Freeze M4 files.

Copyright (C) 2002, 2004, 2006-2012 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 3 of the License, 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, see http://www.gnu.org/licenses/.

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Freeze M4 files.

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SUFFIXES = .m4 .m4f

AUTOM4TE_CFG = $(top_builddir)/lib/autom4te.cfg $(AUTOM4TE_CFG): $(top_srcdir)/lib/autom4te.in cd $(top_builddir)/lib && $(MAKE) $(AM_MAKEFLAGS) autom4te.cfg

Do not use AUTOM4TE here, since maint.mk (my-distcheck)

checks if we are independent of Autoconf by defining AUTOM4TE (and

others) to `false'. Autoconf provides autom4te, so that doesn't

apply to us.

MY_AUTOM4TE = \ autom4te_perllibdir='$(top_srcdir)'/lib \ AUTOM4TE_CFG='$(AUTOM4TE_CFG)' $(top_builddir)/bin/autom4te \ -B '$(top_builddir)'/lib -B '$(top_srcdir)'/lib # keep ` '

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 an 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)/lib build_libdir = $(top_builddir)/lib

m4f_dependencies = $(top_builddir)/bin/autom4te $(AUTOM4TE_CFG)

For parallel builds.

$(build_libdir)/m4sugar/version.m4: cd $(build_libdir)/m4sugar && $(MAKE) $(AM_MAKEFLAGS) version.m4

m4sugar_m4f_dependencies = \ $(m4f_dependencies) \ $(src_libdir)/m4sugar/m4sugar.m4 \ $(build_libdir)/m4sugar/version.m4

m4sh_m4f_dependencies = \ $(m4sugar_m4f_dependencies) \ $(src_libdir)/m4sugar/m4sh.m4

autotest_m4f_dependencies = \ $(m4sh_m4f_dependencies) \ $(src_libdir)/autotest/autotest.m4 \ $(src_libdir)/autotest/general.m4 \ $(src_libdir)/autotest/specific.m4

autoconf_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/erlang.m4 \ $(src_libdir)/autoconf/go.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

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Run ETAGS on some M4 code.

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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/'

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Looking for forbidden patterns.

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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