# -*- icu-dependencies -*-
# Copyright (C) 2011-2016, International Business Machines
# Corporation and others. All Rights Reserved.
#
# file name: dependencies.txt
#
# created on: 2011may26
# created by: Markus W. Scherer
#
# See http://site.icu-project.org/processes/release/tasks/healthy-code#TOC-Check-library-dependencies

# Standard library symbols used by ICU --------------------------------------- #

system_symbols:
  deps
    # C
    PIC system_debug malloc_functions c_strings c_string_formatting
    floating_point trigonometry
    stdlib_qsort
    pthread system_locale
    stdio_input stdio_output file_io readlink_function dir_io mmap_functions dlfcn
    # C++
    cplusplus iostream

group: PIC
    # Position-Independent Code (-fPIC) requires a Global Offset Table.
    _GLOBAL_OFFSET_TABLE_

group: system_debug
    __assert_fail __stack_chk_fail

group: malloc_functions
    free malloc realloc

group: c_strings
    isspace isdigit
    __ctype_b_loc  # for <ctype.h>
    # We must not use tolower and toupper because they are system-locale-sensitive (Turkish i).
    strlen strchr strrchr strstr strcmp strncmp strcpy strncpy strcat strncat
    memcmp memcpy memmove memset
    # Additional symbols in an optimized build.
    __strcpy_chk __strncpy_chk __strcat_chk __strncat_chk
    __rawmemchr __memcpy_chk __memmove_chk __memset_chk

group: c_string_formatting
    atoi atol strtod strtol strtoul
    sprintf
    # Additional symbols in an optimized build.
    __sprintf_chk

group: floating_point
    abs fabs floor ceil modf fmod log pow sqrt

group: trigonometry
    acos asin atan atan2 cos sin tan
    # Additional symbols in an optimized build.
    sincos

group: stdlib_qsort
    qsort

group: pthread
    pthread_mutex_init pthread_mutex_destroy pthread_mutex_lock pthread_mutex_unlock
    pthread_cond_wait pthread_cond_broadcast pthread_cond_signal

group: system_locale
    getenv
    nl_langinfo setlocale
    gettimeofday localtime_r tzname tzset __timezone

group: stdio_input
    fopen fclose fgets fread fseek ftell rewind feof fileno
    # Additional symbols in an optimized build.
    __fgets_chk __fread_chk

group: stdio_output
    fflush fwrite
    stdout

group: file_io
    open close stat
    # Additional symbols in an optimized build.
    __xstat

group: readlink_function
    readlink  # putil.cpp uprv_tzname() calls this in a hack to get the time zone name

group: dir_io
    opendir closedir readdir  # for a hack to get the time zone name

group: mmap_functions  # for memory-mapped data loading
    mmap munmap

group: dlfcn
    dlopen dlclose dlsym  # called by putil.o only for icuplug.o

group: cplusplus
    __dynamic_cast
    # The compiler generates references to the global operator delete
    # even when no code actually uses it.
    # ICU must not _use_ the global operator delete.
    "operator delete(void*)"
    # ICU also must not use the global operator new.
    # "operator new[](unsigned long)"

    # _Unwind_Resume is related to exceptions:
    # "A call to this routine is inserted as the end of a landing pad that performs cleanup,
    # but does not resume normal execution. It causes unwinding to proceed further."
    # (Linux Standard Base Specification 1.3)
    # Even though ICU does not actually use (nor handle) exceptions.
    _Unwind_Resume
    # std::terminate() looks similar to _Unwind_Resume:
    # "Calls the current terminate handler."
    std::terminate()

group: iostream
    "std::basic_ios<char, std::char_traits<char> >::clear(std::_Ios_Iostate)"
    "std::basic_ios<char, std::char_traits<char> >::eof() const"
    "std::basic_ios<char, std::char_traits<char> >::fail() const"
    "std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)"
    std::istream::get()
    std::istream::putback(char)
    # Additional symbols in an optimized build.
    "std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, long)"

# ICU common library --------------------------------------------------------- #

library: stubdata
    stubdata.o  # Exports icudt48_dat.

