eclass/cmake-utils.eclass

   1 # Copyright 1999-2018 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3
   4 # @ECLASS: cmake-utils.eclass
   5 # @MAINTAINER:
   6 # kde@gentoo.org
   7 # @AUTHOR:
   8 # Tomáš Chvátal <scarabeus@gentoo.org>
   9 # Maciej Mrozowski <reavertm@gentoo.org>
  10 # (undisclosed contributors)
  11 # Original author: Zephyrus (zephyrus@mirach.it)
  12 # @SUPPORTED_EAPIS: 5 6 7
  13 # @BLURB: common ebuild functions for cmake-based packages
  14 # @DESCRIPTION:
  15 # The cmake-utils eclass makes creating ebuilds for cmake-based packages much easier.
  16 # It provides all inherited features (DOCS, HTML_DOCS, PATCHES) along with out-of-source
  17 # builds (default), in-source builds and an implementation of the well-known use_enable
  18 # and use_with functions for CMake.
  19
  20 if [[ -z ${_CMAKE_UTILS_ECLASS} ]]; then
  21 _CMAKE_UTILS_ECLASS=1
  22
  23 # @ECLASS-VARIABLE: BUILD_DIR
  24 # @DESCRIPTION:
  25 # Build directory where all cmake processed files should be generated.
  26 # For in-source build it's fixed to ${CMAKE_USE_DIR}.
  27 # For out-of-source build it can be overridden, by default it uses
  28 # ${WORKDIR}/${P}_build.
  29 #
  30 # This variable has been called CMAKE_BUILD_DIR formerly.
  31 # It is set under that name for compatibility.
  32
  33 # @ECLASS-VARIABLE: CMAKE_BINARY
  34 # @DESCRIPTION:
  35 # Eclass can use different cmake binary than the one provided in by system.
  36 : ${CMAKE_BINARY:=cmake}
  37
  38 # @ECLASS-VARIABLE: CMAKE_BUILD_TYPE
  39 # @DESCRIPTION:
  40 # Set to override default CMAKE_BUILD_TYPE. Only useful for packages
  41 # known to make use of "if (CMAKE_BUILD_TYPE MATCHES xxx)".
  42 # If about to be set - needs to be set before invoking cmake-utils_src_configure.
  43 # You usualy do *NOT* want nor need to set it as it pulls CMake default build-type
  44 # specific compiler flags overriding make.conf.
  45 : ${CMAKE_BUILD_TYPE:=Gentoo}
  46
  47 # @ECLASS-VARIABLE: CMAKE_IN_SOURCE_BUILD
  48 # @DEFAULT_UNSET
  49 # @DESCRIPTION:
  50 # Set to enable in-source build.
  51
  52 # @ECLASS-VARIABLE: CMAKE_MAKEFILE_GENERATOR
  53 # @DEFAULT_UNSET
  54 # @DESCRIPTION:
  55 # Specify a makefile generator to be used by cmake.
  56 # At this point only "emake" and "ninja" are supported.
  57 # In EAPI 7 and above, the default is set to "ninja",
  58 # whereas in EAPIs below 7, it is set to "emake".
  59
  60 # @ECLASS-VARIABLE: CMAKE_MIN_VERSION
  61 # @DESCRIPTION:
  62 # Specify the minimum required CMake version.
  63 : ${CMAKE_MIN_VERSION:=3.9.6}
  64
  65 # @ECLASS-VARIABLE: CMAKE_REMOVE_MODULES
  66 # @DESCRIPTION:
  67 # Do we want to remove anything? yes or whatever else for no
  68 : ${CMAKE_REMOVE_MODULES:=yes}
  69
  70 # @ECLASS-VARIABLE: CMAKE_REMOVE_MODULES_LIST
  71 # @DESCRIPTION:
  72 # Space-separated list of CMake modules that will be removed in $S during src_prepare,
  73 # in order to force packages to use the system version.
  74 : ${CMAKE_REMOVE_MODULES_LIST:=FindBLAS FindLAPACK}
  75
  76 # @ECLASS-VARIABLE: CMAKE_USE_DIR
  77 # @DESCRIPTION:
  78 # Sets the directory where we are working with cmake.
  79 # For example when application uses autotools and only one
  80 # plugin needs to be done by cmake.
  81 # By default it uses ${S}.
  82
  83 # @ECLASS-VARIABLE: CMAKE_VERBOSE
  84 # @DESCRIPTION:
  85 # Set to OFF to disable verbose messages during compilation
  86 : ${CMAKE_VERBOSE:=ON}
  87
  88 # @ECLASS-VARIABLE: CMAKE_WARN_UNUSED_CLI
  89 # @DESCRIPTION:
  90 # Warn about variables that are declared on the command line
  91 # but not used. Might give false-positives.
  92 # "no" to disable (default) or anything else to enable.
  93
  94 # @ECLASS-VARIABLE: CMAKE_EXTRA_CACHE_FILE
  95 # @DEFAULT_UNSET
  96 # @DESCRIPTION:
  97 # Specifies an extra cache file to pass to cmake. This is the analog of EXTRA_ECONF
  98 # for econf and is needed to pass TRY_RUN results when cross-compiling.
  99 # Should be set by user in a per-package basis in /etc/portage/package.env.
