config/argz.mk

   1 # Generate argz.c and argz.in.h from glibc sources.
   2
   3 glibc_dir = ../glibc
   4 glibc_dir = /mirror/d/glibc
   5
   6 argz_names = \
   7   append addsep ctsep insert next stringify count \
   8   extract create delete replace
   9 argz_files = $(patsubst %, $(glibc_dir)/string/argz-%.c, $(argz_names))
  10
  11 define print-header
  12   printf '%s\n'                                                         \
  13 "/* Functions for dealing with '\0' separated arg vectors."             \
  14 "   Copyright (C) 1995-1998, 2000-2002, 2006, 2009-2021 Free Software
  15 "   Foundation, Inc."\
  16 "   This file is part of the GNU C Library."                            \
  17 ""                                                                      \
  18 "   This program is free software; you can redistribute it and/or modify"\
  19 "   it under the terms of the GNU General Public License as published by"\
  20 "   the Free Software Foundation; either version 2, or (at your option)"\
  21 "   any later version."                                                 \
  22 ""                                                                      \
  23 "   This program is distributed in the hope that it will be useful,"    \
  24 "   but WITHOUT ANY WARRANTY; without even the implied warranty of"     \
  25 "   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the"      \
  26 "   GNU General Public License for more details."                       \
  27 ""                                                                      \
  28 "   You should have received a copy of the GNU General Public License along"\
  29 "   with this program; if not, see <https://www.gnu.org/licenses/>.  */"        \
  30 ""                                                                      \
  31 "#include <config.h>"                                                   \
  32 ""                                                                      \
  33 "#include <argz.h>"                                                     \
  34 "#include <errno.h>"                                                    \
  35 "#include <stdlib.h>"                                                   \
  36 "#include <string.h>"
  37 endef
  38
  39 targets = argz.c argz.in.h
  40
  41 all: $(targets)
  42
  43 argz.c: $(argz_files)
  44         ($(print-header);                                               \
  45          for i in $^; do                                                \
  46            perl -pe 's/__(argz_|st|mem)/$$1/g' $$i                      \
  47              | perl -0x0 -pe 's,/\*(.|\n)+?\*/\n,,'                     \
  48              | grep -vE '^(#include|INTDEF|weak_alias|libc_hidden_def)'; \
  49          done) > $@-t && mv $@-t $@
  50
  51 argz.in.h: $(glibc_dir)/string/argz.h
  52         perl -pe 's/__(restrict|const|st|mem)/$$1/g;'                   \
  53             -e 's/\s*__THROW//;'                                        \
  54             -e 's/\s*__attribute_pure__//;'                             \
  55           $<                                                            \
  56           | perl -ne                                                    \
  57             '/^(#include <features\.h>|__(?:BEGIN|END)_DECLS)/ or print' \
  58           | perl -0x3b -pe 's/extern \S+ \*?__argz_(.|\n)*?\)\n*;//'    \
  59           | perl -pe 's/__(argz_next)/$$1/g;'                           \
  60           > $@-t && mv $@-t $@
  61
  62 clean:
  63         rm -f $(targets)