library: common
    # All files in the common library are listed in its dependencies.
  deps
    # Libraries and groups that the common library depends on.
    pluralmap
    date_interval
    breakiterator
    uts46 filterednormalizer2 normalizer2 loadednormalizer2 canonical_iterator
    normlzr unormcmp unorm
    idna2003 stringprep
    stringenumeration
    unistr_props unistr_case unistr_case_locale unistr_titlecase_brkiter unistr_cnv
    cstr
    uniset_core uniset_props uniset_closure usetiter uset uset_props
    uiter
    ucasemap ucasemap_titlecase_brkiter script_runs
    uprops ubidi_props ucase uscript uscript_props
    ubidi ushape
    listformatter
    resourcebundle service_registration resbund_cnv ures_cnv icudataver ucat
    loclikely
    currency
    locale_display_names2
    conversion converter_selector ucnv_set ucnvdisp
    messagepattern simpleformatter
    icu_utility icu_utility_with_props
    ustr_wcs
    unifiedcache
    ucharstriebuilder ucharstrieiterator
    bytestriebuilder bytestrieiterator
    hashtable uhash uvector uvector32 uvector64 ulist
    propsvec utrie2 utrie2_builder
    sort
    uinit utypes errorcode
    icuplug
    platform

group: pluralmap
    # TODO: Move to i18n library, ticket #11926.
    pluralmap.o
  deps
    platform

group: date_interval  # class DateInterval
    dtintrv.o
  deps
    platform

group: breakiterator
    # We could try to split off a breakiterator_builder group,
    # but we still need uniset_props for code like in the ThaiBreakEngine constructor
    # which does
    #   fThaiWordSet.applyPattern(UNICODE_STRING_SIMPLE("[[:Thai:]&[:LineBreak=SA:]]"), status)
    brkiter.o brkeng.o ubrk.o
    rbbi.o rbbinode.o rbbiscan.o rbbisetb.o rbbistbl.o rbbitblb.o
    rbbidata.o rbbirb.o
    dictionarydata.o dictbe.o
    # BreakIterator::makeInstance() factory implementation makes for circular dependency
    # between BreakIterator base and FilteredBreakIteratorBuilder.
    filteredbrk.o
  deps
    resourcebundle service_registration
    schriter utext uniset_core uniset_props
    uhash ustack utrie
    ucharstrie bytestrie
    ucharstriebuilder  # for filteredbrk.o
    normlzr  # for dictbe.o, should switch to Normalizer2
    uvector32 # for dictbe.o

group: unormcmp  # unorm_compare()
    unormcmp.o
  deps
    filterednormalizer2
    uniset_props  # for uniset_getUnicode32Instance()
    ucase

group: unorm  # old normalization C API
    unorm.o
  deps
    filterednormalizer2
    uniset_props  # for uniset_getUnicode32Instance()
    uiter

group: normlzr  # old Normalizer C++ class
    normlzr.o
  deps
    filterednormalizer2
    uniset_props  # for uniset_getUnicode32Instance()
    schriter

group: uts46
    uts46.o
  deps
    normalizer2 loadednormalizer2 punycode
    uchar  # for u_charType() (via U_GET_GC_MASK(c))
    ubidi_props  # for u_charDirection() & ubidi_getJoiningType()
    bytestream

group: filterednormalizer2
    filterednormalizer2.o
  deps
    normalizer2

group: idna2003
    uidna.o
  deps
    stringprep punycode

group: stringprep
    usprep.o
  deps
    unorm  # could change to use filterednormalizer2 directly for Unicode 3.2 normalization
    normalizer2
    ubidi_props

group: canonical_iterator
    caniter.o
  deps
    normalizer2 usetiter

group: loadednormalizer2
    loadednormalizer2impl.o
  deps
    normalizer2

group: normalizer2
    normalizer2.o
    normalizer2impl.o
  deps
    uniset_core
    utrie2_builder  # for building CanonIterData & FCD
    uvector  # for building CanonIterData
    uhash  # for the instance cache
    udata

group: punycode
    punycode.o
  deps
    platform

group: uset_props
    uset_props.o
  deps
    uniset_closure uniset_props uniset_core

group: uset
    uset.o
  deps
    uniset_core

group: uniset_closure
    uniset_closure.o
  deps
    uniset_core unistr_case_locale unistr_titlecase_brkiter

group: uniset_props
    uniset_props.o ruleiter.o
  deps
    uniset_core uprops unistr_case
    parsepos
    resourcebundle
    propname unames