 100
 101 # @ECLASS-VARIABLE: CMAKE_UTILS_QA_SRC_DIR_READONLY
 102 # @DEFAULT_UNSET
 103 # @DESCRIPTION:
 104 # After running cmake-utils_src_prepare, sets ${S} to read-only. This is
 105 # a user flag and should under _no circumstances_ be set in the ebuild.
 106 # Helps in improving QA of build systems that write to source tree.
 107
 108 case ${EAPI} in
 109         5) : ${CMAKE_WARN_UNUSED_CLI:=no} ;;
 110         6|7) : ${CMAKE_WARN_UNUSED_CLI:=yes} ;;
 111         *) die "EAPI=${EAPI:-0} is not supported" ;;
 112 esac
 113
 114 inherit toolchain-funcs ninja-utils flag-o-matic multiprocessing xdg-utils
 115
 116 case ${EAPI} in
 117         [56])
 118                 : ${CMAKE_MAKEFILE_GENERATOR:=emake}
 119                 inherit eutils multilib
 120                 ;;
 121         *)
 122                 : ${CMAKE_MAKEFILE_GENERATOR:=ninja}
 123                 ;;
 124 esac
 125
 126 EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test src_install
 127
 128 if [[ ${WANT_CMAKE} ]]; then
 129         if [[ ${EAPI} != [56] ]]; then
 130                 die "\${WANT_CMAKE} has been removed and is a no-op now"
 131         else
 132                 eqawarn "\${WANT_CMAKE} has been removed and is a no-op now"
 133         fi
 134 fi
 135 [[ ${PREFIX} ]] && die "\${PREFIX} has been removed and is a no-op now"
 136
 137 case ${CMAKE_MAKEFILE_GENERATOR} in
 138         emake)
 139                 BDEPEND="sys-devel/make"
 140                 ;;
 141         ninja)
 142                 BDEPEND="dev-util/ninja"
 143                 ;;
 144         *)
 145                 eerror "Unknown value for \${CMAKE_MAKEFILE_GENERATOR}"
 146                 die "Value ${CMAKE_MAKEFILE_GENERATOR} is not supported"
 147                 ;;
 148 esac
 149
 150 if [[ ${PN} != cmake ]]; then
 151         BDEPEND+=" >=dev-util/cmake-${CMAKE_MIN_VERSION}"
 152 fi
 153
 154 case ${EAPI} in
 155         7) ;;
 156         *) DEPEND=" ${BDEPEND}" ;;
 157 esac
 158
 159 # Internal functions used by cmake-utils_use_*
 160 _cmake_use_me_now() {
 161         debug-print-function ${FUNCNAME} "$@"
 162
 163         local arg=$2
 164         [[ ! -z $3 ]] && arg=$3
 165
 166         [[ ${EAPI} == 5 ]] || die "${FUNCNAME[1]} is banned in EAPI 6 and later: use -D$1<related_CMake_variable>=\"\$(usex $2)\" instead"
 167
 168         local uper capitalised x
 169         [[ -z $2 ]] && die "cmake-utils_use-$1 <USE flag> [<flag name>]"
 170         if [[ ! -z $3 ]]; then
 171                 # user specified the use name so use it
 172                 echo "-D$1$3=$(use $2 && echo ON || echo OFF)"
 173         else
 174                 # use all various most used combinations
 175                 uper=$(echo ${2} | tr '[:lower:]' '[:upper:]')
 176                 capitalised=$(echo ${2} | sed 's/\<\(.\)\([^ ]*\)/\u\1\L\2/g')
 177                 for x in $2 $uper $capitalised; do
 178                         echo "-D$1$x=$(use $2 && echo ON || echo OFF) "
 179                 done
 180         fi
 181 }
 182 _cmake_use_me_now_inverted() {
 183         debug-print-function ${FUNCNAME} "$@"
 184
 185         local arg=$2
 186         [[ ! -z $3 ]] && arg=$3
 187
 188         if [[ ${EAPI} != 5 && "${FUNCNAME[1]}" != cmake-utils_use_find_package ]] ; then
 189                 die "${FUNCNAME[1]} is banned in EAPI 6 and later: use -D$1<related_CMake_variable>=\"\$(usex $2)\" instead"
 190         fi
 191
 192         local uper capitalised x
 193         [[ -z $2 ]] && die "cmake-utils_use-$1 <USE flag> [<flag name>]"
 194         if [[ ! -z $3 ]]; then
 195                 # user specified the use name so use it
 196                 echo "-D$1$3=$(use $2 && echo OFF || echo ON)"
 197         else
 198                 # use all various most used combinations
 199                 uper=$(echo ${2} | tr '[:lower:]' '[:upper:]')
 200                 capitalised=$(echo ${2} | sed 's/\<\(.\)\([^ ]*\)/\u\1\L\2/g')
 201                 for x in $2 $uper $capitalised; do
 202                         echo "-D$1$x=$(use $2 && echo OFF || echo ON) "
 203                 done
 204         fi
 205 }
 206
 207 # Determine using IN or OUT source build
 208 _cmake_check_build_dir() {
 209         : ${CMAKE_USE_DIR:=${S}}
 210         if [[ -n ${CMAKE_IN_SOURCE_BUILD} ]]; then
 211                 # we build in source dir
 212                 BUILD_DIR="${CMAKE_USE_DIR}"
 213         else
 214                 # Respect both the old variable and the new one, depending
 215                 # on which one was set by the ebuild.
