eclass/python-single-r1.eclass

   1 # Copyright 1999-2018 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3
   4 # @ECLASS: python-single-r1.eclass
   5 # @MAINTAINER:
   6 # Python team <python@gentoo.org>
   7 # @AUTHOR:
   8 # Author: Michał Górny <mgorny@gentoo.org>
   9 # Based on work of: Krzysztof Pawlik <nelchael@gentoo.org>
  10 # @SUPPORTED_EAPIS: 5 6 7
  11 # @BLURB: An eclass for Python packages not installed for multiple implementations.
  12 # @DESCRIPTION:
  13 # An extension of the python-r1 eclass suite for packages which
  14 # don't support being installed for multiple Python implementations.
  15 # This mostly includes tools embedding Python.
  16 #
  17 # This eclass extends the IUSE and REQUIRED_USE set by python-r1
  18 # to request the PYTHON_SINGLE_TARGET when the inheriting ebuild
  19 # can be supported by more than one Python implementation. It also
  20 # replaces PYTHON_USEDEP and PYTHON_DEPS with a more suitable form.
  21 #
  22 # Please note that packages support multiple Python implementations
  23 # (using python-r1 eclass) can not depend on packages not supporting
  24 # them (using this eclass).
  25 #
  26 # Please note that python-single-r1 will always inherit python-utils-r1
  27 # as well. Thus, all the functions defined there can be used
  28 # in the packages using python-single-r1, and there is no need ever
  29 # to inherit both.
  30 #
  31 # For more information, please see the wiki:
  32 # https://wiki.gentoo.org/wiki/Project:Python/python-single-r1
  33
  34 case "${EAPI:-0}" in
  35         0|1|2|3|4)
  36                 die "Unsupported EAPI=${EAPI:-0} (too old) for ${ECLASS}"
  37                 ;;
  38         5|6|7)
  39                 # EAPI=5 is required for sane USE_EXPAND dependencies
  40                 ;;
  41         *)
  42                 die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
  43                 ;;
  44 esac
  45
  46 if [[ ! ${_PYTHON_SINGLE_R1} ]]; then
  47
  48 if [[ ${_PYTHON_R1} ]]; then
  49         die 'python-single-r1.eclass can not be used with python-r1.eclass.'
  50 elif [[ ${_PYTHON_ANY_R1} ]]; then
  51         die 'python-single-r1.eclass can not be used with python-any-r1.eclass.'
  52 fi
  53
  54 inherit python-utils-r1
  55
  56 fi
  57
  58 EXPORT_FUNCTIONS pkg_setup
  59
  60 # @ECLASS-VARIABLE: PYTHON_COMPAT
  61 # @REQUIRED
  62 # @DESCRIPTION:
  63 # This variable contains a list of Python implementations the package
  64 # supports. It must be set before the `inherit' call. It has to be
  65 # an array.
  66 #
  67 # Example:
  68 # @CODE
  69 # PYTHON_COMPAT=( python2_7 python3_3 python3_4 )
  70 # @CODE
  71 #
  72 # Please note that you can also use bash brace expansion if you like:
  73 # @CODE
  74 # PYTHON_COMPAT=( python2_7 python3_{3,4} )
  75 # @CODE
  76
  77 # @ECLASS-VARIABLE: PYTHON_COMPAT_OVERRIDE
  78 # @INTERNAL
  79 # @DESCRIPTION:
  80 # This variable can be used when working with ebuilds to override
  81 # the in-ebuild PYTHON_COMPAT. It is a string naming the implementation
  82 # which package will be built for. It needs to be specified
  83 # in the calling environment, and not in ebuilds.
  84 #
  85 # It should be noted that in order to preserve metadata immutability,
  86 # PYTHON_COMPAT_OVERRIDE does not affect IUSE nor dependencies.
  87 # The state of PYTHON_TARGETS and PYTHON_SINGLE_TARGET is ignored,
  88 # and the implementation in PYTHON_COMPAT_OVERRIDE is built instead.
  89 # Dependencies need to be satisfied manually.
