qt5base-lts/mkspecs/features/qt_configure.prf

CONFIG -= qt debug_and_release
load(configure_base)

QT_CONFIGURE_REPORT =
QT_CONFIGURE_NOTES =
QT_CONFIGURE_WARNINGS =
QT_CONFIGURE_ERRORS =

defineTest(qtConfAddReport) {
    QT_CONFIGURE_REPORT += "$$join(1, $$escape_expand(\\n))"
    export(QT_CONFIGURE_REPORT)
}

defineTest(qtConfAddNote) {
    QT_CONFIGURE_NOTES += "Note: $$join(1, $$escape_expand(\\n))"
    export(QT_CONFIGURE_NOTES)
}

defineTest(qtConfAddWarning) {
    QT_CONFIGURE_WARNINGS += "WARNING: $$join(1, $$escape_expand(\\n))"
    export(QT_CONFIGURE_WARNINGS)
}

defineTest(qtConfAddError) {
    QT_CONFIGURE_ERRORS += "ERROR: $$join(1, $$escape_expand(\\n))"
    export(QT_CONFIGURE_ERRORS)
    equals(2, log) {
        CONFIG += mention_config_log
        export(CONFIG)
    }
}

defineTest(qtConfCommandlineSetInput) {
    arg = $${1}
    val = $${2}
    !isEmpty(config.commandline.options.$${arg}.name): \
        arg = $$eval(config.commandline.options.$${arg}.name)

    config.input.$$arg = $$val
    export(config.input.$$arg)
}

defineReplace(qtConfGetNextCommandlineArg) {
    c = $$take_first(QMAKE_EXTRA_ARGS)
    export(QMAKE_EXTRA_ARGS)
    return($$c)
}

defineReplace(qtConfPeekNextCommandlineArg) {
    return($$first(QMAKE_EXTRA_ARGS))
}

defineTest(qtConfCommandline_boolean) {
    opt = $${1}
    val = $${2}
    isEmpty(val): val = yes

    !equals(val, yes):!equals(val, no) {
        qtConfAddError("Invalid value given for boolean command line option '$$opt'.")
        return()
    }

    qtConfCommandlineSetInput($$opt, $$val)
}

defineTest(qtConfCommandline_void) {
    opt = $${1}
    val = $${2}
    !isEmpty(val) {
        qtConfAddError("Command line option '$$opt' expects no argument ('$$val' given).")
        return()
    }

    val = $$eval(config.commandline.options.$${opt}.value)
    isEmpty(val): val = yes

    qtConfCommandlineSetInput($$opt, $$val)
}

defineTest(qtConfCommandline_enum) {
    opt = $${1}
    val = $${2}
    isEmpty(val): val = yes

    # validate and map value
    mapped = $$eval(config.commandline.options.$${opt}.values.$${val})
    isEmpty(mapped) {
        # just a list of allowed values
        for (i, config.commandline.options.$${opt}.values._KEYS_) {
            equals(config.commandline.options.$${opt}.values.$${i}, $$val) {
                mapped = $$val
                break()
            }
        }
    }
    isEmpty(mapped) {
        qtConfAddError("Invalid value '$$val' supplied to command line option '$$opt'.")
        return()
    }

    qtConfCommandlineSetInput($$opt, $$mapped)
}

defineTest(qtConfValidateValue) {
    opt = $${1}
    val = $${2}

    validValues = $$eval(config.commandline.options.$${opt}.values._KEYS_)
    isEmpty(validValues): \
        return(true)

    for (i, validValues) {
        equals(config.commandline.options.$${opt}.values.$${i}, $$val): \
            return(true)
    }

    qtConfAddError("Invalid value '$$val' supplied to command line option '$$opt'.")
    return(false)
}

defineTest(qtConfCommandline_string) {
    opt = $${1}
    val = $${2}
    isEmpty(val): val = $$qtConfGetNextCommandlineArg()

    contains(val, "^-.*")|isEmpty(val) {
        qtConfAddError("No value supplied to command line option '$$opt'.")
        return()
    }

    !qtConfValidateValue($$opt, $$val): \
        return()

    qtConfCommandlineSetInput($$opt, $$val)
}

defineTest(qtConfCommandline_optionalString) {
    opt = $${1}
    val = $${2}
    isEmpty(val) {
        v = $$qtConfPeekNextCommandlineArg()
        contains(v, "^-.*")|isEmpty(v): \
            val = "yes"
        else: \
            val = $$qtConfGetNextCommandlineArg()
    }

    !qtConfValidateValue($$opt, $$val): \
        return()

    qtConfCommandlineSetInput($$opt, $$val)
}


defineTest(qtConfCommandline_addString) {
    opt = $${1}
    val = $${2}
    isEmpty(val): val = $$qtConfGetNextCommandlineArg()

    contains(val, "^-.*")|isEmpty(val) {
        qtConfAddError("No value supplied to command line option '$$opt'.")
        return()
    }

    !qtConfValidateValue($$opt, $$val): \
        return()

