# This Makefile fragment tries to be general-purpose enough to be
# used by many projects via the gnulib maintainer-makefile module.
-## Copyright (C) 2001-2010 Free Software Foundation, Inc.
+## Copyright (C) 2001-2011 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
# Do not save the original name or timestamp in the .tar.gz file.
# Use --rsyncable if available.
gzip_rsyncable := \
- $(shell gzip --help 2>/dev/null|grep rsyncable >/dev/null && echo --rsyncable)
+ $(shell gzip --help 2>/dev/null|grep rsyncable >/dev/null \
+ && printf %s --rsyncable)
GZIP_ENV = '--no-name --best $(gzip_rsyncable)'
GIT = git
VC = $(GIT)
-VC-tag = git tag -s -m '$(VERSION)' -u '$(gpg_key_ID)'
VC_LIST = $(build_aux)/vc-list-files -C $(srcdir)
# In order to be able to consistently filter "."-relative names,
# (i.e., with no $(srcdir) prefix), this definition is careful to
# remove any $(srcdir) prefix, and to restore what it removes.
+_sc_excl = \
+ $(if $(exclude_file_name_regexp--$@),$(exclude_file_name_regexp--$@),^$$)
VC_LIST_EXCEPT = \
$(VC_LIST) | sed 's|^$(_dot_escaped_srcdir)/||' \
| if test -f $(srcdir)/.x-$@; then grep -vEf $(srcdir)/.x-$@; \
else grep -Ev -e "$${VC_LIST_EXCEPT_DEFAULT-ChangeLog}"; fi \
- | grep -Ev -e '$(VC_LIST_ALWAYS_EXCLUDE_REGEX)' \
+ | grep -Ev -e '($(VC_LIST_ALWAYS_EXCLUDE_REGEX)|$(_sc_excl))' \
$(_prepend_srcdir_prefix)
ifeq ($(origin prev_version_file), undefined)
# Override this in cfg.mk if you are using a different format in your
# NEWS file.
today = $(shell date +%Y-%m-%d)
+
+# Select which lines of NEWS are searched for $(news-check-regexp).
+# This is a sed line number spec. The default says that we search
+# lines 1..10 of NEWS for $(news-check-regexp).
+# If you want to search only line 3 or only lines 20-22, use "3" or "20,22".
+news-check-lines-spec ?= 1,10
news-check-regexp ?= '^\*.* $(VERSION_REGEXP) \($(today)\)'
# Prevent programs like 'sort' from considering distinct strings to be equal.
$(srcdir)/$(ME) $(_cfg_mk)))
.PHONY: $(syntax-check-rules)
-local-checks-available = \
- $(syntax-check-rules)
+ifeq ($(shell $(VC_LIST) >/dev/null 2>&1; echo $$?),0)
+local-checks-available += $(syntax-check-rules)
+else
+local-checks-available += no-vc-detected
+no-vc-detected:
+ @echo "No version control files detected; skipping syntax check"
+endif
.PHONY: $(local-checks-available)
# Arrange to print the name of each syntax-checking rule just before running it.
$(syntax-check-rules): %: %.m
-$(patsubst %, %.m, $(syntax-check-rules)):
+sc_m_rules_ = $(patsubst %, %.m, $(syntax-check-rules))
+.PHONY: $(sc_m_rules_)
+$(sc_m_rules_):
@echo $(patsubst sc_%.m, %, $@)
-
-local-check := $(filter-out $(local-checks-to-skip), $(local-checks-available))
+ @date +%s.%N > .sc-start-$(basename $@)
+
+# Compute and print the elapsed time for each syntax-check rule.
+sc_z_rules_ = $(patsubst %, %.z, $(syntax-check-rules))
+.PHONY: $(sc_z_rules_)
+$(sc_z_rules_): %.z: %
+ @end=$$(date +%s.%N); \
+ start=$$(cat .sc-start-$*); \
+ rm -f .sc-start-$*; \
+ awk -v s=$$start -v e=$$end \
+ 'END {printf "%.2f $(patsubst sc_%,%,$*)\n", e - s}' < /dev/null
+
+# The patsubst here is to replace each sc_% rule with its sc_%.z wrapper
+# that computes and prints elapsed time.
+local-check := \
+ $(patsubst sc_%, sc_%.z, \
+ $(filter-out $(local-checks-to-skip), $(local-checks-available)))
syntax-check: $(local-check)
-# @grep -nE '# *include <(limits|std(def|arg|bool))\.h>' \
-# $$(find -type f -name '*.[chly]') && \
-# { echo '$(ME): found conditional include' 1>&2; \
-# exit 1; } || :
-
-# grep -nE '^# *include <(string|stdlib)\.h>' \
-# $(srcdir)/{lib,src}/*.[chy] && \
-# { echo '$(ME): FIXME' 1>&2; \
-# exit 1; } || :
-# FIXME: don't allow `#include .strings\.h' anywhere
-
-# By default, _prohibit_regexp does not ignore case.
+
+# _sc_search_regexp
+#
+# This macro searches for a given construct in the selected files and
+# then takes some action.
+#
+# Parameters (shell variables):
+#
+# prohibit | require
+#
+# Regular expression (ERE) denoting either a forbidden construct
+# or a required construct. Those arguments are exclusive.
+#
+# in_vc_files | in_files
+#
+# grep-E-style regexp denoting the files to check. If no files
+# are specified the default are all the files that are under
+# version control.
+#
+# containing | non_containing
+#
+# Select the files (non) containing strings matching this regexp.
+# If both arguments are specified then CONTAINING takes
+# precedence.
+#
+# with_grep_options
+#
+# Extra options for grep.
+#
+# ignore_case
+#
+# Ignore case.
+#
+# halt
+#
+# Message to display before to halting execution.
+#
+# Finally, you may exempt files based on an ERE matching file names.
+# For example, to exempt from the sc_space_tab check all files with the
+# .diff suffix, set this Make variable:
+#
+# exclude_file_name_regexp--sc_space_tab = \.diff$
+#
+# Note that while this functionality is mostly inherited via VC_LIST_EXCEPT,
+# when filtering by name via in_files, we explicitly filter out matching
+# names here as well.
+
+# By default, _sc_search_regexp does not ignore case.
export ignore_case =
-_ignore_case = $$(test -n "$$ignore_case" && echo -i || :)
+_ignore_case = $$(test -n "$$ignore_case" && printf %s -i || :)
-# There are many rules below that prohibit constructs in this package.
-# If the offending construct can be matched with a grep-E-style regexp,
-# use this macro. The shell variables "re" and "msg" must be defined.
-define _prohibit_regexp
- dummy=; : so we do not need a semicolon before each use; \
- test "x$$re" != x || { echo '$(ME): re not defined' 1>&2; exit 1; }; \
- test "x$$msg" != x || { echo '$(ME): msg not defined' 1>&2; exit 1; };\
- grep $(_ignore_case) -nE "$$re" $$($(VC_LIST_EXCEPT)) && \
- { echo '$(ME): '"$$msg" 1>&2; exit 1; } || :
+define _sc_say_and_exit
+ dummy=; : so we do not need a semicolon before each use; \
+ { printf '%s\n' "$(ME): $$msg" 1>&2; exit 1; };
+endef
+
+# _sc_search_regexp used to be named _prohibit_regexp. However,
+# upgrading to the new definition and leaving the old name undefined
+# would usually convert each custom rule using $(_prohibit_regexp)
+# (usually defined in cfg.mk) into a no-op. This definition ensures
+# that people know right away if they're still using the old name.
+# FIXME: remove in 2012.