  90 #
  91 # Example:
  92 # @CODE
  93 # PYTHON_COMPAT_OVERRIDE='pypy' emerge -1v dev-python/bar
  94 # @CODE
  95
  96 # @ECLASS-VARIABLE: PYTHON_REQ_USE
  97 # @DEFAULT_UNSET
  98 # @DESCRIPTION:
  99 # The list of USEflags required to be enabled on the chosen Python
 100 # implementations, formed as a USE-dependency string. It should be valid
 101 # for all implementations in PYTHON_COMPAT, so it may be necessary to
 102 # use USE defaults.
 103 #
 104 # This should be set before calling `inherit'.
 105 #
 106 # Example:
 107 # @CODE
 108 # PYTHON_REQ_USE="gdbm,ncurses(-)?"
 109 # @CODE
 110 #
 111 # It will cause the Python dependencies to look like:
 112 # @CODE
 113 # python_single_target_pythonX_Y? ( dev-lang/python:X.Y[gdbm,ncurses(-)?] )
 114 # @CODE
 115
 116 # @ECLASS-VARIABLE: PYTHON_DEPS
 117 # @DESCRIPTION:
 118 # This is an eclass-generated Python dependency string for all
 119 # implementations listed in PYTHON_COMPAT.
 120 #
 121 # The dependency string is conditional on PYTHON_SINGLE_TARGET.
 122 #
 123 # Example use:
 124 # @CODE
 125 # RDEPEND="${PYTHON_DEPS}
 126 #       dev-foo/mydep"
 127 # DEPEND="${RDEPEND}"
 128 # @CODE
 129 #
 130 # Example value:
 131 # @CODE
 132 # dev-lang/python-exec:=
 133 # python_single_target_python2_7? ( dev-lang/python:2.7[gdbm] )
 134 # python_single_target_pypy? ( virtual/pypy[gdbm] )
 135 # @CODE
 136
 137 # @ECLASS-VARIABLE: PYTHON_USEDEP
 138 # @DESCRIPTION:
 139 # This is an eclass-generated USE-dependency string which can be used to
 140 # depend on another Python package being built for the same Python
 141 # implementations.
 142 #
 143 # The generate USE-flag list is compatible with packages using python-r1,
 144 # python-single-r1 and python-distutils-ng eclasses. It must not be used
 145 # on packages using python.eclass.
 146 #
 147 # Example use:
 148 # @CODE
 149 # RDEPEND="dev-python/foo[${PYTHON_USEDEP}]"
 150 # @CODE
 151 #
 152 # Example value:
 153 # @CODE
 154 # python_targets_python2_7(-)?,python_single_target_python3_4(+)?
 155 # @CODE
 156
 157 # @ECLASS-VARIABLE: PYTHON_REQUIRED_USE
 158 # @DESCRIPTION:
 159 # This is an eclass-generated required-use expression which ensures the following
 160 # when more than one python implementation is possible:
 161 # 1. Exactly one PYTHON_SINGLE_TARGET value has been enabled.
 162 # 2. The selected PYTHON_SINGLE_TARGET value is enabled in PYTHON_TARGETS.
 163 #
 164 # This expression should be utilized in an ebuild by including it in
 165 # REQUIRED_USE, optionally behind a use flag.
 166 #
 167 # Example use:
 168 # @CODE
 169 # REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
 170 # @CODE
 171 #
 172 # Example value:
 173 # @CODE
 174 # python_single_target_python2_7? ( python_targets_python2_7 )
 175 # python_single_target_python3_3? ( python_targets_python3_3 )
 176 # ^^ ( python_single_target_python2_7 python_single_target_python3_3 )
 177 # @CODE
 178
 179 _python_single_set_globals() {
 180         _python_set_impls
 181
 182         local i PYTHON_PKG_DEP
 183
 184         local flags_mt=( "${_PYTHON_SUPPORTED_IMPLS[@]/#/python_targets_}" )
 185         local flags=( "${_PYTHON_SUPPORTED_IMPLS[@]/#/python_single_target_}" )
 186         local unflags=( "${_PYTHON_UNSUPPORTED_IMPLS[@]/#/-python_single_target_}" )
 187
 188         local optflags=${flags_mt[@]/%/(-)?},${unflags[@]/%/(-)}
 189
 190         IUSE="${flags_mt[*]}"
 191
 192         local deps requse usedep
 193         if [[ ${#_PYTHON_SUPPORTED_IMPLS[@]} -eq 1 ]]; then
 194                 # There is only one supported implementation; set IUSE and other
 195                 # variables without PYTHON_SINGLE_TARGET.