    !isEmpty(config.commandline.options.$${opt}.name): \
        opt = $$eval(config.commandline.options.$${opt}.name)

    config.input.$$opt += $$val
    export(config.input.$$opt)
}

defineTest(qtConfParseCommandLine) {
    for (ever) {
        c = $$qtConfGetNextCommandlineArg()
        isEmpty(c): break()

        # handle options to turn on verbose logging
        contains(c, "^-v")|contains(c, "^--?verbose") {
            QMAKE_CONFIG_VERBOSE = true
            export(QMAKE_CONFIG_VERBOSE)
            next()
        }
        contains(c, "^-no-v")|contains(c, "^--?no-verbose") {
            QMAKE_CONFIG_VERBOSE = false
            export(QMAKE_CONFIG_VERBOSE)
            next()
        }

        # parse out opt and val
        contains(c, "^--?enable-(.*)") {
            opt = $$replace(c, "^--?enable-(.*)", "\\1")
            val = yes
        } else: contains(c, "^--?(disable|no)-(.*)") {
            opt = $$replace(c, "^--?(disable|no)-(.*)", "\\2")
            val = no
        } else: contains(c, "^--?qt-(.*)") {
            opt = $$replace(c, "^--?qt-(.*)", "\\1")
            val = qt
        } else: contains(c, "^--?system-(.*)") {
            opt = $$replace(c, "^--?system-(.*)", "\\1")
            val = system
        } else: contains(c, "^--?([^-].*)=(.*)") {
            opt = $$replace(c, "^--?([^-].*)=(.*)", "\\1")
            val = $$replace(c, "^--?([^-].*)=(.*)", "\\2")
        } else: contains(c, "^--?([^-].*)") {
            opt = $$replace(c, "^--?([^-].*)", "\\1")
            val =
        } else {
            qtConfAddError("Invalid command line parameter '$$c'.")
            return()
        }

        type = $$eval(config.commandline.options.$${opt})
        isEmpty(type): \
            type = $$eval(config.commandline.options.$${opt}.type)
        isEmpty(type) {
            # no match in the regular options, try matching the prefixes
            for (p, config.commandline.prefix._KEYS_) {
                e = "^-$${p}(.*)"
                contains(c, $$e) {
                    opt = $$eval(config.commandline.prefix.$${p})
                    val = $$replace(c, $$e, "\\1")
                    type = "addString"
                    break()
                }
            }
        }
        # handle builtin [-no]-feature-xxx
        isEmpty(type):contains(opt, "feature-(.*)") {
            # simply skip for now
            next()
        }

        isEmpty(type) {
            qtConfAddError("Unknown command line option '$$c'.")
            return()
        }

        call = "qtConfCommandline_$${type}"
        !defined($$call, test): \
            error("Command line option '$$c' has unknown type '$$type'.")

        # now that we have opt and value, process it
        $${call}($$opt, $$val)
    }
}

defineTest(qtConfTest_shell) {
    test = $$eval($${1}.test)
    dir = $$replace(test, [^/]*$, "")
    test = $$replace(test, ([^/]*/)*, "")
    args = $$eval($${1}.args)
    # replace any things like $$QMAKE_CXX by their values
    eval(args = $$args)

    test_dir = $$QMAKE_CONFIG_TESTS_DIR/$$dir
    test_out_dir = $$shadowed($$test_dir)
    test_cmd_base = "cd $$system_quote($$system_path($$test_out_dir)) &&"

    mkpath($$test_out_dir)|error()

    qtRunLoggedCommand("$$test_cmd_base $$test_dir/$${test} $${args}"): \
        return(false)
    return(true)
}

defineReplace(qtConfToolchainSupportsFlag) {
    test_out_dir = $$shadowed($$QMAKE_CONFIG_TESTS_DIR)
    test_cmd_base = "cd $$system_quote($$system_path($$test_out_dir)) &&"

    conftest = "int main() { return 0; }"
    write_file("$$test_out_dir/conftest.cpp", conftest)|error()

    qtRunLoggedCommand("$$test_cmd_base $$QMAKE_CXX $${1} -o conftest-out conftest.cpp"): \
        return(true)
    return(false)
}

defineTest(qtConfTest_compilerSupportsFlag) {
    flag = $$eval($${1}.flag)

    return($$qtConfToolchainSupportsFlag($$flag))
}

defineTest(qtConfTest_linkerSupportsFlag) {
    flag = $$eval($${1}.flag)

    use_gold_linker: \
        LFLAGS = -fuse-ld=gold

    return($$qtConfToolchainSupportsFlag($$LFLAGS "-Wl,$$flag"))
}

defineReplace(qtConfFindInPath) {
    ensurePathEnv()
    for (dir, QMAKE_PATH_ENV) {
        exists("$$dir/$${1}"): \
            return("$$dir/$${1}")
    }
    return()
}

defineReplace(qtConfPkgConfigEnv) {
    env =
    !isEmpty(PKG_CONFIG_SYSROOT_DIR): env = "$${SETENV_PFX}PKG_CONFIG_SYSROOT_DIR=$${PKG_CONFIG_SYSROOT_DIR}$${SETENV_SFX} "
    !isEmpty(PKG_CONFIG_LIBDIR): env = "$$env$${SETENV_PFX}PKG_CONFIG_LIBDIR=$${PKG_CONFIG_LIBDIR}$${SETENV_SFX} "
    return($$env)
}

defineReplace(qtConfPkgConfig) {
    host = $$1
    isEmpty(host): host = false

    $$host {
        pkg_config = $$qtConfFindInPath("pkg-config")
    } else {
        pkg_config = "$$qtConfPkgConfigEnv()$$PKG_CONFIG"
    }

    return($$pkg_config)
}

defineTest(qtConfPkgConfigPackageExists) {
    isEmpty(1)|isEmpty(2): \
        return(false)

