAYS_PYTHON
+       ZFS_AC_CONFIG_ALWAYS_PYZFS
+       ZFS_AC_CONFIG_ALWAYS_SED
+       ZFS_AC_CONFIG_ALWAYS_CPPCHECK
+       ZFS_AC_CONFIG_ALWAYS_SHELLCHECK
+       ZFS_AC_CONFIG_ALWAYS_PARALLEL
 ])
 
 AC_DEFUN([ZFS_AC_CONFIG], [
-       TARGET_ASM_DIR=asm-generic
-       AC_SUBST(TARGET_ASM_DIR)
+
+        dnl # Remove the previous build test directory.
+        rm -Rf build
 
        ZFS_CONFIG=all
        AC_ARG_WITH([config],
@@ -74,7 +244,7 @@ AC_DEFUN([ZFS_AC_CONFIG], [
                [Config file 'kernel|user|all|srpm']),
                [ZFS_CONFIG="$withval"])
        AC_ARG_ENABLE([linux-builtin],
-               [AC_HELP_STRING([--enable-linux-builtin],
+               [AS_HELP_STRING([--enable-linux-builtin],
                [Configure for builtin in-tree kernel modules @<:@default=no@:>@])],
                [],
                [enable_linux_builtin=no])
@@ -85,11 +255,24 @@ AC_DEFUN([ZFS_AC_CONFIG], [
 
        ZFS_AC_CONFIG_ALWAYS
 
+       AM_COND_IF([BUILD_LINUX], [
+               AC_ARG_VAR([TEST_JOBS], [simultaneous jobs during configure])
+               if test "x$ac_cv_env_TEST_JOBS_set" != "xset"; then
+                       TEST_JOBS=$CPU_COUNT
+               fi
+               AC_SUBST(TEST_JOBS)
+       ])
+
+       ZFS_INIT_SYSV=
+       ZFS_INIT_SYSTEMD=
+       ZFS_WANT_MODULES_LOAD_D=
+
        case "$ZFS_CONFIG" in
                kernel) ZFS_AC_CONFIG_KERNEL ;;
                user)   ZFS_AC_CONFIG_USER   ;;
-               all)    ZFS_AC_CONFIG_KERNEL
-                       ZFS_AC_CONFIG_USER   ;;
+               all)    ZFS_AC_CONFIG_USER
+                       ZFS_AC_CONFIG_KERNEL ;;
+               dist)                        ;;
                srpm)                        ;;
                *)
                AC_MSG_RESULT([Error!])
@@ -97,11 +280,21 @@ AC_DEFUN([ZFS_AC_CONFIG], [
                              user kernel|user|all|srpm]) ;;
        esac
 
+       AM_CONDITIONAL([INIT_SYSV],           [test "x$ZFS_INIT_SYSV" = "xyes"])
+       AM_CONDITIONAL([INIT_SYSTEMD],        [test "x$ZFS_INIT_SYSTEMD" = "xyes"])
+       AM_CONDITIONAL([WANT_MODULES_LOAD_D], [test "x$ZFS_WANT_MODULES_LOAD_D" = "xyes"])
+
        AM_CONDITIONAL([CONFIG_USER],
-                      [test "$ZFS_CONFIG" = user -o "$ZFS_CONFIG" = all])
+           [test "$ZFS_CONFIG" = user -o "$ZFS_CONFIG" = all])
        AM_CONDITIONAL([CONFIG_KERNEL],
-                      [test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all] &&
-                      [test "x$enable_linux_builtin" != xyes ])
+           [test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all] &&
+           [test "x$enable_linux_builtin" != xyes ])
+       AM_CONDITIONAL([CONFIG_QAT],
+           [test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all] &&
+           [test "x$qatsrc" != x ])
+       AM_CONDITIONAL([WANT_DEVNAME2DEVID], [test "x$user_libudev" = xyes ])
+       AM_CONDITIONAL([WANT_MMAP_LIBAIO], [test "x$user_libaio" = xyes ])
+       AM_CONDITIONAL([PAM_ZFS_ENABLED], [test "x$enable_pam" = xyes])
 ])
 
 dnl #
@@ -138,10 +331,71 @@ AC_DEFUN([ZFS_AC_RPM], [
                AC_MSG_RESULT([$HAVE_RPMBUILD])
        ])
 