 196                 requse=${flags_mt[*]}
 197                 python_export "${_PYTHON_SUPPORTED_IMPLS[0]}" PYTHON_PKG_DEP
 198                 deps="${flags_mt[*]}? ( ${PYTHON_PKG_DEP} ) "
 199                 # Force on the python_single_target_* flag for this impl, so
 200                 # that any dependencies that inherit python-single-r1 and
 201                 # happen to have multiple implementations will still need
 202                 # to bound by the implementation used by this package.
 203                 optflags+=,${flags[0]/%/(+)}
 204         else
 205                 # Multiple supported implementations; honor PYTHON_SINGLE_TARGET.
 206                 IUSE+=" ${flags[*]}"
 207                 requse="^^ ( ${flags[*]} )"
 208                 # Ensure deps honor the same python_single_target_* flag as is set
 209                 # on this package.
 210                 optflags+=,${flags[@]/%/(+)?}
 211
 212                 for i in "${_PYTHON_SUPPORTED_IMPLS[@]}"; do
 213                         # The chosen targets need to be in PYTHON_TARGETS as well.
 214                         # This is in order to enforce correct dependencies on packages
 215                         # supporting multiple implementations.
 216                         requse+=" python_single_target_${i}? ( python_targets_${i} )"
 217
 218                         python_export "${i}" PYTHON_PKG_DEP
 219                         deps+="python_single_target_${i}? ( ${PYTHON_PKG_DEP} ) "
 220                 done
 221         fi
 222         usedep=${optflags// /,}
 223
 224         # 1) well, python-exec would suffice as an RDEP
 225         # but no point in making this overcomplex, BDEP doesn't hurt anyone
 226         # 2) python-exec should be built with all targets forced anyway
 227         # but if new targets were added, we may need to force a rebuild
 228         if [[ ${_PYTHON_WANT_PYTHON_EXEC2} == 0 ]]; then
 229                 die "python-exec:0 is no longer supported, please fix your ebuild to work with python-exec:2"
 230         else
 231                 deps+=">=dev-lang/python-exec-2:=[${usedep}]"
 232         fi
 233
 234         if [[ ${PYTHON_DEPS+1} ]]; then
 235                 if [[ ${PYTHON_DEPS} != "${deps}" ]]; then
 236                         eerror "PYTHON_DEPS have changed between inherits (PYTHON_REQ_USE?)!"
 237                         eerror "Before: ${PYTHON_DEPS}"
 238                         eerror "Now   : ${deps}"
 239                         die "PYTHON_DEPS integrity check failed"
 240                 fi
 241
 242                 # these two are formality -- they depend on PYTHON_COMPAT only
 243                 if [[ ${PYTHON_REQUIRED_USE} != ${requse} ]]; then
 244                         eerror "PYTHON_REQUIRED_USE have changed between inherits!"
 245                         eerror "Before: ${PYTHON_REQUIRED_USE}"
 246                         eerror "Now   : ${requse}"
 247                         die "PYTHON_REQUIRED_USE integrity check failed"
 248                 fi
 249
 250                 if [[ ${PYTHON_USEDEP} != "${usedep}" ]]; then
 251                         eerror "PYTHON_USEDEP have changed between inherits!"
 252                         eerror "Before: ${PYTHON_USEDEP}"
 253                         eerror "Now   : ${usedep}"
 254                         die "PYTHON_USEDEP integrity check failed"
 255                 fi
 256         else
 257                 PYTHON_DEPS=${deps}
 258                 PYTHON_REQUIRED_USE=${requse}
 259                 PYTHON_USEDEP=${usedep}
 260                 readonly PYTHON_DEPS PYTHON_REQUIRED_USE PYTHON_USEDEP
 261         fi
 262 }
 263 _python_single_set_globals
 264 unset -f _python_single_set_globals
 265
 266 if [[ ! ${_PYTHON_SINGLE_R1} ]]; then
 267
 268 # @FUNCTION: python_gen_usedep
 269 # @USAGE: <pattern> [...]
 270 # @DESCRIPTION:
 271 # Output a USE dependency string for Python implementations which
 272 # are both in PYTHON_COMPAT and match any of the patterns passed
 273 # as parameters to the function.