    !qtRunLoggedCommand("$${1} --exists --silence-errors $${2}"): \
        return(false)

    return(true)
}

defineReplace(qtConfPrepareArgs) {
    arglist = $$split(1)
    args =
    for (a, arglist): \
        args += $$system_quote($$a)
    return($$args)
}

defineTest(qtConfTest_pkgConfig) {
    pkg_config = $$qtConfPkgConfig($$eval($${1}.host))
    isEmpty(pkg_config): \
        return(false)
    args = $$qtConfPrepareArgs($$eval($${1}.pkg-config-args))

    !qtConfPkgConfigPackageExists($$pkg_config, $$args): \
        return(false)

    $${1}.libs = $$system("$$pkg_config --libs $$args", lines)
    $${1}.cflags = $$system("$$pkg_config --cflags $$args", lines)
    includes = $$system("$$pkg_config --cflags-only-I $$args", lines)
    eval(includes = $$includes)
    includes ~= s/^-I//g
    $${1}.includedir = "$$val_escape(includes)"
    version = $$system("$$pkg_config --modversion $$args")
    $${1}.version = $$first(version)
    export($${1}.libs)
    export($${1}.cflags)
    export($${1}.includedir)
    export($${1}.version)
    return(true)
}

defineTest(qtConfTest_getPkgConfigVariable) {
    pkg_config = $$qtConfPkgConfig($$eval($${1}.host))
    isEmpty(pkg_config): \
        return(false)
    args = $$qtConfPrepareArgs($$eval($${1}.pkg-config-args))

    !qtConfPkgConfigPackageExists($$pkg_config, $$args): \
        return(false)

    variable = $$eval($${1}.pkg-config-variable)
    $${1}.value = $$system("$$pkg_config --variable=$$variable $$args")
    export($${1}.value)
    return(true)
}

defineTest(qtConfTest_compile) {
    test = $$eval($${1}.test)
    host = $$eval($${1}.host)
    isEmpty(host): host = false

    # get package config information
    qtConfTest_pkgConfig($${1})

    test_dir = $$QMAKE_CONFIG_TESTS_DIR/$$test
    test_out_dir = $$shadowed($$test_dir)
    !isEmpty($${1}.pro): \
        test_dir = $$test_dir/$$eval($${1}.pro)
    test_cmd_base = "cd $$system_quote($$system_path($$test_out_dir)) &&"

    # Disable qmake features which are typically counterproductive for tests
    qmake_args = "\"CONFIG -= qt debug_and_release app_bundle lib_bundle\""

    # allow tests to behave differently depending on the type of library
    # being built (shared/static). e.g. see config.tests/unix/icu
    shared: \
        qmake_configs = "shared"
    else: \
        qmake_configs = "static"

    use_gold_linker: \
        qmake_configs += "use_gold_linker"

    # add console to the CONFIG variable when running the tests, so that they
    # can work with a regular main() entry point on Windows.
    qmake_configs += "console"

    qmake_args += "\"CONFIG += $$qmake_configs\""

    !$$host {
        # On WinRT we need to change the entry point as we cannot create windows
        # applications
        winrt: \
            qmake_args += " \"QMAKE_LFLAGS += /ENTRY:main\""

        # add compiler flags, these are set for the target and should not be applied to host tests
        !isEmpty(EXTRA_DEFINES): \
            qmake_args += $$system_quote(DEFINES += $$val_escape(EXTRA_DEFINES))
        !isEmpty(EXTRA_LIBDIR) \
            qmake_args += $$system_quote(QMAKE_LIBDIR += $$val_escape(EXTRA_LIBDIR))
        !isEmpty(EXTRA_FRAMEWORKPATH) \
            qmake_args += $$system_quote(QMAKE_FRAMEWORKPATH += $$val_escape(EXTRA_FRAMEWORKPATH))
        !isEmpty(EXTRA_INCLUDEPATH): \
            qmake_args += $$system_quote(INCLUDEPATH += $$val_escape(EXTRA_INCLUDEPATH))
        qmake_args += $$EXTRA_QMAKE_ARGS
    }

    libs = $$eval($${1}.libs)
    !isEmpty(libs): \
        qmake_args += "\"LIBS += $$libs\""

    includedir = $$eval($${1}.includedir)
    !isEmpty(includedir): \
        qmake_args += "\"INCLUDEPATH *= $$includedir\""

    # Clean up after previous run
    exists($$test_out_dir/Makefile): \
        QMAKE_MAKE = "$$QMAKE_MAKE clean && $$QMAKE_MAKE"

    mkpath($$test_out_dir)|error()