-       RPM_DEFINE_COMMON=
-       RPM_DEFINE_UTIL=
-       RPM_DEFINE_KMOD='--define "kernels $(LINUX_VERSION)"'
-       RPM_DEFINE_DKMS=
+       RPM_DEFINE_COMMON='--define "$(DEBUG_ZFS) 1"'
+       RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(DEBUGINFO_ZFS) 1"'
+       RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(DEBUG_KMEM_ZFS) 1"'
+       RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(DEBUG_KMEM_TRACKING_ZFS) 1"'
+       RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(ASAN_ZFS) 1"'
+       RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(UBSAN_ZFS) 1"'
+
+       AS_IF([test "x$enable_debuginfo" = xyes], [
+               RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "__strip /bin/true"'
+       ])
+
+       RPM_DEFINE_UTIL=' --define "_initconfdir $(initconfdir)"'
+
+       dnl # Make the next three RPM_DEFINE_UTIL additions conditional, since
+       dnl # their values may not be set when running:
+       dnl #
+       dnl #   ./configure --with-config=srpm
+       dnl #
+       AS_IF([test -n "$dracutdir" ], [
+               RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' --define "_dracutdir $(dracutdir)"'
+       ])
+       AS_IF([test -n "$udevdir" ], [
+               RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' --define "_udevdir $(udevdir)"'
+       ])
+       AS_IF([test -n "$udevruledir" ], [
+               RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' --define "_udevruledir $(udevruledir)"'
+       ])
+       AS_IF([test -n "$bashcompletiondir" ], [
+               RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' --define "_bashcompletiondir $(bashcompletiondir)"'
+       ])
+       RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_SYSTEMD)'
+       RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_PYZFS)'
+       RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_PAM)'
+       RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_PYTHON_VERSION)'
+       RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_PYTHON_PKG_VERSION)'
+
+       dnl # Override default lib directory on Debian/Ubuntu systems.  The
+       dnl # provided /usr/lib/rpm/platform/<arch>/macros files do not
+       dnl # specify the correct path for multiarch systems as described
+       dnl # by the packaging guidelines.
+       dnl #
+       dnl # https://wiki.ubuntu.com/MultiarchSpec
+       dnl # https://wiki.debian.org/Multiarch/Implementation
+       dnl #
+       AS_IF([test "$DEFAULT_PACKAGE" = "deb"], [
+               MULTIARCH_LIBDIR="lib/$(dpkg-architecture -qDEB_HOST_MULTIARCH)"
+               RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' --define "_lib $(MULTIARCH_LIBDIR)"'
+               AC_SUBST(MULTIARCH_LIBDIR)
+       ])
+
+       dnl # Make RPM_DEFINE_KMOD additions conditional on CONFIG_KERNEL,
+       dnl # since the values will not be set otherwise. The spec files
+       dnl # provide defaults for them.
+       dnl #
+       RPM_DEFINE_KMOD='--define "_wrong_version_format_terminate_build 0"'
+       AM_COND_IF([CONFIG_KERNEL], [
+               RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernels $(LINUX_VERSION)"'
+               RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "ksrc $(LINUX)"'
+               RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kobj $(LINUX_OBJ)"'
+               RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_cc KERNEL_CC=$(KERNEL_CC)"'
+               RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_ld KERNEL_LD=$(KERNEL_LD)"'
+               RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_llvm KERNEL_LLVM=$(KERNEL_LLVM)"'
+       ])
+
+       RPM_DEFINE_DKMS=''
 
