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defineReplace(qtPlatformTargetSuffix) {
    CONFIG(debug, debug|release) {
        !debug_and_release|build_pass {
           mac:return(_debug)
           win32:return(d)
        }
    }
    return()
}

defineReplace(qtLibraryTarget) {
   LIBRARY_NAME = $$1
   mac:CONFIG(shared, static|shared):contains(QT_CONFIG, qt_framework) {
      QMAKE_FRAMEWORK_BUNDLE_NAME = $$LIBRARY_NAME
      export(QMAKE_FRAMEWORK_BUNDLE_NAME)
   } else {
       # insert the major version in the library name
       # unless it's a framework build
       MAJOR_VERSION = $$section(VERSION, ., 0, 0)
       LIBRARY_NAME ~= s,^Qt,Qt$$MAJOR_VERSION,
   }
   return($$LIBRARY_NAME$$qtPlatformTargetSuffix())
}

defineTest(qtAddLibrary) {
    warning("qtAddLibrary() is deprecated. Use qtAddModule() or QT+= instead.")

    # Reverse-engineer the module name from the library name.
    for(var, $$list($$find($$list($$enumerate_vars()), ^QT\\.[^.]+\\.name$))) {
        isEqual($$var, $$1) {
            var ~= s,^QT\\.([^.]+)\\.name$,\\1,
            qtAddModule($$var, , LIBS):return(true):break()
            return(false):break() # Yes, the break is insanity. But necessary.
        }
    }
    error("No module matching library '$$1' found.")
}

# target variable, flag source variable
defineTest(qtProcessModuleFlags) {
    for(flag, $$2) {
        contains(flag, ^-.*): \
            $$1 -= $$replace(flag, ^-, )
        else: \
            $$1 += $$flag
    }
    export($$1)
}

# qt module
defineTest(qtHaveModule) {
    !isEmpty(QT.$${1}.name): \
        return(true)
    return(false)
}

# qt module, UsePrivate flag, libs variable
defineTest(qtAddModule) {
    MODULE_NAME = $$eval(QT.$${1}.name)
    MODULE_INCLUDES = $$eval(QT.$${1}.includes)
    MODULE_LIBS = $$eval(QT.$${1}.libs)
    MODULE_CONFIG = $$eval(QT.$${1}.module_config)
    MODULE_MAJOR_VERSION = $$eval(QT.$${1}.MAJOR_VERSION)

    qtProcessModuleFlags(CONFIG, QT.$${1}.CONFIG)
    qtProcessModuleFlags(DEFINES, QT.$${1}.DEFINES)

    MODULE_INCLUDES -= $$QMAKE_DEFAULT_INCDIRS
    MODULE_LIBS_ADD = $$MODULE_LIBS
    MODULE_LIBS_ADD -= $$QMAKE_DEFAULT_LIBDIRS

    INCLUDEPATH *= $$MODULE_INCLUDES
    auto_use_privates|isEqual(2, UsePrivate) { # Tests function parameter 2 ($$2) being equal to 'UsePrivate'
        INCLUDEPATH += $$eval(QT.$${1}.private_includes)
    }

    unset(LINKAGE)
    mac {
        contains(MODULE_CONFIG, lib_bundle) {
          FRAMEWORK_INCLUDE = $${MODULE_LIBS}/$${MODULE_NAME}.framework/Headers
          !qt_no_framework_direct_includes:exists($$FRAMEWORK_INCLUDE) {
               INCLUDEPATH *= $$FRAMEWORK_INCLUDE
               LINKAGE = -F$${MODULE_LIBS}
          } else {
               QMAKE_FRAMEWORKPATH *= $${MODULE_LIBS}
          }
          LINKAGE += -framework $${MODULE_NAME}$${QT_LIBINFIX}
        }
    }

    # Re-insert the major version in the library name (cf qtLibraryTarget above)
    # unless it's a framework build
    !mac|!contains(MODULE_CONFIG, lib_bundle): \
        MODULE_NAME ~= s,^Qt,Qt$$MODULE_MAJOR_VERSION,

    win32 {
        # Make sure the version number isn't appended again to the lib name
        ver_var    = QMAKE_$${upper($$MODULE_NAME$$QT_LIBINFIX)}_VERSION_OVERRIDE
        dver_var   = QMAKE_$${upper($$MODULE_NAME$$QT_LIBINFIX)}D_VERSION_OVERRIDE
        $$ver_var  = 0
        $$dver_var = 0
        export($$ver_var)
        export($$dver_var)
    }

