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 *\(' \
re='\<($(_sig_function_re)) *\(|\<($(_sig_syms_re))\>' \
$(_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 *\(' \
+ $(_sc_header_without_use)
+
# Prohibit the inclusion of strings.h without a sensible use.
# Using the likes of bcmp, bcopy, bzero, index or rindex is not sensible.
sc_prohibit_strings_without_use:
re='\<($(_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:
@prohibit='\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \
halt='do not use HAVE''_FCNTL_H or O'_NDELAY \
exit 1; } || :; \
fi
-sc_the_the:
- @prohibit='\<the ''the\>' \
- ignore_case=1 \
- halt='found use of "the ''the";' \
- $(_sc_search_regexp)
-
sc_trailing_blank:
@prohibit='[ ]$$' \
halt='found trailing blank(s)' \
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}' $$($(VC_LIST_EXCEPT)) \
+ '\<$(_gl_translatable_diag_func_re) *\([^"]*"[^"]*[a-z]{3}' \
+ $$($(VC_LIST_EXCEPT)) \
| grep -Ev '(_|ngettext ?)\(' && \
{ echo '$(ME): found unmarked diagnostic(s)' 1>&2; \
exit 1; } || :
halt='do not define S_IS* macros; include <sys/stat.h>' \
$(_sc_search_regexp)
-prohibit_doubled_word_RE_ ?= \
- /\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims
-prohibit_doubled_word_ = \
- -e 'while ($(prohibit_doubled_word_RE_))' \
+# Perl 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:$$v\n";' \
-e ' }'
+prohibit_doubled_word_RE_ ?= \
+ /\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims
+prohibit_doubled_word_ = \
+ -e 'while ($(prohibit_doubled_word_RE_))' \
+ $(perl_filename_lineno_text_)
+
# Define this to a regular expression that matches
# any filename:dd:match lines you want to ignore.
# The default is to ignore no matches.
| grep -vE '$(ignore_doubled_word_match_RE_)' \
| grep . && { echo '$(ME): doubled words' 1>&2; exit 1; } || :
-sc_prohibit_can_not:
- @prohibit='\<can[ ]not\>' \
- halt='use "cannot", not "can'' not"' \
- $(_sc_search_regexp)
+# A regular expression matching undesirable combinations of words like
+# "can not"; this matches them even when the two words appear on different
+# lines, but not when there is an intervening delimiter like "#" or "*".
+prohibit_undesirable_word_seq_RE_ ?= \
+ /\bcan\s+not\b/gims
+prohibit_undesirable_word_seq_ = \
+ -e 'while ($(prohibit_undesirable_word_seq_RE_))' \
+ $(perl_filename_lineno_text_)
+# Define this to a regular expression that matches
+# any filename:dd:match lines you want to ignore.
+# The default is to ignore no matches.
+ignore_undesirable_word_sequence_RE_ ?= ^$$
+
+sc_prohibit_undesirable_word_seq:
+ @perl -n -0777 $(prohibit_undesirable_word_seq_) \
+ $$($(VC_LIST_EXCEPT)) \
+ | grep -vE '$(ignore_undesirable_word_sequence_RE_)' | grep . \
+ && { echo '$(ME): undesirable word sequence' >&2; exit 1; } || :
_ptm1 = use "test C1 && test C2", not "test C1 -''a C2"
_ptm2 = use "test C1 || test C2", not "test C1 -''o C2"
# Verify that all source files using _() are listed in po/POTFILES.in.
po_file ?= $(srcdir)/po/POTFILES.in
+generated_files ?= $(srcdir)/lib/*.[ch]
sc_po_check:
@if test -f $(po_file); then \
grep -E -v '^(#|$$)' $(po_file) \
| grep -v '^src/false\.c$$' | sort > $@-1; \
files=; \
- for file in $$($(VC_LIST_EXCEPT)) $(srcdir)/lib/*.[ch]; do \
+ for file in $$($(VC_LIST_EXCEPT)) $(generated_files); do \
test -r $$file || continue; \
case $$file in \
*.m4|*.mk) continue ;; \
release-prep:
case $$RELEASE_TYPE in alpha|beta|stable) ;; \
*) echo "invalid RELEASE_TYPE: $$RELEASE_TYPE" 1>&2; exit 1;; esac
- $(MAKE) -s announcement > ~/announce-$(my_distdir)
+ $(MAKE) --no-print-directory -s announcement > ~/announce-$(my_distdir)
if test -d $(release_archive_dir); then \
ln $(rel-files) $(release_archive_dir); \
chmod a-w $(rel-files); \
grep -l -w Copyright \
$$(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