lib/freeze.mk

   1 ## Freeze M4 files.
   2
   3 ## Copyright (C) 2002 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 2, or (at your option)
   8 ## 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, write to the Free Software
  17 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  18 ## 02111-1307, USA.
  19
  20
  21 ## ----------------- ##
  22 ## Freeze M4 files.  ##
  23 ## ----------------- ##
  24
  25 SUFFIXES = .m4 .m4f
  26
  27 # Do not use AUTOM4TE here, since Makefile.maint (my-distcheck)
  28 # checks if we are independent of Autoconf by defining AUTOM4TE (and
  29 # others) to `false'.  But we _ship_ tests/autom4te, so it doesn't
  30 # apply to us.
  31 MY_AUTOM4TE = $(top_builddir)/tests/autom4te
  32 $(MY_AUTOM4TE): $(top_srcdir)/tests/wrapper.in
  33         cd $(top_builddir)/tests && $(MAKE) $(AM_MAKEFLAGS) autom4te
  34
  35 AUTOM4TE_CFG = $(top_builddir)/lib/autom4te.cfg
  36 $(AUTOM4TE_CFG): $(top_srcdir)/lib/autom4te.in
  37         cd $(top_builddir)/lib && $(MAKE) $(AM_MAKEFLAGS) autom4te.cfg
  38
  39 # When processing the file with diversion disabled, there must be no
  40 # output but comments and empty lines.
  41 # If freezing produces output, something went wrong: a bad `divert',
  42 # or an improper paren etc.
  43 # It may happen that the output does not end with a end of line, hence
  44 # force an end of line when reporting errors.
  45 .m4.m4f:
  46         $(MY_AUTOM4TE)                          \
  47                 --language=$*                   \
  48                 --freeze                        \
  49                 --output=$@
  50
  51 # Factor the dependencies between all the frozen files.
  52 # Some day we should explain to Automake how to use autom4te to compute
  53 # the dependencies...
  54 src_libdir   = $(top_srcdir)/lib
  55 build_libdir = $(top_builddir)/lib
  56
  57 m4f_dependencies = $(MY_AUTOM4TE) $(AUTOM4TE_CFG)
  58
  59 # For parallel builds.
  60 $(build_libdir)/m4sugar/version.m4:
  61         cd $(build_libdir)/m4sugar && $(MAKE) $(AM_MAKEFLAGS) version.m4
  62
  63 m4sugar_m4f_dependencies =                      \
  64         $(m4f_dependencies)                     \
  65         $(src_libdir)/m4sugar/m4sugar.m4        \
  66         $(build_libdir)/m4sugar/version.m4
  67
  68 m4sh_m4f_dependencies =                         \
  69         $(m4sugar_m4f_dependencies)             \
  70         $(src_libdir)/m4sugar/m4sh.m4
  71
  72 autotest_m4f_dependencies =                     \
  73         $(m4sh_m4f_dependencies)                \
  74         $(src_libdir)/autotest/autotest.m4      \
  75         $(src_libdir)/autotest/general.m4
  76
  77 autoconf_m4f_dependencies =                     \
  78         $(m4sh_m4f_dependencies)                \
  79         $(src_libdir)/autoconf/autoscan.m4      \
  80         $(src_libdir)/autoconf/general.m4       \
  81         $(src_libdir)/autoconf/autoheader.m4    \
  82         $(src_libdir)/autoconf/autoupdate.m4    \
  83         $(src_libdir)/autoconf/autotest.m4      \
  84         $(src_libdir)/autoconf/status.m4        \
  85         $(src_libdir)/autoconf/oldnames.m4      \
  86         $(src_libdir)/autoconf/specific.m4      \
  87         $(src_libdir)/autoconf/lang.m4          \
  88         $(src_libdir)/autoconf/c.m4             \
  89         $(src_libdir)/autoconf/fortran.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