group: parsepos
    parsepos.o
  deps
    platform

group: usetiter  # UnicodeSetIterator
    usetiter.o
  deps
    uniset_core

group: uniset_core
    unifilt.o unifunct.o
    uniset.o bmpset.o unisetspan.o
  deps
    patternprops
    icu_utility
    uvector

group: icu_utility_with_props
    util_props.o
  deps
    icu_utility uchar ucase

group: icu_utility
    util.o
  deps
    patternprops platform

group: utext
    utext.o
  deps
    ucase

group: stringenumeration
    ustrenum.o uenum.o
  deps
    platform

group: schriter
    schriter.o
    # The UCharCharacterIterator implements virtual void getText(UnicodeString& result)
    # so it depends on UnicodeString, therefore it makes little sense to split
    # schriter and uchriter into separate groups.
    uchriter.o
  deps
    chariter

group: chariter
    chariter.o
  deps
    platform

group: uiter
    uiter.o
  deps
    platform

group: unistr_cnv
    unistr_cnv.o
  deps
    conversion

group: cstr
    cstr.o
  deps
    unistr_cnv

group: uscript
    uscript.o  # uscript_getCode() accepts a locale ID and loads its script code data
  deps
    propname loclikely

group: uscript_props  # script metadata properties
    uscript_props.o
  deps
    platform

group: uprops
    uprops.o
  deps
    normalizer2 loadednormalizer2
    uchar
    ubidi_props
    unistr_case ustring_case  # only for case folding
    ucase

group: propname
    propname.o
  deps
    bytestrie

group: unames
    unames.o
  deps
    uchar udata

group: script_runs
    usc_impl.o
  deps
    uchar

group: uchar
    uchar.o
  deps
    utrie2

group: messagepattern  # for MessageFormat and tools
    messagepattern.o
  deps
    patternprops platform

group: simpleformatter
    simpleformatter.o
  deps
    platform

group: patternprops
    patternprops.o
  deps
    PIC

group: ushape
    ushape.o
  deps
    ubidi_props

group: ubidi
    ubidi.o ubidiln.o ubidiwrt.o
  deps
    ubidi_props
    uchar  # for doWriteReverse() which uses IS_COMBINING(u_charType(c))

group: ubidi_props
    ubidi_props.o
  deps
    utrie2

group: unistr_props
    unistr_props.o
  deps
    uchar platform

group: unistr_case_locale
    unistr_case_locale.o
  deps
    unistr_case ustring_case_locale

group: unistr_case
    unistr_case.o
  deps
    ustring_case

group: unistr_titlecase_brkiter
    unistr_titlecase_brkiter.o
  deps
    ustr_titlecase_brkiter

group: ustr_titlecase_brkiter
    ustr_titlecase_brkiter.o
  deps
    breakiterator
    ustring_case_locale ucase

group: ucasemap_titlecase_brkiter
    ucasemap_titlecase_brkiter.o
  deps
    ucasemap breakiterator utext

group: ucasemap
    ucasemap.o
  deps
    ustring_case
    resourcebundle  # uloc_getName() etc.

group: ustring_case_locale
    ustrcase_locale.o
  deps
    ustring_case
    resourcebundle  # for uloc_getDefault()

group: ustring_case
    ustrcase.o
  deps
    ucase

group: ucase
    ucase.o
  deps
    utrie2

group: uinit
    uinit.o
  deps
    ucnv_io icuplug

group: converter_selector
    ucnvsel.o
  deps
    conversion propsvec utrie2_builder uset ucnv_set

group: ucnvdisp  # ucnv_getDisplayName()
    ucnvdisp.o
  deps
    conversion resourcebundle

group: ucnv_set  # ucnv_getUnicodeSet
    ucnv_set.o
  deps
    uset

group: conversion
    ustr_cnv.o
    ucnv.o ucnv_cnv.o ucnv_bld.o ucnv_cb.o ucnv_err.o
    ucnv_ct.o
    ucnvmbcs.o ucnv_ext.o
    ucnvhz.o ucnvisci.o ucnv_lmb.o ucnv2022.o
    ucnvlat1.o ucnv_u7.o ucnv_u8.o ucnv_u16.o ucnv_u32.o
    ucnvbocu.o ucnvscsu.o
  deps
    ucnv_io