 216                 if [[ ! ${BUILD_DIR} && ${CMAKE_BUILD_DIR} ]]; then
 217                         if [[ ${EAPI} != [56] ]]; then
 218                                 eerror "The CMAKE_BUILD_DIR variable has been renamed to BUILD_DIR."
 219                                 die "The ebuild must be migrated to BUILD_DIR."
 220                         else
 221                                 eqawarn "The CMAKE_BUILD_DIR variable has been renamed to BUILD_DIR."
 222                                 eqawarn "Please migrate the ebuild to use the new one."
 223                         fi
 224
 225                         # In the next call, both variables will be set already
 226                         # and we'd have to know which one takes precedence.
 227                         _RESPECT_CMAKE_BUILD_DIR=1
 228                 fi
 229
 230                 if [[ ${_RESPECT_CMAKE_BUILD_DIR} ]]; then
 231                         BUILD_DIR=${CMAKE_BUILD_DIR:-${WORKDIR}/${P}_build}
 232                 else
 233                         : ${BUILD_DIR:=${WORKDIR}/${P}_build}
 234                 fi
 235         fi
 236
 237         # Backwards compatibility for getting the value.
 238         [[ ${EAPI} == [56] ]] && CMAKE_BUILD_DIR=${BUILD_DIR}
 239
 240         mkdir -p "${BUILD_DIR}" || die
 241         echo ">>> Working in BUILD_DIR: \"$BUILD_DIR\""
 242 }
 243
 244 # Determine which generator to use
 245 _cmake_generator_to_use() {
 246         local generator_name
 247
 248         case ${CMAKE_MAKEFILE_GENERATOR} in
 249                 ninja)
 250                         # if ninja is enabled but not installed, the build could fail
 251                         # this could happen if ninja is manually enabled (eg. make.conf) but not installed
 252                         case ${EAPI} in
 253                                 5|6)
 254                                         if ! ROOT=/ has_version dev-util/ninja; then
 255                                                 die "CMAKE_MAKEFILE_GENERATOR is set to ninja, but ninja is not installed. Please install dev-util/ninja or unset CMAKE_MAKEFILE_GENERATOR."
 256                                         fi
 257                                 ;;
 258                                 *)
 259                                         if ! has_version -b dev-util/ninja; then
 260                                                 die "CMAKE_MAKEFILE_GENERATOR is set to ninja, but ninja is not installed. Please install dev-util/ninja or unset CMAKE_MAKEFILE_GENERATOR."
 261                                         fi
 262                                 ;;
 263                         esac
 264                         generator_name="Ninja"
 265                         ;;
 266                 emake)
 267                         generator_name="Unix Makefiles"
 268                         ;;
 269                 *)
 270                         eerror "Unknown value for \${CMAKE_MAKEFILE_GENERATOR}"
 271                         die "Value ${CMAKE_MAKEFILE_GENERATOR} is not supported"
 272                         ;;
 273         esac
 274
 275         echo ${generator_name}
 276 }
 277
 278 # @FUNCTION: cmake_comment_add_subdirectory
 279 # @USAGE: <subdirectory>
 280 # @DESCRIPTION:
 281 # Comment out one or more add_subdirectory calls in CMakeLists.txt in the current directory
 282 cmake_comment_add_subdirectory() {
 283         if [[ -z ${1} ]]; then
 284                 die "comment_add_subdirectory must be passed at least one directory name to comment"
 285         fi
 286
 287         if [[ -e "CMakeLists.txt" ]]; then
 288                 local d
 289                 for d in $@; do
 290                         sed -e "/add_subdirectory[[:space:]]*([[:space:]]*${d//\//\\/}[[:space:]]*)/I s/^/#DONOTCOMPILE /" \
 291                                 -i CMakeLists.txt || die "failed to comment add_subdirectory(${d})"
 292                 done
 293         fi
 294 }
 295
 296 # @FUNCTION: comment_add_subdirectory
 297 # @USAGE: <subdirectory>
 298 # @DESCRIPTION:
 299 # Comment out an add_subdirectory call in CMakeLists.txt in the current directory
 300 # Banned in EAPI 6 and later - use cmake_comment_add_subdirectory instead.
 301 comment_add_subdirectory() {
 302         [[ ${EAPI} == 5 ]] || die "comment_add_subdirectory is banned in EAPI 6 and later - use cmake_comment_add_subdirectory instead"
 303
 304         cmake_comment_add_subdirectory "$@"
 305 }
 306
 307 # @FUNCTION: cmake-utils_use_with
 308 # @USAGE: <USE flag> [flag name]
 309 # @DESCRIPTION:
 310 # Based on use_with. See ebuild(5).
 311 #
 312 # `cmake-utils_use_with foo FOO` echoes -DWITH_FOO=ON if foo is enabled
 313 # and -DWITH_FOO=OFF if it is disabled.
 314 cmake-utils_use_with() { _cmake_use_me_now WITH_ "$@" ; }
 315
 316 # @FUNCTION: cmake-utils_use_enable
 317 # @USAGE: <USE flag> [flag name]
 318 # @DESCRIPTION:
 319 # Based on use_enable. See ebuild(5).
 320 #
 321 # `cmake-utils_use_enable foo FOO` echoes -DENABLE_FOO=ON if foo is enabled
 322 # and -DENABLE_FOO=OFF if it is disabled.
 323 cmake-utils_use_enable() { _cmake_use_me_now ENABLE_ "$@" ; }
 324
 325 # @FUNCTION: cmake-utils_use_find_package
 326 # @USAGE: <USE flag> <package name>
 327 # @DESCRIPTION:
 328 # Based on use_enable. See ebuild(5).
