Hi José, you could look at libidn2 as an example how to use system libunistring if there (or if new enough) and fallback to gnulib unistring. (BTW, libunistring is made of the gnulib unistring modules)
It creates a separate dir / library for gnulib unistring functions, *BUT* only uses it when a system libunistring can't be found. bootstrap.conf: Call gnulib-tool in bootstrap_post_import_hook() only for the needed unistring modules. configure.ac: Check for system libunistring (set a conditional HAVE_LIBUNISTRING Makefile.am: if !HAVE_LIBUNISTRING -> add unistring/ to SUBDIR */Makefile.am: if !HAVE_LIBUNISTRING -> add unistring/ to includes in AM_CPPFLAGS I think, that's all. Regards, Tim On 1/13/20 11:33 AM, Bruno Haible wrote: > Hi José, > > Yesterday, you identified a set of functions from GNU libunistring that would > be useful to use in GNU poke. Since you will need only a few such functions, > which sums up to little code and only one big table, you can take the > respective modules from gnulib - a regular use of gnulib-tool. All the source > code of libunistring is in gnulib, distributed across ca. 350 modules. > > The list of modules is as follows. The relation between function name and > module name is obvious. > > unitypes > unistr/base > unistr/u8-check > unistr/u8-chr > unistr/u8-cmp > unistr/u8-cmp2 > unistr/u8-cpy > unistr/u8-cpy-alloc > unistr/u8-endswith > unistr/u8-mblen > unistr/u8-mbsnlen > unistr/u8-mbtouc > unistr/u8-mbtoucr > unistr/u8-mbtouc-unsafe > unistr/u8-move > unistr/u8-next > unistr/u8-prev > unistr/u8-set > unistr/u8-startswith > unistr/u8-stpcpy > unistr/u8-stpncpy > unistr/u8-strcat > unistr/u8-strchr > unistr/u8-strcmp > unistr/u8-strcoll > unistr/u8-strcpy > unistr/u8-strcspn > unistr/u8-strdup > unistr/u8-strlen > unistr/u8-strmblen > unistr/u8-strmbtouc > unistr/u8-strncat > unistr/u8-strncmp > unistr/u8-strncpy > unistr/u8-strnlen > unistr/u8-strpbrk > unistr/u8-strrchr > unistr/u8-strspn > unistr/u8-strstr > unistr/u8-strtok > unistr/u8-to-u16 > unistr/u8-to-u32 > unistr/u8-uctomb > unistr/u16-check > unistr/u16-chr > unistr/u16-cmp > unistr/u16-cmp2 > unistr/u16-cpy > unistr/u16-cpy-alloc > unistr/u16-endswith > unistr/u16-mblen > unistr/u16-mbsnlen > unistr/u16-mbtouc > unistr/u16-mbtoucr > unistr/u16-mbtouc-unsafe > unistr/u16-move > unistr/u16-next > unistr/u16-prev > unistr/u16-set > unistr/u16-startswith > unistr/u16-stpcpy > unistr/u16-stpncpy > unistr/u16-strcat > unistr/u16-strchr > unistr/u16-strcmp > unistr/u16-strcoll > unistr/u16-strcpy > unistr/u16-strcspn > unistr/u16-strdup > unistr/u16-strlen > unistr/u16-strmblen > unistr/u16-strmbtouc > unistr/u16-strncat > unistr/u16-strncmp > unistr/u16-strncpy > unistr/u16-strnlen > unistr/u16-strpbrk > unistr/u16-strrchr > unistr/u16-strspn > unistr/u16-strstr > unistr/u16-strtok > unistr/u16-to-u32 > unistr/u16-to-u8 > unistr/u16-uctomb > unistr/u32-check > unistr/u32-chr > unistr/u32-cmp > unistr/u32-cmp2 > unistr/u32-cpy > unistr/u32-cpy-alloc > unistr/u32-endswith > unistr/u32-mblen > unistr/u32-mbsnlen > unistr/u32-mbtouc > unistr/u32-mbtoucr > unistr/u32-mbtouc-unsafe > unistr/u32-move > unistr/u32-next > unistr/u32-prev > unistr/u32-set > unistr/u32-startswith > unistr/u32-stpcpy > unistr/u32-stpncpy > unistr/u32-strcat > unistr/u32-strchr > unistr/u32-strcmp > unistr/u32-strcoll > unistr/u32-strcpy > unistr/u32-strcspn > unistr/u32-strdup > unistr/u32-strlen > unistr/u32-strmblen > unistr/u32-strmbtouc > unistr/u32-strncat > unistr/u32-strncmp > unistr/u32-strncpy > unistr/u32-strnlen > unistr/u32-strpbrk > unistr/u32-strrchr > unistr/u32-strspn > unistr/u32-strstr > unistr/u32-strtok > unistr/u32-to-u16 > unistr/u32-to-u8 > unistr/u32-uctomb > uniconv/base > uniconv/u8-conv-from-enc > uniconv/u8-conv-to-enc > uniconv/u8-strconv-from-enc > uniconv/u8-strconv-from-locale > uniconv/u8-strconv-to-enc > uniconv/u8-strconv-to-locale > uniconv/u16-conv-from-enc > uniconv/u16-conv-to-enc > uniconv/u16-strconv-from-enc > uniconv/u16-strconv-from-locale > uniconv/u16-strconv-to-enc > uniconv/u16-strconv-to-locale > uniconv/u32-conv-from-enc > uniconv/u32-conv-to-enc > uniconv/u32-strconv-from-enc > uniconv/u32-strconv-from-locale > uniconv/u32-strconv-to-enc > uniconv/u32-strconv-to-locale > unistdio/base > unistdio/u8-asnprintf > unistdio/u8-asprintf > unistdio/u8-snprintf > unistdio/u8-sprintf > unistdio/u8-u8-asnprintf > unistdio/u8-u8-asprintf > unistdio/u8-u8-snprintf > unistdio/u8-u8-sprintf > unistdio/u8-u8-vasnprintf > unistdio/u8-u8-vasprintf > unistdio/u8-u8-vsnprintf > unistdio/u8-u8-vsprintf > unistdio/u8-vasnprintf > unistdio/u8-vasprintf > unistdio/u8-vsnprintf > unistdio/u8-vsprintf > unistdio/u16-asnprintf > unistdio/u16-asprintf > unistdio/u16-snprintf > unistdio/u16-sprintf > unistdio/u16-u16-asnprintf > unistdio/u16-u16-asprintf > unistdio/u16-u16-snprintf > unistdio/u16-u16-sprintf > unistdio/u16-u16-vasnprintf > unistdio/u16-u16-vasprintf > unistdio/u16-u16-vsnprintf > unistdio/u16-u16-vsprintf > unistdio/u16-vasnprintf > unistdio/u16-vasprintf > unistdio/u16-vsnprintf > unistdio/u16-vsprintf > unistdio/u32-asnprintf > unistdio/u32-asprintf > unistdio/u32-snprintf > unistdio/u32-sprintf > unistdio/u32-u32-asnprintf > unistdio/u32-u32-asprintf > unistdio/u32-u32-snprintf > unistdio/u32-u32-sprintf > unistdio/u32-u32-vasnprintf > unistdio/u32-u32-vasprintf > unistdio/u32-u32-vsnprintf > unistdio/u32-u32-vsprintf > unistdio/u32-vasnprintf > unistdio/u32-vasprintf > unistdio/u32-vsnprintf > unistdio/u32-vsprintf > unistdio/ulc-asnprintf > unistdio/ulc-asprintf > unistdio/ulc-fprintf > unistdio/ulc-snprintf > unistdio/ulc-sprintf > unistdio/ulc-vasnprintf > unistdio/ulc-vasprintf > unistdio/ulc-vfprintf > unistdio/ulc-vsnprintf > unistdio/ulc-vsprintf > uniname/base > uniname/uniname > unictype/base > unictype/bidiclass-all > unictype/block-all > unictype/category-all > unictype/combining-class-all > unictype/ctype-alnum > unictype/ctype-alpha > unictype/ctype-blank > unictype/ctype-cntrl > unictype/ctype-digit > unictype/ctype-graph > unictype/ctype-lower > unictype/ctype-print > unictype/ctype-punct > unictype/ctype-space > unictype/ctype-upper > unictype/ctype-xdigit > unictype/decimal-digit > unictype/digit > unictype/joininggroup-all > unictype/joiningtype-all > unictype/mirror > unictype/numeric > unictype/property-all > unictype/scripts-all > unictype/syntax-c-ident > unictype/syntax-c-whitespace > unictype/syntax-java-ident > unictype/syntax-java-whitespace > uniwidth/base > uniwidth/u8-strwidth > uniwidth/u8-width > uniwidth/u16-strwidth > uniwidth/u16-width > uniwidth/u32-strwidth > uniwidth/u32-width > uniwidth/width > unigbrk/base > unigbrk/u8-grapheme-breaks > unigbrk/u8-grapheme-next > unigbrk/u8-grapheme-prev > unigbrk/u16-grapheme-breaks > unigbrk/u16-grapheme-next > unigbrk/u16-grapheme-prev > unigbrk/u32-grapheme-breaks > unigbrk/u32-grapheme-next > unigbrk/u32-grapheme-prev > unigbrk/uc-gbrk-prop > unigbrk/uc-is-grapheme-break > unigbrk/ulc-grapheme-breaks > unigbrk/uc-grapheme-breaks > uniwbrk/base > uniwbrk/u8-wordbreaks > uniwbrk/u16-wordbreaks > uniwbrk/u32-wordbreaks > uniwbrk/ulc-wordbreaks > uniwbrk/wordbreak-property > unilbrk/base > unilbrk/u8-possible-linebreaks > unilbrk/u8-width-linebreaks > unilbrk/u16-possible-linebreaks > unilbrk/u16-width-linebreaks > unilbrk/u32-possible-linebreaks > unilbrk/u32-width-linebreaks > unilbrk/ulc-possible-linebreaks > unilbrk/ulc-width-linebreaks > uninorm/base > uninorm/canonical-decomposition > uninorm/composition > uninorm/decomposition > uninorm/filter > uninorm/nfc > uninorm/nfd > uninorm/nfkc > uninorm/nfkd > uninorm/u8-normalize > uninorm/u8-normcmp > uninorm/u8-normcoll > uninorm/u8-normxfrm > uninorm/u16-normalize > uninorm/u16-normcmp > uninorm/u16-normcoll > uninorm/u16-normxfrm > uninorm/u32-normalize > uninorm/u32-normcmp > uninorm/u32-normcoll > uninorm/u32-normxfrm > unicase/base > unicase/empty-prefix-context > unicase/empty-suffix-context > unicase/locale-language > unicase/tolower > unicase/totitle > unicase/toupper > unicase/u8-casecmp > unicase/u8-casecoll > unicase/u8-casefold > unicase/u8-casexfrm > unicase/u8-ct-casefold > unicase/u8-ct-tolower > unicase/u8-ct-totitle > unicase/u8-ct-toupper > unicase/u8-is-cased > unicase/u8-is-casefolded > unicase/u8-is-lowercase > unicase/u8-is-titlecase > unicase/u8-is-uppercase > unicase/u8-prefix-context > unicase/u8-suffix-context > unicase/u8-tolower > unicase/u8-totitle > unicase/u8-toupper > unicase/u16-casecmp > unicase/u16-casecoll > unicase/u16-casefold > unicase/u16-casexfrm > unicase/u16-ct-casefold > unicase/u16-ct-tolower > unicase/u16-ct-totitle > unicase/u16-ct-toupper > unicase/u16-is-cased > unicase/u16-is-casefolded > unicase/u16-is-lowercase > unicase/u16-is-titlecase > unicase/u16-is-uppercase > unicase/u16-prefix-context > unicase/u16-suffix-context > unicase/u16-tolower > unicase/u16-totitle > unicase/u16-toupper > unicase/u32-casecmp > unicase/u32-casecoll > unicase/u32-casefold > unicase/u32-casexfrm > unicase/u32-ct-casefold > unicase/u32-ct-tolower > unicase/u32-ct-totitle > unicase/u32-ct-toupper > unicase/u32-is-cased > unicase/u32-is-casefolded > unicase/u32-is-lowercase > unicase/u32-is-titlecase > unicase/u32-is-uppercase > unicase/u32-prefix-context > unicase/u32-suffix-context > unicase/u32-tolower > unicase/u32-totitle > unicase/u32-toupper > unicase/ulc-casecmp > unicase/ulc-casecoll > unicase/ulc-casexfrm > > Bruno > >
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