group: ucnv_io
    ucnv_io.o
  deps
    sort stringenumeration udata

group: service_registration
    serv.o servnotf.o servlkf.o servlk.o servls.o servrbf.o servslkf.o
    locutil.o
  deps
    locale_display_names resourcebundle
    hashtable uvector

group: listformatter
    listformatter.o ulistformatter.o
  deps
    resourcebundle simpleformatter

group: ucat  # message-catalog-like API
    ucat.o
  deps
    resourcebundle

group: locale_display_names
    locdispnames.o  # Locale.getDisplayName()
  deps
    locresdata

group: locale_display_names2
    locdspnm.o  # class LocaleDisplayNames
  deps
    resourcebundle currency simpleformatter unistr_titlecase_brkiter uchar

group: currency
    ucurr.o
  deps
    loclikely resourcebundle ulist ustring_case_locale
    stdlib_qsort  # for ucurr.o (which does not use ICU's uarrsort.o)

group: icudataver  # u_getDataVersion()
    icudataver.o
  deps
    resourcebundle

group: loclikely
    loclikely.o
  deps
    resourcebundle uscript_props propname

group: locresdata
    # This was intended to collect locale functions that load resource bundle data.
    # See the resourcebundle group about what else loads data.
    locresdata.o
  deps
    resourcebundle

group: resbund_cnv  # paths are Unicode strings
    resbund_cnv.o
  deps
    conversion resourcebundle ures_cnv

group: ures_cnv  # ures_openU, path is a Unicode string
    ures_cnv.o
  deps
    conversion resourcebundle

group: resourcebundle
    resource.o resbund.o uresbund.o uresdata.o
    locavailable.o
    # uloc_tag.c and uloc_keytype.cpp convert between
    # old ICU/LDML/CLDR locale IDs and newer BCP 47 IDs.
    # They use data from resource bundles for some of the mappings.
    # We might want to generate .h files for that data, to #include rather than load,
    # to minimize dependencies from this code.
    # Then we could separate this higher-level locale ID code from the resource bundle code.
    uloc.o uloc_tag.o uloc_keytype.o
    # Even basic locid.cpp via Locale constructors and Locale::getDefault()
    # depend on canonicalization and data loading.
    # We can probably only disentangle basic locale ID handling from resource bundle code
    # by hardcoding all of the locale ID data.
    locid.o locmap.o wintz.o
    # Do we need class LocaleBased? http://bugs.icu-project.org/trac/ticket/8608
    locbased.o
  deps
    udata ucol_swp
    sort stringenumeration uhash uvector

group: udata
    udata.o ucmndata.o udatamem.o
    umapfile.o
  deps
    uhash platform stubdata
    file_io mmap_functions

group: unifiedcache
    unifiedcache.o
  deps
    uhash
    platform

group: ucharstriebuilder
    ucharstriebuilder.o
  deps
    ucharstrie stringtriebuilder sort

group: ucharstrieiterator
    ucharstrieiterator.o
  deps
    ucharstrie uvector32

group: ucharstrie
    ucharstrie.o
  deps
    platform

group: bytestriebuilder
    bytestriebuilder.o
  deps
    bytestrie stringtriebuilder sort

group: bytestrieiterator
    bytestrieiterator.o
  deps
    bytestrie uvector32

group: bytestrie
    bytestrie.o
  deps
    platform

group: stringtriebuilder
    stringtriebuilder.o
  deps
    uhash

group: propsvec
    propsvec.o
  deps
    sort utrie2_builder

group: utrie2_builder
    utrie2_builder.o
  deps
    platform
    utrie2
    utrie  # for utrie2_fromUTrie()
    ucol_swp  # for utrie_swap()

group: utrie2
    utrie2.o
  deps
    platform

group: utrie  # Callers should use utrie2 instead.
    utrie.o
  deps
    platform

group: hashtable  # Maps UnicodeString to value.
    uhash_us.o
  deps
    uhash

group: uhash
    uhash.o
  deps
    platform

group: ustack
    ustack.o
  deps
    uvector

group: uvector
    uvector.o
  deps
    platform
    sort  # for UVector::sort()

group: uvector32
    uvectr32.o
  deps
    platform

group: uvector64
    uvectr64.o
  deps
    platform

group: ulist
    ulist.o
  deps
    platform

group: sort
    uarrsort.o
  deps
    platform

group: ustr_wcs
    ustr_wcs.o
  deps
    platform

group: bytestream
    bytestream.o
  deps
    platform

group: icuplug
    icuplug.o
  deps
    platform

group: ucol_swp
    ucol_swp.o
  deps
    utrie2  # Format version 4 uses UTrie2.