+_prohibit_regexp = \
+ $(error '*** you need to s/_prohibit_regexp/_sc_search_regexp/, and adapt')
+
+define _sc_search_regexp
+ dummy=; : so we do not need a semicolon before each use; \
+ \
+ : Check arguments; \
+ test -n "$$prohibit" && test -n "$$require" \
+ && { msg='Cannot specify both prohibit and require' \
+ $(_sc_say_and_exit) } || :; \
+ test -z "$$prohibit" && test -z "$$require" \
+ && { msg='Should specify either prohibit or require' \
+ $(_sc_say_and_exit) } || :; \
+ test -n "$$in_vc_files" && test -n "$$in_files" \
+ && { msg='Cannot specify both in_vc_files and in_files' \
+ $(_sc_say_and_exit) } || :; \
+ test "x$$halt" != x \
+ || { msg='halt not defined' $(_sc_say_and_exit) }; \
+ \
+ : Filter by file name; \
+ if test -n "$$in_files"; then \
+ files=$$(find $(srcdir) | grep -E "$$in_files" \
+ | grep -Ev '$(exclude_file_name_regexp--$@)'); \
+ else \
+ files=$$($(VC_LIST_EXCEPT)); \
+ if test -n "$$in_vc_files"; then \
+ files=$$(echo "$$files" | grep -E "$$in_vc_files"); \
+ fi; \
+ fi; \
+ \
+ : Filter by content; \
+ test -n "$$files" && test -n "$$containing" \
+ && { files=$$(grep -l "$$containing" $$files); } || :; \
+ test -n "$$files" && test -n "$$non_containing" \
+ && { files=$$(grep -vl "$$non_containing" $$files); } || :; \
+ \
+ : Check for the construct; \
+ if test -n "$$files"; then \
+ if test -n "$$prohibit"; then \
+ grep $$with_grep_options $(_ignore_case) -nE "$$prohibit" $$files \
+ && { msg="$$halt" $(_sc_say_and_exit) } || :; \
+ else \
+ grep $$with_grep_options $(_ignore_case) -LE "$$require" $$files \
+ | grep . \
+ && { msg="$$halt" $(_sc_say_and_exit) } || :; \
+ fi \
+ else :; \
+ fi || :;
endef
sc_avoid_if_before_free:
exit 1; } || :
sc_cast_of_argument_to_free:
- @re='\<free *\( *\(' msg='don'\''t cast free argument' \
- $(_prohibit_regexp)
+ @prohibit='\<free *\( *\(' halt='don'\''t cast free argument' \
+ $(_sc_search_regexp)
sc_cast_of_x_alloc_return_value:
- @re='\*\) *x(m|c|re)alloc\>' \
- msg='don'\''t cast x*alloc return value' \
- $(_prohibit_regexp)
+ @prohibit='\*\) *x(m|c|re)alloc\>' \
+ halt='don'\''t cast x*alloc return value' \
+ $(_sc_search_regexp)
sc_cast_of_alloca_return_value:
- @re='\*\) *alloca\>' msg='don'\''t cast alloca return value' \
- $(_prohibit_regexp)
+ @prohibit='\*\) *alloca\>' \
+ halt='don'\''t cast alloca return value' \
+ $(_sc_search_regexp)
sc_space_tab:
- @re='[ ] ' msg='found SPACE-TAB sequence; remove the SPACE' \
- $(_prohibit_regexp)
+ @prohibit='[ ] ' \
+ halt='found SPACE-TAB sequence; remove the SPACE' \
+ $(_sc_search_regexp)
# Don't use *scanf or the old ato* functions in `real' code.
# They provide no error checking mechanism.
# Instead, use strto* functions.
sc_prohibit_atoi_atof:
- @re='\<([fs]?scanf|ato([filq]|ll)) *\(' \
- msg='do not use *scan''f, ato''f, ato''i, ato''l, ato''ll or ato''q' \
- $(_prohibit_regexp)
+ @prohibit='\<([fs]?scanf|ato([filq]|ll)) *\(' \
+ halt='do not use *scan''f, ato''f, ato''i, ato''l, ato''ll or ato''q' \
+ $(_sc_search_regexp)
# Use STREQ rather than comparing strcmp == 0, or != 0.
sc_prohibit_strcmp:
- @grep -nE '! *str''cmp *\(|\<str''cmp *\([^)]+\) *==' \
+ @grep -nE '! *str''cmp *\(|\<str''cmp *\(.+\) *[!=]=' \
$$($(VC_LIST_EXCEPT)) \
- | grep -vE ':# *define STREQ\(' && \
- { echo '$(ME): use STREQ in place of the above uses of str''cmp' \
+ | grep -vE ':# *define STRN?EQ\(' && \
+ { echo '$(ME): replace str''cmp calls above with STREQ/STRNEQ' \
1>&2; exit 1; } || :
# Pass EXIT_*, not number, to usage, exit, and error (when exiting)
# | xargs --no-run-if-empty \
# perl -pi -e 's/(^|[^.])\b(exit ?)\(0\)/$1$2(EXIT_SUCCESS)/'
sc_prohibit_magic_number_exit:
- @re='(^|[^.])\<(usage|exit) ?\([0-9]|\<error ?\([1-9][0-9]*,' \
- msg='use EXIT_* values rather than magic number' \
- $(_prohibit_regexp)
+ @prohibit='(^|[^.])\<(usage|exit) ?\([0-9]|\<error ?\([1-9][0-9]*,' \
+ halt='use EXIT_* values rather than magic number' \
+ $(_sc_search_regexp)
# Using EXIT_SUCCESS as the first argument to error is misleading,
# since when that parameter is 0, error does not exit. Use `0' instead.
sc_error_exit_success:
- @grep -nE 'error \(EXIT_SUCCESS,' \
- $$($(VC_LIST_EXCEPT) | grep -E '\.[chly]$$') && \
- { echo '$(ME): found error (EXIT_SUCCESS' 1>&2; exit 1; } || :
+ @prohibit='error *\(EXIT_SUCCESS,' \
+ in_vc_files='\.[chly]$$' \
+ halt='found error (EXIT_SUCCESS' \
+ $(_sc_search_regexp)
# `FATAL:' should be fully upper-cased in error messages
# `WARNING:' should be fully upper-cased, or fully lower-cased
sc_error_message_warn_fatal:
- @grep -nEA2 '[^rp]error \(' $$($(VC_LIST_EXCEPT)) \
+ @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \
| grep -E '"Warning|"Fatal|"fatal' && \
{ echo '$(ME): use FATAL, WARNING or warning' 1>&2; \
exit 1; } || :
# Error messages should not start with a capital letter
sc_error_message_uppercase:
- @grep -nEA2 '[^rp]error \(' $$($(VC_LIST_EXCEPT)) \
+ @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \
| grep -E '"[A-Z]' \
| grep -vE '"FATAL|"WARNING|"Java|"C#|PRIuMAX' && \
{ echo '$(ME): found capitalized error message' 1>&2; \
# Error messages should not end with a period
sc_error_message_period:
- @grep -nEA2 '[^rp]error \(' $$($(VC_LIST_EXCEPT)) \
+ @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \
| grep -E '[^."]\."' && \
{ echo '$(ME): found error message ending in period' 1>&2; \
exit 1; } || :
sc_file_system:
- @re=file''system ignore_case=1 \
- msg='found use of "file''system"; spell it "file system"' \
- $(_prohibit_regexp)
+ @prohibit=file''system \
+ ignore_case=1 \
+ halt='found use of "file''system"; spell it "file system"' \
+ $(_sc_search_regexp)
# Don't use cpp tests of this symbol. All code assumes config.h is included.
sc_prohibit_have_config_h:
- @grep -n '^# *if.*HAVE''_CONFIG_H' $$($(VC_LIST_EXCEPT)) && \
- { echo '$(ME): found use of HAVE''_CONFIG_H; remove' \
- 1>&2; exit 1; } || :
+ @prohibit='^# *if.*HAVE''_CONFIG_H' \
+ halt='found use of HAVE''_CONFIG_H; remove' \
+ $(_sc_search_regexp)
