lib/freeze.mk

   1 # Freeze M4 files.
   2
   3 # Copyright (C) 2002, 2004, 2006 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 = $(top_builddir)/lib/autom4te.cfg
  26 $(AUTOM4TE_CFG): $(top_srcdir)/lib/autom4te.in
  27         cd $(top_builddir)/lib && $(MAKE) $(AM_MAKEFLAGS) autom4te.cfg
  28
  29 # Do not use AUTOM4TE here, since Makefile.maint (my-distcheck)
  30 # checks if we are independent of Autoconf by defining AUTOM4TE (and
  31 # others) to `false'.  Autoconf provides autom4te, so that doesn't
  32 # apply to us.
  33 MY_AUTOM4TE =                                                                   \
  34         autom4te_perllibdir='$(top_srcdir)'/lib                                 \
  35         AUTOM4TE_CFG='$(AUTOM4TE_CFG)'         $(top_builddir)/bin/autom4te     \
  36                 -B '$(top_builddir)'/lib -B '$(top_srcdir)'/lib        # keep ` '
  37
  38 # When processing the file with diversion disabled, there must be no
  39 # output but comments and empty lines.
  40 # If freezing produces output, something went wrong: a bad `divert',
  41 # or an improper paren etc.
  42 # It may happen that the output does not end with an end of line, hence
  43 # force an end of line when reporting errors.
  44 .m4.m4f:
  45         $(MY_AUTOM4TE)                          \
  46                 --language=$*                   \
  47                 --freeze                        \
  48                 --output=$@
  49
  50 # Factor the dependencies between all the frozen files.
  51 # Some day we should explain to Automake how to use autom4te to compute
  52 # the dependencies...
  53 src_libdir   = $(top_srcdir)/lib
  54 build_libdir = $(top_builddir)/lib
  55
  56 m4f_dependencies = $(top_builddir)/bin/autom4te $(AUTOM4TE_CFG)
  57
  58 # For parallel builds.
  59 $(build_libdir)/m4sugar/version.m4:
  60         cd $(build_libdir)/m4sugar && $(MAKE) $(AM_MAKEFLAGS) version.m4
  61
  62 m4sugar_m4f_dependencies =                      \
  63         $(m4f_dependencies)                     \
  64         $(src_libdir)/m4sugar/m4sugar.m4        \
  65         $(build_libdir)/m4sugar/version.m4
  66
  67 m4sh_m4f_dependencies =                         \
  68         $(m4sugar_m4f_dependencies)             \
  69         $(src_libdir)/m4sugar/m4sh.m4
  70
  71 autotest_m4f_dependencies =                     \
  72         $(m4sh_m4f_dependencies)                \
  73         $(src_libdir)/autotest/autotest.m4      \
  74         $(src_libdir)/autotest/general.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/functions.m4     \
  91         $(src_libdir)/autoconf/headers.m4       \
  92         $(src_libdir)/autoconf/types.m4         \
  93         $(src_libdir)/autoconf/libs.m4          \
  94         $(src_libdir)/autoconf/programs.m4      \
  95         $(src_libdir)/autoconf/autoconf.m4
  96
  97
  98 ## --------------------------- ##
  99 ## Run ETAGS on some M4 code.  ##
 100 ## --------------------------- ##
 101
 102 ETAGS_FOR_M4 = \
 103   --lang=none \
 104   --regex='/\(m4_define\|define\)(\[\([^]]*\)\]/\2/'
 105
 106 ETAGS_FOR_M4SUGAR = \
 107   $(ETAGS_FOR_M4) \
 108   --regex='/m4_defun(\[\([^]]*\)\]/\1/'
 109
 110 ETAGS_FOR_AUTOCONF = \
 111   $(ETAGS_FOR_M4SUGAR) \
 112   --regex='/\(A[CU]_DEFUN\|AU_ALIAS\)(\[\([^]]*\)\]/\2/' \
 113   --regex='/AN_\(FUNCTION\|HEADER\|IDENTIFIER\|LIBRARY\|MAKEVAR\|PROGRAM\)(\[\([^]]*\)\]/\2/'
 114
 115
 116 ## -------------------------------- ##
 117 ## Looking for forbidden patterns.  ##
 118 ## -------------------------------- ##
 119
 120 check-forbidden-patterns:
 121         @if (cd $(srcdir) && \
 122             $(GREP) $(forbidden_patterns) $(forbidden_patterns_files)) \
 123             >forbidden.log; then \
 124           echo "ERROR: forbidden patterns were found:" >&2; \
 125           sed "s|^|$*.m4: |" <forbidden.log >&2; \
 126           echo >&2; \
 127           exit 1; \
 128         else \
 129           rm -f forbidden.log; \
 130         fi