group: errorcode  # ErrorCode base class
    errorcode.o
  deps
    utypes
    platform

group: utypes  # u_errorName()
    utypes.o

group: platform
    # Files in the "platform" group.
    cmemory.o uobject.o
    cstring.o cwchar.o uinvchar.o
    charstr.o
    unistr.o  # for CharString::appendInvariantChars(const UnicodeString &s, UErrorCode &errorCode)
    appendable.o stringpiece.o ustrtrns.o  # for unistr.o
    ustring.o  # Other platform files really just need u_strlen
    ustrfmt.o  # uprv_itou
    utf_impl.o
    putil.o
    ucln_cmn.o  # for putil.o which calls ucln_common_registerCleanup
    udataswp.o  # for uinvchar.o; TODO: move uinvchar.o swapper functions to udataswp.o?
    umath.o
    umutex.o sharedobject.o
    utrace.o
  deps
    # The "platform" group has no ICU dependencies.
    PIC system_debug malloc_functions c_strings c_string_formatting
    floating_point pthread system_locale
    stdio_input readlink_function dir_io
    dlfcn  # Move related code into icuplug.c?
    cplusplus

# ICU i18n library ----------------------------------------------------------- #

library: i18n
  deps
    region localedata genderinfo charset_detector spoof_detection
    alphabetic_index collation collation_builder string_search
    formatting formattable_cnv regex regex_cnv translit
    universal_time_scale
    uclean_i18n

group: region
    region.o uregion.o
  deps
    formatting  # Temporary, TODO: Ticket #9982 class Region should use low-level ASCII-integer functions, and probably be moved to the common library.
    resourcebundle
    uvector uclean_i18n

group: localedata
    ulocdata.o
  deps
    uniset_props resourcebundle
    uset_props  # TODO: change to using C++ UnicodeSet, remove this dependency
    loclikely

group: genderinfo
    gender.o
  deps
    resourcebundle
    uclean_i18n

group: charset_detector
    csdetect.o csmatch.o csr2022.o csrecog.o csrmbcs.o csrsbcs.o csrucode.o csrutf8.o inputext.o ucsdet.o
  deps
    conversion
    uclean_i18n

group: spoof_detection
    uspoof.o uspoof_build.o uspoof_conf.o uspoof_impl.o uspoof_wsconf.o
    identifier_info.o scriptset.o
  deps
    uniset_props regex unorm uscript

group: alphabetic_index
    alphaindex.o
  deps
    collation localedata
    uclean_i18n

group: collation
    # The collation "runtime" code should not depend on the collation_builder code.
    # For example, loading from resource bundles does not fall back to
    # building from rules.
    collation.o collationcompare.o collationdata.o
    collationdatareader.o collationdatawriter.o
    collationfastlatin.o collationfcd.o collationiterator.o collationkeys.o
    collationroot.o collationrootelements.o collationsets.o
    collationsettings.o collationtailoring.o rulebasedcollator.o
    uitercollationiterator.o utf16collationiterator.o utf8collationiterator.o
    bocsu.o coleitr.o coll.o sortkey.o ucol.o
    ucol_res.o ucol_sit.o ucoleitr.o
  deps
    bytestream normalizer2 resourcebundle service_registration unifiedcache
    ucharstrieiterator uiter ulist uset usetiter uvector32 uvector64
    uclean_i18n propname

group: collation_builder
    collationbuilder.o collationdatabuilder.o collationfastlatinbuilder.o
    collationruleparser.o collationweights.o
  deps
    canonical_iterator collation ucharstriebuilder uset_props

group: string_search
    search.o stsearch.o usearch.o
  deps
    breakiterator collation