        SRPM_DEFINE_COMMON='--define "build_src_rpm 1"'
        SRPM_DEFINE_UTIL=
@@ -151,7 +405,7 @@ AC_DEFUN([ZFS_AC_RPM], [
        RPM_SPEC_DIR="rpm/generic"
        AC_ARG_WITH([spec],
                AS_HELP_STRING([--with-spec=SPEC],
-               [Spec files 'generic|fedora']),
+               [Spec files 'generic|redhat']),
                [RPM_SPEC_DIR="rpm/$withval"])
 
        AC_MSG_CHECKING([whether spec files are available])
@@ -213,6 +467,7 @@ AC_DEFUN([ZFS_AC_DPKG], [
        AC_SUBST(HAVE_DPKGBUILD)
        AC_SUBST(DPKGBUILD)
        AC_SUBST(DPKGBUILD_VERSION)
+       AC_SUBST([CFGOPTS], ["$CFGOPTS"])
 ])
 
 dnl #
@@ -227,6 +482,9 @@ AC_DEFUN([ZFS_AC_ALIEN], [
        AC_MSG_CHECKING([whether $ALIEN is available])
        AS_IF([tmp=$($ALIEN --version 2>/dev/null)], [
                ALIEN_VERSION=$(echo $tmp | $AWK '{ print $[3] }')
+               ALIEN_MAJOR=$(echo ${ALIEN_VERSION} | $AWK -F'.' '{ print $[1] }')
+               ALIEN_MINOR=$(echo ${ALIEN_VERSION} | $AWK -F'.' '{ print $[2] }')
+               ALIEN_POINT=$(echo ${ALIEN_VERSION} | $AWK -F'.' '{ print $[3] }')
                HAVE_ALIEN=yes
                AC_MSG_RESULT([$HAVE_ALIEN ($ALIEN_VERSION)])
        ],[
@@ -237,6 +495,9 @@ AC_DEFUN([ZFS_AC_ALIEN], [
        AC_SUBST(HAVE_ALIEN)
        AC_SUBST(ALIEN)
        AC_SUBST(ALIEN_VERSION)
+       AC_SUBST(ALIEN_MAJOR)
+       AC_SUBST(ALIEN_MINOR)
+       AC_SUBST(ALIEN_POINT)
 ])
 
 dnl #
@@ -244,73 +505,137 @@ dnl # Using the VENDOR tag from config.guess set the default
 dnl # package type for 'make pkg': (rpm | deb | tgz)
 dnl #
 AC_DEFUN([ZFS_AC_DEFAULT_PACKAGE], [
-       AC_MSG_CHECKING([linux distribution])
-       if test -f /etc/toss-release ; then
-               VENDOR=toss ;
-       elif test -f /etc/fedora-release ; then
-               VENDOR=fedora ;
-       elif test -f /etc/redhat-release ; then
-               VENDOR=redhat ;
-       elif test -f /etc/gentoo-release ; then
-               VENDOR=gentoo ;
-       elif test -f /etc/arch-release ; then
-               VENDOR=arch ;
-       elif test -f /etc/SuSE-release ; then
-               VENDOR=sles ;
-       elif test -f /etc/slackware-version ; then
-               VENDOR=slackware ;
-       elif test -f /etc/lunar.release ; then
-               VENDOR=lunar ;
-       elif test -f /etc/lsb-release ; then
-               VENDOR=ubuntu ;
-       elif test -f /etc/debian_version ; then
-               VENDOR=debian ;
-       else
-               VENDOR= ;
-       fi
+       AC_MSG_CHECKING([os distribution])
+       AC_ARG_WITH([vendor],
+               [AS_HELP_STRING([--with-vendor],
+                       [Distribution vendor @<:@default=check@:>@])],
+               [with_vendor=$withval],
+               [with_vendor=check])
+       AS_IF([test "x$with_vendor" = "xcheck"],[
+               if test -f /etc/alpine-release ; then
+                       VENDOR=alpine ;
+               elif test -f /etc/arch-release ; then
+                       VENDOR=arch ;
+               elif test -f /etc/fedora-release ; then
+                       VENDOR=fedora ;
+               elif test -f /bin/freebsd-version ; then
+                       VENDOR=freebsd ;
+               elif test -f /etc/gentoo-release ; then
+                       VENDOR=gentoo ;
+               elif test -f /etc/lunar.release ; then
+                       VENDOR=lunar ;
+               elif test -f /etc/openEuler-release ; then
+                       VENDOR=openeuler ;
+               elif test -f /etc/SuSE-release ; then
+                       VENDOR=sles ;
+               elif test -f /etc/slackware-version ; then
+                       VENDOR=slackware ;
+               elif test -f /etc/toss-release ; then
+                       VENDOR=toss ;
+               elif test -f /etc/lsb-release ; then
+                       VENDOR=ubuntu ;
+               # put debian and redhat last as derivatives may have also their file
+               elif test -f /etc/debian_version ; then
+                       VENDOR=debian ;
+               elif test -f /etc/redhat-release ; then
+                       VENDOR=redhat ;
+               else
+                       VENDOR= ;
+               fi],
+               [ test "x${with_vendor}" != x],[
+                       VENDOR="$with_vendor" ],
+               [ VENDOR= ; ]
+       )
        AC_MSG_RESULT([$VENDOR])
        AC_SUBST(VENDOR)
 