 329 #
 330 # `cmake-utils_use_find_package foo LibFoo` echoes -DCMAKE_DISABLE_FIND_PACKAGE_LibFoo=OFF
 331 # if foo is enabled and -DCMAKE_DISABLE_FIND_PACKAGE_LibFoo=ON if it is disabled.
 332 # This can be used to make find_package optional.
 333 cmake-utils_use_find_package() {
 334         if [[ ${EAPI} != 5 && "$#" != 2 ]] ; then
 335                 die "Usage: cmake-utils_use_find_package <USE flag> <package name>"
 336         fi
 337
 338         _cmake_use_me_now_inverted CMAKE_DISABLE_FIND_PACKAGE_ "$@" ;
 339 }
 340
 341 # @FUNCTION: cmake-utils_use_disable
 342 # @USAGE: <USE flag> [flag name]
 343 # @DESCRIPTION:
 344 # Based on inversion of use_enable. See ebuild(5).
 345 #
 346 # `cmake-utils_use_enable foo FOO` echoes -DDISABLE_FOO=OFF if foo is enabled
 347 # and -DDISABLE_FOO=ON if it is disabled.
 348 cmake-utils_use_disable() { _cmake_use_me_now_inverted DISABLE_ "$@" ; }
 349
 350 # @FUNCTION: cmake-utils_use_no
 351 # @USAGE: <USE flag> [flag name]
 352 # @DESCRIPTION:
 353 # Based on use_disable. See ebuild(5).
 354 #
 355 # `cmake-utils_use_no foo FOO` echoes -DNO_FOO=OFF if foo is enabled
 356 # and -DNO_FOO=ON if it is disabled.
 357 cmake-utils_use_no() { _cmake_use_me_now_inverted NO_ "$@" ; }
 358
 359 # @FUNCTION: cmake-utils_use_want
 360 # @USAGE: <USE flag> [flag name]
 361 # @DESCRIPTION:
 362 # Based on use_enable. See ebuild(5).
 363 #
 364 # `cmake-utils_use_want foo FOO` echoes -DWANT_FOO=ON if foo is enabled
 365 # and -DWANT_FOO=OFF if it is disabled.
 366 cmake-utils_use_want() { _cmake_use_me_now WANT_ "$@" ; }
 367
 368 # @FUNCTION: cmake-utils_use_build
 369 # @USAGE: <USE flag> [flag name]
 370 # @DESCRIPTION:
 371 # Based on use_enable. See ebuild(5).
 372 #
 373 # `cmake-utils_use_build foo FOO` echoes -DBUILD_FOO=ON if foo is enabled
 374 # and -DBUILD_FOO=OFF if it is disabled.
 375 cmake-utils_use_build() { _cmake_use_me_now BUILD_ "$@" ; }
 376
 377 # @FUNCTION: cmake-utils_use_has
 378 # @USAGE: <USE flag> [flag name]
 379 # @DESCRIPTION:
 380 # Based on use_enable. See ebuild(5).
 381 #
 382 # `cmake-utils_use_has foo FOO` echoes -DHAVE_FOO=ON if foo is enabled
 383 # and -DHAVE_FOO=OFF if it is disabled.
 384 cmake-utils_use_has() { _cmake_use_me_now HAVE_ "$@" ; }
 385
 386 # @FUNCTION: cmake-utils_use_use
 387 # @USAGE: <USE flag> [flag name]
 388 # @DESCRIPTION:
 389 # Based on use_enable. See ebuild(5).
 390 #
 391 # `cmake-utils_use_use foo FOO` echoes -DUSE_FOO=ON if foo is enabled
 392 # and -DUSE_FOO=OFF if it is disabled.
 393 cmake-utils_use_use() { _cmake_use_me_now USE_ "$@" ; }
 394
 395 # @FUNCTION: cmake-utils_use
 396 # @USAGE: <USE flag> [flag name]
 397 # @DESCRIPTION:
 398 # Based on use_enable. See ebuild(5).
 399 #
 400 # `cmake-utils_use foo FOO` echoes -DFOO=ON if foo is enabled
 401 # and -DFOO=OFF if it is disabled.
 402 cmake-utils_use() { _cmake_use_me_now "" "$@" ; }
 403
 404 # @FUNCTION: cmake-utils_useno
 405 # @USAGE: <USE flag> [flag name]
 406 # @DESCRIPTION:
 407 # Based on use_enable. See ebuild(5).
 408 #
 409 # `cmake-utils_useno foo NOFOO` echoes -DNOFOO=OFF if foo is enabled
 410 # and -DNOFOO=ON if it is disabled.
 411 cmake-utils_useno() { _cmake_use_me_now_inverted "" "$@" ; }
 412
 413 # Internal function for modifying hardcoded definitions.
 414 # Removes dangerous definitions that override Gentoo settings.
