Add maintainer-makefile stuff.

1 files changed, 52 insertions, 0 deletions

diff --git a/maint.mk b/maint.mk
new file mode 100644
index 0000000..b5ae6d7
--- /dev/null
+++ b/maint.mk
@@ -0,0 +1,52 @@
+# -*-Makefile-*-
+# This Makefile fragment is intended to be useful by any GNU-like project.
+# This file originate from coreutils, CPPI, Bison, and Autoconf.
+
+## Copyright (C) 2001-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301, USA.
+
+ME := maint.mk
+
+# List of all C-like source code files that will be tested for
+# stylistic "errors".  You may want to define this to something 
+# more complex in Makefile.cfg.
+C_SOURCES ?= $(shell find . -name '*.[chly]')
+
+# Add some more files to check, typically set in Makefile.cfg.
+C_SOURCES += $(C_SOURCES_ADD)
+
+# Do not save the original name or timestamp in the .tar.gz file.
+# Use --rsyncable if available.
+gzip_rsyncable := \
+  $(shell gzip --help|grep rsyncable >/dev/null && echo --rsyncable)
+GZIP_ENV = '--no-name --best $(gzip_rsyncable)'
+
+# Prevent programs like 'sort' from considering distinct strings to be equal.
+# Doing it here saves us from having to set LC_ALL elsewhere in this file.
+export LC_ALL = C
+
+# Casting arguments to free is never necessary.
+sc_cast_of_argument_to_free:
+	@grep -nE '\<free *\( *\(' $(C_SOURCES) &&		\
+	  { echo '$(ME): don'\''t cast free argument' 1>&2;		\
+	    exit 1; } || :
+
+# Collect the names of rules starting with `sc_'.
+syntax-check-rules := $(shell sed -n 's/^\(sc_[a-zA-Z0-9_-]*\):.*/\1/p' $(ME))
+.PHONY: $(syntax-check-rules)
+
+syntax-check: $(syntax-check-rules)