        AC_MSG_CHECKING([default package type])
        case "$VENDOR" in
-               toss)       DEFAULT_PACKAGE=rpm  ;;
-               redhat)     DEFAULT_PACKAGE=rpm  ;;
-               fedora)     DEFAULT_PACKAGE=rpm  ;;
-               gentoo)     DEFAULT_PACKAGE=tgz  ;;
-               arch)       DEFAULT_PACKAGE=tgz  ;;
-               sles)       DEFAULT_PACKAGE=rpm  ;;
-               slackware)  DEFAULT_PACKAGE=tgz  ;;
-               lunar)      DEFAULT_PACKAGE=tgz  ;;
-               ubuntu)     DEFAULT_PACKAGE=deb  ;;
-               debian)     DEFAULT_PACKAGE=deb  ;;
-               *)          DEFAULT_PACKAGE=rpm  ;;
+               alpine|arch|gentoo|lunar|slackware)
+                       DEFAULT_PACKAGE=tgz  ;;
+               debian|ubuntu)
+                       DEFAULT_PACKAGE=deb  ;;
+               freebsd)
+                       DEFAULT_PACKAGE=pkg  ;;
+               *)
+               # fedora|openeuler|redhat|sles|toss
+                       DEFAULT_PACKAGE=rpm  ;;
        esac
-
        AC_MSG_RESULT([$DEFAULT_PACKAGE])
        AC_SUBST(DEFAULT_PACKAGE)
 
-       DEFAULT_INIT_DIR=$sysconfdir/init.d
        AC_MSG_CHECKING([default init directory])
-       AC_MSG_RESULT([$DEFAULT_INIT_DIR])
-       AC_SUBST(DEFAULT_INIT_DIR)
+       case "$VENDOR" in
+               freebsd)    initdir=$sysconfdir/rc.d  ;;
+               *)          initdir=$sysconfdir/init.d;;
+       esac
+       AC_MSG_RESULT([$initdir])
+       AC_SUBST(initdir)
+
+       AC_MSG_CHECKING([default shell])
+       case "$VENDOR" in
+               alpine|gentoo)  DEFAULT_INIT_SHELL=/sbin/openrc-run
+                               IS_SYSV_RC=false        ;;
+               *)              DEFAULT_INIT_SHELL=/bin/sh
+                               IS_SYSV_RC=true         ;;
+       esac
 