 415 _cmake_modify-cmakelists() {
 416         debug-print-function ${FUNCNAME} "$@"
 417
 418         # Only edit the files once
 419         grep -qs "<<< Gentoo configuration >>>" "${CMAKE_USE_DIR}"/CMakeLists.txt && return 0
 420
 421         # Comment out all set (<some_should_be_user_defined_variable> value)
 422         # TODO Add QA checker - inform when variable being checked for below is set in CMakeLists.txt
 423         find "${CMAKE_USE_DIR}" -name CMakeLists.txt \
 424                 -exec sed -i -e '/^[[:space:]]*[sS][eE][tT][[:space:]]*([[:space:]]*CMAKE_BUILD_TYPE.*)/{s/^/#IGNORE /g}' {} + \
 425                 -exec sed -i -e '/^[[:space:]]*[sS][eE][tT][[:space:]]*([[:space:]]*CMAKE_COLOR_MAKEFILE.*)/{s/^/#IGNORE /g}' {} + \
 426                 -exec sed -i -e '/^[[:space:]]*[sS][eE][tT][[:space:]]*([[:space:]]*CMAKE_INSTALL_PREFIX.*)/{s/^/#IGNORE /g}' {} + \
 427                 -exec sed -i -e '/^[[:space:]]*[sS][eE][tT][[:space:]]*([[:space:]]*CMAKE_VERBOSE_MAKEFILE.*)/{s/^/#IGNORE /g}' {} + \
 428                 || die "${LINENO}: failed to disable hardcoded settings"
 429
 430         # NOTE Append some useful summary here
 431         cat >> "${CMAKE_USE_DIR}"/CMakeLists.txt <<- _EOF_ || die
 432
 433                 MESSAGE(STATUS "<<< Gentoo configuration >>>
 434                 Build type      \${CMAKE_BUILD_TYPE}
 435                 Install path    \${CMAKE_INSTALL_PREFIX}
 436                 Compiler flags:
 437                 C               \${CMAKE_C_FLAGS}
 438                 C++             \${CMAKE_CXX_FLAGS}
 439                 Linker flags:
 440                 Executable      \${CMAKE_EXE_LINKER_FLAGS}
 441                 Module          \${CMAKE_MODULE_LINKER_FLAGS}
 442                 Shared          \${CMAKE_SHARED_LINKER_FLAGS}\n")
 443         _EOF_
 444 }
 445
 446 # temporary function for moving cmake cleanups from from src_configure -> src_prepare.
 447 # bug #378850
 448 _cmake_cleanup_cmake() {
 449         : ${CMAKE_USE_DIR:=${S}}
 450
 451         if [[ "${CMAKE_REMOVE_MODULES}" == "yes" ]] ; then
 452                 local name
 453                 for name in ${CMAKE_REMOVE_MODULES_LIST} ; do
 454                         find "${S}" -name ${name}.cmake -exec rm -v {} + || die
 455                 done
 456         fi
 457
 458         # check if CMakeLists.txt exist and if no then die
 459         if [[ ! -e ${CMAKE_USE_DIR}/CMakeLists.txt ]] ; then
 460                 eerror "Unable to locate CMakeLists.txt under:"
 461                 eerror "\"${CMAKE_USE_DIR}/CMakeLists.txt\""
 462                 eerror "Consider not inheriting the cmake eclass."
 463                 die "FATAL: Unable to find CMakeLists.txt"
 464         fi
 465
 466         # Remove dangerous things.
 467         _cmake_modify-cmakelists
 468 }
 469
 470 # @FUNCTION: cmake-utils_src_prepare
 471 # @DESCRIPTION:
 472 # Apply ebuild and user patches.
 473 cmake-utils_src_prepare() {
 474         debug-print-function ${FUNCNAME} "$@"
 475
 476         pushd "${S}" > /dev/null || die
 477
 478         if [[ ${EAPI} != 5 ]]; then
 479                 default_src_prepare
 480                 _cmake_cleanup_cmake
 481         else
 482                 debug-print "$FUNCNAME: PATCHES=$PATCHES"
 483                 [[ ${PATCHES[@]} ]] && epatch "${PATCHES[@]}"
 484
 485                 debug-print "$FUNCNAME: applying user patches"
 486                 epatch_user
 487         fi
 488
 489         popd > /dev/null || die
 490
 491         # make ${S} read-only in order to detect broken build-systems
 492         if [[ ${CMAKE_UTILS_QA_SRC_DIR_READONLY} && ! ${CMAKE_IN_SOURCE_BUILD} ]]; then
 493                 chmod -R a-w "${S}"
 494         fi
 495
 496         _CMAKE_UTILS_SRC_PREPARE_HAS_RUN=1
 497 }
 498
 499 # @VARIABLE: mycmakeargs
 500 # @DEFAULT_UNSET
 501 # @DESCRIPTION:
 502 # Optional cmake defines as a bash array. Should be defined before calling
 503 # src_configure.
 504 # @CODE
 505 # src_configure() {
 506 #       local mycmakeargs=(
 507 #               $(cmake-utils_use_with openconnect)
 508 #       )
 509 #
 510 #       cmake-utils_src_configure
 511 # }
 512 # @CODE
 513
 514 # @FUNCTION: cmake-utils_src_configure
 515 # @DESCRIPTION:
 516 # General function for configuring with cmake. Default behaviour is to start an
 517 # out-of-source build.