 274 #
 275 # The patterns can be either fnmatch-style patterns (matched via bash
 276 # == operator against PYTHON_COMPAT values) or '-2' / '-3' to indicate
 277 # appropriately all enabled Python 2/3 implementations (alike
 278 # python_is_python3). Remember to escape or quote the fnmatch patterns
 279 # to prevent accidental shell filename expansion.
 280 #
 281 # When all implementations are requested, please use ${PYTHON_USEDEP}
 282 # instead. Please also remember to set an appropriate REQUIRED_USE
 283 # to avoid ineffective USE flags.
 284 #
 285 # Example:
 286 # @CODE
 287 # PYTHON_COMPAT=( python{2_7,3_4} )
 288 # DEPEND="doc? ( dev-python/epydoc[$(python_gen_usedep 'python2*')] )"
 289 # @CODE
 290 #
 291 # It will cause the dependency to look like:
 292 # @CODE
 293 # DEPEND="doc? ( dev-python/epydoc[python_targets_python2_7(-)?,...] )"
 294 # @CODE
 295 python_gen_usedep() {
 296         debug-print-function ${FUNCNAME} "${@}"
 297
 298         local impl matches=()
 299
 300         for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}"; do
 301                 if _python_impl_matches "${impl}" "${@}"; then
 302                         matches+=(
 303                                 "python_targets_${impl}(-)?"
 304                                 "python_single_target_${impl}(+)?"
 305                         )
 306                 fi
 307         done
 308
 309         [[ ${matches[@]} ]] || die "No supported implementations match python_gen_usedep patterns: ${@}"
 310
 311         local out=${matches[@]}
 312         echo "${out// /,}"
 313 }
 314
 315 # @FUNCTION: python_gen_useflags
 316 # @USAGE: <pattern> [...]
 317 # @DESCRIPTION:
 318 # Output a list of USE flags for Python implementations which
 319 # are both in PYTHON_COMPAT and match any of the patterns passed
 320 # as parameters to the function.
 321 #
 322 # The patterns can be either fnmatch-style patterns (matched via bash
 323 # == operator against PYTHON_COMPAT values) or '-2' / '-3' to indicate
 324 # appropriately all enabled Python 2/3 implementations (alike
 325 # python_is_python3). Remember to escape or quote the fnmatch patterns
 326 # to prevent accidental shell filename expansion.
 327 #
 328 # Example:
 329 # @CODE
 330 # PYTHON_COMPAT=( python{2_7,3_4} )
 331 # REQUIRED_USE="doc? ( ^^ ( $(python_gen_useflags 'python2*') ) )"
 332 # @CODE
 333 #
 334 # It will cause the variable to look like:
 335 # @CODE
 336 # REQUIRED_USE="doc? ( ^^ ( python_single_target_python2_7 ) )"
 337 # @CODE
 338 python_gen_useflags() {
 339         debug-print-function ${FUNCNAME} "${@}"
 340
 341         local flag_prefix impl matches=()
 342
 343         if [[ ${#_PYTHON_SUPPORTED_IMPLS[@]} -eq 1 ]]; then
 344                 flag_prefix=python_targets
 345         else
 346                 flag_prefix=python_single_target
 347         fi
 348
 349         for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}"; do
 350                 if _python_impl_matches "${impl}" "${@}"; then
 351                         matches+=( "${flag_prefix}_${impl}" )
 352                 fi
 353         done
 354
 355         echo "${matches[@]}"
 356 }
 357
 358 # @FUNCTION: python_gen_cond_dep
 359 # @USAGE: <dependency> <pattern> [...]
 360 # @DESCRIPTION:
 361 # Output a list of <dependency>-ies made conditional to USE flags
 362 # of Python implementations which are both in PYTHON_COMPAT and match
 363 # any of the patterns passed as the remaining parameters.
 364 #
 365 # The patterns can be either fnmatch-style patterns (matched via bash
 366 # == operator against PYTHON_COMPAT values) or '-2' / '-3' to indicate
 367 # appropriately all enabled Python 2/3 implementations (alike
 368 # python_is_python3). Remember to escape or quote the fnmatch patterns
 369 # to prevent accidental shell filename expansion.
 370 #
 371 # In order to enforce USE constraints on the packages, verbatim
 372 # '${PYTHON_USEDEP}' (quoted!) may be placed in the dependency
 373 # specification. It will get expanded within the function into a proper
 374 # USE dependency string.