# Nearly all .c files must include <config.h>. However, we also permit this
# via inclusion of a package-specific header, if cfg.mk specified one.
# config_h_header must be suitable for grep -E.
config_h_header ?= <config\.h>
sc_require_config_h:
- @if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \
- grep -EL '^# *include $(config_h_header)' \
- $$($(VC_LIST_EXCEPT) | grep '\.c$$') \
- | grep . && \
- { echo '$(ME): the above files do not include <config.h>' \
- 1>&2; exit 1; } || :; \
- else :; \
- fi
+ @require='^# *include $(config_h_header)' \
+ in_vc_files='\.c$$' \
+ halt='the above files do not include <config.h>' \
+ $(_sc_search_regexp)
# You must include <config.h> before including any other header file.
# This can possibly be via a package-specific header, if given by cfg.mk.
fi
sc_prohibit_HAVE_MBRTOWC:
- @re='\bHAVE_MBRTOWC\b' msg="do not use $$re; it is always defined" \
- $(_prohibit_regexp)
+ @prohibit='\bHAVE_MBRTOWC\b' \
+ halt="do not use $$prohibit; it is always defined" \
+ $(_sc_search_regexp)
# To use this "command" macro, you must first define two shell variables:
# h: the header, enclosed in <> or ""
# re: a regular expression that matches IFF something provided by $h is used.
-define _header_without_use
+define _sc_header_without_use
dummy=; : so we do not need a semicolon before each use; \
h_esc=`echo "$$h"|sed 's/\./\\\\./g'`; \
if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \
# Prohibit the inclusion of assert.h without an actual use of assert.
sc_prohibit_assert_without_use:
- @h='<assert.h>' re='\<assert *\(' $(_header_without_use)
+ @h='<assert.h>' re='\<assert *\(' $(_sc_header_without_use)
# Prohibit the inclusion of close-stream.h without an actual use.
sc_prohibit_close_stream_without_use:
- @h='"close-stream.h"' re='\<close_stream *\(' $(_header_without_use)
+ @h='"close-stream.h"' re='\<close_stream *\(' $(_sc_header_without_use)
# Prohibit the inclusion of getopt.h without an actual use.
sc_prohibit_getopt_without_use:
- @h='<getopt.h>' re='\<getopt(_long)? *\(' $(_header_without_use)
+ @h='<getopt.h>' re='\<getopt(_long)? *\(' $(_sc_header_without_use)
# Don't include quotearg.h unless you use one of its functions.
sc_prohibit_quotearg_without_use:
- @h='"quotearg.h"' re='\<quotearg(_[^ ]+)? *\(' $(_header_without_use)
+ @h='"quotearg.h"' re='\<quotearg(_[^ ]+)? *\(' $(_sc_header_without_use)
# Don't include quote.h unless you use one of its functions.
sc_prohibit_quote_without_use:
- @h='"quote.h"' re='\<quote(_n)? *\(' $(_header_without_use)
+ @h='"quote.h"' re='\<quote(_n)? *\(' $(_sc_header_without_use)
# Don't include this header unless you use one of its functions.
sc_prohibit_long_options_without_use:
@h='"long-options.h"' re='\<parse_long_options *\(' \
- $(_header_without_use)
+ $(_sc_header_without_use)
# Don't include this header unless you use one of its functions.
sc_prohibit_inttostr_without_use:
@h='"inttostr.h"' re='\<(off|[iu]max|uint)tostr *\(' \
- $(_header_without_use)
+ $(_sc_header_without_use)
+
+# Don't include this header unless you use one of its functions.
+sc_prohibit_ignore_value_without_use:
+ @h='"ignore-value.h"' re='\<ignore_(value|ptr) *\(' \
+ $(_sc_header_without_use)
# Don't include this header unless you use one of its functions.
sc_prohibit_error_without_use:
@h='"error.h"' \
re='\<error(_at_line|_print_progname|_one_per_line|_message_count)? *\('\
- $(_header_without_use)
+ $(_sc_header_without_use)
# Don't include xalloc.h unless you use one of its functions.
# Consider these symbols:
# perl -lne '/^# *define (\w+)\(/ and print $1' lib/xalloc.h|grep -v '^__';
-# perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) \(/ and print $1' lib/xalloc.h
+# perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) *\(/ and print $1' lib/xalloc.h
# Divide into two sets on case, and filter each through this:
# | sort | perl -MRegexp::Assemble -le \
# 'print Regexp::Assemble->new(file => "/dev/stdin")->as_string'|sed 's/\?://g'
sc_prohibit_xalloc_without_use:
@h='"xalloc.h"' \
re='\<($(_xa1)|$(_xa2)) *\('\
- $(_header_without_use)
+ $(_sc_header_without_use)
+
+# Extract function names:
+# perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) *\(/ and print $1' lib/hash.h
+_hash_re = \
+clear|delete|free|get_(first|next)|insert|lookup|print_statistics|reset_tuning
+_hash_fn = \<($(_hash_re)) *\(
+_hash_struct = (struct )?\<[Hh]ash_(table|tuning)\>
+sc_prohibit_hash_without_use:
+ @h='"hash.h"' \
+ re='$(_hash_fn)|$(_hash_struct)'\
+ $(_sc_header_without_use)
+
+sc_prohibit_cloexec_without_use:
+ @h='"cloexec.h"' re='\<(set_cloexec_flag|dup_cloexec) *\(' \
+ $(_sc_header_without_use)
+
+sc_prohibit_posixver_without_use:
+ @h='"posixver.h"' re='\<posix2_version *\(' $(_sc_header_without_use)
+
+sc_prohibit_same_without_use:
+ @h='"same.h"' re='\<same_name *\(' $(_sc_header_without_use)
+
+sc_prohibit_hash_pjw_without_use:
+ @h='"hash-pjw.h"' \
+ re='\<hash_pjw *\(' \
+ $(_sc_header_without_use)
sc_prohibit_safe_read_without_use:
@h='"safe-read.h"' re='(\<SAFE_READ_ERROR\>|\<safe_read *\()' \
- $(_header_without_use)
+ $(_sc_header_without_use)
sc_prohibit_argmatch_without_use:
@h='"argmatch.h"' \
re='(\<(ARRAY_CARDINALITY|X?ARGMATCH(|_TO_ARGUMENT|_VERIFY))\>|\<argmatch(_exit_fn|_(in)?valid) *\()' \
- $(_header_without_use)
+ $(_sc_header_without_use)
sc_prohibit_canonicalize_without_use:
@h='"canonicalize.h"' \
re='CAN_(EXISTING|ALL_BUT_LAST|MISSING)|canonicalize_(mode_t|filename_mode)' \
- $(_header_without_use)
+ $(_sc_header_without_use)
sc_prohibit_root_dev_ino_without_use:
@h='"root-dev-ino.h"' \
re='(\<ROOT_DEV_INO_(CHECK|WARN)\>|\<get_root_dev_ino *\()' \
- $(_header_without_use)
+ $(_sc_header_without_use)
sc_prohibit_openat_without_use:
@h='"openat.h"' \
re='\<(openat_(permissive|needs_fchdir|(save|restore)_fail)|l?(stat|ch(own|mod))at|(euid)?accessat)\>' \
- $(_header_without_use)
+ $(_sc_header_without_use)
# Prohibit the inclusion of c-ctype.h without an actual use.
ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\
|isprint|ispunct|isspace|isupper|isxdigit|tolower|toupper
sc_prohibit_c_ctype_without_use:
- @h='[<"]c-ctype.h[">]' re='\<c_($(ctype_re)) *\(' $(_header_without_use)
+ @h='[<"]c-ctype.h[">]' re='\<c_($(ctype_re)) *\(' \
+ $(_sc_header_without_use)
_empty =
_sp = $(_empty) $(_empty)
sc_prohibit_signal_without_use:
@h='<signal.h>' \
re='\<($(_sig_function_re)) *\(|\<($(_sig_syms_re))\>' \
- $(_header_without_use)
+ $(_sc_header_without_use)
+
+# Don't include stdio--.h unless you use one of its functions.