 518 cmake-utils_src_configure() {
 519         debug-print-function ${FUNCNAME} "$@"
 520
 521         if [[ ! ${_CMAKE_UTILS_SRC_PREPARE_HAS_RUN} ]]; then
 522                 if [[ ${EAPI} != [56] ]]; then
 523                         die "FATAL: cmake-utils_src_prepare has not been run"
 524                 else
 525                         eqawarn "cmake-utils_src_prepare has not been run, please open a bug on https://bugs.gentoo.org/"
 526                 fi
 527         fi
 528
 529         [[ ${EAPI} == 5 ]] && _cmake_cleanup_cmake
 530
 531         _cmake_check_build_dir
 532
 533         # Fix xdg collision with sandbox
 534         xdg_environment_reset
 535
 536         # @SEE CMAKE_BUILD_TYPE
 537         if [[ ${CMAKE_BUILD_TYPE} = Gentoo ]]; then
 538                 # Handle release builds
 539                 if ! has debug ${IUSE//+} || ! use debug; then
 540                         local CPPFLAGS=${CPPFLAGS}
 541                         append-cppflags -DNDEBUG
 542                 fi
 543         fi
 544
 545         # Prepare Gentoo override rules (set valid compiler, append CPPFLAGS etc.)
 546         local build_rules=${BUILD_DIR}/gentoo_rules.cmake
 547
 548         cat > "${build_rules}" <<- _EOF_ || die
 549                 SET (CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> <DEFINES> <INCLUDES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "ASM compile command" FORCE)
 550                 SET (CMAKE_ASM-ATT_COMPILE_OBJECT "<CMAKE_ASM-ATT_COMPILER> <DEFINES> <INCLUDES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c -x assembler <SOURCE>" CACHE STRING "ASM-ATT compile command" FORCE)
 551                 SET (CMAKE_ASM-ATT_LINK_FLAGS "-nostdlib" CACHE STRING "ASM-ATT link flags" FORCE)
 552                 SET (CMAKE_C_COMPILE_OBJECT "<CMAKE_C_COMPILER> <DEFINES> <INCLUDES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "C compile command" FORCE)
 553                 SET (CMAKE_CXX_COMPILE_OBJECT "<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "C++ compile command" FORCE)
 554                 SET (CMAKE_Fortran_COMPILE_OBJECT "<CMAKE_Fortran_COMPILER> <DEFINES> <INCLUDES> ${FCFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "Fortran compile command" FORCE)
 555         _EOF_
 556
 557         local myCC=$(tc-getCC) myCXX=$(tc-getCXX) myFC=$(tc-getFC)
 558
 559         # !!! IMPORTANT NOTE !!!
 560         # Single slash below is intentional. CMake is weird and wants the
 561         # CMAKE_*_VARIABLES split into two elements: the first one with
 562         # compiler path, and the second one with all command-line options,
 563         # space separated.
 564         local toolchain_file=${BUILD_DIR}/gentoo_toolchain.cmake
 565         cat > ${toolchain_file} <<- _EOF_ || die
 566                 SET (CMAKE_ASM_COMPILER "${myCC/ /;}")
 567                 SET (CMAKE_ASM-ATT_COMPILER "${myCC/ /;}")
 568                 SET (CMAKE_C_COMPILER "${myCC/ /;}")
 569                 SET (CMAKE_CXX_COMPILER "${myCXX/ /;}")
 570                 SET (CMAKE_Fortran_COMPILER "${myFC/ /;}")
 571                 SET (CMAKE_AR $(type -P $(tc-getAR)) CACHE FILEPATH "Archive manager" FORCE)
 572                 SET (CMAKE_RANLIB $(type -P $(tc-getRANLIB)) CACHE FILEPATH "Archive index generator" FORCE)
 573                 SET (CMAKE_SYSTEM_PROCESSOR "${CHOST%%-*}")
 574         _EOF_
 575
 576         # We are using the C compiler for assembly by default.
 577         local -x ASMFLAGS=${CFLAGS}
 578         local -x PKG_CONFIG=$(tc-getPKG_CONFIG)
 579
 580         if tc-is-cross-compiler; then
 581                 local sysname
 582                 case "${KERNEL:-linux}" in
 583                         Cygwin) sysname="CYGWIN_NT-5.1" ;;
 584                         HPUX) sysname="HP-UX" ;;
 585                         linux) sysname="Linux" ;;
 586                         Winnt)
 587                                 sysname="Windows"
 588                                 cat >> "${toolchain_file}" <<- _EOF_ || die
 589                                         SET (CMAKE_RC_COMPILER $(tc-getRC))
 590                                 _EOF_
 591                                 ;;
 592                         *) sysname="${KERNEL}" ;;
 593                 esac
 594
 595                 cat >> "${toolchain_file}" <<- _EOF_ || die
 596                         SET (CMAKE_SYSTEM_NAME "${sysname}")
 597                 _EOF_
 598
 599                 if [ "${SYSROOT:-/}" != "/" ] ; then
 600                         # When cross-compiling with a sysroot (e.g. with crossdev's emerge wrappers)
 601                         # we need to tell cmake to use libs/headers from the sysroot but programs from / only.