-       AC_MSG_CHECKING([default init script type])
+       AC_MSG_RESULT([$DEFAULT_INIT_SHELL])
+       AC_SUBST(DEFAULT_INIT_SHELL)
+       AC_SUBST(IS_SYSV_RC)
+
+       AC_MSG_CHECKING([default nfs server init script])
+       AS_IF([test "$VENDOR" = "debian"],
+               [DEFAULT_INIT_NFS_SERVER="nfs-kernel-server"],
+               [DEFAULT_INIT_NFS_SERVER="nfs"]
+       )
+       AC_MSG_RESULT([$DEFAULT_INIT_NFS_SERVER])
+       AC_SUBST(DEFAULT_INIT_NFS_SERVER)
+
+       AC_MSG_CHECKING([default init config directory])
        case "$VENDOR" in
-               toss)       DEFAULT_INIT_SCRIPT=redhat ;;
-               redhat)     DEFAULT_INIT_SCRIPT=redhat ;;
-               fedora)     DEFAULT_INIT_SCRIPT=fedora ;;
-               gentoo)     DEFAULT_INIT_SCRIPT=gentoo ;;
-               arch)       DEFAULT_INIT_SCRIPT=lsb    ;;
-               sles)       DEFAULT_INIT_SCRIPT=lsb    ;;
-               slackware)  DEFAULT_INIT_SCRIPT=lsb    ;;
-               lunar)      DEFAULT_INIT_SCRIPT=lunar  ;;
-               ubuntu)     DEFAULT_INIT_SCRIPT=lsb    ;;
-               debian)     DEFAULT_INIT_SCRIPT=lsb    ;;
-               *)          DEFAULT_INIT_SCRIPT=lsb    ;;
+               alpine|gentoo)
+                       initconfdir=/etc/conf.d
+                       ;;
+               fedora|openeuler|redhat|sles|toss)
+                       initconfdir=/etc/sysconfig
+                       ;;
+               freebsd)
+                       initconfdir=$sysconfdir/rc.conf.d
+                       ;;
+               *)
+               # debian|ubuntu
+                       initconfdir=/etc/default
+                       ;;
        esac
+       AC_MSG_RESULT([$initconfdir])
+       AC_SUBST(initconfdir)
+
+       AC_MSG_CHECKING([whether initramfs-tools is available])
+       if test -d /usr/share/initramfs-tools ; then
+               RPM_DEFINE_INITRAMFS='--define "_initramfs 1"'
+               AC_MSG_RESULT([yes])
+       else
+               RPM_DEFINE_INITRAMFS=''
+               AC_MSG_RESULT([no])
+       fi
+       AC_SUBST(RPM_DEFINE_INITRAMFS)
+
+       AC_MSG_CHECKING([default bash completion directory])
+       case "$VENDOR" in
+               alpine|debian|gentoo|ubuntu)
+                       bashcompletiondir=/usr/share/bash-completion/completions
+                       ;;
+               freebsd)
+                       bashcompletiondir=$sysconfdir/bash_completion.d
+                       ;;
+               *)
+                       bashcompletiondir=/etc/bash_completion.d
+                       ;;
+       esac
+       AC_MSG_RESULT([$bashcompletiondir])
+       AC_SUBST(bashcompletiondir)
 
-       AC_MSG_RESULT([$DEFAULT_INIT_SCRIPT])
-       AC_SUBST(DEFAULT_INIT_SCRIPT)
 ])
 
 dnl #
@@ -318,7 +643,9 @@ dnl # Default ZFS package configuration
 dnl #
 AC_DEFUN([ZFS_AC_PACKAGE], [
        ZFS_AC_DEFAULT_PACKAGE
-       ZFS_AC_RPM
-       ZFS_AC_DPKG
-       ZFS_AC_ALIEN
+       AS_IF([test x$VENDOR != xfreebsd], [
+               ZFS_AC_RPM
+               ZFS_AC_DPKG
+               ZFS_AC_ALIEN
+       ])
 ])