    isEmpty(LINKAGE) {
       !isEmpty(MODULE_LIBS_ADD): LINKAGE = -L$$MODULE_LIBS_ADD
       lib =
       if(!debug_and_release|build_pass):CONFIG(debug, debug|release) {
           win32: lib = $${MODULE_NAME}$${QT_LIBINFIX}d
           mac: lib = $${MODULE_NAME}$${QT_LIBINFIX}_debug
       }
       isEmpty(lib): lib = $${MODULE_NAME}$${QT_LIBINFIX}
       LINKAGE += -l$$lib

       contains(QT_CONFIG, rpath): QMAKE_RPATHDIR *= $$eval(QT.$${1}.rpath)

       contains(MODULE_CONFIG, staticlib): \
           PRE_TARGETDEPS *= $$MODULE_LIBS/$${QMAKE_PREFIX_STATICLIB}$${lib}.$${QMAKE_EXTENSION_STATICLIB}
    }
    # Only link to this module if a libs directory is set, else this is just a module
    # to give access to sources or include files, and not for linking.
    !isEmpty(MODULE_LIBS) {
        !isEmpty(QMAKE_LSB) {
            !isEmpty(MODULE_LIBS_ADD): QMAKE_LFLAGS *= --lsb-libpath=$$MODULE_LIBS_ADD
            QMAKE_LIBDIR *= /opt/lsb/lib
            QMAKE_LFLAGS *= --lsb-shared-libs=$${MODULE_NAME}$${QT_LIBINFIX}
        }
        $$3 += $$LINKAGE
    }
    export($$3)
    export(INCLUDEPATH)
    export(QMAKE_FRAMEWORKPATH)
    export(QMAKE_LFLAGS)
    export(QMAKE_LIBDIR)
    export(QMAKE_RPATHDIR)
    export(QMAKE_RPATHLINKDIR)
    export(PRE_TARGETDEPS)
    return(true)
}

# qt variable, libs variable
defineTest(qtAddModules) {
    # Figure out from which modules we're wanting to use the private headers
    NEWQT =
    for(QTLIB, $$1) {
        QTLIBRAW = $$replace(QTLIB, -private$, )
        !isEqual(QTLIBRAW, $$QTLIB) {
            want_var = QT.$${QTLIBRAW}.want_private
            $$want_var = UsePrivate
            using_privates = true
            NEWQT += $$eval(QT.$${QTLIBRAW}.private_depends)
        }
        NEWQT += $$QTLIBRAW
        contains(QT.$${QTLIBRAW}.CONFIG, auto_use_privates): CONFIG += auto_use_privates
    }
    # Topological resolution of modules based on their QT.<module>.depends variable
    $$1 = $$resolve_depends(NEWQT, "QT.")
    # Finally actually add the modules
    unset(BAD_QT)
    for(QTLIB, $$1) {
        QTLIBNAME = $$eval(QT.$${QTLIB}.name)
        isEmpty(QTLIBNAME) {
            BAD_QT += $$QTLIB
            next()
        }

        target_qt:isEqual(TARGET, $$QTLIBNAME) {
            warning("$$TARGET cannot have a $$1 of $$QTLIB")
            next()
        }

        qtAddModule($$QTLIB, $$eval(QT.$${QTLIB}.want_private), $$2)
    }
    !isEmpty(BAD_QT):error("Unknown module(s) in $$1: $$BAD_QT")

    export(using_privates)
}

defineTest(qtAddRpathLink) {
    # -rpath-link is used by the linker to find dependencies of dynamic
    # libraries which were NOT specified on the command line.
    # This means that paths of direct dependencies (QT & QT_PRIVATE)
    # don't need to appear here. However, their private dependencies'
    # paths OTOH need to be put there.
    pubqt = $$replace(1, -private$, )
    pubdep = $$resolve_depends(pubqt, "QT.")
    privdep = $$resolve_depends(pubqt, "QT.", ".depends" ".private_depends" ".run_depends")
    privdep -= $$pubdep
    rpaths =
    for(dep, privdep): \
        rpaths += $$eval(QT.$${dep}.libs)
    QMAKE_RPATHLINKDIR *= $$unique(rpaths)
    export(QMAKE_RPATHLINKDIR)
}

# variable, default
defineTest(qtPrepareTool) {
    $$1 = $$eval(QT_TOOL.$${2}.command)
    isEmpty($$1) {
        $$1 = $$[QT_HOST_BINS]/$$2
        contains(QMAKE_HOST.os, Windows):!contains($$1, .*\\.(exe|bat)$) {
            exists($$eval($$1).bat) {
                $$1 = $$eval($$1).bat
            } else {
                $$1 = $$eval($$1).exe
            }
        } else:contains(QMAKE_HOST.os, Darwin) {
            BUNDLENAME = $$eval($$1).app/Contents/MacOS/$$2
            exists($$BUNDLENAME) {
                $$1 = $$BUNDLENAME
            }
        }
        $$1 = $$shell_path($$eval($$1))
    }
    export($$1)
}