    !isEmpty(QMAKE_QTCONF): qtconfarg = -qtconf $$QMAKE_QTCONF

    # add possible command line args
    qmake_args += $$qtConfPrepareArgs($$eval($${1}.args))

    qtRunLoggedCommand("$$test_cmd_base $$qtConfPkgConfigEnv()$$system_quote($$system_path($$QMAKE_QMAKE)) $$qtconfarg $$qmake_args $$shell_quote($$test_dir)") {
        qtRunLoggedCommand("$$test_cmd_base $$QMAKE_MAKE"): \
            return(true)
    }

    return(false)
}

defineTest(logn) {
    log("$${1}$$escape_expand(\\n)")
}

defineTest(qtLogTestResult) {
    !isEmpty($${1}.log) {
        field = $$eval($${1}.log)
        log_msg = $$eval($${1}.$$field)
        msg = "test $$1 gave result $$log_msg"
    } else: $${2} {
        log_msg = yes
        msg = "test $$1 succeeded"
    } else {
        log_msg = no
        msg = "test $$1 FAILED"
    }
    $$QMAKE_CONFIG_VERBOSE: log_msg = $$msg
    logn("$$log_msg")
    write_file($$QMAKE_CONFIG_LOG, msg, append)
}

defineTest(qtConfIsBoolean) {
    equals(1, "true")|equals(1, "false"): \
        return(true)
    return(false)
}

defineTest(qtRunSingleTest) {
    tpfx = config.tests.$${1}
    defined($${tpfx}.result, var): \
        return()

    type = $$eval($${tpfx}.type)
    call = "qtConfTest_$$type"
    !defined($$call, test): \
        error("Configure test $${1} refers to nonexistent type $$type")

    description = $$eval($${tpfx}.description)
    !isEmpty(description) {
        msg = "checking for $${description}... "
        log($$msg)
        $$QMAKE_CONFIG_VERBOSE: log("$$escape_expand(\\n)")
        write_file($$QMAKE_CONFIG_LOG, msg, append)
    }

    msg = "executing config test $${1}"
    write_file($$QMAKE_CONFIG_LOG, msg, append)

    result = false
    $${call}($${tpfx}): result = true

    !isEmpty(description): qtLogTestResult($${tpfx}, $$result)
    $${tpfx}.result = $$result
    export($${tpfx}.result)
}

defineReplace(qtConfEvaluate) {
    isEmpty(1): return(true)

    1 ~= s/$$escape_expand(\\n) */ /g
    expr = $${1}
    expr ~= s/&&/ && /g
    expr ~= s/\|\|/ || /g
    expr ~= s/!/ ! /g
    expr ~= s/\\(/ ( /g
    expr ~= s/\\)/ ) /g
    expr ~= s/ *== */==/g
    expr ~= s/ *! = */!=/g
    expr_list = $$eval($$list($$expr))
    return($$qtConfEvaluateSubExpression($${1}, $$expr_list, 0))
}

defineReplace(qtConfEvaluateSingleExpression) {
    e = $${2}

    equals(e, true) {
        result = true
    } else: equals(e, false) {
        result = false
    } else: contains(e, "^[0-9]+$") {
        # numbers
        result = $$e
    } else: contains(e, "^'.*'$") {
        # quoted literals
        result = $$replace(e, "^'(.*)'$", "\\1")
    } else: contains(e, "^tests\..*") {
        !qt_conf_tests_allowed: \
            error("Expression '$${1}' refers to a test, which is not allowed at this stage of configuring.")
        test = $$section(e, ".", 1, 1)
        var = $$section(e, ".", 2, -1)
        isEmpty(var): \
            var = result
        !contains(config.tests._KEYS_, $$test): \
            error("Unknown test object $${test} in expression '$${1}'.")
        qtRunSingleTest($$test)
        result = $$eval(config.tests.$${test}.$${var})
    } else: contains(e, "^features\..*") {
        feature = $$section(e, ".", 1, 1)
        var = $$section(e, ".", 2, -1)
        isEmpty(var): \
            var = available
        !contains(config.features._KEYS_, $$feature): \
            error("Unknown feature object $${feature} in expression '$${1}'.")
        !qtConfCheckFeature($$feature): \
            error("Expression '$$1' is accessing non-emitted feature $${feature}.")
        result = $$eval(config.features.$${feature}.$${var})
    } else: contains(e, "^config\..*") {
        var = $$replace(e, "^config\.", "")
        result = false
        contains(CONFIG, $$var): result = true
    } else: contains(e, "^arch\..*") {
        var = $$replace(e, "^arch\.", "")
        result = false
        contains(QT_ARCH, $$var): result = true
    } else: contains(e, "^input\..*") {
        result = $$eval(config.$$e)
    } else: contains(e, "^var\..*") {
        var = $$replace(e, "^var\.", "")
        result = $$eval($$var)
    } else: contains(e, "^call\..*") {
        call = $$replace(e, "^call\.", "qtConfFunc_")
        !defined($$call, replace): \
            error("Call $$call referenced in expression '$${1}' does not exist")
        eval(result = \$\$"$$call"())
    } else {
        error("Unrecognized token $$e in expression '$${1}'")
    }
    return($$result)
}

