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dnl #
dnl # ZFS_AC_PYTHON_MODULE(module_name, [action-if-true], [action-if-false])
dnl #
dnl # Checks for Python module. Freely inspired by AX_PYTHON_MODULE
dnl # https://www.gnu.org/software/autoconf-archive/ax_python_module.html
dnl # Required by ZFS_AC_CONFIG_ALWAYS_PYZFS.
dnl #
AC_DEFUN([ZFS_AC_PYTHON_MODULE], [
PYTHON_NAME=${PYTHON##*/}
AC_MSG_CHECKING([for $PYTHON_NAME module: $1])
AS_IF([$PYTHON -c "import $1" 2>/dev/null], [
AC_MSG_RESULT(yes)
m4_ifvaln([$2], [$2])
], [
AC_MSG_RESULT(no)
m4_ifvaln([$3], [$3])
])
])
dnl #
dnl # Determines if pyzfs can be built, requires Python 3.6 or later.
dnl #
AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_PYZFS], [
AC_ARG_ENABLE([pyzfs],
AS_HELP_STRING([--enable-pyzfs],
[install libzfs_core python bindings @<:@default=check@:>@]),
[enable_pyzfs=$enableval],
[enable_pyzfs=check])
dnl #
dnl # Packages for pyzfs specifically enabled/disabled.
dnl #
AS_IF([test "x$enable_pyzfs" != xcheck], [
AS_IF([test "x$enable_pyzfs" = xyes], [
DEFINE_PYZFS='--with pyzfs'
], [
DEFINE_PYZFS='--without pyzfs'
])
], [
AS_IF([test "$PYTHON" != :], [
DEFINE_PYZFS=''
], [
enable_pyzfs=no
DEFINE_PYZFS='--without pyzfs'
])
])
AC_SUBST(DEFINE_PYZFS)
dnl #
dnl # Autodetection disables pyzfs if kernel or srpm config
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck], [
AS_IF([test "x$ZFS_CONFIG" = xkernel -o "x$ZFS_CONFIG" = xsrpm ], [
enable_pyzfs=no
AC_MSG_NOTICE([Disabling pyzfs for kernel/srpm config])
])
])
dnl #
dnl # Python "packaging" (or, failing that, "distlib") module is required to build and install pyzfs
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck -o "x$enable_pyzfs" = xyes], [
ZFS_AC_PYTHON_MODULE([packaging], [], [
ZFS_AC_PYTHON_MODULE([distlib], [], [
AS_IF([test "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("Python $PYTHON_VERSION packaging and distlib modules are not installed")
], [test "x$enable_pyzfs" != xno], [
enable_pyzfs=no
])
])
])
])
dnl #
dnl # Require python3-devel libraries
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck -o "x$enable_pyzfs" = xyes], [
AS_CASE([$PYTHON_VERSION],
[3.*], [PYTHON_REQUIRED_VERSION=">= '3.6.0'"],
[AC_MSG_ERROR("Python $PYTHON_VERSION unknown")]
)
AX_PYTHON_DEVEL([$PYTHON_REQUIRED_VERSION], [
AS_IF([test "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("Python $PYTHON_REQUIRED_VERSION development library is not installed")
], [test "x$enable_pyzfs" != xno], [
enable_pyzfs=no
])
])
])
dnl #
dnl # Python "setuptools" module is required to build and install pyzfs
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck -o "x$enable_pyzfs" = xyes], [
ZFS_AC_PYTHON_MODULE([setuptools], [], [
AS_IF([test "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("Python $PYTHON_VERSION setuptools is not installed")
], [test "x$enable_pyzfs" != xno], [
enable_pyzfs=no
])
])
])
dnl #
dnl # Python "cffi" module is required to run pyzfs
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck -o "x$enable_pyzfs" = xyes], [
ZFS_AC_PYTHON_MODULE([cffi], [], [
AS_IF([test "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("Python $PYTHON_VERSION cffi is not installed")
], [test "x$enable_pyzfs" != xno], [
enable_pyzfs=no
])
])
])
dnl #
dnl # Set enable_pyzfs to 'yes' if every check passed
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck], [enable_pyzfs=yes])
AM_CONDITIONAL([PYZFS_ENABLED], [test "x$enable_pyzfs" = xyes])
AC_SUBST([PYZFS_ENABLED], [$enable_pyzfs])
AC_SUBST(pythonsitedir, [$PYTHON_SITE_PKG])
AC_MSG_CHECKING([whether to enable pyzfs: ])
AC_MSG_RESULT($enable_pyzfs)
])
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