lib/freeze.mk

   1 # Freeze M4 files.
   2
   3 # Copyright (C) 2002, 2004, 2006-2016 Free Software Foundation, Inc.
   4
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18
  19 ## ----------------- ##
  20 ## Freeze M4 files.  ##
  21 ## ----------------- ##
  22
  23 SUFFIXES += .m4 .m4f
  24
  25 AUTOM4TE_CFG = lib/autom4te.cfg
  26
  27 # Do not use AUTOM4TE here, since maint.mk (my-distcheck)
  28 # checks if we are independent of Autoconf by defining AUTOM4TE (and
  29 # others) to `false'.  Autoconf provides autom4te, so that doesn't
  30 # apply to us.
  31 MY_AUTOM4TE =                                                                   \
  32         autom4te_perllibdir='$(top_srcdir)'/lib                                 \
  33         AUTOM4TE_CFG='$(AUTOM4TE_CFG)'         $(top_builddir)/bin/autom4te     \
  34                 -B '$(top_builddir)'/lib -B '$(top_srcdir)'/lib        # keep ` '
  35
  36 # When processing the file with diversion disabled, there must be no
  37 # output but comments and empty lines.
  38 # If freezing produces output, something went wrong: a bad `divert',
  39 # or an improper paren etc.
  40 # It may happen that the output does not end with an end of line, hence
  41 # force an end of line when reporting errors.
  42 .m4.m4f:
  43         $(MKDIR_P) $(@D)
  44         lang=`echo '$*' | sed 's,.*/,,'` \
  45           && if test $$lang = autoconf; then \
  46                lang=autoconf-without-aclocal-m4; \
  47              else :; fi \
  48           && $(MY_AUTOM4TE) \
  49                 --language=$$lang \
  50                 --freeze \
  51                 --output=$@
  52
  53 # Factor the dependencies between all the frozen files.
  54 # Some day we should explain to Automake how to use autom4te to compute
  55 # the dependencies...
  56 src_libdir   = $(top_srcdir)/lib
  57 build_libdir = $(top_builddir)/lib
  58
  59 m4f_dependencies = $(top_builddir)/bin/autom4te $(AUTOM4TE_CFG)
  60
  61 m4sugar_m4f_dependencies =                      \
  62         $(m4f_dependencies)                     \
  63         $(src_libdir)/m4sugar/m4sugar.m4        \
  64         $(build_libdir)/m4sugar/version.m4
  65
  66 m4sh_m4f_dependencies =                         \
  67         $(m4sugar_m4f_dependencies)             \
  68         $(src_libdir)/m4sugar/m4sh.m4
  69
  70 autotest_m4f_dependencies =                     \
  71         $(m4sh_m4f_dependencies)                \
  72         $(src_libdir)/autotest/autotest.m4      \
  73         $(src_libdir)/autotest/general.m4       \
  74         $(src_libdir)/autotest/specific.m4
  75
  76 autoconf_m4f_dependencies =                     \
  77         $(m4sh_m4f_dependencies)                \
  78         $(src_libdir)/autoconf/autoscan.m4      \
  79         $(src_libdir)/autoconf/general.m4       \
  80         $(src_libdir)/autoconf/autoheader.m4    \
  81         $(src_libdir)/autoconf/autoupdate.m4    \
  82         $(src_libdir)/autoconf/autotest.m4      \
  83         $(src_libdir)/autoconf/status.m4        \
  84         $(src_libdir)/autoconf/oldnames.m4      \
  85         $(src_libdir)/autoconf/specific.m4      \
  86         $(src_libdir)/autoconf/lang.m4          \
  87         $(src_libdir)/autoconf/c.m4             \
  88         $(src_libdir)/autoconf/fortran.m4       \
  89         $(src_libdir)/autoconf/erlang.m4        \
  90         $(src_libdir)/autoconf/go.m4            \
  91         $(src_libdir)/autoconf/functions.m4     \
  92         $(src_libdir)/autoconf/headers.m4       \
  93         $(src_libdir)/autoconf/types.m4         \
  94         $(src_libdir)/autoconf/libs.m4          \
  95         $(src_libdir)/autoconf/programs.m4      \
  96         $(src_libdir)/autoconf/autoconf.m4
  97
  98
  99 ## --------------------------- ##
 100 ## Run ETAGS on some M4 code.  ##
 101 ## --------------------------- ##
 102
 103 ETAGS_FOR_M4 = \
 104   --lang=none \
 105   --regex='/\(m4_define\|define\)(\[\([^]]*\)\]/\2/'
 106
 107 ETAGS_FOR_M4SUGAR = \
 108   $(ETAGS_FOR_M4) \
 109   --regex='/m4_defun(\[\([^]]*\)\]/\1/'
 110
 111 ETAGS_FOR_AUTOCONF = \
 112   $(ETAGS_FOR_M4SUGAR) \
 113   --regex='/\(A[CU]_DEFUN\|AU_ALIAS\)(\[\([^]]*\)\]/\2/' \
 114   --regex='/AN_\(FUNCTION\|HEADER\|IDENTIFIER\|LIBRARY\|MAKEVAR\|PROGRAM\)(\[\([^]]*\)\]/\2/'
 115
 116
 117 ## -------------------------------- ##
 118 ## Looking for forbidden patterns.  ##
 119 ## -------------------------------- ##
 120
 121 check-forbidden-patterns:
 122         @if (cd $(srcdir) && \
 123             $(GREP) $(forbidden_patterns) $(forbidden_patterns_files)) \
 124             >forbidden.log; then \
 125           echo "ERROR: forbidden patterns were found:" >&2; \
 126           sed "s|^|$*.m4: |" <forbidden.log >&2; \
 127           echo >&2; \
 128           exit 1; \
 129         else \
 130           rm -f forbidden.log; \
 131         fi