 602                         cat >> "${toolchain_file}" <<- _EOF_ || die
 603                                 SET (CMAKE_FIND_ROOT_PATH "${SYSROOT}")
 604                                 SET (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 605                                 SET (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
 606                                 SET (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
 607                         _EOF_
 608                 fi
 609         fi
 610
 611         if [[ ${EPREFIX} ]]; then
 612                 cat >> "${build_rules}" <<- _EOF_ || die
 613                         # in Prefix we need rpath and must ensure cmake gets our default linker path
 614                         # right ... except for Darwin hosts
 615                         IF (NOT APPLE)
 616                         SET (CMAKE_SKIP_RPATH OFF CACHE BOOL "" FORCE)
 617                         SET (CMAKE_PLATFORM_REQUIRED_RUNTIME_PATH "${EPREFIX}/usr/${CHOST}/lib/gcc;${EPREFIX}/usr/${CHOST}/lib;${EPREFIX}/usr/$(get_libdir);${EPREFIX}/$(get_libdir)"
 618                         CACHE STRING "" FORCE)
 619
 620                         ELSE ()
 621
 622                         SET (CMAKE_PREFIX_PATH "${EPREFIX}/usr" CACHE STRING "" FORCE)
 623                         SET (CMAKE_MACOSX_RPATH ON CACHE BOOL "" FORCE)
 624                         SET (CMAKE_SKIP_BUILD_RPATH OFF CACHE BOOL "" FORCE)
 625                         SET (CMAKE_SKIP_RPATH OFF CACHE BOOL "" FORCE)
 626                         SET (CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE CACHE BOOL "" FORCE)
 627
 628                         ENDIF (NOT APPLE)
 629                 _EOF_
 630         fi
 631
 632         # Common configure parameters (invariants)
 633         local common_config=${BUILD_DIR}/gentoo_common_config.cmake
 634         local libdir=$(get_libdir)
 635         cat > "${common_config}" <<- _EOF_ || die
 636                 SET (CMAKE_GENTOO_BUILD ON CACHE BOOL "Indicate Gentoo package build")
 637                 SET (LIB_SUFFIX ${libdir/lib} CACHE STRING "library path suffix" FORCE)
 638                 SET (CMAKE_INSTALL_LIBDIR ${libdir} CACHE PATH "Output directory for libraries")
 639                 SET (CMAKE_INSTALL_INFODIR "${EPREFIX}/usr/share/info" CACHE PATH "")
 640                 SET (CMAKE_INSTALL_MANDIR "${EPREFIX}/usr/share/man" CACHE PATH "")
 641                 SET (CMAKE_USER_MAKE_RULES_OVERRIDE "${build_rules}" CACHE FILEPATH "Gentoo override rules")
 642         _EOF_
 643         [[ "${NOCOLOR}" = true || "${NOCOLOR}" = yes ]] && echo 'SET (CMAKE_COLOR_MAKEFILE OFF CACHE BOOL "pretty colors during make" FORCE)' >> "${common_config}"
 644
 645         if [[ ${EAPI} != [56] ]]; then
 646                 cat >> "${common_config}" <<- _EOF_ || die
 647                         SET (CMAKE_INSTALL_DOCDIR "${EPREFIX}/usr/share/doc/${PF}" CACHE PATH "")
 648                         SET (BUILD_SHARED_LIBS ON CACHE BOOLEAN "")
 649                 _EOF_
 650         fi
 651
 652         # Wipe the default optimization flags out of CMake
 653         if [[ ${CMAKE_BUILD_TYPE} != Gentoo && ${EAPI} != 5 ]]; then
 654                 cat >> ${common_config} <<- _EOF_ || die
 655                         SET (CMAKE_ASM_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
 656                         SET (CMAKE_ASM-ATT_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
 657                         SET (CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
 658                         SET (CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
 659                         SET (CMAKE_Fortran_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
 660                         SET (CMAKE_EXE_LINKER_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
 661                         SET (CMAKE_MODULE_LINKER_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
 662                         SET (CMAKE_SHARED_LINKER_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
 663                         SET (CMAKE_STATIC_LINKER_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
 664                 _EOF_
 665         fi
 666
 667         # Convert mycmakeargs to an array, for backwards compatibility
 668         # Make the array a local variable since <=portage-2.1.6.x does not
 669         # support global arrays (see bug #297255).
 670         local mycmakeargstype=$(declare -p mycmakeargs 2>&-)
 671         if [[ "${mycmakeargstype}" != "declare -a mycmakeargs="* ]]; then
 672                 if [[ -n "${mycmakeargstype}" ]] ; then
 673                         if [[ ${EAPI} == 5 ]]; then
 674                                 eqawarn "Declaring mycmakeargs as a variable is deprecated. Please use an array instead."
 675                         else
 676                                 die "Declaring mycmakeargs as a variable is banned in EAPI=${EAPI}. Please use an array instead."
 677                         fi
 678                 fi
 679                 local mycmakeargs_local=(${mycmakeargs})
 680         else
 681                 local mycmakeargs_local=("${mycmakeargs[@]}")
 682         fi
 683
 684         if [[ ${CMAKE_WARN_UNUSED_CLI} == no ]] ; then
 685                 local warn_unused_cli="--no-warn-unused-cli"
 686         else
 687                 local warn_unused_cli=""
 688         fi
 689
 690         # Common configure parameters (overridable)
 691         # NOTE CMAKE_BUILD_TYPE can be only overridden via CMAKE_BUILD_TYPE eclass variable
 692         # No -DCMAKE_BUILD_TYPE=xxx definitions will be in effect.