+sc_prohibit_stdio--_without_use:
+ @h='"stdio--.h"' re='\<((f(re)?|p)open|tmpfile) *\(' \
+ $(_sc_header_without_use)
+
+# Don't include stdio-safer.h unless you use one of its functions.
+sc_prohibit_stdio-safer_without_use:
+ @h='"stdio-safer.h"' re='\<((f(re)?|p)open|tmpfile)_safer *\(' \
+ $(_sc_header_without_use)
+
+# Prohibit the inclusion of strings.h without a sensible use.
+# Using the likes of bcmp, bcopy, bzero, index or rindex is not sensible.
+sc_prohibit_strings_without_use:
+ @h='<strings.h>' \
+ re='\<(strn?casecmp|ffs(ll)?)\>' \
+ $(_sc_header_without_use)
+
+# Get the list of symbol names with this:
+# perl -lne '/^# *define (\w+)\(/ and print $1' lib/intprops.h|grep -v '^s'|fmt
+_intprops_names = \
+ TYPE_IS_INTEGER TYPE_TWOS_COMPLEMENT TYPE_ONES_COMPLEMENT \
+ TYPE_SIGNED_MAGNITUDE TYPE_SIGNED TYPE_MINIMUM TYPE_MAXIMUM \
+ INT_STRLEN_BOUND INT_BUFSIZE_BOUND
+_intprops_syms_re = $(subst $(_sp),|,$(strip $(_intprops_names)))
+# Prohibit the inclusion of intprops.h without an actual use.
+sc_prohibit_intprops_without_use:
+ @h='"intprops.h"' \
+ re='\<($(_intprops_syms_re)) *\(' \
+ $(_sc_header_without_use)
+
+_stddef_syms_re = NULL|offsetof|ptrdiff_t|size_t|wchar_t
+# Prohibit the inclusion of stddef.h without an actual use.
+sc_prohibit_stddef_without_use:
+ @h='<stddef.h>' \
+ re='\<($(_stddef_syms_re)) *\(' \
+ $(_sc_header_without_use)
+
+# Don't include xfreopen.h unless you use one of its functions.
+sc_prohibit_xfreopen_without_use:
+ @h='"xfreopen.h"' re='\<xfreopen *\(' $(_sc_header_without_use)
sc_obsolete_symbols:
- @re='\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \
- msg='do not use HAVE''_FCNTL_H or O'_NDELAY \
- $(_prohibit_regexp)
+ @prohibit='\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \
+ halt='do not use HAVE''_FCNTL_H or O'_NDELAY \
+ $(_sc_search_regexp)
# FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
# Each nonempty ChangeLog line must start with a year number, or a TAB.
sc_changelog:
- @if $(VC_LIST_EXCEPT) | grep -l '^ChangeLog$$' >/dev/null; then \
- grep -n '^[^12 ]' \
- $$($(VC_LIST_EXCEPT) | grep '^ChangeLog$$') && \
- { echo '$(ME): found unexpected prefix in a ChangeLog' 1>&2; \
- exit 1; } || :; \
- fi
+ @prohibit='^[^12 ]' \
+ in_vc_files='^ChangeLog$$' \
+ halt='found unexpected prefix in a ChangeLog' \
+ $(_sc_search_regexp)
# Ensure that each .c file containing a "main" function also
# calls set_program_name.
sc_program_name:
- @if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \
- files=$$(grep -l '^main *(' $$($(VC_LIST_EXCEPT) | grep '\.c$$')); \
- grep -LE 'set_program_name *\(m?argv\[0\]\);' $$files \
- | grep . && \
- { echo '$(ME): the above files do not call set_program_name' \
- 1>&2; exit 1; } || :; \
- else :; \
- fi
+ @require='set_program_name *\(m?argv\[0\]\);' \
+ in_vc_files='\.c$$' \
+ containing='\<main *(' \
+ halt='the above files do not call set_program_name' \
+ $(_sc_search_regexp)
+
+# Ensure that each .c file containing a "main" function also
+# calls bindtextdomain.
+sc_bindtextdomain:
+ @require='bindtextdomain *\(' \
+ in_vc_files='\.c$$' \
+ containing='\<main *(' \
+ halt='the above files do not call bindtextdomain' \
+ $(_sc_search_regexp)
# Require that the final line of each test-lib.sh-using test be this one:
# Exit $fail
exit 1; } || :; \
fi
-sc_the_the:
- @re='\<the ''the\>' \
- ignore_case=1 msg='found use of "the ''the";' \
- $(_prohibit_regexp)
-
sc_trailing_blank:
- @re='[ ]$$' \
- msg='found trailing blank(s)' \
- $(_prohibit_regexp)
+ @prohibit='[ ]$$' \
+ halt='found trailing blank(s)' \
+ $(_sc_search_regexp)
# Match lines like the following, but where there is only one space
# between the options and the description:
# -D, --all-repeated[=delimit-method] print all duplicate lines\n
longopt_re = --[a-z][0-9A-Za-z-]*(\[?=[0-9A-Za-z-]*\]?)?
sc_two_space_separator_in_usage:
- @grep -nE '^ *(-[A-Za-z],)? $(longopt_re) [^ ].*\\$$' \
- $$($(VC_LIST_EXCEPT)) && \
- { echo "$(ME): help2man requires at least two spaces between"; \
- echo "$(ME): an option and its description"; \
- 1>&2; exit 1; } || :
+ @prohibit='^ *(-[A-Za-z],)? $(longopt_re) [^ ].*\\$$' \
+ halt='help2man requires at least two spaces between an option and its description'\
+ $(_sc_search_regexp)
+
+# A regexp matching function names like "error" that may be used
+# to emit translatable messages.
+_gl_translatable_diag_func_re ?= error
# Look for diagnostics that aren't marked for translation.
# This won't find any for which error's format string is on a separate line.
sc_unmarked_diagnostics:
@grep -nE \
- '\<error \([^"]*"[^"]*[a-z]{3}' $$($(VC_LIST_EXCEPT)) \
- | grep -v '_''(' && \
+ '\<$(_gl_translatable_diag_func_re) *\([^"]*"[^"]*[a-z]{3}' \
+ $$($(VC_LIST_EXCEPT)) \
+ | grep -Ev '(_|ngettext ?)\(' && \
{ echo '$(ME): found unmarked diagnostic(s)' 1>&2; \
exit 1; } || :
# Avoid useless parentheses like those in this example:
# #if defined (SYMBOL) || defined (SYM2)
sc_useless_cpp_parens:
- @grep -n '^# *if .*defined *(' $$($(VC_LIST_EXCEPT)) && \
- { echo '$(ME): found useless parentheses in cpp directive' \
- 1>&2; exit 1; } || :
+ @prohibit='^# *if .*defined *\(' \
+ halt='found useless parentheses in cpp directive' \
+ $(_sc_search_regexp)
+
+# List headers for which HAVE_HEADER_H is always true, assuming you are
+# using the appropriate gnulib module. CAUTION: for each "unnecessary"
+# #if HAVE_HEADER_H that you remove, be sure that your project explicitly
+# requires the gnulib module that guarantees the usability of that header.
+gl_assured_headers_ = \
+ cd $(gnulib_dir)/lib && echo *.in.h|sed 's/\.in\.h//g'
+
+# Convert the list of names to upper case, and replace each space with "|".
+az_ = abcdefghijklmnopqrstuvwxyz
+AZ_ = ABCDEFGHIJKLMNOPQRSTUVWXYZ
+gl_header_upper_case_or_ = \
+ $$($(gl_assured_headers_) \
+ | tr $(az_)/.- $(AZ_)___ \
+ | tr -s ' ' '|' \
+ )
+sc_prohibit_always_true_header_tests:
+ @or=$(gl_header_upper_case_or_); \
+ re="HAVE_($$or)_H"; \
+ prohibit='\<'"$$re"'\>' \
+ halt=$$(printf '%s\n' \
+ 'do not test the above HAVE_<header>_H symbol(s);' \
+ ' with the corresponding gnulib module, they are always true') \
+ $(_sc_search_regexp)
+
+# ==================================================================
+gl_other_headers_ ?= \
+ intprops.h \
+ openat.h \
+ stat-macros.h
+
+# Perl -lne code to extract "significant" cpp-defined symbols from a
+# gnulib header file, eliminating a few common false-positives.
