## Freeze M4 files.## Copyright (C) 2002 Free Software Foundation, Inc.#### This program is free software; you can redistribute it and/or modify## it under the terms of the GNU General Public License as published by## the Free Software Foundation; either version 2, or (at your option)## any later version.#### This program is distributed in the hope that it will be useful,## but WITHOUT ANY WARRANTY; without even the implied warranty of## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the## GNU General Public License for more details.#### You should have received a copy of the GNU General Public License## along with this program; if not, write to the Free Software## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA## 02111-1307, USA.## ----------------- #### Freeze M4 files.  #### ----------------- ##SUFFIXES = .m4 .m4f# Do not use AUTOM4TE here, since Makefile.maint (my-distcheck)# checks if we are independent of Autoconf by defining AUTOM4TE (and# others) to `false'.  But we _ship_ tests/autom4te, so it doesn't# apply to us.MY_AUTOM4TE = $(top_builddir)/tests/autom4te$(MY_AUTOM4TE): $(top_srcdir)/tests/wrapper.in	cd $(top_builddir)/tests && $(MAKE) $(AM_MAKEFLAGS) autom4teAUTOM4TE_CFG = $(top_builddir)/lib/autom4te.cfg$(AUTOM4TE_CFG): $(top_srcdir)/lib/autom4te.in	cd $(top_builddir)/lib && $(MAKE) $(AM_MAKEFLAGS) autom4te.cfg# When processing the file with diversion disabled, there must be no# output but comments and empty lines.# If freezing produces output, something went wrong: a bad `divert',# or an improper paren etc.# It may happen that the output does not end with a end of line, hence# force an end of line when reporting errors..m4.m4f:	$(MY_AUTOM4TE)				\		--language=$*			\		--freeze			\		--output=$@# Factor the dependencies between all the frozen files.# Some day we should explain to Automake how to use autom4te to compute# the dependencies...src_libdir   = $(top_srcdir)/libbuild_libdir = $(top_builddir)/libm4f_dependencies = $(MY_AUTOM4TE) $(AUTOM4TE_CFG)# For parallel builds.$(build_libdir)/m4sugar/version.m4:	cd $(build_libdir)/m4sugar && $(MAKE) $(AM_MAKEFLAGS) version.m4m4sugar_m4f_dependencies =			\	$(m4f_dependencies)			\	$(src_libdir)/m4sugar/m4sugar.m4	\	$(build_libdir)/m4sugar/version.m4m4sh_m4f_dependencies =				\	$(m4sugar_m4f_dependencies)		\	$(src_libdir)/m4sugar/m4sh.m4autotest_m4f_dependencies = 			\	$(m4sh_m4f_dependencies)		\	$(src_libdir)/autotest/autotest.m4	\	$(src_libdir)/autotest/general.m4autoconf_m4f_dependencies =			\	$(m4sh_m4f_dependencies)		\	$(src_libdir)/autoconf/autoscan.m4	\	$(src_libdir)/autoconf/general.m4	\	$(src_libdir)/autoconf/autoheader.m4	\	$(src_libdir)/autoconf/autoupdate.m4	\	$(src_libdir)/autoconf/autotest.m4	\	$(src_libdir)/autoconf/status.m4	\	$(src_libdir)/autoconf/oldnames.m4	\	$(src_libdir)/autoconf/specific.m4	\	$(src_libdir)/autoconf/lang.m4		\	$(src_libdir)/autoconf/c.m4		\	$(src_libdir)/autoconf/fortran.m4	\	$(src_libdir)/autoconf/functions.m4	\	$(src_libdir)/autoconf/headers.m4	\	$(src_libdir)/autoconf/types.m4		\	$(src_libdir)/autoconf/libs.m4		\	$(src_libdir)/autoconf/programs.m4	\	$(src_libdir)/autoconf/autoconf.m4## --------------------------- #### Run ETAGS on some M4 code.  #### --------------------------- ##ETAGS_FOR_M4 = \  --lang=none \  --regex='/\(m4_define\|define\)(\[\([^]]*\)\]/\2/'ETAGS_FOR_M4SUGAR = \  $(ETAGS_FOR_M4) \  --regex='/m4_defun(\[\([^]]*\)\]/\1/'ETAGS_FOR_AUTOCONF = \  $(ETAGS_FOR_M4SUGAR) \  --regex='/\(A[CU]_DEFUN\|AU_ALIAS\)(\[\([^]]*\)\]/\2/' \  --regex='/AN_\(FUNCTION\|HEADER\|IDENTIFIER\|LIBRARY\|MAKEVAR\|PROGRAM\)(\[\([^]]*\)\]/\2/'## -------------------------------- #### Looking for forbidden patterns.  #### -------------------------------- ##check-forbidden-patterns:	if (cd $(srcdir) && \	    grep $(forbidden_patterns) $(forbidden_patterns_files)) \	    >forbidden.log; then \	  echo "ERROR: forbidden patterns were found:" >&2; \	  sed "s,^,$*.m4: ," <forbidden.log >&2; \	  echo >&2; \	  exit 1; \	else \	  rm -f forbidden.log; \	fi