defineReplace(qtConfEvaluateSubExpression) {
    expr_list = $${2}
    result = true
    negate = false
    runSubExpression = false
    nesting_level = 0
    for (n, $${3}..$$num_add($$size(expr_list), -1)) {
        e = $$member(expr_list, $$n)
        $$runSubExpression {
            runSubExpression = false
            result = $$qtConfEvaluateSubExpression($${1}, $$expr_list, $$n)
        } else: isEqual(e, "(") {
            isEqual(nesting_level, 0): runSubExpression = true
            nesting_level = $$num_add($$nesting_level, 1)
            next()
        } else: isEqual(e, ")") {
            nesting_level = $$num_add($$nesting_level, -1)
            lessThan(nesting_level, 0): break()
            next()
        } else: greaterThan(nesting_level, 0) {
            next()
        } else: isEqual(e, "!") {
            negate = true
            next()
        } else: isEqual(e, "&&") {
            !qtConfIsBoolean($$result): \
                error("Left hand side of && is non-boolean value '$$result' in expression '$${1}'")
            !$$result: return(false)
        } else: isEqual(e, "||") {
            !qtConfIsBoolean($$result): \
                error("Left hand side of || is non-boolean value '$$result' in expression '$${1}'")
            $$result: return(true)
        } else {
            contains(e, ".*==.*") {
                lhs = $$qtConfEvaluateSingleExpression($${1}, $$replace(e, "==.*", ""))
                rhs = $$qtConfEvaluateSingleExpression($${1}, $$replace(e, ".*==", ""))
                result = false
                equals(lhs, $$rhs): result = true
            } else: contains(e, ".*!=.*") {
                lhs = $$qtConfEvaluateSingleExpression($${1}, $$replace(e, "!=.*", ""))
                rhs = $$qtConfEvaluateSingleExpression($${1}, $$replace(e, ".*!=", ""))
                result = false
                !equals(lhs, $$rhs): result = true
            } else {
                result = $$qtConfEvaluateSingleExpression($${1}, $$e)
            }
        }
        $$negate {
            !qtConfIsBoolean($$result): \
                error("Attempting to negate a non-boolean value '$$result' in expression '$${1}'")
            $$result: \
                result = false
            else: \
                result = true
            negate = false
        }
    }
    return($$result)
}

defineReplace(qtIsFeatureEnabled) {
    enable = $$eval(config.features.$${1}.enable)
    !isEmpty(enable) {
        $$qtConfEvaluate($$enable): \
            return(true)
    } else {
        equals(config.input.$${1}, "yes"): \
            return(true)
    }

    return(false)
}

defineReplace(qtIsFeatureDisabled) {
    disable = $$eval(config.features.$${1}.disable)
    !isEmpty(disable) {
        $$qtConfEvaluate($$disable): \
            return(true)
    } else {
        equals(config.input.$${1}, "no"): \
            return(true)
    }

    return(false)
}

defineReplace(qtConfCheckSingleCondition) {
    result = $$qtConfEvaluate($$2)

    !qtConfIsBoolean($$result): \
        error("Evaluation of condition '$$2' yielded non-boolean value '$$result' in feature '$${1}'.")

    !$$result {
        $${3} {
            qtConfAddError("Feature '$${1}' was enabled, but the pre-condition '$$2' failed.", log)
            $$result = true
        }
    }
    return($$result)
}

defineTest(qtConfCheckFeature) {
    fpfx = config.features.$${1}

    available = $$eval($${fpfx}.available)
    !isEmpty(available): return(true)

    # skip features that will not get emitted anyway
    emitIf = $$qtConfEvaluate($$eval($${fpfx}.emitIf))
    enabled = $$qtIsFeatureEnabled($$1)
    disabled = $$qtIsFeatureDisabled($$1)

    !$$emitIf {
        $$enabled|$$disabled: \
            qtConfAddWarning("Feature $${1} is insignificant in this configuration, ignoring related command line option(s).")
        return(false)
    }

    $$disabled {
        result = false
    } else: !$$enabled:!$$qtConfEvaluate($$eval($${fpfx}.autoDetect)) {
        # feature not auto-detected and not explicitly enabled
        result = false
    } else {
        condition = $$eval($${fpfx}.condition)
        !isEmpty(condition) {
            result = $$qtConfCheckSingleCondition($$1, $$condition, $$enabled)
        } else {
            result = true
            # check whether we have an array of conditions
            for (i, $${fpfx}.condition._KEYS_) {
                condition = $$eval($${fpfx}.condition.$$i)
                result = $$qtConfCheckSingleCondition($$1, $$condition, $$enabled)
                !$$result: break()
            }
        }
    }
    $${fpfx}.available = $$result
    export($${fpfx}.available)

    for (i, config.features.$${feature}.output._KEYS_): \
        qtConfProcessOneOutput($$feature, $$i)

    return(true)
}


defineTest(qtConfProcessFeatures) {
    priorities = 0
    for (feature, config.features._KEYS_): \
        priorities += $$eval(config.features.$${feature}.priority)
    priorities = $$unique(priorities)

    for (p, priorities): \
        opriorities += $$format_number($$num_add($$p, 10000), width=5 zeropad)
    opriorities = $$sorted(opriorities)

    priorities =
    for (op, opriorities): \
        priorities += $$num_add($$op, -10000)

    for (priority, priorities) {
        for (feature, config.features._KEYS_) {
            p = $$eval(config.features.$${feature}.priority)
            isEmpty(p): p = 0
            equals(p, $$priority): \
                qtConfCheckFeature($$feature)
        }
    }
}