+gl_extract_significant_defines_ = \
+ /^\# *define ([^_ (][^ (]*)(\s*\(|\s+\w+)/\
+ && $$2 !~ /(?:rpl_|_used_without_)/\
+ && $$1 !~ /^(?:NSIG|ATTRIBUTE_NORETURN)$$/\
+ and print $$1
+
+# Create a list of regular expressions matching the names
+# of macros that are guaranteed to be defined by parts of gnulib.
+define def_sym_regex
+ gen_h=$(gl_generated_headers_); \
+ (cd $(gnulib_dir)/lib; \
+ for f in *.in.h $(gl_other_headers_); do \
+ perl -lne '$(gl_extract_significant_defines_)' $$f; \
+ done; \
+ ) | sort -u \
+ | grep -Ev '^ATTRIBUTE_NORETURN' \
+ | sed 's/^/^ *# *(define|undef) */;s/$$/\\>/'
+endef
+
+# Don't define macros that we already get from gnulib header files.
+sc_prohibit_always-defined_macros:
+ @if test -d $(gnulib_dir); then \
+ case $$(echo all: | grep -l -f - Makefile) in Makefile);; *) \
+ echo '$(ME): skipping $@: you lack GNU grep' 1>&2; exit 0;; \
+ esac; \
+ $(def_sym_regex) | grep -E -f - $$($(VC_LIST_EXCEPT)) \
+ && { echo '$(ME): define the above via some gnulib .h file' \
+ 1>&2; exit 1; } || :; \
+ fi
+# ==================================================================
+
+# Prohibit checked in backup files.
+sc_prohibit_backup_files:
+ @$(VC_LIST) | grep '~$$' && \
+ { echo '$(ME): found version controlled backup file' 1>&2; \
+ exit 1; } || :
# Require the latest GPL.
sc_GPL_version:
- @re='either ''version [^3]' msg='GPL vN, N!=3' \
- $(_prohibit_regexp)
+ @prohibit='either ''version [^3]' \
+ halt='GPL vN, N!=3' \
+ $(_sc_search_regexp)
# Require the latest GFDL. Two regexp, since some .texi files end up
# line wrapping between 'Free Documentation License,' and 'Version'.
_GFDL_regexp = (Free ''Documentation.*Version 1\.[^3]|Version 1\.[^3] or any)
sc_GFDL_version:
- @re='$(_GFDL_regexp)' msg='GFDL vN, N!=3' \
- $(_prohibit_regexp)
+ @prohibit='$(_GFDL_regexp)' \
+ halt='GFDL vN, N!=3' \
+ $(_sc_search_regexp)
+
+# Don't use Texinfo's @acronym{}.
+# http://lists.gnu.org/archive/html/bug-gnulib/2010-03/msg00321.html
+texinfo_suffix_re_ ?= \.(txi|texi(nfo)?)$$
+sc_texinfo_acronym:
+ @prohibit='@acronym\{' \
+ in_vc_files='$(texinfo_suffix_re_)' \
+ halt='found use of Texinfo @acronym{}' \
+ $(_sc_search_regexp)
cvs_keywords = \
Author|Date|Header|Id|Name|Locker|Log|RCSfile|Revision|Source|State
sc_prohibit_cvs_keyword:
- @re='\$$($(cvs_keywords))\$$' \
- msg='do not use CVS keyword expansion' \
- $(_prohibit_regexp)
+ @prohibit='\$$($(cvs_keywords))\$$' \
+ halt='do not use CVS keyword expansion' \
+ $(_sc_search_regexp)
+
+# This Perl code is slightly obfuscated. Not only is each "$" doubled
+# because it's in a Makefile, but the $$c's are comments; we cannot
+# use "#" due to the way the script ends up concatenated onto one line.
+# It would be much more concise, and would produce better output (including
+# counts) if written as:
+# perl -ln -0777 -e '/\n(\n+)$/ and print "$ARGV: ".length $1' ...
+# but that would be far less efficient, reading the entire contents
+# of each file, rather than just the last two bytes of each.
+# In addition, while the code below detects both blank lines and a missing
+# newline at EOF, the above detects only the former.
+#
+# This is a perl script that is expected to be the single-quoted argument
+# to a command-line "-le". The remaining arguments are file names.
+# Print the name of each file that ends in exactly one newline byte.
+# I.e., warn if there are blank lines (2 or more newlines), or if the
+# last byte is not a newline. However, currently we don't complain
+# about any file that contains exactly one byte.
+# Exit nonzero if at least one such file is found, otherwise, exit 0.
+# Warn about, but otherwise ignore open failure. Ignore seek/read failure.
+#
+# Use this if you want to remove trailing empty lines from selected files:
+# perl -pi -0777 -e 's/\n\n+$/\n/' files...
+#
+require_exactly_one_NL_at_EOF_ = \
+ foreach my $$f (@ARGV) \
+ { \
+ open F, "<", $$f or (warn "failed to open $$f: $$!\n"), next; \
+ my $$p = sysseek (F, -2, 2); \
+ my $$c = "seek failure probably means file has < 2 bytes; ignore"; \
+ my $$last_two_bytes; \
+ defined $$p and $$p = sysread F, $$last_two_bytes, 2; \
+ close F; \
+ $$c = "ignore read failure"; \
+ $$p && ($$last_two_bytes eq "\n\n" \
+ || substr ($$last_two_bytes,1) ne "\n") \
+ and (print $$f), $$fail=1; \
+ } \
+ END { exit defined $$fail }
+sc_prohibit_empty_lines_at_EOF:
+ @perl -le '$(require_exactly_one_NL_at_EOF_)' $$($(VC_LIST_EXCEPT)) \
+ || { echo '$(ME): empty line(s) or no newline at EOF' \
+ 1>&2; exit 1; } || :
# Make sure we don't use st_blocks. Use ST_NBLOCKS instead.
# This is a bit of a kludge, since it prevents use of the string
# even in comments, but for now it does the job with no false positives.
sc_prohibit_stat_st_blocks:
- @re='[.>]st_blocks' msg='do not use st_blocks; use ST_NBLOCKS' \
- $(_prohibit_regexp)
+ @prohibit='[.>]st_blocks' \
+ halt='do not use st_blocks; use ST_NBLOCKS' \
+ $(_sc_search_regexp)
# Make sure we don't define any S_IS* macros in src/*.c files.
# They're already defined via gnulib's sys/stat.h replacement.
sc_prohibit_S_IS_definition:
- @re='^ *# *define *S_IS' \
- msg='do not define S_IS* macros; include <sys/stat.h>' \
- $(_prohibit_regexp)
+ @prohibit='^ *# *define *S_IS' \
+ halt='do not define S_IS* macros; include <sys/stat.h>' \
+ $(_sc_search_regexp)
+
+# Perl block to convert a match to FILE_NAME:LINENO:TEST,
+# that is shared by two definitions below.
+perl_filename_lineno_text_ = \
+ -e ' {' \
+ -e ' $$n = ($$` =~ tr/\n/\n/ + 1);' \
+ -e ' ($$v = $$&) =~ s/\n/\\n/g;' \
+ -e ' print "$$ARGV:$$n:$$v\n";' \
+ -e ' }'
+
+prohibit_doubled_word_RE_ ?= \
+ /\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims
+prohibit_doubled_word_ = \
+ -e 'while ($(prohibit_doubled_word_RE_))' \
+ $(perl_filename_lineno_text_)
+
+# Define this to a regular expression that matches
+# any filename:dd:match lines you want to ignore.
+# The default is to ignore no matches.