 693         local cmakeargs=(
 694                 ${warn_unused_cli}
 695                 -C "${common_config}"
 696                 -G "$(_cmake_generator_to_use)"
 697                 -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr"
 698                 "${mycmakeargs_local[@]}"
 699                 -DCMAKE_BUILD_TYPE="${CMAKE_BUILD_TYPE}"
 700                 $([[ ${EAPI} == 5 ]] && echo -DCMAKE_INSTALL_DO_STRIP=OFF)
 701                 -DCMAKE_TOOLCHAIN_FILE="${toolchain_file}"
 702                 "${MYCMAKEARGS}"
 703         )
 704
 705         if [[ -n "${CMAKE_EXTRA_CACHE_FILE}" ]] ; then
 706                 cmakeargs+=( -C "${CMAKE_EXTRA_CACHE_FILE}" )
 707         fi
 708
 709         pushd "${BUILD_DIR}" > /dev/null || die
 710         debug-print "${LINENO} ${ECLASS} ${FUNCNAME}: mycmakeargs is ${mycmakeargs_local[*]}"
 711         echo "${CMAKE_BINARY}" "${cmakeargs[@]}" "${CMAKE_USE_DIR}"
 712         "${CMAKE_BINARY}" "${cmakeargs[@]}" "${CMAKE_USE_DIR}" || die "cmake failed"
 713         popd > /dev/null || die
 714 }
 715
 716 # @FUNCTION: cmake-utils_src_compile
 717 # @DESCRIPTION:
 718 # General function for compiling with cmake.
 719 # Automatically detects the build type. All arguments are passed to emake.
 720 cmake-utils_src_compile() {
 721         debug-print-function ${FUNCNAME} "$@"
 722
 723         cmake-utils_src_make "$@"
 724 }
 725
 726 # @FUNCTION: _cmake_ninja_src_make
 727 # @INTERNAL
 728 # @DESCRIPTION:
 729 # Build the package using ninja generator
 730 _cmake_ninja_src_make() {
 731         debug-print-function ${FUNCNAME} "$@"
 732
 733         [[ -e build.ninja ]] || die "build.ninja not found. Error during configure stage."
 734
 735         eninja "$@"
 736 }
 737
 738 # @FUNCTION: _cmake_emake_src_make
 739 # @INTERNAL
 740 # @DESCRIPTION:
 741 # Build the package using make generator
 742 _cmake_emake_src_make() {
 743         debug-print-function ${FUNCNAME} "$@"
 744
 745         [[ -e Makefile ]] || die "Makefile not found. Error during configure stage."
 746
 747         if [[ "${CMAKE_VERBOSE}" != "OFF" ]]; then
 748                 emake VERBOSE=1 "$@" || die
 749         else
 750                 emake "$@" || die
 751         fi
 752
 753 }
 754
 755 # @FUNCTION: cmake-utils_src_make
 756 # @DESCRIPTION:
 757 # Function for building the package. Automatically detects the build type.
 758 # All arguments are passed to emake.
 759 cmake-utils_src_make() {
 760         debug-print-function ${FUNCNAME} "$@"
 761
 762         _cmake_check_build_dir
 763         pushd "${BUILD_DIR}" > /dev/null || die
 764
 765         _cmake_${CMAKE_MAKEFILE_GENERATOR}_src_make "$@"
 766
 767         popd > /dev/null || die
 768 }
 769
 770 # @FUNCTION: cmake-utils_src_test
 771 # @DESCRIPTION:
 772 # Function for testing the package. Automatically detects the build type.
 773 cmake-utils_src_test() {
 774         debug-print-function ${FUNCNAME} "$@"
 775
 776         _cmake_check_build_dir
 777         pushd "${BUILD_DIR}" > /dev/null || die
 778         [[ -e CTestTestfile.cmake ]] || { echo "No tests found. Skipping."; return 0 ; }
 779
 780         [[ -n ${TEST_VERBOSE} ]] && myctestargs+=( --extra-verbose --output-on-failure )
 781
 782         set -- ctest -j "$(makeopts_jobs)" --test-load "$(makeopts_loadavg)" "${myctestargs[@]}" "$@"
 783         echo "$@" >&2
 784         if "$@" ; then
 785                 einfo "Tests succeeded."
 786                 popd > /dev/null || die
 787                 return 0
 788         else
 789                 if [[ -n "${CMAKE_YES_I_WANT_TO_SEE_THE_TEST_LOG}" ]] ; then
 790                         # on request from Diego
 791                         eerror "Tests failed. Test log ${BUILD_DIR}/Testing/Temporary/LastTest.log follows:"
 792                         eerror "--START TEST LOG--------------------------------------------------------------"
 793                         cat "${BUILD_DIR}/Testing/Temporary/LastTest.log"
 794                         eerror "--END TEST LOG----------------------------------------------------------------"
 795                         die "Tests failed."
 796                 else
 797                         die "Tests failed. When you file a bug, please attach the following file: \n\t${BUILD_DIR}/Testing/Temporary/LastTest.log"
 798                 fi
 799
 800                 # die might not die due to nonfatal
 801                 popd > /dev/null || die
 802                 return 1
 803         fi
 804 }
 805
 806 # @FUNCTION: cmake-utils_src_install
 807 # @DESCRIPTION:
 808 # Function for installing the package. Automatically detects the build type.
 809 cmake-utils_src_install() {
 810         debug-print-function ${FUNCNAME} "$@"
 811
 812         _cmake_check_build_dir
 813         pushd "${BUILD_DIR}" > /dev/null || die
 814         DESTDIR="${D}" ${CMAKE_MAKEFILE_GENERATOR} install "$@" || die "died running ${CMAKE_MAKEFILE_GENERATOR} install"
 815         popd > /dev/null || die
 816
 817         pushd "${S}" > /dev/null || die
 818         einstalldocs
 819         popd > /dev/null || die
 820 }
 821
 822 fi