group: formatting
    # TODO: Try to subdivide this ball of wax.
    # currencyformat
    curramt.o currfmt.o currpinf.o currunit.o
    # decimalformat
    dcfmtsym.o numsys.o unumsys.o
    affixpatternparser.o decimfmtimpl.o digitaffix.o digitaffixesandpadding.o
    digitformatter.o digitgrouping.o digitinterval.o
    pluralaffix.o precision.o smallintformatter.o valueformatter.o
    decfmtst.o decimfmt.o decimalformatpattern.o compactdecimalformat.o
    numfmt.o unum.o
    winnmfmt.o
    # scientificnumberformatter - would depend on dcfmtsym, so would be circular.
    scientificnumberformatter.o
    # rbnf
    nfrs.o nfrule.o nfsubs.o rbnf.o
    # measureformat
    measfmt.o measunit.o quantityformatter.o
    # dateformat
    astro.o buddhcal.o calendar.o cecal.o chnsecal.o coptccal.o dangical.o ethpccal.o
    gregocal.o gregoimp.o hebrwcal.o indiancal.o islamcal.o japancal.o persncal.o taiwncal.o
    ucal.o
    basictz.o olsontz.o rbtz.o simpletz.o timezone.o tzrule.o tztrans.o
    vtzone.o vzone.o wintzimpl.o zonemeta.o zrule.o ztrans.o
    tzfmt.o tzgnames.o tznames.o tznames_impl.o
    datefmt.o dtfmtsym.o dtitvfmt.o dtitvinf.o dtptngen.o dtrule.o reldtfmt.o reldatefmt.o
    smpdtfmt.o smpdtfst.o udateintervalformat.o udatpg.o windtfmt.o
    udat.o
    tmunit.o tmutamt.o tmutfmt.o
    # messageformat
    choicfmt.o msgfmt.o plurfmt.o selfmt.o umsg.o
  deps
    digitlist formattable format
    pluralrules
    collation collation_builder  # for rbnf
    common
    floating_point  # sqrt() for astro.o
    trigonometry  # for astro.o
    sharedbreakiterator # for reldatefmt.o
    uclean_i18n

group: sharedbreakiterator
    sharedbreakiterator.o
  deps
    breakiterator

group: digitlist
    digitlst.o decContext.o decNumber.o visibledigits.o
  deps
    platform

group: formattable
    fmtable.o
    measure.o
  deps
    digitlist

group: formattable_cnv
    fmtable_cnv.o
  deps
    formattable unistr_cnv conversion

group: format
    format.o fphdlimp.o fpositer.o ufieldpositer.o
  deps
    resourcebundle parsepos uvector32

group: pluralrules
    standardplural.o plurrule.o upluralrules.o
  deps
    digitlist  # plurals depend on decimals
    patternprops resourcebundle uvector uvector32 unifiedcache
    unistr_case_locale
    uclean_i18n

group: regex_cnv
    uregexc.o
  deps
    regex unistr_cnv

group: regex
    regexcmp.o regexst.o regextxt.o regeximp.o rematch.o repattrn.o uregex.o
  deps
    uniset_closure utext uvector32 uvector64 ustack
    breakiterator
    uinit  # TODO: Really needed?
    uclean_i18n

group: translit
    anytrans.o brktrans.o casetrn.o cpdtrans.o name2uni.o uni2name.o nortrans.o remtrans.o titletrn.o tolowtrn.o toupptrn.o
    esctrn.o unesctrn.o nultrans.o
    funcrepl.o quant.o rbt.o rbt_data.o rbt_pars.o rbt_rule.o rbt_set.o strmatch.o strrepl.o translit.o transreg.o tridpars.o utrans.o
  deps
    common
    formatting  # for Transliterator::getDisplayName()
    uclean_i18n

group: universal_time_scale
    utmscale.o

group: uclean_i18n
    ucln_in.o
  deps
    platform

# ICU io library ------------------------------------------------------------- #

library: io
  deps
    ustdio ustream uclean_io

group: ustdio
    locbund.o sprintf.o sscanf.o ufile.o ufmt_cmn.o uprintf.o uprntf_p.o uscanf.o uscanf_p.o ustdio.o
  deps
    formatting conversion translit
    uclean_io
    stdio_output

group: ustream
    ustream.o
  deps
    unistr_cnv
    uchar  # for u_isWhitespace()
    iostream

group: uclean_io
    ucln_io.o
  deps
    platform