+ignore_doubled_word_match_RE_ ?= ^$$
+
+sc_prohibit_doubled_word:
+ @perl -n -0777 $(prohibit_doubled_word_) $$($(VC_LIST_EXCEPT)) \
+ | grep -vE '$(ignore_doubled_word_match_RE_)' \
+ | grep . && { echo '$(ME): doubled words' 1>&2; exit 1; } || :
+
+# A regular expression matching undesirable combinations of words like
+# "can not"; this matches them even when the two words appear on different
+# lines, but not when there is an intervening delimiter like "#" or "*".
+prohibit_undesirable_word_seq_RE_ ?= \
+ /\bcan\s+not\b/gims
+prohibit_undesirable_word_seq_ = \
+ -e 'while ($(prohibit_undesirable_word_seq_RE_))' \
+ $(perl_filename_lineno_text_)
+# Define this to a regular expression that matches
+# any filename:dd:match lines you want to ignore.
+# The default is to ignore no matches.
+ignore_undesirable_word_sequence_RE_ ?= ^$$
+
+sc_prohibit_undesirable_word_seq:
+ @perl -n -0777 $(prohibit_undesirable_word_seq_) \
+ $$($(VC_LIST_EXCEPT)) \
+ | grep -vE '$(ignore_undesirable_word_sequence_RE_)' | grep . \
+ && { echo '$(ME): undesirable word sequence' >&2; exit 1; } || :
+
+_ptm1 = use "test C1 && test C2", not "test C1 -''a C2"
+_ptm2 = use "test C1 || test C2", not "test C1 -''o C2"
+# Using test's -a and -o operators is not portable.
+# We prefer test over [, since the latter is spelled [[ in configure.ac.
+sc_prohibit_test_minus_ao:
+ @prohibit='(\<test| \[+) .+ -[ao] ' \
+ halt='$(_ptm1); $(_ptm2)' \
+ $(_sc_search_regexp)
+
+# Avoid a test bashism.
+sc_prohibit_test_double_equal:
+ @prohibit='(\<test| \[+) .+ == ' \
+ containing='#! */bin/[a-z]*sh' \
+ halt='use "test x = x", not "test x =''= x"' \
+ $(_sc_search_regexp)
# Each program that uses proper_name_utf8 must link with one of the
# ICONV libraries. Otherwise, some ICONV library must appear in LDADD.
# Warn about "c0nst struct Foo const foo[]",
# but not about "char const *const foo" or "#define const const".
sc_redundant_const:
- @re='\bconst\b[[:space:][:alnum:]]{2,}\bconst\b' \
- msg='redundant "const" in declarations' \
- $(_prohibit_regexp)
+ @prohibit='\bconst\b[[:space:][:alnum:]]{2,}\bconst\b' \
+ halt='redundant "const" in declarations' \
+ $(_sc_search_regexp)
sc_const_long_option:
@grep '^ *static.*struct option ' $$($(VC_LIST_EXCEPT)) \
# Ensure that we use only the standard $(VAR) notation,
# not @...@ in Makefile.am, now that we can rely on automake
# to emit a definition for each substituted variable.
-# We use perl rather than "grep -nE ..." to exempt a single
-# use of an @...@-delimited variable name in src/Makefile.am.
+# However, there is still one case in which @VAR@ use is not just
+# legitimate, but actually required: when augmenting an automake-defined
+# variable with a prefix. For example, gettext uses this:
+# MAKEINFO = env LANG= LC_MESSAGES= LC_ALL= LANGUAGE= @MAKEINFO@
+# otherwise, makeinfo would put German or French (current locale)
+# navigation hints in the otherwise-English documentation.
+#
# Allow the package to add exceptions via a hook in cfg.mk;
# for example, @PRAGMA_SYSTEM_HEADER@ can be permitted by
# setting this to ' && !/PRAGMA_SYSTEM_HEADER/'.
_makefile_at_at_check_exceptions ?=
sc_makefile_at_at_check:
- @perl -ne '/\@[A-Z_0-9]+\@/'$(_makefile_at_at_check_exceptions) \
+ @perl -ne '/\@[A-Z_0-9]+\@/' \
+ -e ' && !/([A-Z_0-9]+)\s+=.*\@\1\@$$/' \
+ -e ''$(_makefile_at_at_check_exceptions) \
-e 'and (print "$$ARGV:$$.: $$_"), $$m=1; END {exit !$$m}' \
- $$($(VC_LIST_EXCEPT) | grep -E '(^|/)Makefile\.am$$') \
+ $$($(VC_LIST_EXCEPT) | grep -E '(^|/)(Makefile\.am|[^/]+\.mk)$$') \
&& { echo '$(ME): use $$(...), not @...@' 1>&2; exit 1; } || :
news-check: NEWS
- if head $(srcdir)/NEWS | grep -E $(news-check-regexp) \
- >/dev/null; then \
+ if sed -n $(news-check-lines-spec)p $(srcdir)/NEWS \
+ | grep -E $(news-check-regexp) >/dev/null; then \
:; \
else \
echo 'NEWS: $$(news-check-regexp) failed to match' 1>&2; \
fi
sc_makefile_TAB_only_indentation:
- @grep -nE '^ [ ]{8}' \
- $$($(VC_LIST_EXCEPT) | grep -E 'akefile|\.mk$$') \
- && { echo '$(ME): found TAB-8-space indentation' 1>&2; \
- exit 1; } || :
+ @prohibit='^ [ ]{8}' \
+ in_vc_files='akefile|\.mk$$' \
+ halt='found TAB-8-space indentation' \
+ $(_sc_search_regexp)
sc_m4_quote_check:
- @grep -nE '(AC_DEFINE(_UNQUOTED)?|AC_DEFUN)\([^[]' \
- $$($(VC_LIST_EXCEPT) | grep -E '(^configure\.ac|\.m4)$$') \
- && { echo '$(ME): quote the first arg to AC_DEF*' 1>&2; \
- exit 1; } || :
+ @prohibit='(AC_DEFINE(_UNQUOTED)?|AC_DEFUN)\([^[]' \
+ in_vc_files='(^configure\.ac|\.m4)$$' \
+ halt='quote the first arg to AC_DEF*' \
+ $(_sc_search_regexp)
fix_po_file_diag = \
'you have changed the set of files with translatable diagnostics;\n\
apply the above patch\n'
# Verify that all source files using _() are listed in po/POTFILES.in.
-po_file = po/POTFILES.in
+po_file ?= $(srcdir)/po/POTFILES.in
+generated_files ?= $(srcdir)/lib/*.[ch]
sc_po_check:
@if test -f $(po_file); then \
grep -E -v '^(#|$$)' $(po_file) \
| grep -v '^src/false\.c$$' | sort > $@-1; \
files=; \
- for file in $$($(VC_LIST_EXCEPT)) lib/*.[ch]; do \
+ for file in $$($(VC_LIST_EXCEPT)) $(generated_files); do \
test -r $$file || continue; \
case $$file in \
*.m4|*.mk) continue ;; \
files="$$files $$file"; \
done; \
grep -E -l '\b(N?_|gettext *)\([^)"]*("|$$)' $$files \
- | sort -u > $@-2; \
+ | sed 's|^$(_dot_escaped_srcdir)/||' | sort -u > $@-2; \
diff -u -L $(po_file) -L $(po_file) $@-1 $@-2 \
|| { printf '$(ME): '$(fix_po_file_diag) 1>&2; exit 1; }; \
rm -f $@-1 $@-2; \
# path separator of `:', but rather the automake-provided `$(PATH_SEPARATOR)'.
msg = '$(ME): Do not use `:'\'' above; use $$(PATH_SEPARATOR) instead'
sc_makefile_path_separator_check:
- @grep -nE 'PATH[=].*:' \
- $$($(VC_LIST_EXCEPT) | grep -E 'akefile|\.mk$$') \
- && { echo $(msg) 1>&2; exit 1; } || :
+ @prohibit='PATH[=].*:' \
+ in_vc_files='akefile|\.mk$$' \
+ halt=$(msg) \
+ $(_sc_search_regexp)
# Check that `make alpha' will not fail at the end of the process.
writable-files:
test "$$fail" && exit 1 || : ; \
fi
-v_etc_file = lib/version-etc.c
+v_etc_file = $(gnulib_dir)/lib/version-etc.c
sample-test = tests/sample-test
texi = doc/$(PACKAGE).texi
# Make sure that the copyright date in $(v_etc_file) is up to date.
# Do the same for the $(sample-test) and the main doc/.texi file.
sc_copyright_check:
- @if test -f $(v_etc_file); then \
- grep 'enum { COPYRIGHT_YEAR = '$$(date +%Y)' };' $(v_etc_file) \
- >/dev/null \
- || { echo 'out of date copyright in $(v_etc_file); update it' 1>&2; \
- exit 1; }; \
- fi
- @if test -f $(sample-test); then \
- grep '# Copyright (C) '$$(date +%Y)' Free' $(sample-test) \
- >/dev/null \
- || { echo 'out of date copyright in $(sample-test); update it' 1>&2; \
- exit 1; }; \
- fi
- @if test -f $(texi); then \
- grep 'Copyright @copyright{} .*'$$(date +%Y)' Free' $(texi) \
- >/dev/null \
- || { echo 'out of date copyright in $(texi); update it' 1>&2; \
- exit 1; }; \
+ @require='enum { COPYRIGHT_YEAR = '$$(date +%Y)' };' \
+ in_files=$(v_etc_file) \
+ halt='out of date copyright in $(v_etc_file); update it' \
+ $(_sc_search_regexp)
+ @require='# Copyright \(C\) '$$(date +%Y)' Free' \
+ in_vc_files=$(sample-test) \
+ halt='out of date copyright in $(sample-test); update it' \
+ $(_sc_search_regexp)
+ @require='Copyright @copyright\{\} .*'$$(date +%Y)' Free' \
+ in_vc_files=$(texi) \
+ halt='out of date copyright in $(texi); update it' \
+ $(_sc_search_regexp)
+
+# If tests/help-version exists and seems to be new enough, assume that its
+# use of init.sh and path_prepend_ is correct, and ensure that every other
+# use of init.sh is identical.
+# This is useful because help-version cross-checks prog --version
+# with $(VERSION), which verifies that its path_prepend_ invocation
+# sets PATH correctly. This is an inexpensive way to ensure that
+# the other init.sh-using tests also get it right.
+_hv_file ?= $(srcdir)/tests/help-version
+_hv_regex_weak ?= ^ *\. .*/init\.sh"
+_hv_regex_strong ?= ^ *\. "\$${srcdir=\.}/init\.sh"
+sc_cross_check_PATH_usage_in_tests:
+ @if test -f $(_hv_file); then \
+ grep -l 'VERSION mismatch' $(_hv_file) >/dev/null \
+ || { echo "$@: skipped: no such file: $(_hv_file)" 1>&2; \
+ exit 0; }; \
+ grep -lE '$(_hv_regex_strong)' $(_hv_file) >/dev/null \
+ || { echo "$@: $(_hv_file) lacks conforming use of init.sh" 1>&2; \
+ exit 1; }; \
+ good=$$(grep -E '$(_hv_regex_strong)' $(_hv_file)); \
+ grep -LFx "$$good" \
+ $$(grep -lE '$(_hv_regex_weak)' $$($(VC_LIST_EXCEPT))) \
+ | grep . && \
+ { echo "$(ME): the above files use path_prepend_ inconsistently" \
+ 1>&2; exit 1; } || :; \
fi
# #if HAVE_... will evaluate to false for any non numeric string.
# tests many undefined macros, and so we can't enable that option.
# So at least preclude common boolean strings as macro values.
sc_Wundef_boolean:
- @grep -Ei '^#define.*(yes|no|true|false)$$' '$(CONFIG_INCLUDE)' && \
- { echo 'Use 0 or 1 for macro values' 1>&2; exit 1; } || :
+ @prohibit='^#define.*(yes|no|true|false)$$' \
+ in_files='$(CONFIG_INCLUDE)' \
+ halt='Use 0 or 1 for macro values' \
+ $(_sc_search_regexp)
+
+sc_vulnerable_makefile_CVE-2009-4029:
+ @prohibit='perm -777 -exec chmod a\+rwx|chmod 777 \$$\(distdir\)' \
+ in_files=$$(find $(srcdir) -name Makefile.in) \
+ halt=$$(printf '%s\n' \
+ 'the above files are vulnerable; beware of running' \
+ ' "make dist*" rules, and upgrade to fixed automake' \
+ ' see http://bugzilla.redhat.com/542609 for details') \
+ $(_sc_search_regexp)
vc-diff-check:
(unset CDPATH; cd $(srcdir) && $(VC) diff) > vc-diffs || :
&& gpgv .ann-sig - < /dev/null 2>&1 \
| sed -n '/.*key ID \([0-9A-F]*\)/s//\1/p'; rm -f .ann-sig)
+translation_project_ ?= coordinator@translationproject.org
+
+# Make info-gnu the default only for a stable release.
+ifeq ($(RELEASE_TYPE),stable)
+ announcement_Cc_ ?= $(translation_project_), $(PACKAGE_BUGREPORT)
+ announcement_mail_headers_ ?= \
+ To: info-gnu@gnu.org \
+ Cc: $(announcement_Cc_) \
+ Mail-Followup-To: $(PACKAGE_BUGREPORT)
+else
+ announcement_Cc_ ?= $(translation_project_)
+ announcement_mail_headers_ ?= \
+ To: $(PACKAGE_BUGREPORT) \
+ Cc: $(announcement_Cc_)
+endif
+
announcement: NEWS ChangeLog $(rel-files)
@$(build_aux)/announce-gen \
+ --mail-headers='$(announcement_mail_headers_)' \
--release-type=$(RELEASE_TYPE) \
--package=$(PACKAGE) \
--prev=$(PREV_VERSION) \
ftp-gnu = ftp://ftp.gnu.org/gnu
www-gnu = http://www.gnu.org
+upload_dest_dir_ ?= $(PACKAGE)
emit_upload_commands:
@echo =====================================
@echo =====================================
@echo "$(build_aux)/gnupload $(GNUPLOADFLAGS) \\"
- @echo " --to $(gnu_rel_host):$(PACKAGE) \\"
+ @echo " --to $(gnu_rel_host):$(upload_dest_dir_) \\"
@echo " $(rel-files)"
@echo '# send the ~/announce-$(my_distdir) e-mail'
@echo =====================================
@echo =====================================
-noteworthy = * Noteworthy changes in release ?.? (????-??-??) [?]
define emit-commit-log
printf '%s\n' 'post-release administrivia' '' \
'* NEWS: Add header line for next release.' \
: ; \
fi
+submodule-checks ?= no-submodule-changes public-submodule-commit
+
+# Ensure that each sub-module commit we're using is public.
+# Without this, it is too easy to tag and release code that
+# cannot be built from a fresh clone.
+.PHONY: public-submodule-commit
+public-submodule-commit:
+ $(AM_V_GEN)if test -d $(srcdir)/.git; then \
+ cd $(srcdir) && \
+ git submodule --quiet foreach test '$$(git rev-parse $$sha1)' \
+ = '$$(git merge-base origin $$sha1)' \
+ || { echo '$(ME): found non-public submodule commit' >&2; \
+ exit 1; }; \
+ else \
+ : ; \
+ fi
+# This rule has a high enough utility/cost ratio that it should be a
+# dependent of "check" by default. However, some of us do occasionally
+# commit a temporary change that deliberately points to a non-public
+# submodule commit, and want to be able to use rules like "make check".
+# In that case, run e.g., "make check gl_public_submodule_commit="
+# to disable this test.