#
# reporting
#

QT_CONF_REPORT_PADDING = "........................................"

defineTest(qtConfReportPadded) {
    pad = $$num_add($$str_size($$QT_CONF_REPORT_PADDING), -$$str_size($${1}))
    lessThan(pad, 0): pad = 0
    str = "$$1 $$str_member($$QT_CONF_REPORT_PADDING, 0, $$pad)"

    qtConfAddReport("$$str $${2}")
}

defineReplace(qtConfCollectFeatures) {
    l =
    for (feature, $$list($${1})) {
        $$eval(config.features.$${feature}.available): \
            l += $$eval(config.features.$${feature}.description)
    }

    isEmpty(l): return("<none>")
    return($$join(l, ' '))
}

defineTest(qtConfReport_featureList) {
    qtConfReportPadded($${1}, $$qtConfCollectFeatures($${2}))
}

defineReplace(qtConfFindFirstAvailableFeature) {
    for (feature, $$list($${1})) {
        isEmpty(config.features.$${feature}._KEYS_): \
            error("Asking for a report on undefined feature $${2}.")
        $$eval(config.features.$${feature}.available): \
            return($$eval(config.features.$${feature}.description))
    }

    return("<none>")
}

defineTest(qtConfReport_firstAvailableFeature) {
    qtConfReportPadded($${1}, $$qtConfFindFirstAvailableFeature($${2}))
}

defineTest(qtConfReport_feature) {
    !contains(config.features._KEYS_, $$2): \
        error("Asking for a report on undefined feature $${2}.")

    # hide report for not emitted features
    isEmpty(config.features.$${2}.available): \
        return()

    $$eval(config.features.$${2}.available) {
        result = "yes"
        !isEmpty(3): result = "$${3}"
    } else {
        result = "no"
        !isEmpty(4): result = "$${4}"
    }

    text = $$eval(config.features.$${2}.description)

    qtConfReportPadded($${1}$$text, $$result)
}

defineTest(qtConfReport_note) {
    qtConfAddNote($${1})
}

defineTest(qtConfReport_warning) {
    qtConfAddWarning($${1})
}

defineTest(qtConfReport_error) {
    qtConfAddError($${1}, log)
}

defineTest(qtConfCreateReportRecurse) {
    equals(2, false) {
        indent = ""
        recurse = false
    } else {
        indent = $${2}
        recurse = true
    }

    keys = $$eval($${1}._KEYS_)
    for (n, keys) {
        entry = $${1}.$$n
        subKeys = $$eval($${entry}._KEYS_)
        contains(subKeys, condition) {
            condition = $$eval($${entry}.condition)
            r = $$qtConfEvaluate($$condition)
            !qtConfIsBoolean($$r): \
                error("Evaluation of condition '$$condition' in report entry $${entry} yielded non-boolean value '$$r'.")
            !$$r: next()
        }
        contains(subKeys, "section") {
            !$$recurse: \
                error("Report type 'section' is not allowed in '$$1'.")
            section = $$eval($${entry}.section)
            qtConfAddReport("$$indent$$section:")
            qtConfCreateReportRecurse("$${entry}.entries", "$$indent  ")
        } else: !isEmpty($${entry}) {
            feature = $$eval($${entry})
            qtConfReport_feature($$indent, $$feature)
        } else {
            text = $$eval($${entry}.message)
            isEmpty($${entry}.type): \
                error("Report entry $${entry} doesn't define a type.")
            r = "qtConfReport_$$eval($${entry}.type)"
            !defined($$r, test): \
                error("Undefined report type $$eval($${entry}.type) used in report entry $${entry}.")
            args = $$eval($${entry}.args)
            $${r}($$indent$${text}, $$args)
        }
    }
}

defineTest(qtConfProcessEarlyChecks) {
    qtConfCreateReportRecurse(config.earlyReport, false)
    qtConfCheckErrors()
}


defineTest(qtConfCreateReport) {
    qtConfAddReport(" ")
    qtConfCreateReportRecurse(config.report, false)
}

defineTest(qtConfCreateSummary) {
    qtConfCreateReportRecurse(config.summary, "")
}

defineTest(qtConfPrintReport) {
    for (n, QT_CONFIGURE_REPORT): \
        logn($$n)
    logn()

    for (n, QT_CONFIGURE_NOTES) {
        logn($$n)
        logn()
    }

    for (w, QT_CONFIGURE_WARNINGS) {
        logn($$w)
        logn()
    }

    !isEmpty(QT_CONFIGURE_ERRORS) {
        for (e, QT_CONFIGURE_ERRORS) {
            logn($$e)
            logn()
        }
        mention_config_log:!$$QMAKE_CONFIG_VERBOSE {
            logn("Check config.log for details.")
            logn()
        }