 375 #
 376 # Example:
 377 # @CODE
 378 # PYTHON_COMPAT=( python{2_7,3_{3,4}} pypy )
 379 # RDEPEND="$(python_gen_cond_dep \
 380 #   'dev-python/unittest2[${PYTHON_USEDEP}]' python2_7 pypy )"
 381 # @CODE
 382 #
 383 # It will cause the variable to look like:
 384 # @CODE
 385 # RDEPEND="python_single_target_python2_7? (
 386 #     dev-python/unittest2[python_targets_python2_7(-)?,...] )
 387 #       python_single_target_pypy? (
 388 #     dev-python/unittest2[python_targets_pypy(-)?,...] )"
 389 # @CODE
 390 python_gen_cond_dep() {
 391         debug-print-function ${FUNCNAME} "${@}"
 392
 393         local flag_prefix impl matches=()
 394
 395         if [[ ${#_PYTHON_SUPPORTED_IMPLS[@]} -eq 1 ]]; then
 396                 flag_prefix=python_targets
 397         else
 398                 flag_prefix=python_single_target
 399         fi
 400
 401         local dep=${1}
 402         shift
 403
 404         for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}"; do
 405                 if _python_impl_matches "${impl}" "${@}"; then
 406                         # substitute ${PYTHON_USEDEP} if used
 407                         # (since python_gen_usedep() will not return ${PYTHON_USEDEP}
 408                         #  the code is run at most once)
 409                         if [[ ${dep} == *'${PYTHON_USEDEP}'* ]]; then
 410                                 local usedep=$(python_gen_usedep "${@}")
 411                                 dep=${dep//\$\{PYTHON_USEDEP\}/${usedep}}
 412                         fi
 413
 414                         matches+=( "${flag_prefix}_${impl}? ( ${dep} )" )
 415                 fi
 416         done
 417
 418         echo "${matches[@]}"
 419 }
 420
 421 # @FUNCTION: python_gen_impl_dep
 422 # @USAGE: [<requested-use-flags> [<impl-pattern>...]]
 423 # @DESCRIPTION:
 424 # Output a dependency on Python implementations with the specified USE
 425 # dependency string appended, or no USE dependency string if called
 426 # without the argument (or with empty argument). If any implementation
 427 # patterns are passed, the output dependencies will be generated only
 428 # for the implementations matching them.
 429 #
 430 # The patterns can be either fnmatch-style patterns (matched via bash
 431 # == operator against PYTHON_COMPAT values) or '-2' / '-3' to indicate
 432 # appropriately all enabled Python 2/3 implementations (alike
 433 # python_is_python3). Remember to escape or quote the fnmatch patterns
 434 # to prevent accidental shell filename expansion.
 435 #
 436 # Use this function when you need to request different USE flags
 437 # on the Python interpreter depending on package's USE flags. If you
 438 # only need a single set of interpreter USE flags, just set
 439 # PYTHON_REQ_USE and use ${PYTHON_DEPS} globally.
 440 #
 441 # Example:
 442 # @CODE
 443 # PYTHON_COMPAT=( python{2_7,3_{3,4}} pypy )
 444 # RDEPEND="foo? ( $(python_gen_impl_dep 'xml(+)') )"
 445 # @CODE
 446 #
 447 # It will cause the variable to look like:
 448 # @CODE
 449 # RDEPEND="foo? (
 450 #   python_single_target_python2_7? (
 451 #     dev-lang/python:2.7[xml(+)] )
 452 #       python_single_target_pypy? (
 453 #     dev-python/pypy[xml(+)] ) )"
 454 # @CODE
 455 python_gen_impl_dep() {
 456         debug-print-function ${FUNCNAME} "${@}"
 457
 458         local impl pattern
 459         local matches=()
 460
 461         if [[ ${#_PYTHON_SUPPORTED_IMPLS[@]} -eq 1 ]]; then
 462                 flag_prefix=python_targets
 463         else
 464                 flag_prefix=python_single_target
 465         fi
 466
 467         local PYTHON_REQ_USE=${1}
 468         shift
 469
 470         local patterns=( "${@-*}" )
 471         for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}"; do
 472                 if _python_impl_matches "${impl}" "${patterns[@]}"; then
 473                         local PYTHON_PKG_DEP
 474                         python_export "${impl}" PYTHON_PKG_DEP
 475                         matches+=( "${flag_prefix}_${impl}? ( ${PYTHON_PKG_DEP} )" )
 476                 fi
 477         done
 478
 479         echo "${matches[@]}"
 480 }
 481
 482 # @FUNCTION: python_setup
 483 # @DESCRIPTION:
 484 # Determine what the selected Python implementation is and set
 485 # the Python build environment up for it.