+gl_public_submodule_commit ?= public-submodule-commit
+check: $(gl_public_submodule_commit)
+
.PHONY: alpha beta stable
ALL_RECURSIVE_TARGETS += alpha beta stable
-alpha beta stable: $(local-check) writable-files no-submodule-changes
+alpha beta stable: $(local-check) writable-files $(submodule-checks)
test $@ = stable \
&& { echo $(VERSION) | grep -E '^[0-9]+(\.[0-9]+)+$$' \
|| { echo "invalid version string: $(VERSION)" 1>&2; exit 1;};}\
# Override this in cfg.mk if you follow different procedures.
release-prep-hook ?= release-prep
+gl_noteworthy_news_ = * Noteworthy changes in release ?.? (????-??-??) [?]
.PHONY: release-prep
release-prep:
case $$RELEASE_TYPE in alpha|beta|stable) ;; \
*) echo "invalid RELEASE_TYPE: $$RELEASE_TYPE" 1>&2; exit 1;; esac
- $(MAKE) -s announcement > ~/announce-$(my_distdir)
+ $(MAKE) --no-print-directory -s announcement > ~/announce-$(my_distdir)
if test -d $(release_archive_dir); then \
ln $(rel-files) $(release_archive_dir); \
chmod a-w $(rel-files); \
fi
echo $(VERSION) > $(prev_version_file)
$(MAKE) update-NEWS-hash
- perl -pi -e '$$. == 3 and print "$(noteworthy)\n\n\n"' NEWS
+ perl -pi -e '$$. == 3 and print "$(gl_noteworthy_news_)\n\n\n"' NEWS
$(emit-commit-log) > .ci-msg
$(VC) commit -F .ci-msg -a
rm .ci-msg
+# Override this with e.g., -s $(srcdir)/some_other_name.texi
+# if the default $(PACKAGE)-derived name doesn't apply.
+gendocs_options_ ?=
+
.PHONY: web-manual
web-manual:
@test -z "$(manual_title)" \
&& { echo define manual_title in cfg.mk 1>&2; exit 1; } || :
@cd '$(srcdir)/doc'; \
- $(SHELL) ../build-aux/gendocs.sh -o '$(abs_builddir)/doc/manual' \
+ $(SHELL) ../build-aux/gendocs.sh $(gendocs_options_) \
+ -o '$(abs_builddir)/doc/manual' \
--email $(PACKAGE_BUGREPORT) $(PACKAGE) \
"$(PACKAGE_NAME) - $(manual_title)"
@echo " *** Upload the doc/manual directory to web-cvs."
echo 'en@quot' >> $(PODIR)/LINGUAS && \
ls $(PODIR)/*.po | sed 's/\.po//' | sed 's,$(PODIR)/,,' | sort >> $(PODIR)/LINGUAS
+ # Running indent once is not idempotent, but running it twice is.
INDENT_SOURCES ?= $(C_SOURCES)
.PHONY: indent
indent:
indent $(INDENT_SOURCES)
+ indent $(INDENT_SOURCES)
# If you want to set UPDATE_COPYRIGHT_* environment variables,
# put the assignments in this variable.
grep -l -w Copyright \
$$(export VC_LIST_EXCEPT_DEFAULT=COPYING && $(VC_LIST_EXCEPT)) \
| $(update-copyright-env) xargs $(build_aux)/$@
+
+# This tight_scope test is skipped with a warning if $(_gl_TS_headers) is not
+# overridden and $(_gl_TS_dir)/Makefile.am does not mention noinst_HEADERS.
+
+# NOTE: to override any _gl_TS_* default value, you must
+# define the variable(s) using "export" in cfg.mk.
+_gl_TS_dir ?= src
+
+ALL_RECURSIVE_TARGETS += sc_tight_scope
+sc_tight_scope: tight-scope.mk
+ @if ! grep '^ *export _gl_TS_headers *=' $(srcdir)/cfg.mk \
+ > /dev/null \
+ && ! grep -w noinst_HEADERS $(srcdir)/$(_gl_TS_dir)/Makefile.am \
+ > /dev/null 2>&1; then \
+ echo '$(ME): skipping $@'; \
+ else \
+ $(MAKE) -s -C $(_gl_TS_dir) \
+ -f Makefile \
+ -f $(abs_top_srcdir)/cfg.mk \
+ -f $(abs_top_builddir)/$< \
+ _gl_tight_scope \
+ || fail=1; \
+ fi
+ @rm -f $<
+
+tight-scope.mk: $(ME)
+ @rm -f $@ $@-t
+ @perl -ne '/^# TS-start/.../^# TS-end/ and print' $(ME) > $@-t
+ @chmod a=r $@-t && mv $@-t $@
+
+ifeq (a,b)
+# TS-start
+
+# Most functions should have static scope.
+# Any that don't must be marked with `extern', but `main'
+# and `usage' are exceptions: they're always extern, but
+# do not need to be marked. Symbols matching `__.*' are
+# reserved by the compiler, so are automatically excluded below.
+_gl_TS_unmarked_extern_functions ?= main usage
+_gl_TS_function_match ?= /^(?:$(_gl_TS_extern)) +.*?(\S+) +\(/
+
+# If your project uses a macro like "XTERN", then put
+# the following in cfg.mk to override this default:
+# export _gl_TS_extern = extern|XTERN
+_gl_TS_extern ?= extern
+
+# The second nm|grep checks for file-scope variables with `extern' scope.
+# Without gnulib's progname module, you might put program_name here.
+# Symbols matching `__.*' are reserved by the compiler,
+# so are automatically excluded below.
+_gl_TS_unmarked_extern_vars ?=
+
+# NOTE: the _match variables are perl expressions -- not mere regular
+# expressions -- so that you can extend them to match other patterns
+# and easily extract matched variable names.
+# For example, if your project declares some global variables via
+# a macro like this: GLOBAL(type, var_name, initializer), then you
+# can override this definition to automatically extract those names:
+# export _gl_TS_var_match = \
+# /^(?:$(_gl_TS_extern)) .*?\**(\w+)(\[.*?\])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/
+_gl_TS_var_match ?= /^(?:$(_gl_TS_extern)) .*?(\w+)(\[.*?\])?;/
+
+# The names of object files in (or relative to) $(_gl_TS_dir).
+_gl_TS_obj_files ?= *.$(OBJEXT)
+
+# Files in which to search for the one-line style extern declarations.
+# $(_gl_TS_dir)-relative.
+_gl_TS_headers ?= $(noinst_HEADERS)
+
+.PHONY: _gl_tight_scope
+_gl_tight_scope: $(bin_PROGRAMS)
+ t=exceptions-$$$$; \
+ trap 's=$$?; rm -f $$t; exit $$s' 0; \
+ for sig in 1 2 3 13 15; do \
+ eval "trap 'v=`expr $$sig + 128`; (exit $$v); exit $$v' $$sig"; \
+ done; \
+ src=`for f in $(SOURCES); do \
+ test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
+ hdr=`for f in $(_gl_TS_headers); do \
+ test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
+ ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_functions); \
+ grep -h -A1 '^extern .*[^;]$$' $$src \
+ | grep -vE '^(extern |--)' | sed 's/ .*//'; \
+ perl -lne \
+ '$(_gl_TS_function_match) and print "^$$1\$$"' $$hdr; \
+ ) | sort -u > $$t; \
+ nm -e $(_gl_TS_obj_files) | sed -n 's/.* T //p'|grep -Ev -f $$t \
+ && { echo the above functions should have static scope >&2; \
+ exit 1; } || : ; \
+ ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_vars); \
+ perl -lne '$(_gl_TS_var_match) and print "^$$1\$$"' $$hdr *.h \
+ ) | sort -u > $$t; \
+ nm -e $(_gl_TS_obj_files) | sed -n 's/.* [BCDGRS] //p' \
+ | sort -u | grep -Ev -f $$t \
+ && { echo the above variables should have static scope >&2; \
+ exit 1; } || :
+# TS-end
+endif