        !equals(config.input.continue, yes): \
            error()
    }
}

defineTest(qtConfCheckErrors) {
    !isEmpty(QT_CONFIGURE_ERRORS):!equals(config.input.continue, yes): \
        qtConfPrintReport()
}

#
# output generation
#

defineReplace(qtConfOutputSelectProFile) {
    !isEmpty($${1}.public) {
        $$eval($${1}.public): \
            return(publicPro)
    }
    return(privatePro)
}


# qtConfOutputVar(modifier, output, name, value)
defineTest(qtConfOutputVar) {
    modifier = $$1
    output = $$2
    name = $$3
    value = $$val_escape(4)

    !isEmpty(config.output.$${output}.assign.$${name}): \
        error("Trying to overwrite assigned variable '$$name' in '$$output' using modifier '$$modifier'.")

    equals(modifier, assign) {
        !isEmpty(config.output.$${output}.append.$${name})|!isEmpty(config.output.$${output}.remove.$${name}): \
            error("Trying to assign variable '$$name' in '$$output', which has already appended or removed parts.")
        config.output.$${output}.$${modifier}.$${name} = $$value
    } else: equals(modifier, append) {
        contains(config.output.$${output}.remove.$${name}, $$value): \
            error("Trying to append removed '$$value' to variable '$$name' in '$$output'.")
        config.output.$${output}.$${modifier}.$${name} += $$value
    } else: equals(modifier, remove) {
        contains(config.output.$${output}.append.$${name}, $$value): \
            error("Trying to remove appended '$$value' to variable '$$name' in '$$output'.")
        config.output.$${output}.$${modifier}.$${name} += $$value
    } else {
        error("Invalid modifier '$$modifier' passed to qtConfOutputVar.")
    }
    config.output.$${output}.$${modifier}._KEYS_ *= $${name}
    export(config.output.$${output}.$${modifier}.$${name})
    export(config.output.$${output}.$${modifier}._KEYS_)
}

defineTest(qtConfOutputVarHelper) {
    negative = $$eval($${2}.negative)
    isEmpty(negative): negative = false
    !$${3}:!$$negative: return()
    $${3}:$$negative: return()

    output = $$qtConfOutputSelectProFile($${2})
    name = $$eval($${2}.name)
    isEmpty(name): \
        error("Output type 'var$$title($$1)' used in feature '$$eval($${2}.feature)' without a 'name' entry.")

    value = $$qtConfEvaluate($$eval($${2}.value))
    qtConfOutputVar($$1, $$output, $$name, $$value)
}

defineTest(qtConfOutput_varAssign) {
    qtConfOutputVarHelper(assign, $$1, $$2)
}

defineTest(qtConfOutput_varAppend) {
    qtConfOutputVarHelper(append, $$1, $$2)
}

defineTest(qtConfOutput_varRemove) {
    qtConfOutputVarHelper(remove, $$1, $$2)
}

defineTest(qtConfOutputConfigVar) {
    pro = $$3
    var = $$4
    negative = $$eval($${1}.negative)
    isEmpty(negative): negative = false

    val = $$eval($${1}.name)
    isEmpty(val) {
        val = $$eval($${1}.feature)
        $$negative: val = no-$$val
    }

    $${2} {
        !$$negative: qtConfOutputVar(append, $$pro, $$var, $$val)
    } else {
        $$negative: qtConfOutputVar(append, $$pro, $$var, $$val)
    }
}

defineTest(qtConfOutput_publicQtConfig) {
    qtConfOutputConfigVar($$1, $$2, "publicPro", "QT_CONFIG")
}

defineTest(qtConfOutput_publicConfig) {
    qtConfOutputConfigVar($$1, $$2, "publicPro", "CONFIG")
}

defineTest(qtConfOutput_privateConfig) {
    qtConfOutputConfigVar($$1, $$2, "privatePro", "CONFIG")
}

defineTest(qtConfOutputSetDefine) {
    config.output.$${1}.$${2} = $${3}
    config.output.$${1}._KEYS_ *= $${2}
    export(config.output.$${1}.$${2})
    export(config.output.$${1}._KEYS_)
}

defineTest(qtConfOutput_define) {
    output = publicHeader
    define = $$eval($${1}.name)
    value = $$qtConfEvaluate($$eval($${1}.value))
    isEmpty(define): \
        error("Output type 'define' used in feature '$$eval($${1}.feature)' without a 'name' entry.")

    negative = $$eval($${1}.negative)
    isEmpty(negative): negative = false

    $${2} {
        !$$negative: qtConfOutputSetDefine($$output, $$define, $$value)
    } else {
        $$negative: qtConfOutputSetDefine($$output, $$define, $$value)
    }
}

defineTest(qtConfOutput_feature) {
    name = "$$eval($${1}.name)"
    isEmpty(name): \
        name = $$eval($${1}.feature)

    $${2} {
        qtConfOutputVar(append, "publicPro", "QT_CONFIG", $$name)
    } else {
        f = $$upper($$replace(name, -, _))
        qtConfOutputSetDefine("publicHeader", "QT_NO_$$f")
    }
}