 486 python_setup() {
 487         debug-print-function ${FUNCNAME} "${@}"
 488
 489         unset EPYTHON
 490
 491         # support developer override
 492         if [[ ${PYTHON_COMPAT_OVERRIDE} ]]; then
 493                 local impls=( ${PYTHON_COMPAT_OVERRIDE} )
 494                 [[ ${#impls[@]} -eq 1 ]] || die "PYTHON_COMPAT_OVERRIDE must name exactly one implementation for python-single-r1"
 495
 496                 ewarn "WARNING: PYTHON_COMPAT_OVERRIDE in effect. The following Python"
 497                 ewarn "implementation will be used:"
 498                 ewarn
 499                 ewarn " ${PYTHON_COMPAT_OVERRIDE}"
 500                 ewarn
 501                 ewarn "Dependencies won't be satisfied, and PYTHON_SINGLE_TARGET flags will be ignored."
 502
 503                 python_export "${impls[0]}" EPYTHON PYTHON
 504                 python_wrapper_setup
 505                 return
 506         fi
 507
 508         if [[ ${#_PYTHON_SUPPORTED_IMPLS[@]} -eq 1 ]]; then
 509                 if use "python_targets_${_PYTHON_SUPPORTED_IMPLS[0]}"; then
 510                         # Only one supported implementation, enable it explicitly
 511                         python_export "${_PYTHON_SUPPORTED_IMPLS[0]}" EPYTHON PYTHON
 512                         python_wrapper_setup
 513                 fi
 514         else
 515                 local impl
 516                 for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}"; do
 517                         if use "python_single_target_${impl}"; then
 518                                 if [[ ${EPYTHON} ]]; then
 519                                         eerror "Your PYTHON_SINGLE_TARGET setting lists more than a single Python"
 520                                         eerror "implementation. Please set it to just one value. If you need"
 521                                         eerror "to override the value for a single package, please use package.env"
 522                                         eerror "or an equivalent solution (man 5 portage)."
 523                                         echo
 524                                         die "More than one implementation in PYTHON_SINGLE_TARGET."
 525                                 fi
 526
 527                                 if ! use "python_targets_${impl}"; then
 528                                         eerror "The implementation chosen as PYTHON_SINGLE_TARGET must be added"
 529                                         eerror "to PYTHON_TARGETS as well. This is in order to ensure that"
 530                                         eerror "dependencies are satisfied correctly. We're sorry"
 531                                         eerror "for the inconvenience."
 532                                         echo
 533                                         die "Build target (${impl}) not in PYTHON_TARGETS."
 534                                 fi
 535
 536                                 python_export "${impl}" EPYTHON PYTHON
 537                                 python_wrapper_setup
 538                         fi
 539                 done
 540         fi
 541
 542         if [[ ! ${EPYTHON} ]]; then
 543                 eerror "No Python implementation selected for the build. Please set"
 544                 if [[ ${#_PYTHON_SUPPORTED_IMPLS[@]} -eq 1 ]]; then
 545                         eerror "the PYTHON_TARGETS variable in your make.conf to include one"
 546                 else
 547                         eerror "the PYTHON_SINGLE_TARGET variable in your make.conf to one"
 548                 fi
 549                 eerror "of the following values:"
 550                 eerror
 551                 eerror "${_PYTHON_SUPPORTED_IMPLS[@]}"
 552                 echo
 553                 die "No supported Python implementation in PYTHON_SINGLE_TARGET/PYTHON_TARGETS."
 554         fi
 555 }
 556
 557 # @FUNCTION: python-single-r1_pkg_setup
 558 # @DESCRIPTION:
 559 # Runs python_setup.
 560 python-single-r1_pkg_setup() {
 561         debug-print-function ${FUNCNAME} "${@}"
 562
 563         [[ ${MERGE_TYPE} != binary ]] && python_setup
 564 }
 565
 566 _PYTHON_SINGLE_R1=1
 567 fi