defineTest(qtAddToolEnv) {
    for(env, 2) {
        value = $$eval($${env}.value)
        !isEmpty(value) {
            name = $$eval($${env}.name)
            equals(QMAKE_DIR_SEP, /) {
                contains($${env}.CONFIG, prepend): infix = \${$$name:+:\$$$name}
                else: infix =
                val = "$$name=$$join(value, :)$$infix"
            } else {
                # Escape closing parens when expanding the variable, otherwise cmd confuses itself.
                contains($${env}.CONFIG, prepend): infix = ;%$$name:)=^)%
                else: infix =
                val = "(set $$name=$$join(value, ;)$$infix) &"
            }
            contains(MAKEFILE_GENERATOR, MS.*): val ~= s,%,%%,g
            else: val ~= s,\\\$,\$\$,g
            $$1 = "$$val $$eval($$1)"
        }
    }
    export($$1)
}

defineTest(qtAddTargetEnv) {
    deps = $$replace(QT, -private$, )
    deps = $$resolve_depends(deps, "QT.")
    !isEmpty(deps) {
        for(dep, deps) {
            deppath += $$shell_path($$eval(QT.$${dep}.libs))
            for(rpath, QT.$${dep}.rpath_link): \
                deppath += $$shell_path($$rpath)
        }
        equals(QMAKE_HOST.os, Windows) {
            deppath.name = PATH
        } else:contains(QMAKE_HOST.os, Linux|FreeBSD) {
            deppath.name = LD_LIBRARY_PATH
        } else:equals(QMAKE_HOST.os, Darwin) {
            contains(QT_CONFIG, qt_framework): \
                deppath.name = DYLD_FRAMEWORK_PATH
            else: \
                deppath.name = DYLD_LIBRARY_PATH
        } else {
            error("Operating system not supported.")
        }
        deppath.value = $$unique(deppath)
        deppath.CONFIG = prepend

        pluginpath.value =
        for(qmod, QMAKEMODULES) {
            qmod = $$section(qmod, /, 0, -3)/plugins
            exists($$qmod): pluginpath.value += $$shell_path($$qmod)
        }
        pluginpath.name = QT_PLUGIN_PATH

        QT_TOOL_ENV += deppath pluginpath
    }
    qtAddToolEnv($$1, $$QT_TOOL_ENV)
}

defineReplace(pkgConfigExecutable) {
    isEmpty(PKG_CONFIG) {
        PKG_CONFIG = pkg-config

        !isEmpty(PKG_CONFIG_SYSROOT_DIR) {
            win32:isEmpty(MINGW_IN_SHELL):PKG_CONFIG = set PKG_CONFIG_SYSROOT_DIR=$$PKG_CONFIG_SYSROOT_DIR& $$PKG_CONFIG
            else:PKG_CONFIG = PKG_CONFIG_SYSROOT_DIR=\"$$PKG_CONFIG_SYSROOT_DIR\" $$PKG_CONFIG
        }

        !isEmpty(PKG_CONFIG_LIBDIR) {
            win32:isEmpty(MINGW_IN_SHELL):PKG_CONFIG = set PKG_CONFIG_LIBDIR=$$PKG_CONFIG_LIBDIR& $$PKG_CONFIG
            else:PKG_CONFIG = PKG_CONFIG_LIBDIR=\"$$PKG_CONFIG_LIBDIR\" $$PKG_CONFIG
        }
    }

    return($$PKG_CONFIG)
}

defineTest(packagesExist) {
    contains(QT_CONFIG, no-pkg-config):return(false)

    # this can't be done in global scope here because qt_functions is loaded
    # before the .pro is parsed, so if the .pro set PKG_CONFIG, we wouldn't know it
    # yet. oops.
    pkg_config = $$pkgConfigExecutable()

    for(package, ARGS) {
        !system($$pkg_config --exists $$package):return(false)
    }

    return(true)
}

# Prepares target that will iterate through all subdirs (except those
# with no_default_target or no_{name_of_target}_target. The prepared
# target must still be manually added to QMAKE_EXTRA_TARGETS.
defineTest(prepareRecursiveTarget) {
    target = $$1
    no_$${target}_target: return()

    for(subdir, SUBDIRS) {
        subdir_config = $$eval($${subdir}.CONFIG)
        contains(subdir_config, no_default_target): next()
        contains(subdir_config, no_$${target}_target): next()

        $${target}.recurse += $$subdir
    }

    # Set up the recurse target only when there
    # is something to recurse into.
    isEmpty($${target}.recurse): return()

    $${target}.CONFIG = recursive
    $${target}.recurse_target = $${target}

    export($${target}.recurse)
    export($${target}.CONFIG)
    export($${target}.recurse_target)
}