# currently this is somewhat inconsistent, as the feature is output to the public pro file,
# whereas the define is being added to the private pro file.
# This should get cleaned up to add to the private pro and header instead.
defineTest(qtConfOutput_privateFeature) {
    name = "$$eval($${1}.name)"
    isEmpty(name): \
        name = $$eval($${1}.feature)

    $${2} {
        qtConfOutputVar(append, "publicPro", "QT_CONFIG", $$name)
    } else {
        f = $$upper($$replace(name, -, _))
        qtConfOutputVar(append, "privatePro", "DEFINES", "QT_NO_$$f")
    }
}


defineTest(qtConfOutput_library) {
    !$${2}: return()

    output = privatePro
    name = "$$eval($${1}.name)"
    isEmpty(name): \
        name = $$eval($${1}.feature)
    NAME = $$upper($$replace(name, [-.], _))

    test = $$eval($${1}.test)
    isEmpty(test): \
        error("Output type 'library' used in feature '$$eval($${1}.feature)' without a 'test' entry.")
    lookup = "config.tests.$$test"
    isEmpty($${lookup}._KEYS_): \
        error("Output type 'library' used in feature '$$eval($${1}.feature)' refers to undefined test '$$test'.")

    eval(libs = $$eval($${lookup}.libs))
    eval(cflags = $$eval($${lookup}.cflags))
    eval(includes = $$eval($${lookup}.includedir))
    version = $$split($${lookup}.version, '.')

    !isEmpty(libs): qtConfOutputVar(assign, $$output, QMAKE_LIBS_$$NAME, $$libs)
    !isEmpty(cflags): qtConfOutputVar(assign, $$output, QMAKE_CFLAGS_$$NAME, $$cflags)
    !isEmpty(includes): qtConfOutputVar(assign, $$output, QMAKE_INCDIR_$$NAME, $$includes)
    !isEmpty(version) {
        qtConfOutputVar(assign, $$output, QMAKE_$${NAME}_VERSION_MAJOR, $$first(version))
        qtConfOutputVar(assign, $$output, QMAKE_$${NAME}_VERSION_MINOR, $$member(version, 1))
        qtConfOutputVar(assign, $$output, QMAKE_$${NAME}_VERSION_PATCH, $$member(version, 2))
    }
    export(config.output.$${output})
}

defineTest(qtConfProcessOneOutput) {
    feature = $${1}
    fpfx = config.features.$${feature}
    opfx = $${fpfx}.output.$${2}

    condition = $$eval($${opfx}.condition)
    !isEmpty(condition):!$$qtConfEvaluate($$condition): \
        return()

    call = $$eval($${opfx}.type)
    isEmpty(call) {
        # output is just a string, not an object
        call = $$eval($$opfx)
    }
    !defined("qtConfOutput_$$call", test): \
        error("Undefined type '$$call' in output '$$2' of feature '$$feature'.")

    isEmpty($${opfx}.feature): \
        $${opfx}.feature = $$feature

    condition = $$eval($${opfx}.condition)
    !isEmpty(condition) {
        !$$qtConfEvaluate($$condition): \
            return(false)
    }

    qtConfOutput_$${call}($$opfx, $$eval($${fpfx}.available))
}

defineTest(qtConfProcessOutput) {
    # write it to the output files
    for (type, config.files._KEYS_) {
        file = $$OUT_PWD/$$eval(config.files.$${type})
        contains(type, ".*Pro") {
            for (k, config.output.$${type}.assign._KEYS_): \
                config.output.$$type += "$$k = $$eval(config.output.$${type}.assign.$$k)"
            for (k, config.output.$${type}.remove._KEYS_): \
                config.output.$$type += "$$k -= $$eval(config.output.$${type}.remove.$$k)"
            for (k, config.output.$${type}.append._KEYS_): \
                config.output.$$type += "$$k += $$eval(config.output.$${type}.append.$$k)"
        } else {
            for (define, config.output.$${type}._KEYS_) {
                value = $$eval(config.output.$${type}.$${define})
                config.output.$$type += "$${LITERAL_HASH}ifndef $$define"
                config.output.$$type += "$${LITERAL_HASH}define $$define $$value"
                config.output.$$type += "$${LITERAL_HASH}endif"
            }
        }
        defined(qtConfOutputPostProcess_$${type}, test): \
            qtConfOutputPostProcess_$${type}()

        write_file($$file, config.output.$${type})|error()
    }
}

#
# tie it all together
#

defineTest(qtConfigure) {
    # load configuration data
    configure_data = $$cat($${1}, blob)
    !parseJson(configure_data, config): \
        error("Invalid or non-existent file $${1}.")

    qtConfParseCommandLine()

    # do early checks, mainly to validate the command line
    qtConfProcessEarlyChecks()

    CONFIG += qt_conf_tests_allowed
    logn()
    logn("Running configuration tests...")

    # process all features
    qtConfProcessFeatures()

    # generate files and reports
    qtConfProcessOutput()
    qtConfCreateReport()
    qtConfCreateSummary()

    logn("Done running configuration tests.")
    logn()
}

qtConfigure($$_PRO_FILE_PWD_/configure.json)

logn("Configure summary:")
logn()

qtConfPrintReport()